Yokogawa DO402 Dissolved Oxygen Analyzer - Manual (Page 92)

IM 12J05D02-01E
11-4 Appendix 2
4/4
QIS 12J05D02-01E
3.7 Atmospheric Pressure Indication Check
Following Section 3.6, press the [ENT] key until the message display shows “PRESS.”
Check that the data display indication at this time is within the range from 900 (hPa) to
1100 (hPa).
Press the [ENT] key. The message display will show “READY.”
Continue to press the [ENT] key to return to normal measurement mode.
CONTACT
FAIL S3 S2 S1
3 2 1 32 71 72 51 52 41 42 31
11
T
1
12
T
2
61 62 65 66 15
RE
13
IE
17
+ -
+
-
mA 1 mA 2
Figure 1 Testing Circuit and Test Equipment
DO402G Converter
Decade
Resistance Box

Power Supply
Standard Current
Generator
+ -
SW1
+
-
DC Ammeter
Current Output 1
300
1%
+
-
DC Ammeter
300
1%
Current Output 2