SUPMEA U-SUP-DM3000, Руководство пользователя

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Chapter 2 Installation
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7

DM2800
Identification of terminal

DO+: Dissolved oxygen electrode anode

DGND: Dissolved oxygen electrode shield wire

DO-: Dissolved oxygen electrode cathode
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A: Temperature compensation terminal A, NTC10K A or PT1000 A

B: temperature compensation terminal B, NTC10K B or PT1000 B

C: Temperature compensation terminal C, short-circuit terminal, PT1000
three-wire system, short-circuit of PT1000 two-wire system to B, NTC10K
does not need to be connected to C

485A+: RS485 communication output terminal A+

485B-: RS485 communication output terminal B-

I+: (4
～
20)mA output t

I-: (4
～
20)mA output terminal-

HO: High alarm normally open relay

HC: High alarm normally closed relay

COM: Common terminal

LO: Low alarm normally open relay

LC: Low alarm normally closed relay

COM: Common terminal

220V N: AC 220V neutral line

NC: Null