Function:
The UA-7D-RTX is a microprocessor controlled RTD alarm trip. It is easily field configurable to operate
in a large number of different modes. Each relay contact output is individually configurable to the following
modes of operation: High/Low Trip , Normally Energized / De-energized. Additionally, both relays operate
from the same input to give two levels of alarm for a single input.
A delay feature allows a 0-60 sec. adjustable ON delay to be added to the trip function in order to screen
out intermittent and erroneous alarms. If the delay function is activated, the input must be greater
than the setpoint for the time specified by the delay before the relay will activate. There is also a
combined ON and OFF delay function which, in addition to delaying the relay 'turn-on' time, delays the
relay'turn-off' time.
Specifications:
Isolation: Input to Output to Power 1500 VAC (test)
RTD Type: platinum, 100 Ohms at 0 Deg.C, Alpha=0.0385
Accuracy/Linearity: 0.3% max., 0.1% typ.
Operating Temperature: -40 Deg.C. to +50 Deg.C
Temperature Effects: 0.5% max., 0.2% typ. (for 40 Deg.C. change)
