Kenco Engineering KUST Switch - Manual (Page 3)

Relay Version
1. Connect power wiring
a. AC – Hot (L2), Neutral (L2),
and Ground (G)
b. DC – Positive (L1), Negative (G)
2. Connect relay wiring (see diagram)
3. Adjust failsafe jumper
a. HLFS – top (2) pins
b. LLFS – bottom (2) pins
2-Wire Version
1. Connect the power wires as shown in the diagram.
2. Measure the current in the positive lead
a. Dry = 4.0mA
b. Wet = 20.0mA
Specifications
Description Specification
AC 115Vac or 230Vac; 50/60Hz
DC 12 or 24Vdc Input Power
DC (Two-Wire) 9-30Vdc
Relay 10A DPDT
Output
Two-wire (Isolated) 4mA = Dry; 20mA = Wet
Switch -20°F to 170°F
Temperature Range
Sensor -40°F to 300°F
316SS Vacuum to 1000psig
Pressure Range
Tefzel
®
Vacuum to 100psig
Sensitivity (Signal-to-noise Ratio) 500:1
Repeatability ±2mm
Response Time (on Alarm) 0.5 sec. non-adjustable
Relay Terminals Media
Level
Fail Safe
Setting
Relay
Condition NC to C NO to C
HLFS De-Energized Closed Open Above
Setpoint LLFS Energized Open Closed
HLFS Energized Open Closed Below
Setpoint LLFS De-Energized Closed Open
G L2 L1 NC C NO NC C NO
}
115Vac or 230Vac
50/60 Hz
}
12 or 24Vdc
+
-
{
Coaxial Cable
To Sensor
Jumper
High Level Failsafe
(HLFS)
Low Level Failsafe
(LLFS)
- +
}
{
9-30Vdc
Coaxial Cable
To Sensor
4 or 20mA