Eastron SDM530-MT User Manual
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The unit provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total /
import/export kWh or kVarh.
The pulse constant can be set to generate 1 pulse per:
DFt=2.5 Wh/VArh
0.01 = 10 Wh/VArh
0.1 = 100 Wh/VArh
1 = 1 kWh/kVArh
10=10Wh/kVArh
100 = 100 kWh/kVArh
Pulse width: 200/100/60ms
Pulse output 2 is non-configurable. It is fixed up with active kWh. The constant is 400imp/kWh.
RS485 Output for Modbus RTU
For Modbus RTU, the following RS485 communication parameters can be configured from the
Set-up menu:
Baud rate
1200, 2400, 4800, 9600
Parity
none (default)/odd/even
Stop bits
1 or 2
RS485 network address
nnn
– 3-digit number, 001 to 247
Reference Conditions of Influence Quantities
Influence Quantities are variables that affect measurement errors to a minor degree. Accuracy is
verified under nominal value (within the specified tolerance) of these conditions.
Ambient temperature 23°C ±1°C
Input waveform 50 or 60Hz ±2%
Input waveform Sinusoidal (distortion factor < 0·005)
Magnetic field of external origin Terrestrial flux
Environment
Operating temperature -25°C to +55°C*
Storage temperature -40°C to +70°C*
Relative humidity 0 to 90%, non-condensing
Altitude Up to 2000m
Warm up time 1 minute
Vibration 10Hz to 50Hz, IEC 60068-2-6, 2g
Dimensions
