Eastron SDM630MCT Series - Display Features and Thresholds; Pulse Output Description; Under-range and Over-range Display; Under-range;Over-range Thresholds

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: 0086-573-83698881/83698882 Fax: 0086-573-83698883 Web: www.eastron.com.cn
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Pulse output
This provides two pulse outputs that clock up measured active and reactive energy. The constant
for active energy is 3200imp/kWh(Terminals 11&12). The pulse width for pulse 1(Terminals 9&10)
can be set from the set-up menu.
Description of under-range and over range display
1, Display Description of Under-range and Over-range parameters:
On the voltage, current and power, etc. displays, when the parameters mesured are under-range,
the display will show “0”. when the parameters are over-range, two interfaces will be shown by
turns. One is the current measured value and the other is with “-“ symbol.
For example:
If the voltage is overrange, the display of voltage will show below two interfaces in rotation:
Interface 1
Interface 2
2, Explanation of the threshold of Underrange and Overrange:
Threshold of Under-range：
A, Voltage: < 30V (for L-N / L-L)；
B, Current: < 0.004A (for L-N / L-L)；
C, Power: < 1W(VAr)(VA) (for L-N / L-L)；
Threshold of Over-range：
A, Voltage: > 305V (for L-N)；Voltage: > 530V (for L-L)；
B, Current: > 6A (for L-N / L-L)；
C, Power: > 1830W(VAr)(VA) (for L-N)；Power: > 3180W(VAr)(VA) (for L-L)；
Note: The threshold value of under-range and over-range is the secondary value of the meter. CT
and PT ratio are not included.
For example:
if the CT ratio is 10, it is under-range when the current is less than 0.04A (=0.004*10); It is
over-range when the current is over 60A (=6*10).