DIGITAL INDICATOR CSD-814B. Instruction Manual EN J

Transcription

1 DIGITAL INDICATOR CSD-814B Instruction Manual EN J

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3 FOREWORD Thank you very much for your purchasing our Digital Indicator CSD 814B. This manual explains installation procedures and connecting method and also operating method for Digital indicator CSD 814B. Make use of it properly after reading through the manual carefully. Be sure to deliver the manual to the end user. Moreover, the end user should keep the manual at hand after reading it over. I

4 Marks and arrangement used in this manual The following marks are attached to the explanation on the matters that indicate Don t do this., Take care. and For reference. Be sure to read these items where these marks are attached. Warning Warning may cause injury or accident that may harm to the operator. Don t do these things described here. Caution during operation and working. Be sure to read the item to prevent malfunction. Mark during operation Press the switch. II

5 For safe operation Be sure to read this manual before use. 1. Installation place Use the instrument where the temperature/humidity specifies within the range as follows: Environmental temperature Environmental humidity : : Less than 85 %R.H.Non condensing. (1) Location where installation is not allowed. Warning Don t locate the instrument on the places such as follows: It may cause an unexpected faulty in the instrument. Don t locate the instrument in direct and/or high temperature area. Don t use the instrument in a high humid area. Don t install the instrument where there is high mechanical vibration. Don t use the instrument where there is excess of dust and fine particles. Don t install the instrument near the devices that become magnetized or generate an electromagnetic field. Don t install the instrument where there is rapid change of temperature and humidity. Don t install the instrument near the devices that are magnetized or generate an electromagnetic field. Avoid the location where chemical reaction may take place such as in a laboratory. III

6 1 1. Installation When installing the instrument, install as referring to the following figures and secure the space around the instrument. Each dimension of the instrument and required dimensions for the environmental spaces are as follows: < Dimensions for installation > Front 192 Side (20.3) (46) 96 Rear 186 Panel cut size Unit : mm IV

7 2. Power supply Before supplying the power, check that the indication of power supply/specification for the instrument and the power going to supply should be the same. If they are not equal, contact us. If you use the instrument without checking them, it may cause a damage in the instrument or electric shock to the operator. Warning In order to prevent from a damage to the instrument and electric shock to the operator, be sure to check that power supply is off when installing each cable. Earth wire should be grounded securely. When earth wire is not connected, it may cause a malfunction of the instrument or electric shock to the operator. 3. Application Notes Warning Before using a new instrument or exchanging the strain gage applied transducer for a new one, be sure to make calibration. If calibration shall not be made, correct measured results may not be obtained nor which may cause malfunction in the instrument and there may exist damage in peripheral equipments. Besides, even though calibration has been made, there may occur the similar case when the result is not correct, so make calibration again. Warning In case of using the instrument, check that the connections are executed properly. If not connected properly, correct measured result will not be obtained, nor it may cause malfunctions of the instrument, damage to the peripheral equipments or even more serious accident. Warning When change of setting is made carelessly on the instrument during measurement, it may cause malfunction in the instrument and also possibilities of damage in peripheral instruments. V

8 Warning Do not shock the instrument such as throwing something on it. It may cause the damage to the case and even have the possibility of damage to the instrument in resisting to environment. Warning Do not push the panel sheet on the instrument with unnecessary strong force nor push it with sharp edge object such as driver It may cause a damage to the case or panel sheet and even have the possibility of damage to the instrument in resisting to environment or operational performance. Warning Do not remove the cover of the case and panel sheet, nor destroy the instrument. They may cause possibilities of damage to the instrument in resisting to environment or operational performance. At the time of shipment from the factory, the instrument has been plated with a clear sheet on the panel sheet for protective purpose. In case of application, use the instrument after removing the clearsheet first. VI

9 History of revision Date Instruction manual No. Details of revised point Remarks Sep DRW. NO.EN First version After Ver Apr Mar Aug Sep Oct Jan.2011 Oct.2011 May 2012 Mar 2015 Jan.2018 DRW. NO.EN A DRW. NO.EN B DRW. NO.EN C DRW. NO.EN D DRW.No.EN E DRW.No.EN F DRW.No.EN G DRW.No.EN H DRW.No.EN I DRW.No.EN J Due to ECN No.FN Addition At the warning column in the wiring section, the clause of As there is a case which standard wiring color is different, please confirm the inspection data sheet of the load cell being used. is added. Due to ECN No.FN Correction m 2 m+1 Due to ECN No.FN Correction Add the selectable function of turning ON/OFF for RUN indicator in status display section. [Since ROM Ver ] Due to ECN No. FN Correction Add the grounding terminal on the rear panel drawing. Due to ECN No. FN Trouble shooting Measure the voltage between the terminals of A and C on the rear panel terminal board. Measure the voltage between the terminals of A and C after shortening each of the terminals between A F, and C G on the rear panel terminal board. Due to ECN No. FN Change Minebea logo is changed Due to ECN No.FN Correction DE 9S N(JAE) to DE 9S NR by JAE or equivalent. Due to ECN No.FN Addition Connection with analog outputs is added. Due to ECN No. FN D Change Minebea logo is changed Due to ECN No.FN Correction Outline dimentions is changed. Due to ECN FN Delete the company name in the cover page. Delete the company name in the contents. Due to ECN FN Various kinds of functions Motion detect=>stabilization Filter Dueto ECN FN Add - Digi-Switch Interface is not supported for discontinued production. VII

