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29

3.4 Connecting Alarm Output

The terminal blocks use M3.0 screws (at a tighten-
ing torque of 0.5 N•m). 
We recommend that you use a round crimp con-
nector (RAV 1.25-3) for connection.
Open collector output (Rating: 30 VDC, 20 mA
max.)

3.4 Connecting Alarm Output

Design the wiring to prevent short-circuiting

of the ALARM and CLAMP SENSOR INPUT

terminals, thus avoiding electric shock and

accidents due to short-circuiting.

• The ALARM terminals are electrically insulated

from the U INPUT terminals and CLAMP
SENSOR INPUT terminals.

• To avoid the effects of external noise, design the

wiring so that cables connected to the ALARM
terminals are separated from those for
measurement, as well as cables connected to
the CLAMP SENSOR INPUT terminals and
voltage cables.

Summary of Contents for 2331-20

Page 1: ...INSTRUCTION MANUAL POWER METER 2331 20 MODULE ...

Page 2: ......

Page 3: ... 19 1 4 Dimension Diagrams 21 Chapter 2 Settings 23 2 1 Setting the Module ID 23 Chapter 3 Preparations 25 3 1 Installing the Module 25 3 1 1 Installing the Module Base 25 3 1 2 Mounting a Module on the Module Base 25 3 2 Connecting the Clamp Sensor to Module 26 3 3 Connecting the Voltage Cable to the Module 28 3 4 Connecting Alarm Output 29 3 5 Connecting to the Measured Line 30 ...

Page 4: ...ating 37 4 1 2 Target of Alarm Monitoring 38 4 2 Insulation of Internal Circuit 39 Chapter 5 Specifications 41 5 1 Basic Specifications 41 5 2 Function Specifications 46 5 3 General Specifications 48 Chapter 6 Maintenance and Service 51 6 1 Cleaning 51 6 2 Service 51 ...

Page 5: ... occurred during shipping In particular check the panel switches and connectors If damage is evident or if it fails to operate according to the specifications contact your dealer or Hioki representative Accessories Instruction manual 1 Options 9695 02 CLAMP ON SENSOR 50 Arms 9695 03 CLAMP ON SENSOR 100 Arms 9661 01 CLAMP ON SENSOR 500 Arms 9765 CLAMP ON SENSOR 5 Arms See When using Model 9765 p 10...

Page 6: ...t in injury or death as well as damage to the instrument Be certain that you understand the instructions and precautions in the manual before use We disclaim any responsibility for accidents or injuries not resulting directly from instrument defects In the manual the symbol indicates particularly important information that the user should read before using the instrument The symbol printed on the ...

Page 7: ...tion presents a significant hazard that could result in serious injury or death to the user Indicates that incorrect operation presents a possibility of injury to the user or damage to the instrument Indicates advisory items related to performance or correct operation of the instrument Indicates the prohibited action Indicates the reference f s maximum display value or scale length The maximum dis...

Page 8: ...ribution panel and feeders from the distribution panel to outlets CAT IV The circuit from the service drop to the service entrance and to the power meter and primary overcurrent protection instrument distribution panel Higher numbered categories correspond to electrical environments with greater momentary energy So a measurement instrument designed for CAT III environments can endure greater momen...

Page 9: ...ult in personal injury or death The maximum rated voltage between input terminals and ground is 300 Vrms Attempting to measure voltages exceeding 300 Vrms with respect to ground could damage the instrument and result in personal injury Do not allow the instrument to get wet and do not take measurements with wet hands This may cause an electric shock Do not use the instrument where it may be expose...

Page 10: ...e the instrument where it could be exposed to direct sunlight high tem perature or humidity or condensation Under such conditions the instrument may be damaged and insulation may deteriorate so that it no longer meets specifications To avoid damage to the instrument protect it from physical shock when transporting and handling Be especially careful to avoid physical shock from dropping Do not obst...

Page 11: ...ach other Beware of electric shock and short circuiting The CLAMP SENSOR INPUT terminals are not insulated from the U INPUT terminals Beware of electric shock and short circuiting A qualified electrician shall perform the wiring to prevent electric shock Avoid live line electrical work to prevent electric shock module malfunction due to short circuiting or opening of the CT secondary side overheat...

