Checking Calibration Contact Output - YOKOGAWA ZR402G User Manual

CAUTION
If you conduct an open-close check for the contact output 2, Error 1 (cell voltage failure) or Error
2 (heater temperature abnormal) will occur. This is because the built-in heater power of the
detector, which is connected to contact output 2, is turned off during the above check. So, if the
above error occurs, reset the equipment or turn the power off and then back on to restart (refer to
Section 10.4, "Reset," later in this manual).
7.10.2

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 7.12. The table uses an example with a zero gas solenoid valve.
Table 7.12
Switch operation
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
> ∧
The symbol [
Checking Calibration Contact Output
Display
A01
ENT
Display after the password has been entered.
G01
ENT
Touch the [∧] key to switch to Group G.
G01
ENT Touch the [>] key to move the position of the digit that is flashing to the
right one digit.
G11
ENT
Touch the [∧] key to enter 1.
G11
ENT
Touch the [>] key to move the position of the digit that is flashing to the
right one digit.
G15
ENT
Touch the [∧] key to enter 5.
0
ENT
Touch the [ENT] key to have 0 flash.
The solenoid valve remains closed.
1
ENT
Touch the [∧] key to enter 1.
1
ENT
Touch the [ENT] key. The flashing continues.
1
ENT
Touch the [ENT] key again to stop the flashing, and the solenoid valve will
be open to let the calibration gas flow.
G15
ENT
Touch the [ENT] key once again to switch to the parameter code selection
display.
The solenoid valve will then be closed.
ENT Basic
Touch the [>] key together with the [ENT] key to return to the basic panel
panel
display.
display
(This is not required if you proceed to make another setting.)
(The displayed numeric characters indicate the measurement gas
concentration.)
] indicates that the key is being touched. Light characters indicates that the digits are flashing.
<7. Startup>
Description
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
7-15