The FR1000 monitors a DC input signal and provides one dpdt, 5 A alarm relay with an independently adjustable setpoint. The setpoint has a set of red/green LEDs to indicate alarm status. The configuration of the alarm relay is user-settable as follows:
High or Low - High selects alarm on an increasing signal. Low selects alarm on a decreasing signal.
Normal or Reverse - Normal position selects fail-safe operation (loss of power will result in alarm condition). The relay is energized in the non-alarm condition. When the setpoint is exceeded, the relay de-energizes. Selecting the reverse position reverses this logic.
Deadband or Latching – Deadband selects the independently adjustable deadband control. Deadband for the alarm is adjustable from 0.1% to 100% of the input span. The deadband is symmetrical about the setpoint. With latching selected, the alarm will latch when the setpoint is exceeded, and can not be reset unless the input no longer exceeds the setpoint. Reset may be accomplished by remote contact closure or by momentary power interruption. (Several reset
inputs may be tied to one reset contact, but note that all negative inputs will be tied together.)
All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning.
Wilkerson Instrument Co. 800-234-1343