Page 12: ... and malfunction Avoid using an unused terminal for relaying or any other purpose to prevent electric shock errors and malfunction Connect the module to a power source that matches the rating in order to prevent fire Ensure that the power supply input and output are correctly wired according to the wiring dia gram See Chapter 3 Preparations p 25 This will prevent fire malfunction and errors Use ca...

Page 13: ...rt on the mat ing surfaces of the clamp on sensor so keep the surfaces clean by gently wiping with a soft cloth If power supply noise poses a problem use of a noise filter is recommended Avoid stepping on or pinching cables which could damage the cable insulation Keep the cables well away from heat sources as bare conductors could be exposed if the insula tion melts When the power and signal lines...

Page 14: ...ly exposed Using the product in such conditions could cause an electric shock so contact your dealer or Hioki representative for repair To avoid short circuits and potentially life threatening hazards never attach the product to a circuit that operates at more than 30 VAC or over bare conductors This product should only be connected to the secondary side of a breaker so the breaker can prevent an ...

Page 15: ...y within an interval and frequency are also can be measured The 2331 20 is used with the power supply module communications module and module base Overview Chapter 1 1 1 Product Overview Number of measurement circuits 1P2W 1P3W 3P3W 3P4W 1 circuit Voltage input 100 V 70 to 130 VAC 200 V 140 to 260 VAC line Current Input Clamp sensor Conceptual image Do not use this module as a wattmeter or watt ho...

Page 16: ...gle phase line to a 3 phase 4 wire line The recording interval is selectable from 1 second to 60 minutes The maximum minimum and average measure ments during the recording interval can be recorded with sampling once a second The module has an alarm output terminal 1 2 Major Features ...

Page 17: ...5 sec 18 hours 8 hours 6 hours 10 sec 1 5 days 16 hours 12 5 hours 15 sec 2 days 1 day 19 hours 20 sec 3 days 1 day 1 day 30 sec 4 5 days 2 days 1 5 days 1 min 9 days 4 days 3 days 2 min 18 days 8 days 6 days 5 min 46 days 20 days 16 days 10 min 92 days 41 days 32 days 15 min 138 days 61 days 48 days 20 min 184 days 82 days 64 days 30 min 277 days 123 days 96 days 60 min 554 days 246 days 192 days...

Page 18: ... 5 hours 10 sec 1 day 12 hours 9 5 hours 15 sec 1 5 days 18 hours 14 hours 20 sec 2 days 1 day 19 hours 30 sec 3 5 days 1 5 days 1 day 1 min 7 days 3 days 2 days 2 min 14 days 6 days 4 5 days 5 min 36 days 15 days 11 days 10 min 73 days 30 days 23 days 15 min 110 days 46 days 35 days 20 min 147 days 61 days 47 days 30 min 221 days 92 days 71 days 60 min 443 days 184 days 143 days When the alarm lo...

Page 19: ...s 10 sec 1 day 9 5 hours 7 5 hours 15 sec 1 5 days 14 5 hours 11 hours 20 sec 2 days 19 5 hours 15 hours 30 sec 3 days 1 5 days 22 5 hours 1 min 6 days 2 days 1 5 days 2 min 12 days 4 days 3 5 days 5 min 30 days 12 days 9 days 10 min 61 days 24 days 18 days 15 min 92 days 36 days 28 days 20 min 123 days 49 days 37 days 30 min 184 days 73 days 56 days 60 min 369 days 147 days 113 days When the alar...

Page 20: ...s 10 sec 1 5 days 18 5 hours 14 5 hours 15 sec 2 5 days 1 day 22 hours 20 sec 3 5 days 1 5 days 1 day 30 sec 5 days 2 days 1 5 days 1 min 10 days 4 5 days 3 5 days 2 min 21 days 9 days 7 days 5 min 53 days 23 days 18 days 10 min 106 days 47 days 37 days 15 min 159 days 71 days 55 days 20 min 213 days 94 days 74 days 30 min 319 days 142 days 111 days 60 min 639 days 284 days 222 days When the alarm...

