YOKOGAWA EXAxt ZR402G, User Manual

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<9. Calibration>
9-9
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
Table 9.2 Default Settings for Calibration
Item Default Setting
Calibration mode Manual
Calibration procedure Span - zero
Zero gas (oxygen) concentration 1.00%
Span gas (oxygen) concentration 21.00%
Hold (Output stabilization) time
10 minutes, 00 seconds
Calibration time 10 minutes, 00 seconds
Calibration interval 30 days, 00 hours
Start date and time 00 (YY) 01 (MM) 01(DD) 00:00
9.3 Calibration
9.3.1 Manual Calibration
For manual calibration, consult Section 7.11, “Calibration,” earlier in this manual.
9.3.2 Semi-automatic Calibration
(1) Calibration startup using infrared switches
Table 9.3 Semi-automatic Calibration Procedure
Switch operation Display Description
> ∧
ENT
b 11
Change the parameter code to b11. (Previous operations omitted)
> ∧
ENT
SA-CAL
Touch the [ENT] key to display "SA-CAL" (Semi Auto CAL).
> ∧
ENT
SPAn
/20.84
Touch the [ENT] key again to open the span gas solenoid valve.
The span gas then flows. "SPAn" and the currently measured
value are alternately displayed. If the "output hold" is set, the
output hold will start at this time.
> ∧
ENT
ZEro
/0.89
If the set calibration time elapses, the span gas solenoid valve
closes automatically, the zero gas solenoid valve opens and the
zero gas flows. "ZEro" and the currently measured value are
displayed alternately.
> ∧
ENT
CALEnd
End If the set calibration time elapses, the zero gas solenoid valve
then closes automatically. The ''CALEnd'' flashes until the set
output stabilization time elapses.
> ∧
ENT
Basic panel
display
If the output stabilization time elapses, the basic panel display
then appears. Output holding will be released.
When “CAL Err” appears, a calibration coefficient alarm (alarm 6 or 7) may have occurred.
Press [ENT] key to return to basic panel display. Check the alarm number. Refer to Subsection 12.2.2.2, Alarm 6, or Subsection
12.2.2.3, Alarm 7, remove the cause, and then recalibrate the instrument.
The symbol [ ] indicates that the corresponding keys are being touched, and the light characters indicate flashing.
“/” indicates that both are displayed alternately.
(2) To start calibration using an input contact, follow these steps:
• Make sure that Calibration start has been selected in the Input contacts display (see
Section 8.5, earlier in this manual).
• Apply an input contact to start calibration.
(3) To stop calibration midway, follow these steps:
Touch the [>] key and [ENT] key together. The calibration will stop and the output
stabilization time will be set up. Touch the [>] key once again to return to the basic panel
display and the analyzer will be in normal measurement.