E Instruments E500 - Page 41

41
10
Calibration procedure
To perform the recalibration the following instruments are needed:
- Known concentration gas cylinder suitable for the sensor, equipped with a pressure regulator
- Flow meter
- Hose with Tee fitting to connect the cylinder to the flowmeter and to the instrument
In the following is described a recalibration example for the CO sensor.
1. Start the instrument
Keep pressed
for a few
seconds
2. Once autozero is completed press the button and select the menu Instrument→on site calib.
Insert
password
WARNING
• Make sure autozero is execute in clean air and terminates correctly.
• Do not connect the gas probe to the instrument.
• Check the battery charge level or connect the power adapter to avoid data loss
during recalibration.
OK
OK
>
>
' 1111 '
E500
S.n.:0
Fw:1.00
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AUTOZERO
60
AutoZero in
Fresh
Air
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AUTOZERO
AutoZero in Fresh
Air
T: 21.5°C
Keep
Repeat
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INSTRUMENT
►Display
On site calib.
Clock
Bluetooth
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ON SITE CALIB.
0
000
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ON SITE CALIB.
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