User Manual 3-Channel Pressure Datalogger Model SD750

Transcription

1 User Manual 3-Channel Pressure Datalgger Mdel SD750 Additinal User Manual Translatins available at

2 Intrductin Cngratulatins n yur purchase f the Extech SD750 Pressure Datalgger fr use with 2-wire pressure transducers (ptinally available). This meter displays and stres pressure measurement data ver time and stres the infrmatin n a SD card which can be dwnladed t a PC. This meter is shipped fully tested and calibrated and, with prper use, will prvide years f reliable service. Please visit ur website ( t check fr the latest versin f this User Guide, Prduct Updates, and Custmer Supprt. Features Mnitr Pressure Levels frm three separate surces Datalgger date/time stamps and stres readings n an SD card in Excel frmat fr easy transfer t a PC RS232 serial 16-bit utput stream Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 secnds and AUTO Lw pwer cnsumptin, lng battery life AC pwer adaptr (included) Fr use with 2-wire pressure transducers (ptinally available) 2

3 Meter Descriptin 1. LCD Display 2. Channel 1 Pressure Reading 3. Channel 2 Pressure Reading 4. Channel 3 Pressure Reading Display 5. Unit f measure fr all channels 6. Prtective cmpartment dr (side) 7. LOG (ENTER) buttn 8. SET buttn 9. dwn arrw buttn 10. (TIME) up arrw buttn 11. Channel 1 transducer input (4-20mA) 12. Channel 2 transducer input (4-20mA) 13. Channel 3 transducer input (4-20mA) Left side view (behind prtective dr) 14. AC pwer adaptr jack fr supplied adaptr 15. Reset buttn (press if display lcks) 16. RS bit data stream utput 17. SD memry card scket Nte: The battery cmpartment, tilt stand, and wall munt access hles, nt pictured, are lcated n the rear f the meter. 3

4 Getting Started Meter Pwer Ntes: The internal batteries (6 x 1.5V AAA) maintain the clck time/date accuracy. The AC adaptr pwers the unit fr all ther peratin. Time and Date is kept accurate even when the AC adaptr is discnnected as lng as fresh batteries are installed. Fr nrmal peratin, please install batteries AND cnnect the unit t an AC surce via the AC adaptr. The unit des nt have a pwer switch. Battery Warning, Installatin and Replacement 1. When the lw battery icn appears in the display, the batteries are weak and shuld be replaced as sn as pssible. 2. T replace r install batteries, remve the Philips head screw that secures the rear battery cver and lift ff the cver. 3. Replace the six (6) AAA batteries (use alkaline, heavy duty type), bserving plarity. 4. Replace and secure the cver. Never dispse f used batteries r rechargeable batteries in husehld waste. As cnsumers, users are legally required t take used batteries t apprpriate cllectin sites, the retail stre where the batteries were purchased, r wherever batteries are sld. Dispsal: D nt dispse f this instrument in husehld waste. The user is bligated t take end-f-life devices t a designated cllectin pint fr the dispsal f electrical and electrnic equipment. Other Battery Safety Reminders Never dispse f batteries in a fire. Batteries may explde r leak. Never mix battery types. Always install new batteries f the same type. 4

5 Munting and Wiring The SD750 can be placed n a tabletp using the supplied tilt stand, it can be wall munted using the rear munting access hles, r it can be laid flat n a desktp r ther surface. Up t three 4-20mADC pressure transducers (tw-wire) can be cnnected t the bttm f the SD750 as shwn in the diagram belw. Wiring fr 2-wire transmitters must be cnfigured exactly as shwn in the diagram. Only the tw terminals n the right fr each channel grup are t be used. The tw terminals n the left fr each channel grup are unused. Signal psitive (S+) and Pwer psitive (V+) are cnnected t the same terminal as shwn in the diagram belw. Signal negative (S ) and Pwer negative (V-) are cnnected t the same terminal as shwn belw. 5