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11 CONTENTS FORWARD... Marks and arrangement used in this manual For safe operation Installation place Installation Power supply Application Notes... Record of revision General Features Each name and function Front panel Rear panel Installation procedures Installation place Location where installation is not allowed Installation Connecting method Layout of terminal Note on connection Connection Connection with strain gage applied transducers Connection with external control input Connection with contact output Connection with power supply and ground Connection with options Calibration procedure Preparations Calibration procedures Calibration method to register the output of strain gage applied transducer at the time of maximum display after setting the loa Fine adjustment mode Selection of calibration procedures on each condition To make calibration on the instrument In case of executing recalibration Operating Procedures key When pressed with another key together simultaneously in Measurement mode Pressed with the condition of available setting for comparator S1, S2, S3, and S key Single key is pressed in Measurement mode

12 When pressed with the key together in Measurement mode When operated in fine adjustment mode for Zero and Span When operation is made in another mode key Single key is pressed in Measurement mode When pressed with the key together in Measurement mode When operated in fine adjustment mode for ZERO and SPAN Operation is made in another mode key Single key is pressed in Measurement mode When pressed with the key together in Measurement mode When operated in fine adjustment mode for ZERO and SPAN When operation is made in the other mode key Press key in the Measurement mode When operated in fine adjustment mode for ZERO and SPAN When operation is made in the other mode key When pressed in Measurement mode When operated in the fine adjustment mode for ZERO and SPAN when operation is made in the other mode key When pressed singly in Measurement mode When pressed with the key together in Measurement mode Pressed in the fine adjustment for ZERO and SPAN When operation is made in another mode č key Function and operation External control input signal, contact output signal External control input signal Contact output signal Equivalent circuit Comparator Change of set value Operation on comparator S1, S2, S3 and S Comparative target for comparator S1, S2, S3 and S Operation of comparator SO Hysteresis on comparator How to use filter Digital filter Zero tracking What is zero tracking? Setting related with zero tracking Target of Zero tracking Cancellation for compensation by zero tracking... 52

13 7 5. Stabilizing filter What is Stabilizing filter? Setting related with Stabilizing filter Various kinds of functions related with display Selection of target for display on load display Lighting up/putting off comparator set value Lighting up / Putting off bar meter display Lighting up conditions for bar meter display Selection of target for HOLD Display range for load Selection of display mode and / display mode Selection of ON/OFF for RUN indicator Change of bridge power supply voltage Tare (A/Z) Zero set Key lock CHECK value Short at the input of strain gage applied transducers Recording location for setting data and so on Check mode Operating procedures for check mode Monitor mode Function mode Setting method for Function mode Function on Function data Target for comparator and various kinds of optional outputs Options Analog output Related function Specifications for current output P/N. CSD814B P Specifications for voltage output P/N. CSD814B P Specifications for voltage output P/N. CSD814B P Specification for voltage output P/N. CSD814B P Specifications for voltage output P/N. CSD814B P Connection with analog outputs Scaling of analog output Absolute value output Fine adjustment 1 on analog output Fine adjustment 2 on analog output BCD output Related functions Specifications for BCD output Pin configuration for BCD output connector Equivalent circuit for input/output Timing chart Output condition RS 232C Interface Related function Specifications for interface Procedures of data transfer

14 Pin configuration for connector and connections Data format RS 422 Interface Related functions Specifications for Interface Procedures of data transfer Pin configuration on terminal board and their connections Data format Serial interface Related function Specifications for Interface Connecting method and internal equivalent circuit Data format Explanation of format data Explanation of output type Digi Switch Interface Related function Specifications for input/output Connector pin configuration for Digi Switch interface Connecting diagram for Digi Switch Equivalent circuit for input/output Number of steps for comparator Status display in 8 steps mode Operation of Digi Switch interface S1, S2, S3 and S Comparative target for Digi Switch interface S1, S2, S3 and S Operation of comparator S Hysteresis for Digi Switch interface Prohibition against reading Digi Switch Power supply voltage AC200 V(CSD814B P63) Layout of terminals Connection with power supply and the ground Troubleshooting Executing trouble shooting Error display Specifications Specifications for analog Specifications for digital Function of sheet key on front panel External Control Function Comparator function Output signal for contact Various kinds of functions General Specifications Specifications at the time of shipment Accessories Options Current output Voltage output BCD output RS 232C Interface Digi-Switc h I nterface is n ot sup ported for disc ontinu ed pro duction.

