DRS-341 series User Manual
Shanghai Fengyilong Electronic CO.LTD
www.china-meters.com
Email:[email protected]
86-21-62270763/ 62270963
1.1 Foreword
Thank you for purchasing the FORLONG DRT- 341D series DIN rail three phase four wire energy meters.
With the FORLONG product range we have provided a large scale of energy meters on the market suitable
for 110V AC to 400V AC (50 or 60Hz). Besides the normal energy meters we also developed our own
pre-paid meters with chip card, chip card re-loaders and a complete PC management control system. For
more information on other products please contact our sales department at [email protected]
Although we produce the Forlong DRT- 341Dseries meter according to IEC 62053-21 and our strict quality
inspection, there might be possibilities that our product shows a fault or failure for which we do apologize.
Under normal conditions your product should give you years of benefit and pleasure. In case there is a
problem with the energy meter you should contact your dealer immediately. All energy meters are sealed with
a special seal. Once this seal is broken there is no possibility to claim for warranty. Therefore NEVER open
meter by yourself or break the seal of the energy meter. The warranty time is 6 moths after installation, and
only valid for construction faults.
1.2General Technical Data
1.2.1 Voltage (V)
Voltage AC (Un) 230/400(3~)
Voltage rang 161/279 to 300/500(3~)
1.2.2 Current (A)
Base (Ib) 10
Max (Imax) 100
Starting current (mA) 0.4% of Ib
1.2.3 Power consumption of current ≤2W /10VA per phase
1.2.4 General data
Frequency(Hz) 50(±10%)
Accuracy 1.0
1.2.5Standards IEC 62053-21
1.2.6 Memory back-up EEPROM
1.2.7 Enclosure material
Upper Polycarbonate
Lower Polycarbonate/glass fibre
