18
8.1.3 Power Supply
The product is connected with a 2-core wire to supply power and send current signal
Working voltage (Vs):
Without display adjustment module: 16~36VDC
With display adjustment module: 18~36VDC
Load impedance:(Vs-Vmin)/0.022A
For example: When supplying 24VDC for the instrument with display adjustment module:
(24-
18)/0.022 = 272Ω
8.2 Wiring Instructions:
8.2.1 Connection Methods
When wiring, make the 2-core wire go through the enclosure, and make a connection
based on the positive/negative power supply as marked on the nameplate. A flathead
screwdriver may be used for connection.
8.2.2 Wiring Steps
Please follow the steps below:
1. Remove the cover on the housing.
2. Remove the display module by rotating it counterclockwisely.
3. Loosen the fixing screw on the cable screw thread connector
4. Remove the jacket of about 10cm (4in) on the cable, and remove the insulation of 1cm
(0.4in) at the core wire end.
5. Make the cable go through the cable connector, and insert it inside the housing.
6. Connect the wire to the terminal according to the wiring diagram
7. Pull it gently to check whether the wire is fixed firmly on the terminal
8. Connect the shielding with the terminal of the internal grounding wire, and connect the
terminal of the external grounding wire with the electric potential compensation.
9. Fasten the fixing screw of the cable screw thread connector, and make sure the sealing
ring is completely surrounding the cable
10. Re-assemble the display module.
11. Put on the housing cover to complete the electric connection