Page 21: ... hours 10 sec 1 day 14 hours 11 hours 15 sec 2 days 21 hours 16 5 hours 20 sec 2 5 days 1 day 22 hours 30 sec 4 days 1 5 days 1 day 1 min 8 days 3 5 days 2 5 days 2 min 17 days 7 days 5 days 5 min 42 days 17 days 13 days 10 min 85 days 35 days 27 days 15 min 127 days 53 days 41 days 20 min 170 days 71 days 55 days 30 min 255 days 106 days 82 days 60 min 511 days 213 days 165 days When the alarm lo...

Page 22: ...hours 10 sec 1 day 11 hours 8 5 hours 15 sec 1 5 days 17 hours 13 hours 20 sec 2 days 22 5 hours 17 5 hours 30 sec 3 5 days 1 day 1 day 1 min 7 days 2 5 days 2 days 2 min 14 days 5 days 4 days 5 min 35 days 14 days 10 days 10 min 71 days 28 days 21 days 15 min 106 days 42 days 32 days 20 min 142 days 56 days 43 days 30 min 213 days 85 days 65 days 60 min 426 days 170 days 131 days When the alarm l...

Page 23: ...9 1 3 Name and Function of the Parts 1 3 Name and Function of the Parts Front Back POWER LED CLAMP SENSOR U INPUT Module ID setting dial ALARM terminals INPUT terminals terminals U RANGE switch Mark area ...

Page 24: ...verable error occurred 2 Mark area Use this area to make a note of the object to measure or the module ID Use an ink pen since pencil lead may rub off CLAMP SENSOR INPUT terminals Connect the output of clamp sensors to these terminals for 3 channels U INPUT terminals Connect voltages to be measured to these terminals ALARM terminals Connect the alarm output cable to these terminals These terminals...

Page 25: ...21 1 4 Dimension Diagrams 1 4 Dimension Diagrams 94 5 1 103 3 1 103 9 1 110 1 Unit mm 96 1 45 5 1 4 0 5 ...

Page 26: ...1 4 Dimension Diagrams 22 ...

Page 27: ... to 63 You cannot set a number other than the above Settings Chapter 2 2 1 Setting the Module ID Ensure that the set ID is not used for any other module connected to the same communications module The ID numbers of modules need not be consecutive Setting the ID to 99 then turning on the power resets all internal settings to the defaults The module ID and COM ID are not related and can be set indep...

Page 28: ...2 1 Setting the Module ID 24 ...

Page 29: ...o the procedure described in the 2391 or 2392 series MODULE BASE instruction man ual 3 1 2 Mounting a Module on the Module Base Mount a module on the module base as shown below Ensure that the lever clicks Preparations Chapter 3 3 1 Installing the Module Do not mount the module base on the ceiling where it may fall off 1 2 ...

Page 30: ...e module 2 Connect the clamp sensor cables to the module s CLAMP SENSOR INPUT terminals at a tightening torque of 0 5 N m Connection diagram p 33 Clamp Sensors 9695 02 50 A 9695 03 100 A 9661 01 500 A 9765 5 A For CT secondary side 3 2 Connecting the Clamp Sensor to Module ...

Page 31: ...bles The 9695 02 and 9695 03 use terminal blocks Therefore various types of cables may be usable Cables equivalent to or better than 600 V vinyl insulated 0 9 mm2 or 300 V vinyl insulated 0 75 mm2 are recommended The 9238 CLAMP SENSOR CABLE 3 m is optionally available Note that measurement may be adversely affected by external noise or the electromagnetic environ ment when using cable longer than ...

Page 32: ... voltage cables to the U INPUT terminals at a tightening torque of 0 8 N m Connection diagram p 33 The terminal blocks use M3 5 screws For connec tion a round crimp connector RAV 1 25 3 5 is recommended For wiring cables equivalent to or better than 600 V vinyl insulated 0 9 mm2 is recommened 3 3 Connecting the Voltage Cable to the Module ...

Page 33: ... prevent short circuiting of the ALARM and CLAMP SENSOR INPUT terminals thus avoiding electric shock and accidents due to short circuiting The ALARM terminals are electrically insulated from the U INPUT terminals and CLAMP SENSOR INPUT terminals To avoid the effects of external noise design the wiring so that cables connected to the ALARM terminals are separated from those for measurement as well ...

