MANUAL NO. 29340E1.8 Published in Aug.1993 Revised in Aug.2012 MODEL CA-72 SERIES ACCELERATION TRANSDUCER INSTRUCTION MANUAL
FOREWORD CA-72 For Use in Safety... Thank you for your using our CA-72 Series Piezoelectric Velocity Transducer. SHINKAWA Sensor Technology applies strict quality control and inspections to ensure the high reliability of its products. This 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. (This manual is applied to Model CA-721, -722 version.)! CAUTION 1. Do not drop the transducer and otherwise mishandle. 2. Be sure to install the transducer at environmental (case) temperature within -50 to +120 C. 3. Field wiring should be performed correctly by reading this manual. 4. Install the transducer at the place where is most sensitive for vibration. the mounting surface must be clean, smooth, flat, and large enough to accommodate the entire base of transducer. 5. Use the specified connector and cable in the specifications. Keep cabling away from power and control lines to prevent noise interference. 6. Do not measure insulation resistance and dielectric strength other than those at places specified. If measured, transducer damage may result. 7. Do not remodel this unit without permission. Otherwise the guarantee can not be made. 8. This unit is designed for use by specialists or persons thoroughly familiar with the field. 9. 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. Follow closely all instructions written in the manual. i
CONTENTS CA-72 1. GENERAL INFORMATION 1-1 GENERAL -------------------------------------------------------------------------------------- 1 1-2 SYSTEM CONFIGURATION EXAMPLE ----------------------------------------------- 1 2. SPECIFICATIONS 2 SPECIFICATIONS ---------------------------------------------------------------------------- 2 3. RECEIVING INSPECTION AND STORING 3-1 RECEIVING INSPECTION ----------------------------------------------------------------- 4 3-2 STORING CONSIDERATIONS ----------------------------------------------------------- 4 4. INSTALLATION 4-1 GENERAL -------------------------------------------------------------------------------------- 5 4-2 INSTALLATION PROCEDURE ----------------------------------------------------------- 5 4-3 CONNECTOR CONNECTION PROCEDURE ---------------------------------------- 6 4-4 CABLE ------------------------------------------------------------------------------------------- 7 5. WIRING DIAGRAM 5-1 WIRING PROCEDURE --------------------------------------------------------------------- 8 5-2 WIRING DIAGURAM FOR MODELI VM11B SIGNAL CONDITIONER -------- 9 6. MAINTENANCE 6-1 MAINTENANCE 10 ii
1. GENERAL INFORMATION CA-72 1-1 GENERAL The Model CA-72 Sereis Acceleration Transducer satisfies most machinery monitoring analysis acceleration requirements. Its rugged design, hermetically sealed stainless steel case, excellent frequency response, and exceptional resistance to industrial noise makes it an ideal choice for permanent monitorring and machinery analysis. Excellent base strain and thermal transient stability is achieved through proprietary mechanical and thermal isolation techniques. 1-2 SYSTEM CONFIGURATION EXAMPLE Monitoring Dvice CW Cable Recorder Output Signal Waveform Analyzing +24V power VM-11B Vibration Signal conditioner Alarm Output CA-72 Serise Piezoelectric Acceleration Transducer Machine Case -1-
2. SPECIFICATIONS CA-72 CA-721 CA-722 Connector type With integral cabling type*1 (with 2-conductor shielded cable 3m standard) (connection cable for CA-721) CW- E-EF- 0- MODEL CODE Cable length Lug type*2 Armor 050 5m 650 65m R Ring type 0 Without 100 10m 700 70m Y Spade type 1 With*3 150 15m 750 75m 200 20m 800 80m 250 25m 850 85m 300 30m 900 90m 350 35m 950 95m 400 40m 101 100m 450 45m 151 150m 500 50m 201 200m 550 55m 600 60m Note) *1 Cable length 3m (end cut off), CW cable not required. *2 M3 crimping terminals at the cable ends are standard. *3 With armor : Cable length 50m SPECIFICATIONS Sensitivity Acceleration Range Vibration Limit Shock Limit Linearity Natural Frequency Frequency Response 100mV/9.8m/s 2 (100mV/g REF.)pk ± 5% at 100Hz, 25 C (77 F REF.) 490m/s 2 (50g REF.)pk 4,900m/s 2 (500g REF.)pk 49,000m/s 2 (5,000g REF.)pk ±1% of F.S. 26kHz 3 to 5,000Hz, ±5%, 2 to 7,000Hz, 10%, 1 to 15,000Hz, ±3dB Transvers Sensitivity Max. 5% Output Impedance Power supply Grounding Temperature Response Power Requirement Operating Temperature Range Relative Humidity Weight Accessories Supplied Cabling Recommended Cable Shielded Specifications 100 (typ.) 18 to 30VDC, 2 to 10mA (constant current) Case isolated, internally shielded ±10% (around the operating temperature range) 18 to 30VDC, 2 to 10mADC (constant current) -50 to +120 C (-15 to +248 F REF.) 100%RH Approx. 110g M6 mounting stud CA-721 : Twisted pair shield cable CA-722 : 2-conductor shielded cable (intergral cabling type) AWG No.20(approx.0.52mm 2 ) Twisted pair shielded cable -2-39350E2.7
2. SPECIFICATIONS CA-72 Connector type CA-721 2-pin connector (62) Hex. 24 CW- E-EF- 0- (53) L±10% (4) (φ25.4) M6 1 (mounting stud) With integral cable type CA-722 L±10% (105) Hex. 24 (φ25.4) (4) M6 1 (mounting stud) Dimension : mm -3-
3. RECEIVING INSPECTION AND STORING CA-72 3-1 RECEIVING INSPECTION Visually inspect the transducer for obvious shipping damage. If shippng damage is apparent, file a claim with the carrier and submit a copy to Shinkawa Electric Co.,LTD. 3-2 STORING CONSIDERATIONS If storing is required temporarily, observe the following notes. (1) Store the transducers in the shipping box. (2) Do not store in the following places. a) with extreme temperature. b) with much moisture. c) with magnetic field. d) with shock or vibration. e) with corrosive materials. f) with water or dust. -4-
