Copyright HK Instruments 2017
www.hkinstruments.fi
Installation version 5.0 2017
CAUTION!
• For CE compliance, a properly grounded shielding cable is
required.
• Use copper wire only. Insulate or wire nut all unused leads.
• Supply a separate cable for relay and signal out when using line
voltage to power the relay.
• Any wiring may carry the full operating line voltage current based
on field installation. The cover locking screw must be installed if
the line voltage is supplied to the relay.
• Care should be used to avoid electrostatic discharge to the device.
• This unit has configuration jumpers. You may need to reconfigure
this device for your application.
1) Route the cables through the square opening in the back plate or
for surface wiring select a knockout on the top or bottom of the
wall plate, as shown in Figure 2a.
2) Connect the wires as shown in Figure 2b and 2c.
STEP 3: CONFIGURATION
WIRING DIAGRAMS
CONTINUED
Configuration of the RHT series device consists of:
1) Configuring the jumpers (see step 4).
2) Configuration menu options.
(Display versions only. See the user manual for further details.)
Figure 2a - Routing the cables
24 V
GND
NC
rH
Temp
+
Output 0/2–10 V / 4–20 mA
Output 0/2–10 V / 4–20 mA
Figure 2b - Wiring diagram: Power input & signal output
Wires can be routed through the square opening in the back plate
Wires can be routed through the top knockouts
Wires can be routed through the bottom knockouts
(Grey colour indicates that a jumper is installed)
No jumper
Circuit open
Jumper installed
Circuit closed
Jumper stored
NC
COM
NO
STEP 2: WIRING DIAGRAMS
Figure 3 - Jumper installation
Figure 2c - Wiring diagram: Relay
