Yokogawa Integral Oxygen Analyzer ZR202 User Manual
Page 81
IM 11M13A01-04E
7-17
7. Startup
7.9.2
Checking Calibration Contact Output
The calibration contacts are used for the solenoid valve drive signals for the Automatic
Calibration Unit. This output signal enables you to check the equipment operation.
Check the flowmeter gas flow for that operation.
Follow the steps in Table 7.11. The table uses an example with a zero-gas solenoid
valve.
Table 7.11 Checking Calibration Contact Output
T7.10E.EPS
Display
Description
Switch operation
>
>
>
>
>
>
>
>
>
>
>
>
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
Ͼ
ENT
ENT
ENT
ENT
ENT
ENT
ENT
ENT
ENT
ENT
ENT
ENT
A
01
G
01
G
0
1
G
1
1
G1
1
G1
5
0
1
1
1
G
1
5
Basic
panel
display
Display after the password has been entered.
Touch the [ ] key to switch to Group G.
Touch the [>] key to move the position of the digit
that is flashing to the right one digit.
Touch the [ ] key to enter 1.
Touch the [>] key to move the position of the digit
that is flashing to the right one digit.
Touch the [ ] key to enter 5.
Touch the [
ENT
] key to have 0 flash.
The solenoid valve remains closed.
Touch the [ ] key to enter 1.
Touch the [
ENT
] key. The flashing continues.
Touch the [
ENT
] key again to stop the flashing,
and the solenoid valve will be open to let the calibration gas flow.
Touch the [
ENT
] key once again to switch to the parameter code
selection display.
The solenoid valve will then be closed.
Touch the [>] key together with the [
ENT
] key to return to the
basic panel display.
(This is not required if you proceed to make another setting.)
(The displayed numeric characters indicate the measurement
gas concentration.)
The symbol [ ] indicates that the corresponding keys are being touched, and the light characters indicate flashing.
Ͼ
ٙ
ٙ
ٙ