Gossen MetraWatt U1281 Operating Instructions Manual

Electronic active energy meters

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Operating Instructions

Electronic Active Energy Meters

U1281/U1289/U1381/U1387/U1389

Chapter

1 Safety Precautions - Symbols ...........................2

2 Serial Plate - Terminals ....................................4

3 Pulse Output - Bus Interfaces ............................6

4 Display and Control Panel ..................................7

5 Error Messages - Reset ...................................14

6 Meter calibration - Maintenance .....................15

7 Product Support ...............................................15

8 Repair and Replacement Parts Service ............16

MAIN PISTRIBUTION - PRODUCTION

Contents

3-349-275-15

9/7.06

Page

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Summary of Contents for Gossen MetraWatt U1281

Page 1: Table Of Contents
Operating Instructions Electronic Active Energy Meters 3-349-275-15 U1281/U1289/U1381/U1387/U1389 9/7.06 MAIN PISTRIBUTION – PRODUCTION Chapter Contents Page 1 Safety Precautions – Symbols ......2 2 Serial Plate – Terminals ........4 3 Pulse Output – Bus Interfaces ......6 4 Display and Control Panel ........7 5 Error Messages –...
Page 2: Safety Precautions - Symbols
Safety Precautions – Symbols – Check the specified nominal voltage on the serial plate before placing the instrument into service. – Observe the maximum voltage of the pulse output. – Make sure the connector cables are not damaged, and that they are voltage-free while wiring the instrument. –...
Page 3 Meaning of Symbols on the Instrument Label with seal from federally approved test authority Warning concerning a source of danger (Attention, observe documentation!) Total insulation, Safety Class II device Indicates EC conformity Symbol for type approval This device may not be disposed of with the trash. Further information regarding the WEEE mark can be accessed on the Internet at www.gossenmetra- watt.com by entering the search term ’WEEE’.
Page 4: Serial Plate - Terminals
Serial Plate – Terminals GMC-I Gossen-Metrawatt GmbH...
Page 5 GMC-I Gossen-Metrawatt GmbH...
Page 6: Pulse Output - Bus Interfaces
Energy Import Energy Import Pulse duration: 30 ms + 5%, Interpulse period: > 30 ms Pulse rates fix V1/V3 Programmable V2/V4 Direct U1281 / U1289 1 … 1000 pulses/kWh 1000 pulses/kWh Transformer U1381 / U1387 / U1389 f (secondary) f (secondary) 1000 pulses/kWh 1 …...
Page 7: Display And Control Panel
Resolution of Energy Import Main Display Meter CTxVT CTxVT Standard Calibration Unit Feature min. max. Reading Reading * U1281, — — 123456.7 23456.78 U1289 Q0, Q1 10 12345.67 2345.678 or Q9 100 123456.7 23456.78 1000 1234567 234567.8 Q1 or Q9 1001 10000 12345.67 2345.678 MWh...
Page 8 Meanings of Symbols on the LCD Main display (active energy Etot* in kWh or MWh) Auxiliary display (instantaneous power Pmom* in kW or MW) Error: alternating error code and instantaneous power * U138x: CT and VT are taken into consideration Main display is not/cannot be calibrated, if U is displayed.
Page 9 Key Symbols for Parameters Configuration Key and 2 key bit blanked: Parameters CT, VT or SØ configurable according to features, can be disabled with enable key. Key displayed with one key bit: Parameters CT, VT or SØ disabled, can be changed after activating enable key. Key blanked, 2 key bit displayed: Parameters CT, VT or SØ...
Page 10 Key Operation Querying parameter values CT, VT and S∅ Apart from the LCD test, the menu key located between LCD and serial plate serves to query current paramter val- ues and, in the case of active energy meters with special features, to change parameters (provided that the enable key has been activated before).
Page 11 b) Changing parameter values ➭ Briefly press the enable key first, as described under Item a) (activates operating mode „Change parame- ters“). ➭ Press and hold the menu key once until the read-out test is displayed. ➭ Repeatedly press the menu key until the parameter to be changed appears at the display.
Page 12 Standard Read-Out Auto 123456 000230 1 234 0000V10 Read-out test Firmware version 888888 0001 0000 8 888888 Auto Calibration read-out 001000 Primary energy 000010 Secondary energy Parameter modifications bus-specific menus see only after enabling interface descriptions U138x with Feature Q1 0200 Auto U138x with Feature Q1...
Page 13 Auto 00049 00F0H Multifunctional display – Feature M1 Phase voltage U1N, U2N, U3N Delta voltage U12, U23, U13 Current I1, I2, I3 Active power P1, P2, P3, Ptot Reactive power Q1, Q2, Q3, Qtot Apparent power S1, S2, S3, Stot Power factor PF1, PF2, PF3, PFtot Frequency...
Page 14: Error Messages - Reset
Error Messages – Reset Read-out If an error occurs, the respective error code and instanta- neous power are displayed alternately. Error Code Meaning Cause/Remedy Maximum value for U1 VHi1 exceeded Maximum value for U2 VHi 2 exceeded Maximum value for U3 VHi 3 exceeded Maximum value for I1...
Page 15: Meter Calibration - Maintenance
Meter calibration – Maintenance Duration of calibration validity: 8 years Note for Test Laboratories Directly measuring meters (U128X): In as-delivered condition, screw terminals 2, 5 and 8 are tightened in order to establish contact between current and voltage inputs. If isolated voltage supply is required for tests, the screw ter- minals can be released (remove screw cover, release screws, pull insulating sleeves over contact pins in the ter- minals and connect simulator voltage).
Page 16: Repair And Replacement Parts Service
Repair and Replacement Parts Service If required please contact: GMC-I Gossen-Metrawatt GmbH Service Center Thomas-Mann-Straße 20 90471 Nürnberg • Germany Phone +49-(0)-911-8602-0 +49-(0)-911-8602-253 E-Mail service@gossenmetrawatt.com This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries. Competent Partner Federally approved test authority EB8 Initial calibration of meters from...

This manual is also suitable for:

U1289 U1381 U1387 U1389