CI-340 Operation Manual
CID Bio-Science
1554 NE 3
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Camas, WA 98607, USA
Phone: +1 (360) 833-8835
Fax: +1 (360) 833-1914
[email protected]
www.cid-inc.com
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5. Instrument will display “Warming Up” and then begin counting down. Wait.
6. Once counted down, the instrument will display “START to set Zero, else EXIT”
a. Press start/enter to set the CO2 zero
b. “Use 0 ppm CO2 gas, Press START/ENTER”
c. Press start/enter
d. “Setting 0 in 60 Seconds” will display and the instrument
will count down
At this point, the CO2 concentration of the gas passing the analyzer is taken as 0 ppm and the sensor is
calibrated to read this level as 0. Therefore, if the gas is not 0 ppm or hasn’t been allowed enough time
to run through and completely clear the system, the calibration can skew the instrument further.
7. After the CO2 zero is set, the instrument will display “Use known CO2 gas, Press START/ENTER”
8. To only calibrate the CO2 zero, press EXIT and you are done. To continue on and calibrate the CO2
span, hit start/enter.
9. If you pressed start/enter: connect a standard CO2 gas with a known concentration (Fig.3) and press
start/enter
a. The unit will display “Concentration: ? ppm” Enter the CO2 concentration of the standard gas
you are using (acceptable ranges: 200-1000 ppm CO2)
b. Press start/enter
c. The instrument will count down from 60 seconds and set the CO2 span
d. Press start/enter to save
10. The display will return to the original “ENTER to select Calibrate CO2” screen
To verify a successful calibration, take a reading of a known gas. The instrument should read with an
accuracy of < ±2%.
H2O Zero and H2O Span Procedure
Tools required: CI-340, Silica gel external conditioning tube, filter, hose barbs, a H20 standard of known
partial pressure, a t-junction, and a flow regulator.
1.
Power on the instrument
2.
Connect the silica gel to the instrument.
3.
Use the up/down arrow to navigate the menu to Calibrate H2O
Summary of Contents for CI-340
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