Yokogawa EXA ISC202 2-wire Conductivity Transmitter/Analyzer User Manual
Page 94
IM 12D06A03-01E
3-2 Appendix
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QIS 12D06A03-01E
Table 1
Current Output (Indication)
Output Range
4.0 mA
4 ±0.02 mA DC
12.0 mA
12 ±0.02 mA DC
20.0 mA
20 ±0.02 mA DC
3.3 Temperature
Indication
Check
<Test>
x
From the last step in Item 3.2, Current Output Test, press the [ENT] key repeatedly until the
message display shows “PT1000.”
x
Change the resistance value of the resistance box 1 (for temperature) as shown in Table 2-1
and check the temperature readings. Each temperature reading must be within the range.
Table 2-1 (PT1000)
Resistance of
Resistance Box 1
Indication range
1097.3 :
25.0
±0.3°C
1385.0 :
100.0
±0.3°C
x
Press the [ENT] key. The message display will show “30k NTC.”
x
Change the resistance value of the resistance box 1 (for temperature) as shown in Table 2-2
and check the temperature readings. Each temperature reading must be within the range.
Table 2-2 (30k NTC)
Resistance of
Resistance Box 1
Indication range
30 ｋ:
25.0
±0.3°C
2.069 ｋ:
100.0
±0.3°C
x
From the above last step, proceed directly to the resistance (conductivity) indication check in
Item 3.4.
3.4 Resistance (Conductivity) Indication Check
<Test>
x
From the last step in Item 3.3, Temperature Indication Check, press the [ENT] key
repeatedly until the message display shows “SEL.10.”
x
Press the [ENT] key. The message display shows “ WAIT ” momentarily, followed by
“RES.1.”
x
Set resistance box 2 to the value shown in Table 3 and check the indication. The resistance
indication must be within the range.
x
Press the [ENT] key. The message display shows “ WAIT ” momentarily, followed by
“RES.2.” There is no need to check here, so just press the [ENT] key.
x
The message display shows “ WAIT ” momentarily, followed by “RES.3.”
x
Set resistance box 2 to the value shown in Table 3 and check the indication. The resistance
indication must be within the range.
x
Press the [ENT] key. The message display shows “ WAIT ” momentarily, followed by
“RES.4.” There is no need to check here, so just press the [ENT] key.
x
The message display shows “ WAIT ” momentarily, followed by “RES.5.”