15 RS 422 Interface Serial interface Digi Switch interface Power supply voltage Combination with options Outline dimensions Warranty Warranty Repair Appendix Replacement of fuse Character s pattern for display Sample program Sample program for RS 232C Stream mode Sample program for Command mode Sample program for RS

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17 1. General The instrument is a digital indicator for the purpose of strain gage applied transducers Features Main features for CSD 814B are shown as follows: (1) Large load display The fluorescent character display tube that specifies 22 mm of character s height is prepared. (2) Bar meter display Due to the bar meter of 11 DOT, the percentage of present gross weight against the maximum display value can be displayed at the intervals of 10%. (3) Automatic calibration function By registering the data of rated output of strain gage applied transducer mv/v, calibration can be made automatically. 1

18 2. Each name and function 2 1. Front panel 1 Load display Displays Load data in Measurement mode, and displays status in various kinds of Calibration mode, and in Setting mode. 2 Bar meter display Bar meter of 11 dots that displays the ratio of present Gross weight against the maximum display value at the intervals of 10 %. 3 Setting display 4 kinds of set values such as S1,S2,S3 and S4 can be displayed. 4 Judgement display Compared result due to comparator function can be displayed. 5 Status display RUN : Lights up when the instrument is in the Measurement mode. (It is possible to turn off by the function setting.) A/Z : Lights up when TARE A/Z ONis executed. On the other hand, lights off when Tare is cancelleda/z OFF. LOCK : Lights up when shorted between the input terminals of LOCK and COM.1 for external control. During lighting up, front panel key operation can not be made. HOLD : Lights up when shorted between the input terminals of HOLD and COM.1 for external control unit. CHECK : Lights up when the CHECK is ON with the key pressed. 6 key By pressing with every key together, shift function for each key will become effective. 7 key 2

19 Used when S1 set value changing mode is required, and also carrying the values at the time of various kinds of set value is required. Also Tare (A/Z) will be executed by pressing thekey together. 8 key Used when S2 set value changing mode is required, and also when the digit down for the values are required at the time of various kinds of setting is applied. Also Tare Clear (A/Z OFF)can be executed by pressing thekey together. 9 key Used when S3 set value changing mode is required, and also used for the values of increment at the time of various kinds of setting is applied. Also by pressing the key together, Zero set (One touched zero point adjustment) can be executed. 10 key Used when S4 set value changing mode is required, and also used for the values of decrement at the time of various kinds of setting is applied. 11 key Used when transferring to the Function mode is applied. Also used when the target for fine adjustment is changed into whichever ZERO or SPAN in fine adjustment on ZERO/SPAN. 12 key Used when ON/OFF operation is made for the CHECK value. Also by pressing thekey together simultaneously, ZERO/SPAN fine adjustment can be entered. 13 key Used when registration for set value is required at the time of various kinds of setting is applied. 14 Position of the Unit seal is attached. As necessity requires, paste the Unit seal attached. 3

20 2 2. Rear panel Terminal board 1 Make connection with each of external control input ZERO, A/Z, A/Z OFF, HOLD, LOCK, A SEL, contact output RUN, S0, S1, S2, S3, S4 and ERROR. 2 Terminal board 2 Make connection with various kinds of strain gage applied transducer such as load cell, grounding wire and AC power supply. 3 Optional installing section 1 Whichever 1(one) among optional BCD output, RS 232C interface, RS 422 interface, Serial interface, and digital interface can be installed. When there is no option, the cover is attached. 4 Optional installing section 2 Whichever 1(one) can be installed from optional current output and voltage output. When there is no option, the cover is attached. 5 Protective earth terminals Connect the grounding wire. Digi-Switch Interface is not supported for discontinued production. 4

21 3. Installation procedures 3 1. Installation place Use the instrument where the temperature/humidity specifies within the range as follows: Environmental temperature Environmental humidity 10 to 50 Less than 85 % R.H.Non condensing Location where installation is not allowed. Warning Don t locate the instrument on the places such as follows: It will cause an unexpected faulty in the instrument. Don t locate the instrument in direct and/or high temperature area. Don t use the instrument in a high humid area. Don t install the instrument where there is high mechanical vibration. Don t use the instrument where there is excess of dust and fine particles. Don t install the instrument near the devices that becomes magnetized or generate an electromagnetic field. Don t install the instrument where there is rapid change of temperature and humidity. Don t install the instrument near the devices that are magnetized or generate an electromagnetic field. Avoid the location where chemical reaction may take place such as in a laboratory. 5

22 3 3. Installation When installing the instrument, install as referring to the following figures and secure the space around the instrument. Each dimension of the instrument and required dimensions for the environmental spaces are as follows: Front Side (20.3) (46) 96 Rear 186 Panel cut size Unit : mm 6

