Model VZ-35A( ) INSTRUCTION MANUAL

Transcription

1 MANUAL NO E2.2 Published in Feb.1988 Revised in Apr Model VZ-35A( ) Calibration Kit INSTRUCTION MANUAL

2 FOREWORD VZ-35A ( ) For Use in Safety... Thank you for your using our VZ-35A( ) Calibration Kit. SHINKAWA Sensor Technology applies strict quality control and inspections to ensure the high reliability of its products. The Calibiration Kit Instruction Manual contains descriptive information, specifications, principle of operation, installation procedures and field wiring with monitor. Please study contents of this manual and related manuals thoroughly before installing or operating the equipment, and keep it handy for future reference.! CAUTION 1. This unit is designed for use by specialists or persons thoroughly familiar with the field. 2. Make sure that the end user receives the Instruction Manual delivered with this unit. Before Use... When the unit is received, inspect it for damage suffered in transport and check whether it is the item you ordered. In the unlikely event that it was damaged in transport or does not function according to specifications, please contact the SHINKAWA Office or dealer nearest you. Store the unit under the ambient conditions given in the specification. Avoid places where it is exposed to high humidity or corrosive gases. i

3 TABLE OF CONTENTS VZ-35A ( ) 1. GENERAL 1 2. SPECIFICATIONS 2 3. DESCRIPTION OF EACH SECTION 3-1 LAYOUT DRAWING DESCRIPTION OF EACH SECTION 4 4. CALIBRATION 4-1 LAYOUT DRAWING BLOCK DIAGRAM STATIC CHARACTERISTIC CHECK OF RIVERNEW VK VIBRATION TRANSDUCER VIBRATION CALIBRATION THRUST CALIBRATION INSTALLATION OF PHASE MARKER 5-1 INSTALLATION OF PHASE MARKER SENSOR 11 ii

4 1. GENERAL VZ-35A ( ) The model VZ-35A( ) calibration kit is a device to mechanically generate standard vibration and displacement necessary for calibration of RIVERNEW VK Vibration Monitoring System. The kit consists of two basic units: one has The functions of static characteristic check of RIVERNEW VK type vibration transducers and of thrust monitor calibration, while the other has the functione of dynamic characteristic check of RIVERNEW VK vibration transducers by a built-in rotary plate (WOBBLE plate) to generate accurate vibraion and of vibration monitor calibration. A Phase marker can also be installed on this device. -1-

5 2. SPECIFICATIONS VZ-35A ( ) GENERAL Model VZ-35A Calibration Kit is a calibration device that provides the mechanical reference vibration and displacement inputs for RIVERNEW monitoring system. This kit consists of two basic units. (1) Static characteristic check for Model VK series transducer and calibration function for thrust monitor by spindle micrometer. (2) Dynamic characteristic check for Model VK series transducer and calibration function for vibration monitor by motor-driven wobble plate. Additionally, a phase marker sensor can be installed to this kit. SPECIFICATIONS Model Code No. Power Supply Micrometer Range Wobble Plate Calibration Range Target Material Enclosure Box Model VZ-35A 115V/95 to 130VAC, 50/60Hz 230V/190 to 250VAC, 50/60Hz 0 to 25,000µm 0 to 300µm pk-pk 0 to 5,000rpm±1,000rpm JIS SCM440 Portable type FRP case Dimensions Width Depth Heigh Approx. 366mm Approx. 200mm Approx. 228mm Mass Approx.6.5kg Accessories Dial indicator Fuse (1A) Sensor Adaptor 1/4-28UNF M8 3/8-24UNF M10 M12 1 piece 1 piece 10 pieces 2 pieces 2 pieces 2 pieces 2 pieces 2 pieces E1.4

6 3. DESCRIPTION OF EACH SECTION VZ-35A ( ) 3-1 LAYOUT DRAWING CAUTION Wobble plate high-speed rotates. Please do not touch while rotating. 1 Thrust sensor holder 8 Power supply switch 2 Spindle micrometer 9 Voltage select switch 3 Target for static characteristic check 10 Fuse holder 4 Wobble plate 11 Dial indicator 5 Slide arm 12 Sensor adapter 6 Phase marker sensor holder 13 Power Supply Cable 7 Speed controller -3-

