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Products

EM 9400

The EM9400 from Trinity is an easy-to-use, cost effective electrical power meter that offers all the basic measurement capabilities required to monitor an electrical installation. In addition to measuring the instantaneous parameters, it also measures all three energies, thus helping to measure energy costs.

Over the basic metering, it provides RS485 port supporting MODBUS RTU protocol, THD measurements, Phase angle, Unbalance % for Voltage and Current, On Hour & Run Hour, Power Interruption recording. These parameters are available over RS485 only.

The CT Primary, Secondary and PT ratios are site selectable.

Features

  • Class 1.0s accuracy as per IS13779
  • Microcontroller Based
  • Seven Segment LED Based Display
  • Measures all important Electrical Parameters
  • Compact 96 X 96 DIN enclosure
  • RS485 port for connection to SCADA/EMS
 

Specifications

Parameters
Type Name Statistics
Input Supply Three Phases and Neutral of a 3P4W system
Voltage Direct Voltage Input : 25 to 500V L-L, 25 to 300V L-N
PT Ratio : Site Selectable
Burden : 0.5VA
Current Secondary Current Input : 5A or 1A (Site Selectable)
CT Ratio : Site Selectable
Range of Reading : 5 – 5000A
Burden : < 1.0VA
Overload : 5A CT = 6A RMS Continuous
1A CT — 1.2A RMS Continuous
PowerSupply Auxiliary Supply (AC) : 40 - 480 VAC/DC, 50-60 Hz.
Auxiliary Supply (DC) : 8 - 32 VDC
MEASUREMENT True RMSBasicParameters Voltage(Volts L-N & L-L) VL-N - Accuracy : 0.5% of Reading
VL-L - Accuracy : 1.0% of Reading
Current(Amps IR, IY, IB) Accuracy : 0.25% of Reading
Line Frequency 45 to 65 Hz, Accuracy : 0.3% of Reading
Power Active Power (P) Accuracy : 1% of Reading(For IPFI > 0.5)
Reactive Power (Q) Accuracy : 1.5% of Reading(Between 0.5 Lag to 0.8 Lead)
Apparent Power (S) Accuracy : 1% of Reading
Power Factor For Individual phases and System
Accuracy : 1.0% of Reading (IPFI ≥ 0.5)
Range of Reading : 0.05 to 1.00 Lag/Lead
Energy Total Active Energy (KWh) Range of Reading : 0 to 9999999.9
Accuracy : class 1.0s as per IS13779
Total Apparent Energy (KVAh) Range of Reading : 0 to 9999999.9
Accuracy : 1.0% of Reading
Total Apparent Energy (KVARh) Range of Reading : 0 to 9999999.9
Accuracy : 1.5% of Reading
PowerQuality THD for each phase current
THD for each phase voltage
MISC. Dimensions Bezel 96 X 96 mm
Panel Cutout 92 X 92 mm
Depth of installation 55 mm
Display 4x3 7-Segment
Operating temp 10°C to 50°C
Weight 0.29 Kgs (Approx.)
Min. Operating Current 0.4% to 120% of CT primary
Comm RS485 Modbus-RTU protocol