11
4.1.2 Set Serial Number:
1.
In this screen the display will show the current serial number of the instrument.
2. The cursor will be blinking at the first digit of t
he “Serial Number”, make desire changes
and press ENT key to confirm.
4.1.3 Date Time Setting:
In a similar way, one can change the Date & Time.
Note:
If the displayed date & time or any of the above explained parameters are not to
be changed, one can press the
SET Key ● to escape without altering the current values.
4.2 CALIBRATION MODE:
In the menu screen, press the DOWN
Key
▼
, the instrument moves to the calibration
mode. After Successful authentication (Password
– 321), the device is ready for
calibration.
Calibration of the instrument involves two steps:
1)
Zeroing the instrument in clean air.
∆
IMPORTANT
:
The instrument should be zeroed in clean air. If you are not sure
about the air quality, it is recommended to use the air from compressed clean air
cylinders available for the purpose.
2) Applying gas of known concentration, so that the reading matches with the calibration
gas concentration.
4.2.1 Calibration Process:
1. In the calibration mode, the first page is the Zero Calibration,
“Apply Zero Gas”
Prompt
will be displayed and instrument will take samples from air for 30 seconds, continuously
showing counts and remaining sampling time on display.
2. Instrument will be zeroed only if count value is in between
50 to 999.
After zeroing
successfully ZERO CAL DONE prompt will appear otherwise ZERO CAL FAIL prompt
will be displayed.
Set Date:
DD/MM/YY
Set Time:
HH:MM:SS
Serial Number
A – XXXX (PM)
Summary of Contents for FumiSense Pro UNIPHOS-250
Page 22: ...22 11 CONCLUSION REMARKS...
