Differential Ph Systems Connections - Capable Of Providing Sensor Diagnostics (Ap200, Tbx5) - ABB AX400 Series User Manual

Single and dual input analyzers for ph/redox (orp)

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Single and dual input analyzers for pH/Redox (ORP)

AX416, AX436, AX460, AX466 & AX468

6.6.2 Differential ph Systems Connections – Capable of Providing Sensor Diagnostics (AP200, TBX5)

When connecting one of these pH systems to the AX400 transmitter, ensure the differential input switch for the relevant sensor is

See Section 5.4, page 33 for sensor diagnostics configuration. If diagnostics are not required leave them switched off.

Terminal Block B

Sensor B

Sensor A

B10

B11

B12

B13

B14

B15

B16

Table 6.3 Differential ph Systems Connection – AP200, TBX5

*In normal operation do not connect the heavy green wire. If noisy readings are obtained, connect the wire to the earth stud.

Note.

1. If the sensor is fitted with a 2-wire PT100, Pt1000 or 3K Balco temperature compensator, link terminals B9 and B10 (and

B1 and B2 if dual input analyzer.).

2. Redox systems are not temperature compensated so do not have temperature sensors. To remove temperature error

messages, set

Temperature Sensor

to the correct type – see Section 5.3, page 30.

Temperature Sensor

IM/AX4PH Rev. P

Function

Temperature Compensator (if fitted) Common –

Table of Contents

Ax416 Ax466 Ax468 Ax436 Ax460