23 4. Connecting method 4 1. Layout of terminal 2 pieces of terminal boards and M3 screws are prepared on the rear panel of the instrument. Layout of terminal board are shown in the following table. 1 Terminals Upp per side ter ermina al board Terminal No. Name Usage Terminal No. Name Usage ZERO A A/Z F A/Z OFF HOLD LOCK A SEL COM. 1 F.G. RUN S0 S1 S2 S3 Control Input Frame Ground Contact Output Lowe wer side ter rminal bo oard G C D B E A.G. N.C. N.C. N.C. N.C. F.G. S4 GND ERROR AC COM. 2 AC Strain gage applied transducer Analog Ground Not used Flame Ground Power Supply 2 Protective earth terminals Name Usage Protective earth Between terminal No. COM1 and terminal No. COM2 is isolated. 7

24 4 2. Note on connection Warning In case of connection with the instrument, keep strictly to the following items. If neglected, it may cause an unexpected failure or a damage to the instrument. Set the power supply to OFF when connection is made. Since the terminal board at the rear side of the instrument is made of resin, take care not to drop it down nor apply strong impact. Be sure to apply the attached acrylic cover located on the terminal board. Recommended torque to tighten the terminal screw for terminal board is 0.8 Nm at maximum. The crimp type terminal lugs for the terminal board of the instrument are to be applied as follows: Terminal board Width of solderless terminal Suitable solderless terminal Terminal board mm or less or Y type Terminal board mm or less or Y type Protective earth terminial 7.2 mm or less or Y type Optional terminal board 6.3 mm or less or Y type Connecting cable with the instrument should be away from the noise source such as power supply line and I/O line for control as far as possible. Conduit wiring should be the type of exclusive one, and avoid using with another line together. Since the A.G. terminalterminal No.24 is internal analog gland for the purpose of maintenance, don t connect with externals. 8

25 4 3. Connection Connection with strain gage applied transducers The instrument can connect with strain gage applied transducers, such as load cell, pressure transducer and so on. Here, we will describe the example of connection with load cell, so connect with another strain gage applied transducers with the same way. 1 When tension is applied with the application of tension type or universal(compression/tension) type load cell, and display of + direction is required, connect green with Terminal No.22, and blue with Terminal No.21. As there is a case which standard wiring color is different, please confirm the inspection data sheet of the load cell being used. 2 When the total length of CAB 502 specifies more than 30 m, the accuracy may be out of warranty because the resistance of cable makes decrease the input voltage of the instrument. 3 There is no guarantee that the function of CAB 501 will work well if its length is totally more than 100 m. 1 Connection with one(1) point of load cell and CSD 814B RED WHT 1 GRN 1 BLU Shield Attached short bar 9

26 1 When tension is applied with the application of tension type or universal(compression/tension) type load cell, and display of + direction is required, connect green with Terminal No.22, and blue with Terminal No.21. As there is a case which standard wiring color is different, please confirm the inspection data sheet of the load cell being used. 2 When the total length of CAB 502 specifies more than 30 m, the accuracy may be out of warranty because the resistance of cable makes decrease the input voltage of the instrument. 3 There is no guarantee that the function of CAB 501 will work well if its length is totally more than 100 m. 2 Connection with one(1) point of load cell, Junction box B 304 for extension use and CSD 814B. i) In case of application of CAB 502(4 cores cable) Junction box 3m B 304 CAB 502 RED WHT 1 GRN 1 BLU Shield 2 (Length of CAB 502 should be within 30 m totally.) Attached short bar B 304 internal terminal connections To load cell RED BLU WHTGRN YEL(Shield) Terminal Pitch 9.5 mm RED BLU WHT GRN YEL(Shield) Suitable crimp type terminal lugs: or2 4 To CSD 814B 10

27 ii) In case of application of CAB 501(6 cores cable) Junction box 3m B 304 CAB 501 RED ORN BLK WHT 1 GRN 1 BLU Shield 3 (Length of CAB 502 should be within 30 m totally.) B 304 Internal terminal connection To Load cell RED BLU WHT GRN YEL(Shield) Suitable crimp type terminal lugs: or2 4 Terminal Pitch 9.5 mm ORN RED BLU BLK WHT GRN YEL(Shield) To CSD 814B 11

28 1 When tension is applied with the application of tension type or universal(compression/tension) type load cell, and display of + direction is required, connect green with Terminal No.22, and blue with Terminal No.21. As there is a case which standard wiring color is different, please confirm the inspection data sheet of the load cell being used. 2 When the total length of CAB 502 specifies more than 30 m, the accuracy may be out of warranty because the resistance of cable makes decrease the input voltage of the instrument. 3 There is no guarantee that the function of CAB 501 will work well if its length is totally more than 100 m. 3 Connection with 2 to 4 points of load cells and Summing type junction box with balance adjustment applied (B 307) and CSD 814B i) In case of application of CAB 502(4 cores cable) Junction box B 307 CAB 502 RED WHT 1 GRN 1 BLU Shield 2 (Length of CAB 502 should be within 30 m totally.) Attached short bar B 307 Internal terminal connection WHT RED GRN BLU YEL(Shield) WHT RED GRN BLU YEL(Shield) WHT RED GRN BLU YEL(Shield) WHT RED GRN BLU YEL(Shield) RED WHT GRN BLU YEL(Shield) To CSD 814B 12

