SUPMEA SUP-pH6.0, Руководство пользователя

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Chapter 2 InstallationChapter 2 Installation
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2.3 Wiring
Wiring diagram
2.3.1 Identification of terminal
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INPUT: Measuring terminal of the electrode
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REF: Reference terminal of the electrode
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NC: Unidentified
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A: Temperature compensation terminal A,NTC10K and PT1000 connect here
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B: Temperature compensation terminal B,NTC10K and PT1000 connect here
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C: Temperature compensation terminal C, PT1000 three-wire temperature
grounding, PT1000 two-wire need to be short-connected to TEMPB, not
NTC10K.

NC: Unidentified

RS485 (A +): RS485 communication interface A +
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RS485 (B -): RS485 communication interface B-
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I (+): 4-20mA output end+
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I (-): 4-20mA output end-
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AC220V (L): AC220V FireWire
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AC220V (N): AC220V zero line
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HO: High alarm normally open relay
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HC: High alarm normally closed relay