4. INSTALLATION CA-72 4-1 GENERAL Model CA-72 can be mounted to the measured point by using attached mounting stud.! CAUTION The mounting surface must be clean, smooth, flat, and large enough to accommodate the entire base of the transducer. 4.2 INSTALLATION PROCEDURE Mount the CA-72 transducer by performing the following steps. (1) Drill and tap the mounting hole (M6, 7mm deep min.) perpendicular (90 ±1 ) to the mounting surface. (2) Clean the mounting surface. Dirt, dust, paint and oils must be wiped out from the mounting surface. Ensure the mounting hole is free off foreign material and the threads are clean. (3) Install the mounting stud into the transducer base and finger tighten until snug. (4) Apply some silicon grease to the mounting surface. (5) Install the transducer into tapped mounting hole and tighten the transducer with a torque wrench until snug. The transducer is torqued to about 320N cm(33kg cm REF.).! CAUTION 1. Do not over-torque. Excessive torque can result in degraded performance, internal damage and inaccurate readings. 2. We can provide any type stud, so check stud size before installarion. Surface texture on greater than 8µm >1.1 sensor dia. 1 A 0.025 A 7mm 9mm or more or more Stud Mounting : Surface Preparation -5-
4. INSTALLATION CA-72 4-3 CONNECTOR CONNECTION PROCEDURE Connect connector by performing the following steps for Model CA-722 connector type version. (1) Securely connect the connector of the cable to the connector receptacle of the transducer. (2) To prevent loosening of the connector due to vibration, secure the connector with stainless wire as shown below. Lock wire hole Stainless wire Lock wire hole Connector! CAUTION 1. If used in the place with much moisture, encapsulate the connector with silicon compound that does not have an acetic base. 2. The connector is not watertight. If used in outdoor environment, the connector should be covered with adequate protective tube. In this case, care should be taken not to enter water into connector. 3. Be ware not to apply the excessive force to the connector, which may cause the damage. -6-
4. INSTALLATION CA-72 4-4 CABLE Observe the following notes for cabling. (1) Use the CW standard cable for connection with the CA-722 connector type version. Use the twisted pair, shielded cable (AWG No.20) for connection between the junction terminal and monitoring device. Select suitable cable for operating environments. (2) The cable should not exceed 300 meters. Excessive length may limit the systems frequency response. (3) Keep cabling away from power and control lines, to prevent noise interference. (4) Cable should be securely fixed. Prevent the cable from bending sharply, twisting, kinking, knotting, and straining. The recommended minimum bend radius is 80mm. SHINKAWA recommends that the cable should be routed, through conduit to prevent physical damage and noise interference.! CAUTION Be ware not to apply the excessive force to the connector cable, which may cause the damage. -7-
5. WIRING DIAGRAM CA-72 5-1 WIRING PROCEDURE The CA-72 requires an external DC power source to operate. Proper operation can be obtained by applying a DC voltage to the appropriate lead of transducer through a current regulating (CR) diode, as shown below.! CAUTION 1. Never omit the current regulating diode. 2. If the transducer is connected to the monitoring device (e.g. vibration monitor) that can supply DC power output to the transducer, refer to the instruction of the monitoring device. May be provided as part of monitoring device. Power +18 to +30VDC (Recommended+24VDC) Power, signal CR diode 2 to 10mA Signal output 0V(return) 0V(return) CA-72 Typical wiring (See caution 2 below.) e.g. Motorola 1N5312 B+ B+ (power side) (power side) Power, signal 0V IN COM or CA-72 Monitor Diode connection (Bottom view) Power, signal 0V IN COM CA-72 Monitor! WARNING Beware of electric shock from high-voltage parts.! CAUTION A blocking capacitor ( 10μF) is required in series with the output signal if the readout instrument is DC coupled. -8-
5. WIRING DIAGRAM CA-72 5-2 WIRING DIAGURAM FOR MODELI VM11B SIGNAL CONDITIONER Junction Terminal CW-050E Cable (Except Model CA-722) A B 1 2 3 5 6 7 8 CA-72 Machine Case 9 10 11 12 13 14 15 16 VM-11B SIGNAL CONDITIONER Signal Wire name & Color Terminal Name & No. Signal & Power A(White) IN(7) 0V B(Black) COM(8)! WARNING Beware of electric shock from high-voltage parts.! CAUTION Use the twisted pair, shielded cable (AWG No.20) for connection between the junction terminal and monitoring device. The cable should not exceed 300 meters. Keep cabling away from power and control lines, to prevent noise interference. -9-
6. MAINTENANCE CA-72 6-1 MAINTENANCE The following items should be periodically checked to operate the system satisfactory. 1) Check the transducer body is properly mounted and secured. 2) Check there is no contact fault and water entered at connector. 3) Check the cable is connected securely to monitoring device. 4) Check the cable is in good condition. -10-
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 a Shinkawa engineer needs to be dispatched for repair purposes during the warranty period, the cost of the repairs will be borne by Shinkawa Electric ; however, the travel expenses shall be charged in accordance with our policies. 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 than 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.
Hiroshima Factory 4-22 Yoshikawa-kogyodanchi, Higashi-hiroshima 739-0153, Japan Tel. +81-82-429-1118 Fax. +81-82-429-0804 [Field support & Repair Dept] E-Mail : service@sst.shinkawa.co.jp