29 ii) In case of application of CAB 501(6 cores cable) Junction box B 307 CAB 501 RED ORE BLK WHT 1 GRN 1 BLU Shield 2 (Length of CAB 501 should be within 100 m totally.) B 307 Internal terminal connection ) ) ) ) ) To CSD 814B 13

30 1 When tension is applied with the application of tension type of universal(compression/tension) type load cell, and display of + direction is required, connect green with Terminal No. 22, and blue with Terminal No. 21. As there is a case which standard wiring color is different, please confirm the inspection data sheet of the load cell being used. 2 When the total length of CAB 502 specified more than 30 m, the accuracy may be out of warranty because the resistance of cable makes decrease the input voltage of the instrument. 3 There is no guarantee that the function of CAB 501 will work well if its length is totally more than 100 m. 4 Connection with 2 to 4 points of load cells and Summing type junction box (SB 310) and CSD 814B. i) In case of application of CAB 502(4 cores cable) CAB 502 RED WHT 1 GRN 2 BLU Shield (Length of CAB 502 should be within 30 m totally) SB 310 Internal terminal connection Attached short bar Short bar To CSD 814B Output Point RD RD Input point 1 Input Point 4 WH GR BL YE RD RD Input point 2 RD Input point 3 Y type Suitable crimp type terminal lugs B A or B A Round type B:7 mm or less A:3.2 mm or less 14

31 ii) In case of application of CAB 501(6 cores cable) CAB 501 RED ORN BLK WHT 1 GRN 1 BLU Shield 3 (Length of CAB 501 should be within 100 m totally.) SB 310 Internal terminal connection SB 310 Internal terminal connection Short bar To CSD 814B Output Point Input Point 1 Input Point 2 Input Point 4 Input Point 3 Y type Suitable solderless terminal B A or B A Round type A: 3.2 mm or less B: 7 mm or less 15

32 Connection with external control input Connection with external control input of ZERO, A/Z, A/Z OFF, HOLD, LOCK and A SEL should be used with the contact between each terminal and COM 1 at terminal No.7, or with the open collector as the following figure indicates. As for the function for each input, refer to the paragraph 7 1. External control input, contact output. or Shield For the connection with external control input, be sure to apply shielded cable, and shielded cable should be connected with F.G. terminal (Terminal No.8) of the instrument. If not connected, it may cause malfunction due to the effect from external noise and so on. Warning Connection with external control input should be made securely as the figure indicates. If neglected, it may cause an unexpected malfunction to the instrument. 16

33 Connection with contact output Connection with contact output RUN, SO, S1, S2, S3, S4, ERROR and external load should be made between each terminal and COM. 2 on terminal No.16 as the following figure. At the same time, take care that the load should not exceed the rated contact of load. Rated load for contact AC125 V 0.1 A DC30 V 0.5 A Load For the connection with external terminal input, be sure to apply shielded cable, and shielded cable should be connected with F.G. terminal (Terminal No.8) of the instrument. If not connected, it may cause malfunction due to the effect from external noise and so on. Warning Connection with contact output should be made securely as the figure indicates and also used within rated capacity for contact. If neglected, it may cause an unexpected malfunction to the instrument. 17

34 Connection with power supply and ground Connection with power supply and ground should be made as the following figure. Grounding should be the D class with single earth. Power supply voltage AC100 V (AC85 V to AC132 V) Frequency for power supply 50/60 Hz Power consumption Approx. 22 VA(No option. At the time of AC100 V) Short Bar AC100 V to AC120V (Permissible variable range : AC85 V to AC132 V) 50/60 Hz Refer to the paragraph 9 7., when supply power source is AC200 V(Optional CSD814B P63) individually. Grounding should be the D class with single ground. If neglected, it may cause an unexpected malfunction due to the effects of noise from other equipments. Between the F.G. and GND is shorted with short bar. Warning Connection with power supply and ground should be made securely as the figure indicates and also should be used within the specified condition of power supply. If neglected, it may cause an unexpected failure Connection with options Refer to the section 9., as for the connection of options. 18

