GasTech GTD2000-Tx, Руководство оператора

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10.4.2. Span Calibration
※ Entering Calibration Mode is same as Zero Calibration.
Select “CALIBRA. MODE” by touching "↑" or "↓" switch.
Touching “FUNC” switch when “CALIBRA. MODE” is displayed will enter
Calibration Mode.
Measuring Condition will return on touching “RESET” switch.
Select [SPAN] by touching "↑" or "↓" switch. Now, touch “FUNC” switch to
enter Span Calibration mode.
Select [YES] by touching "↑" or "↓" switch. Now, touch “FUNC” switch to
carry out Span Calibration.
Inject standard gas into the Sensor using a calibration device at 500mL/min
for 90 sec; touch “FUNC" Switch when Measuring Value was stabilized to
enter the next Mode.
When HOLD function of Maintenance Mode is ON, the maximum value of
the current SPAN gas is HOLD, and the HOLD value is displayed in the 1
st
row.
In the 2
nd
row is the current Measuring Value displayed.
It’s the Mode to set the standard gas value, which is set by touching "↑"
Switch or "↓" Switch if there’s no Fail message.
Fail message is displayed as follows when injected standard gas value is
not normal. Fail message and Span set value are displayed alternately.
① "LOW FAIL" occurs when the difference of injected Gas value and ZERO
Calibration value is less than 1%.
② "HIGH FAIL" occurs when injected Gas value is greater than 95% of the
entire ADC input range.
③ "RNG FAIL" occurs when injected Gas value is operating as currently set
SPAN value and exceeds more than 95% of the ADC's input range. The
FAIL message is lifted when the normal operation resumes through SPAN
value adjustment.
SPAN calibration is performed after setting standard gas value and
touching “FUNC" Switch. If the automatic SPAN calibration is successful,
"SPAN SUCCESS” is displayed on LCD Display for 2 sec, and the mode is
converted to “CAL DATA” Mode.
When Zero Calibration does not succeed, "SPAN FAIL" is displayed for two
seconds, and it will switch to "CAL DATA" Mode.
It’s the Mode displaying Measuring Value after Calibration and the function
to check if the calibration was performed normally.
"CALIBRATION MODE" returns on touching “RESET" Switch.
CAL.DATA CAL.DATA CAL.DATA CAL.DATA
[ 0]
[ 0] [ 0]
[ 0]
SPAN >>
SPAN >> SPAN >>
SPAN >>
[ FAIL ] [ FAIL ] [ FAIL ] [ FAIL ]
SPAN >> SPAN >> SPAN >> SPAN >>
[SUCESS]
[SUCESS] [SUCESS]
[SUCESS]
SPAN SET SPAN SET SPAN SET SPAN SET
HIGH FAIL HIGH FAIL HIGH FAIL HIGH FAIL
SPAN SET
SPAN SET SPAN SET
SPAN SET
LOW FAIL LOW FAIL LOW FAIL LOW FAIL
SPAN SET SPAN SET SPAN SET SPAN SET
[ 50]
[ 50] [ 50]
[ 50]
[ 50] [ 50] [ 50] [ 50]
[ 50] [ 50] [ 50] [ 50]
SPAN GAS
SPAN GAS SPAN GAS
SPAN GAS
[ 50] [ 50] [ 50] [ 50]
SPAN CAL SPAN CAL SPAN CAL SPAN CAL
[ NO
[ NO [ NO
[ NO]]]]
CALIBRA. CALIBRA. CALIBRA. CALIBRA.
[SPAN] [SPAN] [SPAN] [SPAN]
CALIBRA CALIBRA CALIBRA CALIBRA....
MODE MODE MODE MODE