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MODEL 3081 pH/ORP SECTION 3.0
WIRING
REMOVE BNC AND TERMINATE COAXIAL CABLE BEFORE WIRING SENSOR TO
TRANSMITTER. SEE FIGURE 3-23. ALTERNATIVELY, USE A BNC ADAPTER (PN
9120531) OR ORDER MODEL OPTION -62 (SENSOR WITH BNC REMOVED AND TER-
MINATIONS COMPATIBLE WITH 3081 pH/ORP). IF USING A BNC ADAPTER, THE RED
WIRE IS MV OR pH IN AND THE BLACK WIRE IS REFERENCE IN. TO PREVENT
SHORT CIRCUITS TO THE TRANSMITTER HOUSING, INSULATE THE BNC WITH BY
WRAPPING IT WITH ELECTRICAL TAPE.
FIGURE 3-2. Wire functions for Models 399-02, 399-09, 381pH-30-41,
and 381pHE-31-41 before removing BNC and terminating cable.
IF USING ABNC ADAPTER, THE RED WIRE IS MV OR pH IN AND THE BLACK WIRE
IS REFERENCE IN. TO PREVENT SHORT CIRCUITS TO THE TRANSMITTER HOUS-
ING, INSULATE THE BNC WITH BY WRAPPING IT WITH ELECTRICAL TAPE.
FIGURE 3-3. Wire functions for Models 399-02, 399-09,
381pH-30-41, and 381pHE-31-41 after removing BNC and
terminating cable. Wire functions for Models 399-09-10-62,
381pH-30-42 and 381pHE-31-42 as received.
NOTES:
1. PLACE PREAMPLIFIER SELECTION SWITCH S1 IN "TRANSMITTER" POSITION
(SEE SECTION 2.2).
2. IF SENSOR HAS 3K BALCO RTD, SET JUMPER (SECTION 2.2) AND PROGRAM
TRANSMITTER TO RECOGNIZE RTD (SECTION 8.5-pH OR 10.5-ORP)
3. JUMPERS SUPPLIED BY CUSTOMER.
FIGURE 3-4. Wiring diagram for Models 399-02, 399-09,
381pHE-30-41, and 381pHE-31-41 after removing BNC
and terminating cable. Wiring Diagram for Models
399-09-62, 381pHE-30-42, and 381pHE-31-42 as
received. Wiring directly to the transmitter.
NOTES:
1. PLACE PREAMPLIFIER SELECTION SWITCH S1 IN
"SENSOR/JUNCTION BOX" POSITION (SEE SEC-
TION 2.2).
2. IF SENSOR HAS 3K BALCO RTD, SET JUMPER
(SECTION 2.2) AND PROGRAM TRANSMITTER TO
RECOGNIZE RTD (SECTION 8.5-pH OR 10.5-ORP)
3. SEE FIGURE 3-24 FOR TERMINATION OF RAW
INTERCONNECTING CABLE (PN 9200273).
4. JUMPERS SUPPLIED BY CUSTOMER.
FIGURE 3-5. Wiring diagram for Models 399-02,
399-09, 381pH-30-41, and 381pHE-31-41 after
removing BNC and terminating cable. Wiring
Diagram for 399-09-62, 381pH-30-42, and
381pH-31-42 as received. Wiring through a
remote junction box to the transmitter.