Page 34: ...s never attach the clamp sensor to a circuit that operates at more than the maximum rated voltage or over bare conductors Clamp sensor should only be connected to the secondary side of a breaker so the breaker can prevent an accident if a short circuit occurs Connections should never be made to the primary side of a breaker because unrestricted current flow could cause a serious accident if a shor...

Page 35: ... Instruction manuals of the clamp sensors In order to prevent electric shock and short circuit accidents shut off the power to the line to be measured before connecting the clamp sensors and voltage cords Avoid stepping on or pinching cables which could damage the cable insulation Do not input voltage or current to the U INPUT terminals and CLAMP SENSOR INPUT terminals when module power is OFF Thi...

Page 36: ...ent Clamp the cladding of the wire by placing the clamp with the arrow on it facing the load side This module can be used for a single phase 2 wire line to a 3 phase 4 wire line Each channel is not independent however and thus the module cannot be used as two single phase wattmeters When measuring a 3 phase line be sure to align the phase sequence of the measured line with the order of measurement...

Page 37: ...33 3 5 Connecting to the Measured Line Connection diagram 3K 3L 1K 1L 2K 2L U1 U2 U3 N 1 2 K L ALARM Power supply side Measurement of single phase 2 wire line ...

Page 38: ...3 5 Connecting to the Measured Line 34 Connection diagram 3K 3L 1K 1L 2K 2L U1 U2 U3 N 1 2 3 K L K L ALARM Power supply side Load side Measurement of singe phase 3 wire line or 3 phase 3 wire line ...

Page 39: ...n diagram 3K 3L 1K 1L 2K 2L U1 U2 U3 N 1 2 3 K L K L K L K L ALARM Measurement of singe phase 3 wire line or 3 phase 3 wire line using CT and VT PT Power supply side Load side Current trans former Current former trans CT CT Voltage transformer VT PT ...

Page 40: ...3 5 Connecting to the Measured Line 36 Connection diagram 3K 3L 1K 1L 2K 2L U1 U2 U3 N 1 2 3 Ｎ K L K L K L INPUT 3PHASE 4WIRE ALARM Measurement of 3 phase 4 wire line Power supply side Load side ...

Page 41: ...Maximum input voltage current 30 V 20 mA max Allowable loss 75 mW Signal logic Enabled ON Disabled OFF Signal logic indicates the signal state in which a signal s function is enabled The output transistor works as a switch between signal output and ground in the module When output becomes enabled the switch is turned on and current flows from the output signal to COM in the module Therefore a rela...

Page 42: ...utput COM LED Output COM Diode Relay Power Connecting LED Connecting relay ALARM ALARM ALARM ALARM When connecting a relay or LED lamp ensure that the relay or lamp operates at up to 30 V and 20 mA with allowable loss of 75 mW or less When connecting a relay be sure to use a diode to absorb counterelectromotive force Photocoupler ALARM ALARM ...

Page 43: ...e mea surement input terminals or between the CLAMP SENSOR INPUT terminals and U INPUT terminals Beware of electric shock and short circuiting Moreover be sure to cover the measured line when live CAN bus Power Connector Module base Withstand voltage of 1 4 kVAC Ground Insulation Withstand Voltage of 2 21 kVAC Insulation Withstand Voltage of 2 21 kVAC ALARM Alarm output Measurement Input Insulatin...

Page 44: ...4 2 Insulation of Internal Circuit 40 ...

Page 45: ...urement Range Voltage 70 f s to 130 f s Current 2 f s to 130 f s Effective power 2 f s to 130 f s The Range of Operating Temperature and Humidity for Guaranteed Accuracy 23 C 5 C 73 F 8 5 F 80 RH or less The ranges above apply unless otherwise specified in each specification Fundamental Frequency Range 45 to 66Hz Measurement Lines single phase 2 wire line single phase 3 wire line three phase 3 wir...

Page 46: ...200A 500A 1000A Depends on the clamp sensor used Measurement Accuracy Voltage 1 0 f s Current 1 0 f s Clamp sensor accuracy Clamp Sensor and Its Current Range 2331 20 Current Range Selectable using the PC application 1 A 100 mV A 1 A 9765 5 A 20 mV A 5 A 9695 02 50 A 10 mV A 5 A 50 A 9695 03 100 A 1 mV A 100 A 9661 01 500 A 1 mV A 100 A 500 A 1000 A 0 5 mV A 200 A 1000 A ...