35 5. Calibration procedure Warning Before using the new instrument or after exchanging the sensor with new one, be sure to make calibration. If calibration is not made, correct measured results may not be obtained, nor it may cause malfunction to the instrument and it may damage the peripheral equipment. Moreover, even if calibration is made, there may occur the similar case as above when the result is not correct. So make precise calibration again. Calibration on the instrument are not interlocked with Display value at minimum analog output (FUNC 17), and Display value at maximum analog output (FUNC 18) when optional current output(csd814b P07) and voltage output(csd814b P23, P24, P25, P26) are installed. When this option(s) is installed, be sure to execute/check the setting of FUNC 17 and FUNC 18 at the time of calibration is applied. If neglected, it may be the case that correct output can t be obtained or cause of malfunction, and also it may cause a destroy in peripheral equipments Preparations According to the section 4. Connection method, connect the instrument and strain gage applied transducer properly and supply the power Calibration procedures Followings are the load calibration procedures for the instrument. 1 After setting the load to zero (Initial load condition with tare weight), register the output of strain gage applied transducer (conversion with mv/v) at the time of maximum display (weighing value). 2 After completing the above calibration, fine adjustment mode that compensates the difference of display when actual load is applied. In the calibration for, the accuracy is 1/1 000 or so. In the following items, we will describe each calibration procedure by showing the examples with the application of load cell. 19

36 Calibration method to register the output of strain gage applied transducer at the time of maximum display after setting the load to zero(0). Warning Before using the new instrument or after exchanging the sensor with new one, be sure to make calibration. If calibration is not made, correct measured results may not be obtained, nor it may cause malfunction to the instrument and it may damage the peripheral equipment. Moreover, even if calibration is made, there may occur the similar possibilities as above when the result is not correct. So make precise calibration again. When executing calibration, be sure to cancel Tare and also to cancel(cancellation of FUNC 98) the compensated data at zero setting, and set OFF zero tracking. (Set the FUNC 07, and FUNC 08 to ) If neglected, the calibration may not be executed properly. During calibration procedures, press the key in case of interrupting the calibration is needed. The calibration data will be kept as they are before entering the calibration, and then returns into Measurement mode. With the FUNC display at the load display section, when the key is pressed, the display will change as the following arrow marked display at every time the key is pressed. But, when the key is pressed, the display will change conversely to the arrow marked direction every time the key is pressed. However, as for the display of VCAL and VADJUST, it will display only when optional analog output is applied. FUNC CCAL CHECK MONIT VCAL VADJST FUNC CCAL (Hereinafter, it will repeat.) 20

37 Procedures Press thekey for about one second. Load display will show FUNC. 1 Press thekey once. Load display will show CCAL. 2 3 Press thekey. CCAL mode can be entered, then the load display will show D 01 and the digit of 10 0 will flash on and off. When the calibration has completed, the set value of minimum scale which has registered at that time will be displayed. Set the minimum scale with the right keys. Setting value for the minimum scale will be four(4) as follows: 1, 2, 5, 10, : Set value Increment key : Set value Decrement key : Set value Initialization key Press thekey. Load display will show DISP. 4 21

38 Procedures Press thekey. The load display will become 2000, and the digit of minimum display will flash on or off. When the calibration has completed, the set value of minimum scale which has registered at that time will be displayed. 5 By the setting of minimum scale, the digit of minimum display that flashes on and off will be as follows: The minimum scale digit The minimum scale digit Set the maximum display value with the right keys. Setting range for the maximum display will be (The minimum scale 100) In order to make good use of the performance, set within the following range: : Set value carry key : Set value digit down key : Set value Increment key. : Set value Decrement key. : Set value Initialization key. Setting range for maximum display value Minimum Scale By pressing the key continuously, increment/decrement can be provided continuously. Press thekey. Load display will show SMV. 6 22

39 Procedures 7 Press thekey. The load display will show , then the digit of 10 0 will flash on and off. In case that calibration has finished, the registered output value for load cell at that time will be shown. Set the output value for load cell corresponding to the maximum display value that has set in step 5 with the right keys. Though the number of digits has not prepared in the inspection data for load cell as many as shown in the right figure, too many figures are necessary for the compensation with the standard point internally. In case of actual setting, insert 0 into the extra digits. The values for extra digits will be rewritten automatically after making tare compensation and fine adjustment on load. Setting range for the output of load cell will be mv/v mv/v. : Set value carry key : Set value digit down key : Set value Increment key. : Set value Decrement key. : Set value Initialization key. By pressing the key continuously, increment/decrement can be provided continuously. 8 Press thekey. The loading display will show ZERO. Here, set the instrument with initial load application. 23

40 Procedures Press thekey. The load display will show with flashing display on and off, then zero adjustment can be started. Warning At the same time, take care not to apply load vibration due to vibration and so on. When load vibration is applied, there will be possibilities that zero point will be unstable, and precise reading of zero will not be obtained. 9 If completed, the load display will become T END. However, when the initial load is not entered within the range of 0.0 mv/v to 2.4 mv/v, the Error code shown in the right figure will be displayed for about 2 seconds, then the ZERO display will be shown on load display and returns to step 8. TER L : Zero point over TER H : Zero point + over Error Code Error Code 10 Press thekey. After CCAL mode is over, the load display will show the present load. 24

