Object or ground sensing with safe (low voltage, low current)
Input can be contact, probe or solid-state sensing device.
Two output poles, independently convertible from normally-open
Complete isolation between line, load, and logic terminals.
Compact size. DIN rail or panel mount.
LED status indicator for each output pole.
Regent’s 5 Year “No-Questions-Asked” Warranty.
Part presence or absence detection
Liquid level control
Web break detection
Feed limit switch
Wire break detection
Intrinsic safety barrier interface relay
UL Recognized File number E57361
The WatchGuard120 senses the closing of external contacts
or sensors. It is ideal for monitoring part presence and liquid levels
in industrial environments.
An isolated internal power supply provides low voltage sensing to
any contact, positioning electrode, limit switch, magnetic reed switch,
float switch, proximity sensor, etc. The low-energy sensing circuit
increases the life of reed switches and other contacts by eliminating
inrush current at turn-on and arcing at turn-off.
Because it responds to a drop in resistance, the WatchGuard120 will
respond to the closing of “dirty” contacts: a contact
resistance below 25K ohms will energize the relay.
When the WatchGuard120 senses a closed contact, its two solid-state
output switches energize. Field-proven AC output poles can control
120 VAC industrial loads such as solenoid valves and contactors, or
serve as logic inputs to programmable controllers.
1. Either output pole can be used to provide a latching function.
2. Terminals L2 and/or 2 may be grounded.
3. For loads greater than 1 amp, do not parallel solid-state switches. The
current will not divide equally and may result in damage.
4. On removal of L1,L2 voltage, both A,B and C,D open.
5. Up to 5 output switches (A,B and C,D) from several WatchGuard120’s
may be used in series.