* other voltages available on request True RMS SINGLE PHASE VOLTAGE INDICATOR / MONITOR / WINDOW COMPARATOR OVER / UNDER VOLTAGE PROTECTION
dual colour LED display
1 RELAY
re-transmit as a 0-10V signal
This device is used to measure and display true RMS AC voltage signals.
ADDITIONAL FEATURES INCLUDE:
Relay(s) remain energized while monitored voltage remains within pre-set upper & lower values.
Once tripped, the voltage must recover by the pre-set hysteresis voltage (difference between trip & recovery) before the relay operates again.
Display scale: Adjust the display to match the input of a voltage transformer.
Start-up delay: At start-up the relay remains energized for this pre-set time to allow the input voltage to stabilize before monitoring starts.
Reaction delay: (tripp delay) Once energized, the relay will tolerate fault conditions for this pre-set time before the relay is de-energized. This allows for short term fault conditions.
Recovery delay: Whenever the relay is de-activated, it will not operate again until this time has lapsed.
Latch facility: Once de-energized, the relay will not operate until the short across the latch pins is removed. (even if the fault condition has been corrected).
Additional features:
Auxiliary supply voltage is isolated from the measured AC
standard voltages AC: 110V , 240V , 400V, 525V ±15%
Adjustable parameters
scale 5V - 3050V
upper limit (if full scale = 300V) 0V - 300V
lower limit (if full scale = 300V) 0V - 300V
hysteresis 1V - 300V
start-up delay 0 - 99 seconds
reaction delay (tripp delay) 0 - 99 seconds
recovery delay (minimum relay off time) 0 - 99 seconds
calibration 90% - 110%
keypad and menu lock
General information all parameters are saved to non-volatile eeprom memory, thus eliminating the need to re-program after a power failure
Technical information TRUE RMS by taking ±180 readings per cycle
All parameters are saved to non-volatile eeprom memory, thus eliminating the need to re-program after a power failure
Accuracy: 1% of full scale Typically 0.5% at 25 °C.
Scale: 5 to 3500 (in steps of 5)
Full scale input voltage: 300V RMS
Supply voltage: +-15% of rated voltage