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<5. Wiring>
5-12
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
5.2.10 Temperature Input Wiring
(Only for Humidity Analyzer)
When inputting the measurement gas temperature from external of the equipment, connect a
two-wire temperature transmitter. The relative humidity and dew point are acquired based on the
temperature signal from the connected transmitter, in the case where the setting is “Temperature
input selected” and “external input”. As for the wiring of the temperature transmitter and
thermocouples, refer to appropriate temperature transmitter instruction manual.
AI+
AI-
FG
Shielded cables
+
-
Converter
Temperature transmitter
F5-14E.ai
Figure 5.13
l
Applicable Temperature Transmitter
Apply a temperature transmitter that is suit for the following interfaces:
Output signal: 4 to 20 mA DC, two-wire system
Maximum supply voltage from the analyzer:
24 V DC
Input resistance of the analyzer: Maximum 250 V (The load resistance of the transmitter is the
total of wiring resistance and input resistance.)
Temperature Transmitter Burnout
When outputting a burnout signal of the temperature transmitter with a contact output of the
analyzer, use “high-limit temperature alarm”. (Refer to Section 8.4, “Contact Output Setting.”) In
this case, set the burnout signal of the temperature transmitter to exceed the high limit (20 mA or
more).
Cable Specifications
Use a two-core shielded cable for wiring.
Wiring Procedure
(1) M4 screws are used for the converter terminals. Cables should be equipped with
appropriate crimp contacts. Ensure that the cable shield be connected to the FG terminal of
the converter.
(2) Be sure to connect “+” and “-” polarities correctly.