Yokogawa Low Concentration (ppm) Zirconia Oxygen Analyzer OX400 - Manual (Page 36)

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5. Names and Functions>
5-3
IM 11M10B01-01E
5.2 Rear Panel
!
INLET
OUTLET
N200
C US
R
172608
SERIAL
(RS-232)
FUSE
250V T3.15A
!
RCCOM
RC3
RC2
RC1
FAIL
DO
PUMP
OFF
G
V
-
+
mA
-
+
MS1
MS2
MS3
MS
COM
MSI
COM
MSI2
MSI1
1
12
2
3
4
5
6
7
8
9
10
11
13
NOT using
Figure 5.3 Description of Rear Panel
1 Gas Inlet
This is an inlet for introducing sample gas. The connector is Rc1/4 or 1/4NPT.
2 Gas Outlet
This is an outlet for discharging sample gas. The connector is Rc1/4 or 1/4NPT.
3 Fan
This is a cooling fan inside the OX400. Make sure the outlet of the fan is not blocked
4 Power Plug
This is a 3P power plug with a ground terminal. A fuse is included. Use the supplied power cord.
Do not use the power cord with another device.
5 Contact Output Terminal (DO Output)
The event of a high or low oxygen concentration alarm “ALM7” causes output at the terminal. It
does not work without a concentration alarm.
6 Contact Output Terminal (FAIL)
This is a contact output terminal for errors. The event of an error causes output.
7 Contact Output Terminal for Range Output
In the auto range, the current range is output at the contact output terminal
8 Fuse Rating Display
The rating of the power fuse is displayed.
9 Contact Input Terminal
This contact input terminal is used to turn on and off the suction pump from the outside.
10 External Output Terminal (Primary Output)
Measured values are output at 4-20 mA DC in the set measurement range.