Phcn-962 Connection Diagram - Omega PHCN-962 User Manual

connection diagram
PHCN-962
1.Temperature
terminal (PT1000)
2. Temperature electrode negative
terminal (PT1000)
3. Temperature electrode sensing
terminal (If use two-wire system,
please use short circuit between 2
and 3).
4. COM（
short circuit with 5 under
）
normal status
5. pH negative terminal
6. REF
7. pH value 4 — 20mA Output,
negative terminal
8. pH value 4 — 20mA Output,
positive terminal
9. 485A output
10. 485B output
11. Relay A（SP1）
12. Relay A（SP1）
13. Relay B（SP2）
14. Relay B（SP2）
15. Clearing Relay
16. Clearing Relay
16
Warning：Make sure to power off before connecting. The back
panel consists of three connectors.
PHCN-962 series connection diagram
p H/OR P INP UT
S /N:
electrode positive
11 12 13 14 15 16
17. Connect bigger earth wire
18. Alternating connect earth wire
19. Electric source input 110V/220V alternating current
pH/ORP input terminal
Jodhpurs JP2 220V
Jodhpurs JP1 110V
17 18 19
WARNING