Christ Elektronik CPM138-AC Instruction Manual Download Page 1 | Manualshive

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Instruction manual

Wattmeter

CPM138-AC

Document-No.

E461605

Issue

02

Dated

15.02.2012

Postal address

Christ-Elektronik GmbH
Alpenstraße 34
DE-87700 Memmingen

Phone

+49 (0)8331 8371 – 0

Fax

+49 (0)8331 8371 – 99

eMail

[email protected]

Internet

http://www.christ-elektronik.de

Copyright

It is forbidden to reproduce or process (using electronic systems), copy or distribute any
part of this document. Translation into another language requires written authorisation.
This document is for the personal use of the owner of the device or Christ-Elektronik
GmbH personnel only.

Technical modifications

Christ-Elektronik GmbH reserves the right to modify the designations, specifications and
technical data without prior notice.

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Summary of Contents for CPM138-AC

Page 1: ...ist elektronik de Copyright It is forbidden to reproduce or process using electronic systems copy or distribute any part of this document Translation into another language requires written authorisation This document is for the personal use of the owner of the device or Christ Elektronik GmbH personnel only Technical modifications Christ Elektronik GmbH reserves the right to modify the designation...

Page 2: ...sts 5 2 5 3 Editing of Parameters 6 2 6 Menu diagram 6 2 8 Deleting the stored Min and Max Values 7 2 9 Tara value 8 3 Beschreibung der Ausgänge 9 3 1 Threshold contacts Relays 9 3 1 1 Alarm mode 9 3 1 2 Regular and inverted switching 9 3 2 Selection of analogue output RS232 interface only CPM 138 2S 9 3 2 1 Analogue output 9 3 2 2 Serial interface 10 3 3 Operation via the serial interface 10 3 3 ...

Page 3: ...esults via an electrically isolated RS 232 interface Additionally this model can also be configured and operated via this interface 1 2 Safety instructions This instrument was designed in accordance with DIN 57411 VDE 0411 Part 1 Safety Measures for Electronic Measurement Instruments and left our production plant in perfect condition in respect to safe ty technology The notes and warnings containe...

Page 4: ...ected to terminals 15 and 16 2 2 Inbetriebnahme Connect the measurement and power supply lines to the appropriate terminals and switch on the power supply The instrument will first perform an automatic display segment test and all LEDs and display segments will light up for about one second After this test the previously active mode of operation is set Any measured values will then be shown on the...

Page 5: ...kWh 99999 9999999 0 0001 1kWh 7 Apparentenergy kVAh 0 999999 kVAh 99999 9999999 0 0001 1kWh 8 Reactiveenergy kvarh 99999 999999 kvarh 99999 9999999 0 0001 1kWh 9 Time 3 0 999999 h 0 999999 0 00001 1 h 10 Simulation value 99999 999999 h 99999 999999 0 00001 1 Measurement without Curren or Voltage transformer 2 Measurement with Curren or Voltage transformer 3 Measurementtime In mode the value of the...

Page 6: ...n max values the tare value the switch thresholds and the version 2 5 1 Access Code Verification The setup menu allows changing the device parameters A 4 digit access code has to be entered to open the setup menu which should prevent unintentional changes to any device parameters Pressing the but ton NEXT changes the display from measurement value monitoring to code verification CodE is displayed ...

Page 7: ...e d_tArA Value CLEAr Display delete tare value d_S_2 Value Switching threshold 2 d_S_1 Value Switching threshold 1 d_UPd Value Version number d_Clr Select CLEAr Clear Energy and Time If E_Clr ON Code verification 1234 56 CodE 000000 Enter code for setup menu Setup menu E_Mod List Mode of operation select input signal Selection via code verification E_rEL E_S_2 Value Switching threshold relay 2 E_S...

Page 8: ...P button Press button once DOWN button Press button once NEXT button Press button once SELECT button Press button once TARE button combination Press buttons simultaneously once BREAK button combination Press buttons simultaneously once RESET button combination Press buttons simultaneously once list Poll list item Setting cannot be changed Quit polling list Select list item Select next list item or...

Page 9: ...he buttons RESET simultaneously As a confir mation CLEAr is displayed for a short time The current tare value can either be changed via the setup menu E_tArA or set to the currently dis played value by pressing the buttons TARE simultaneously As a confirmation S_tArA is dis played for a short time The tare value is stored until the mode of operation E_Mod is changed ...

Page 10: ... The leading sign of either hysteresis value E_H_1 E_H_2 determines the switching mode of the cor responding relay Positive hysteresis regular switching mode Relay is closed when measured value threshold value Relay opens when measured value threshold value hysteresis Negative hysteresis inverted switching mode Relay is closed when measured value threshold value hysteresis Relay opens when measure...

Page 11: ...ia the serial interface 3 3 1 Data format Transfer format 1 start bit 8 data bits 1 stop bit no parity The baud rate can be set to 9 600 19 200 38 400 57 600 or 115 200 baud Measurement values are transferred with six significant digits plus decimal point including automatic range selection Only the minus sign gets transferred as a leading sign The CPM 138 can be operated completely via the interf...

Page 12: ... be performed Setup commands do not have an echo Push buttom emulation The push button emulation allows the same operation as done via the push buttons on the device These commands do not have and echo Polling of the command set The complete command set of the CPM 138 can be polled via the interface using the two polling com mands cm1 first command description and cmn next command description The ...

Page 13: ...E_MFA l 12 Producer Producer L0 1 CmdMode aktiv Command mode L1 1 BlockMode Block mode n 12 Dev Name Device name N 01 NEXT Next button o 06 Error Nr Error message no see table 6 r 0A MeaValue Poll measurement value R 01 RESET Reset button combina tion R1 r1 07 Rel1Valu 0 1 0 Switch state relay 1 0 relay open 1 relay closed R2 r2 07 Rel2Valu 0 1 0 Switch state relay 2 0 relay open 1 relay closed Ra...

Page 14: ...13 v7 10 Energy_S Apparentenergy Es v8 10 Energy_Q Reactiveenergy Eq v9 10 Time Time t Z z 07 Resolut 0 5 5 0 4 decimals after the point fixed 5 automatic display range selection E_rES ...

Page 15: ...omatically when the value decreases back into the given range 7 Min display value flashing Underflow Value below display range minimum This error is acknowl edged automatically when the value increases back into the given range 8 DIvision by zero Division error as a result of an inappropriate scaling of the analogue output 10 ADjust error Adjustment calibration error 11 FormaT error Format error f...

Page 16: ...viour adjustable via menu Input parameters U Measurement range 30 250 VAC Error 0 5V 1 of displayed value Rin 1 MΩ I Measurement range 0 03 16 AAC Error 20 mA 1 of displayed value Rin 0 02 Ω Measure values P Measurement range 4000 4000W 5 W 1 of displayed value S Measurement range 0 4000W 5 VA 1 of displayed value Q Measurement range 4000 4000W 5 var 1 of displayed value PF Measurement range 0 000...

Page 17: ...onal electrically separated via photocoupler ASCII characters at 9 600 19 200 38 400 57 600 or 115 200 baud 1 start bit 8 data bits 1 stop bit no parity Operational temperature 0 50 C no condensation Power supply 100 264 VAC 47 63 Hz approx 7 VA 24 VDC 10 10 max 350 mA electrically isolated residual AC waves max 100 mVPP DC supply with reverse polarity protection Electrical terminals Attached scre...

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