6 Set Mde Befre taking measurements and datalgging, the SD750 must be cnfigured t match the applicatin and transducers in questin. The SET mde is used t accmplish the fllwing: Frmat a SD memry card Set the clck date and time Set the sampling time (datalgging capture rate) Set the beeper sund ON/OFF Set the meter t use a decimal (US) r a cmma (EU) fr readings stred n the SD card Set the RS232 data utput stream ON/OFF Set CH1, CH2, and CH3 pressure sensr parameters t match the transducer(s) being used Set the Pressure unit f measure (all channels use the same unit f measure) Nte: The datalgger functin must be switched OFF befre attempting t enter SET mde. SET MODE MENU T enter the SET mde, press and hld the SET buttn fr > 2 secnds, and then release. SET will flash quickly n the display and the symbl fr the first Menu item Sd F (frmat SD card) will appear. Fllw the steps belw t navigate the menu tree and t make and save changes t parameter settings. Nte: In the SET mde, if n buttn is pressed within 5 secnds, the lgger will exit the SET mde and return t the standard mde f peratin. 1. Sd F: Frmat the SD card Use the buttn t select yes r n. T frmat (and cmpletely erase) an SD card select yes and then press Enter. The frmatting prcess will begin. T skip this step withut frmatting the card, select n and then press SET t advance t the next parameter. 2. date: Set the date and time Use the r buttns t adjust the Year/Mnth/Day/Hur/Minutes/Secnds. Use the Enter buttn t stre and t step thrugh the available fields. When dne, Press SET t stre the settings and t advance t the next parameter. 3. SP-t: Set the sample time (datalgging capture rate) Use the buttn t select the desired sample rate. The ptins are: 5, 10, 30, 60, 120, 300, 600 secnds and AUTO. In AUTO, a reading will be stred nly when there is a value change f ±10 digits. Press ENTER t stre the setting and t advance. 6

7 4. beep: Set the beeper ON r OFF Use the buttn t select ON r OFF and then press Enter t stre the setting and t advance. 5. dec: Set the SD card decimal character Use the buttn t select USA (fr decimal pint usage) r Eur (fr cmma usage) and press ENTER t stre the setting and t advance. 6. rs232: Set the RS232 data utput stream ON/OFF Use the buttn t select ON r OFF and then press ENTER t stre the selectin and t advance. Fr streaming f data t a PC via the RS232 Output jack, the ptinal USB kit (RS232 t USB cable and driver CD) is available. Cntact Extech fr the RS232 prtcl. 7. type CH1: Set Channel 1 Pressure Sensr range The selected range must match the range fr a given transducer. Use the buttn t select 2, 5, 10, 20, 50, 100, 200, r 400 bar and then press ENTER t stre the setting and t advance. 8. type CH2: Set Channel 2 Pressure Sensr type (same prcedure as fr Channel 1 abve) 9. type CH3: Set Channel 3 Pressure Sensr type (same prcedure as fr Channels 1 and 2) 10. unit: Set the unit f measure fr all channels Use the buttn t select a unit f measure. All channels share the same unit f measure. The ptins are BAR, PSI, kg/cm 2, mm HG, in HG, m H 2 O, in H 2 0, ATP (atmspheres), and kpa. 11. ESC: Exit the setting mde. Press the SET buttn t return t nrmal peratin. System RESET If the CPU des nt respnd t keystrkes, r the meter display seems frzen, press the recessed RESET buttn n the left side f the datalgger behind the prtective dr t return the meter t a wrking state (insert a paper clip r similar pinted bject t press the RESET buttn). RS-232/USB PC Interface Fr streaming f data t a PC via the RS232 Output jack, the ptinal USB kit (RS232 t USB cable and driver CD) is available. Cntact Extech fr the RS232 prtcl. 7

8 Measurements When the meter is prperly pwered, munted, cnfigured, and wired t the transducers as described earlier, the meter can begin t be used t accurately display pressure readings. The meter s LCD shws the Channel 1 input reading n the tp, the Channel 2 reading in the center, and the Channel 3 reading n the bttm as shwn belw. If the x100 indicatr is flashing n the display, multiply the displayed reading by a factr f 100 t btain the crrect reading. The unit f measure shwn t the right f the Channel 2 reading applies t all channels. Select the unit f measure as described in the SET MODE sectin. 8