41 Fine adjustment mode. During tare cancellation(a/z) and zero set is executed, and during zero tracking is effective, fine adjustment mode can t be entered. (Displays ERR 5 ) When HOLD signal is input with the display or with the condition of target of hold(func 50) for option, fine adjustment mode can t be entered. When fine adjustment is made, be sure to cancel the HOLD input. Procedures With thekey pressed, press thekey together for 2 seconds. Fine adjustment mode can be entered, and present load value on the load display will flash on and off. The S1 display will show the counter value for coarse adjustment. S3 display will show ZERO S2 will show up to 1/10 of present load value. S4 will show the value (A/D value) operated internally. 1 When fine adjustment on load is required, complete the calibration on CCAL mode beforehand. In fine adjustment mode, cancellation of difference can be made, which has occurred due to the difference between calibration data and fundamental data of the instrument when actual load is applied. In case of interruption in fine adjustment, Measurement mode can be re entered by pressing thekey. In this case, up to the last data will be effective. 2 Set the instrument with initial load application. 25

42 Procedures Check that the S3 display shows ZERO. 3 When the S3 display shows SPAN, press thekey once. Then, check that S3 display changes to ZERO Adjust the display to 0 with the right keys by the following procedures. 1 Adjust so that the display shows the nearest zero with coarse adjustment keys. 2 Adjust the display to zero with fine adjustment key. In this case, more precise adjustment can be made if adjustment to 1/10 digit is made on the S2 display. By pressing the key continuously, increment/decrement can be provided continuously. Set the instrument with the condition of optional constant load applied Change the S3 display to SPAN by pressing key. : Zero coarse adjustment, display decreasing key. : Zero coarse adjustment, display increasing key. : Zero fine adjustment, display increasing key : Zero fine adjustment display decreasing key. 26

43 7 8 Procedures Set the display to the load value applied at present with the right keys. 1 When more than 20 % of difference against desired value is found, use the coarse adjustment key for span. 2 In case of less than 20 % of difference, use fine adjustment keys. At the same time, precise adjustment can be possible by adjusting to 1/10 digit on the S2 display. By pressing the key continuously, increment/decrement can be provided continuously. Set the instrument with initial load application. If the display differs, return to step 3. If the display isn t different, proceed to the next step. : Span coarse adjustment, display decreasing key. : Span coarse adjustment, display increasing key. : Span fine adjustment, display increasing key : Span fine adjustment display decreasing key. 9 Set the instrument with the condition of optional constant load applied. If the display differs, return to step 6. If the display isn t different, proceed to the next step. 10 Press thekey. After fine adjustment mode is over, Measurement mode can be re entered. (Flashing display will stop.) 27

44 5 3. Selection of calibration procedures on each condition. The instrument prepares following calibration procedures as shown in the paragraph 5 2., here we will show the conditions to execute actual calibration. (1) To make calibration on the instrument newly. (Combined inspection at our site is not executed.) When loading condition and output condition for load cell are clear (In case of desired accuracy is less than 1/1 000 or so.) When loading condition and output condition for load cell are clear (In case of desired accuracy is more than 1/1 000 or so.) Loading condition is clear, but output condition for load cell is unclear. (2) To make calibration again. To make calibration on tare weight only. (Combined inspection is executed at our site, and calibration is desired only for tare weight.) To execute fine adjustment on Zero and Span. 28

45 To make calibration on the instrument. When the new instrument is purchased, or re use is required with the new specific conditions, execute the calibration with whichever method as follows: (1) When loading condition and output condition for load cell are clear. (In case of desired accuracy is less than 1/1 000 or so.) Warning The calibration accuracy by the procedure is less than 1/1 000 or so. When more precise accuracy is required, make calibration with actual load according to the paragraph (2). The accuracy described here is combined accuracy with the instrument and the sensor to be connected with. If there may be another error factors such as mechanical elements and so on, it will become out of warranty, so care should be taken fully. Rated output value for load cell used in calculation should be the same value written in Inspection data. For example, we ll show the calibration procedures in the following condition, that is, 3 points of load cells with 3 mv/v of rated output and 5 t of rated capacity. Tare weight : 1.5 t Weighing capacity : 5 t Maximum display value : Calculate the output of load cell at the maximum display from the above conditions. (Output of load cell at maximum display. (Rated output)+(rated output)+(rated output) Numbers of load cell 3 mv/v + 3 mv/v + 3mV/V 3 points 1 mv/v 5t 3 points 5t (Weighing capacity) (Numbers of load cell)(rated capacity) 2 Execute the calibration with load cell section applied initial load(tare weight), according to the paragraph In this case, make input to in step 5, and in step 7 each. 29