Page 47: ...kW 40 00 kW 80 00 kW 200 0 kW 400 0 kW 3P4W 600 0 W 3 000 kW 30 00 kW 60 00 kW 120 0 kW 300 0 kW 600 0 kW The range table lists the full scales of voltage and current mea surement ranges When the VT PT ratio and CT ratio are set the ranges will be multiplied by VT PT ratio CT ratio The number of digits of a measurement to display depends on the PC application used Measurement Range Effective Power...

Page 48: ...e Measured Voltage U1 Start of Totalization The PC application starts measurement End of Totaliztion The PC application ends measurement depending on recording end conditions For details refer to specifications of the PC application Temperature Within 0 05 f s C Effect of Maximum Rated Voltage to Earth Within 0 5 f s Maximum rated voltage to earth 50Hz 60Hz Actual Time Accuracy 100 ppm Reference v...

Page 49: ... Specifications Zero Suppression Voltage Less than 0 5 f s of measurement Current Less than 0 5 f s of measurement less than 0 9 f s when using the 9695 02 with 5A range selected Power When voltage or current is 0 ...

Page 50: ...3P3W Maximum Minimum Average of U1 U2 I1 I2 P PF FREQ Wh 3P4W Maximum Minimum Average of U1 U2 U3 I1 I2 I3 P PF FREQ Wh Instantaneous value MAX MIN AVE recording mode 1P2W Instantaneous value Maximum Minimum Average of U1 I1 P PF FREQ Wh 1P3W 3P3W Instantaneous value Maxi mum Minimum Average ofU1 U2 I1 I2 P PF FREQ Wh 3P4W Instantaneous value Maximum Minimum Average ofU1 U2 U3 I1 I2 I3 P PF FREQ W...

Page 51: ...er the specified time or the current instantaneous value monitored value Recording Interval 1 2 5 10 15 20 30 sec 1 2 5 10 15 20 30 60 min Alarm An alarm is activated when any measurement item is too high or too low Alarm Output Alarm output 1CH Open collector 30 VDC 20 mA max Data Deletion All items of data are deleted by a command New data will be added to the previous data at the start of recor...

Page 52: ...memory Backup Recorded data saved in flash memory Data loss for up to 2 minutes before and after a power outage may occur Clock Function The real time clock year month day hour minute and second of the communications module is used LED Display Used for monitoring and warning Communication Interface CAN bus Maximum Input Voltage U INPUT 300 Vrms 424 3 V peak ALARM 30 VDC CLAMP SENSOR INPUT 1 5 Vrms...

Page 53: ...Option 9695 02 CLAMP ON SENSOR 50 Arms 9695 03 CLAMP ON SENSOR 100 Arms 9661 01 CLAMP ON SENSOR 500 Arms 9765 CLAMP ON SENSOR 5 Arms See When using Model 9765 p 10 9238 CLAMP SENSOR CABLE All sensors are the voltage output type Not complied with the CE marking Operational Ranges for Temperature and Humidity 0 to 50 C 32 to 122 F 80 RH or less with no condensation Temperature and Humidity Rang es f...

Page 54: ...5 3 General Specifications 50 ...

Page 55: ...ack carefully to prevent damage in transit Include cushioning material so the instrument cannot move within the package Be sure to include details of the problem Hioki cannot be responsible for damage that occurs during shipment When transporting the 2331 20 or a system containing this module tape the front of the module or take similar measures to avoid losing internal components Maintenance and ...

Page 56: ...6 2 Service 52 ...

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Page 59: ... 28 0568 E mail os com hioki co jp URL http www hioki co jp Printed in Japan 2331A981 00 All reasonable care has been taken in the production of this manual but if you find any points which are unclear or in error please contact your supplier or the International Sales and Marketing Department at HIOKI headquarters In the interests of product development the contents of this manual are subject to ...

Page 60: ...08H HEAD OFFICE 81 Koizumi Ueda Nagano 386 1192 Japan TEL 81 268 28 0562 FAX 81 268 28 0568 E mail os com hioki co jp URL http www hioki co jp HIOKI USA CORPORATION 6 Corporate Drive Cranbury NJ 08512 USA TEL 1 609 409 9109 FAX 1 609 409 9108 ...

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