7 3. DESCRIPTION OF EACH SECTION VZ-35A ( ) 3-2 DESCRIPTION OF EACH SECTION 1 Thrust sensor holder: Fix a sensor with sensor adapter 12 2 Spindle micrometer: Measuring range ; 0 to 25,000µm Minimum reading ; 10µm 3 Target for static characteristic check: This is moved by the spindle micrometer. In addition to the standard target material of JIS SCM440,other target materials such as copper, aluminium,brass, titanium, etc. are available. However, accuracy guarantee of measuring is limited when the material of a subject is SCM WOBBLE plate: This is a disc with slight inclination and made of the same mateial as that of the target for static characteristic check. This is driven by electric motor to obtain vibration with accurate amplitude. CAUTION Please do not touch while rotating 5 Side arm: The sensor can be moved with a dial indicator attached. 6 Phase marker sensor holder: Fix a phase marker sensor using a sensor adaptor Speed controller: Turning to the right increases rotating speed of the WOBBLE plate. 8 Power supply switch: Thie is a power supply switch. 9 Voltage select switch: This switch selects either one of 115VAC or 230VAC. Select the voltage with a scerwdriver. 10 Fuse holder: A fuse with a capacity of 0.5A is used. -4-

8 3. DESCRIPTION OF EACH SECTION VZ-35A ( ) 11 Dial indicator: Measures WOBBLE plate amplitude. Measuring range ; 5,000µm Minimum reading ; 1µm Scale ; 0 to 100 to 0 12 Sensor Adapters: Two adapters for each sensor suitable for its thread size are available. -5-

9 4. CALIBRATION VZ-35A ( ) 4-1 BLOCK DIAGRAM Vibration Sensor Phase Marker Sensor Wobble plate Target Thrust Sensor To Vibration Monitor Spindle Micrometer Moving To Thrust Monitor VK Driver COM -24V OUT VK Driver COM -24V OUT VK Driver COM -24V OUT -24V Power Supply COM COM DMM IN COM Oscilloscope IN CH1 CH2 Fig

10 4. CALIBRATION VZ-35A ( ) 4-2 STATIC CHARACTERISTIC CHECK OF RIVERNEW VK VIBRATION TRANSDUCER (1) Fix a sensor on the holder using an adapter suitable for sensor thread size. (2) Set spindle micrometer scale to zero. (3) Position the sensor into the spindle micrometer so that the sensor tip lightly contacts the target. (To position the sensor into the spindle micrometer, adjust holder position or loosen the screw located at the slide arm and move the target.) Secure the sensor in position. Fix the holder and micrometer mounting screws so that the sensor tip and the target are in parallel. (4) Connect the calibration kit as shown Fig (5) Connect the sensor with a VW extension cable and VK driver. (6) Connect the -24V terminal on the VK driver with the power supply minus output and the COM terminal on the VK driver with the power supply COMMON, respectively. (7) Connect a digital multimeter (hereinafter called DMM) with OUT and COM on the VK driver as shown in Fig (8) Supply power to the VK driver. (9) Adjust the spindle micrometer 250 more µ m away from the sensor face. The DMM should indicate 2 volts more for a 200mV/25µm calibration scale factor. -7-

11 4. CALIBRATION VZ-35A ( ) (10) Thus, a static characteristic curve can be drawn. Graduate the axis of ordinates by dividing it into 2V/cm. Also graduate the axis of abscissas by dividing it into 100µm/cm. Set the zero position of sensor set gap so that it may correspond to the zero position on the curve. Turn the spindle micrometer and gradually widen sensor set gap. Then, draw a voltage change curve until the voltage change will exceed the sensor measuring range. The voltage change curve up to about 100 to 200µm does not become perfectly linear. An obvious gradient change may start from the neighbourhood of 150µm. This starting point may slightly differ depending on a sensor and a driver to be calibrated and a target material to be used. The linear range is assured up to 2,000µm (target material: JIS SCM440). Draw The curve until it may deviate from the linear range. Store The perfectly calibrated curve for future reference. (11) In accordance with the procedures described above, the Statie characteristic of a RIVERNEW VK vibration transducer in the specific connection loop has been checkd. For a target with a different material, re-check of the RLVERNEW VK vibration transducer is required. -8-