46 (2) When loading condition and output condition for load cell are clear. (In case desired accuracy is more than 1/1 000 or so.) Warning The accuracy obtained by the calibration of this procedure, consists from combined accuracy with the instrument and combined strain gage applied transducer, the accuracy of weight used in the calibration, error factors on mechanical and also error factors on calibration works, that is total accuracy. If high accuracy is required, full consideration should be made on each factors. If neglected, there may be a case that desired accuracy shall not be obtained. When high accuracy is required, actual load calibration by the weight is needed. For example, we ll show the calibration procedures in the following condition, that is, 3 points of load cells with 3 mv/v of rated output and 5 t of rated capacity. Tare weight : 1.5 t Weighing capacity : 5 t Maximum display value : Calculate the output of load cell at the maximum display from the above conditions. (Output of load cell at maximum display. (Rated output)+(rated output)+(rated output) Numbers of load cell 3 mv/v + 3 mv/v + 3mV/V 5t 3 points 3 points 5t 1 mv/v (Weighing capacity) (Numbers of load cell)(rated capacity) 2 Execute the calibration with the load cell section applied initial load(tare weight), according to paragraph In this case, make input to in step 5, and in step 7 each. 3 Apply fine adjustment according to the paragraph At the same time, apply 5 t load as for the optional constant load. 30

47 (3) Loading condition is clear, but output condition for load cell is unclear. When existing load detective section is used and only the instrument of digital indicator is used newly, but the output of load cell is unclear, the calibration should be made after checking the output value of load cell. For example, if rated capacity is 5 t and the other factors are unknown, we ll show the procedures as follows: 1 According to the paragraph 7 15., set the instrument in Monitor mode. In this condition, output level for load cell inputted to the instrument can be monitored up to X.XXX with the unit of mv/v. 2 Record the display value on the load display after setting the load cell section with initial load applied(tare weight). This value is the output of load cell at the initial load application. 3 After applying 5 t load on load cell section, record the display value on the load display section. This value will be the output of load cell at the time of weighing capacity. 4 From the output of load cell at the time of initial load application recorded in the step and output of load cell at the time of weighing capacity application recorded in the step as well, output of load cell at maximum display can be calculated according to the below formula. (Output of load cell at maximum display) = (Output of load cell at weighing capacity)(output of load cell at initial load) 5 Close the Monitor mode in the instrument. 6 After setting the load cell section(tare weight) to initial load calibration, execute the calibration according to the paragraph At the same time, input each in step 5 and Output of load cell at maximum display calculated from 2 at step 7. 7 Make fine adjustment according to the paragraph On this occasion, apply 5 t load for the optional constant load. 31

48 In case of executing recalibration. When purchasing the instrument newly, and also executing combined inspection at our site, or executing fine adjustment on zero and span, make calibration with whichever method as follows: (1) Calculation on tare weight only. (Combined inspection has completed at our site and calibration on tare weight only is required.) Though calibration has completed, initial load(tare weight) has changed, or combined inspection has completed at our site and calibration on only initial load(tare weight) is required after installation, make calibration according to the following methods. 1 After setting the load cell with initial load(tare weight) application, execute the calibration. In this case, after displaying CCAL at step 2, press thekey only for every step. The display will change as follows and only the initial load(tare weight) can be calculated. CCAL D XX DISP XXXX SMV X.XXXX ZERO T END 0. Warning Never press the other key except key. If other than the key is pressed, the value of the calibration of the span may be changed. (2) In case of executing fine adjustment on zero and span. Make adjustment according to the paragraph Warning The accuracy obtained by the calibration of this procedure, consists from combined accuracy with the instrument and combined strain gage applied transducer, the accuracy of weight used in the calibration, error factors on mechanical and also error factors on calibration works, that is total accuracy. If high accuracy is required, full consideration should be made on each factors. If neglected, there may be a case that desired accuracy shall not be obtained. 32

49 6. Operating Procedures We ll show the operating procedures for the instrument with each key located on the front panel. Warning Operation with each key should be made after interrupting the measurement. If it is made during measurement, it may cause an unexpected malfunction. Key operation during Measurement mode can be effective by pressing for about 1 s or so. 6 1.key When pressed with another key together simultaneously in Measurement mode. By pressing with each key together, shift function for each key will be effective Pressed with the condition of available setting for comparator S1, S2, S3, and S4. When S1, S2, S3, and S4 are pressed with the condition of available setting, the target for set value to be set will change S1 S3 S3 S4 S1. In the operation of the paragraph , when the key is pressed for more than 2 s, each key operation will be executed continuously at a constant interval without the operation of ON/OFF key Single key is pressed in Measurement mode digit at set value of comparator S1 will flash, then setting for set value of comparator S1 will be possible. Moreover, if any key operation is not made during 20 s approximately, that is, untouched, the mode will be returned to the measurement mode automatically. By pressing thekey, changed set value will be registered internally, the condition of available setting for S1 can be closed When pressed with thekey together in Measurement mode. At the same time, when tare cancellation (A/Z) function will activate and load display value becomes net weight display value, A/Z on status display will be When operated in fine adjustment mode for Zero and Span. Down operation of coarse adjustment for ZERO and SPAN can be made. 33