9 Datalgging 1. Open the left side dr and insert an SD card SD Cnsideratins: The SD card shuld be at least 1GB in capacity. 4GB is the maximum size recmmended, althugh a card f up t 16GB can be accmmdated. D nt use memry cards frmatted by ther meters r cameras. Use the SD card frmatting prcedure included in the SET MODE sectin f this manual. If a SD memry card is nt installed, an errr message will appear in the display. Displayed errr messages: CH- CArd The memry card is full r there is a prblem with the card LbAt N CArd The battery is lw and datalgging is disabled The SD card is nt inserted 2. Prgram the meter as described in the SETUP MODE sectin f this guide. 3. Press the LOGGER buttn fr >2 secnds t begin lgging. DATALOGGER will appear in the display and the meter will beep each time data is recrded (if beeper is enabled in SET mde). 4. T stp datalgging, press the LOGGER buttn fr > 2 secnds. DATALOGGER will change t DATA and the meter will cunt dwn thrugh the recrded data list reading by reading. Imprtant Nte: Never remve the SD memry card while the datalgger is running. SD Card Data Structure 1. When the SD card is first inserted int the datalgger the flder PSB01 is created n the card. 2. The first datalgging sessin will then create a file PSB xls. All data will be saved t this file until the number f clumns reaches 30, After 30,000 clumns, a new file (PSB01002.xls) is created. This is repeated every 30,000 clumns until PSB01099.xls. At this pint a new flder, PSB02 is created and the prcess is repeated; PSB10 is the final flder. 9

10 Transferring Data t a PC 1. Remve the memry card frm the datalgger and plug it int the SD card slt n the PC. Fr PCs that d nt include an SD card reader, external SD card readers are generally available and can be cnnected t the PC s USB jack. 2. Launch Excel and pen the data file n the memry card frm within the spreadsheet prgram. The file will appear similar t the ne shwn belw. Quick Check the Time, Date, and Sample Rate Settings Press and Hld the TIME buttn fr > 2 secnds and the display will autmatically cycle thrugh the date, time and sample rate infrmatin. T edit these settings please refer t the SET mde sectin f this guide. 10

11 Specificatins Meter Specificatins Display Measurements Input signals Accuracy Memry Card 60 x 50 mm (2.4 x 2.0 ) LCD Pressure frm up t 3 tw-wire pressure transducers Linear 4-20 ma DC prcess signal ± (0.5% + 2 digits) f reading (meter nly, des nt include transducer errr) SD memry card, 1 GB t 16 GB (4 GB maximum recmmended) Datalgger Sampling Rate 5/10/30/60/120/300/600 secnds r Autmatic Datalgger errrs Temp. Cmpensatin Display update rate Data Output Operating Temperature Operating Humidity Pwer Supplies Weight 0.1% maximum fr ttal saved data (typical) Autmatic Apprx. 1 secnd RS 232 Serial Interface; 16-bit data stream via 3.5mm jack 0 t 50 C (32 t 122 F) Less than 85% RH Six (6) AAA Alkaline, heavy duty 1.5 V batteries and 9V AC adaptr. Bth methds must be used fr prper peratin. Batteries maintain time and date (even when the AC adaptr is discnnected) AC adaptr pwer all ther functins 199 g (0.44 lbs.) Dimensins 132 x 80 x 32mm (5.2 x 3.1 x 1.3 ) Optinal Accessries 2-wire transducers, USB cable 11

12 Optinal Transducer Specificatins Sensr type PT30-SD PT150-SD PT300-SD Max. Max. Max. Range Reslutin Range Reslutin Range Reslutin bar Psi Kg/cm mm Hg inch Hg meter H inch H Atmsphere kpa Transducer utput Accuracy PT30-SD: ± 1% f F.S. PT150-SD: ± 1% f F.S. PT300-SD: ± 1% f F.S. Frm 10 t 40 C (50 t 104 F) includes linearity, hysteresis & repeatability Overlad prtectin Transducer Supply vltage Transducer Output Sensr element Diaphragm Thread Operating Temperature Operating Humidity 150% f max capacity 9 t 30 VDC 4 t 20 ma DC Ceramic cell ¼ PS, 19 teeth per inch 0 C t 40 C (32 F t 140 F) Max 80% RH Size 34 mm diameter x 134 mm (1.3 diameter x 5.3 ) Weight 240g (8.5z.) Cable length 1m (39 ) Cpyright FLIR Systems, Inc. All rights reserved including the right f reprductin in whle r in part in any frm ISO-9001 Certified 12