12 4. CALIBRATION VZ-35A ( ) 4-3 VIBRATION CALIBRATION The WOBBLE calibration unit is a device to generate accurate standard vibration necessary for calibration of vibration monitors and for dynamic characteristic check of RIVERNEW VK vibration transducers. Perform setting of vibration calibration in accordance with the following procedures: (Refer to Fig. 4-1 for device connection.) CAUTION To prevent damage to the dial indicator, do not turn on the monitor switch while the dial indicator is mounted in the slide arm. (1) Install the dial indicator on the slide arm using an adapter for M8. (2) Manuallty rotate the WABBLE plate and then move the slide arm until the dial indicator indicates a appropriate peak-to-peak vibration range. (amplitude of an equipment actually measured). Rotating the spindle micrometer moves the slide arm. For the appropriate peak-to-peak vibration range, refer to technical manual of an equipment measured. (3) Check the slide arm position for every 10µm just before and behind the appropriate peak-to-peak vibration range by the micrometer scale. (4) Remove the dial indicator and install a sensor. Pay attention so that slide arm position may not change at this time. (5) Determine the sensor set gap from the set gap voltage measured by the vibration monitor or from the curve drawn in Item 4-2 afrer voltage measurement by DMM. When the monitor is used, refer to the instruction manual of each monitor. -9-

13 4. CALIBRATION VZ-35A ( ) (6) Check that the power supply switch on this calibration kit is turned off. Select the voltage by the voltage select switch. Check that the speed controller is off. Connect a power supply cable. Set the speed controller to the MIN. position and then gradually turn it to a clockwise (right turn) direction. The WOBBLE plate starts rotating. CAUTION To avoid circuit damage, connect the power supply after checking that the voltage select switch is in the position of either 115V or 230V. (7) Check that monitor indicator scale matches with dial indicator scale. If not, adjust monitor gain (Refer to Instruction Manual of each monitor). 4-4 THRUST CALIBRATION (1) Install a sensor in accordance with the same procedures as those in 4-2. (Refer to Fig.4-1 for device connection.) (2) Set the appropriate set gap to ZERO (set gap of the sensor installed on an equipment actually measured) and then check that the thrust direction from ZERO matches with the thrust direction polarity of thrust monitor.(for the thrust direction polarity, refer to the specifications for thrust monitor.) (3) Check that monitor indicator scale matches with spindle micrometor scale. If not, adjust monitor gain. (Refer to Instruction Manual for thrust monitor.) -10-

14 5. INSTALLATION OF PHASE MARKER VZ-35A ( ) 5-1 INSTALLATION OF PHASE MARKER SENSOR (1) Connect the devices as shown in Fig.4-1. (2) Install the phase marker sensor on the holder with a sensor adapter. (3) Turn on the power supply switch on the calibration kit to rotate the WOBBLE plate. (4) Adjust sensor set gap while watching a waveform on oscilloscope so that suitable pulse signal may be output. Firmly install the sensor. -11-

15 Warranty The warranty period for the delivered product shall be 3 years from the date of delivery from our factory. But the warranty period for the special order product and software shall be 1 year, and for the repairing parts shall be 6 months. In the event that the delivered product develops any defects within the warranty period for which Shinkawa Electric is liable, the defective part will be replaced or repaired in our factory at our own expense. In the event that an engineer needs to be dispatched for repair purposes during the warranty period, travel expenses for the said engineer will be changed in accordance with the above item. The cost of repair will be borne by Shinkawa Electric. However, the following are excluded from our warranty: (1) Any defects due to improper handling or operation by the user. (2) Any defects, the case of which is not attributable to Shinkawa Electric. (3) Any modifications or repairs made by others then Shinkawa Electric or persons commissioned by Shinkawa Electric. (4) Any handling, storage and operation under severe environmental conditions that exceed the design specifications. (5) Any defects due to fire, flood, earthquake, lightning and other Acts of God. (6) The consumables (7) Other defects considered not to be attributable to Shinkawa Electric. This warranty applies exclusively to the delivered product units. Shinkawa Electric will not be held liable for consequential damage caused either directly or indirectly through a defect of the delivered product. The warranty period and scope of machinery and equipment made by manufacturers other than Shinkawa Electric shall be in accordance with the conditions of the respective manufacturer, regardless of the provisions made above.

16 Hiroshima Factory 4-22 Yoshikawa-kogyodanchi, Higashi-hiroshima , Japan Tel Fax [Field support & Repair Dept] service@sst.shinkawa.co.jp