CI-900 Instruction Manual 8/10/2015
1554 NE 3
rd
Ave, Camas, WA 98607, USA Phone: (360) 833-8835
sales@
cid-inc
.com
www.cid-inc.com
31
Setup Sensor
The Setup>Sensor Menu has three options,
Sensor Selection
,
Sensor Voltammetry
and
Cell
Hydration
. Sensor Selection allows the user to turn on/off the different sensors of the CI-900. After
selecting any of the menu options from the Setup>Sensor menu, the display will prompt “Are you
sure you want to continue?” Press
Enter
to continue to the selection.
Not all CI-900’s are built with all sensors, so see the Production Check Sheet at the end of the
manual to see which sensors are included in your unit. All units are equipped with a High
Resolution C
2
H
4
, ethylene sensor (PPB) and an extended range C
2
H
4
, ethylene sensor (PPM). The
C
2
H
4
PPB measures from 0-2 ppm. The C
2
H
4
PPM measures from 2-200 ppm, but is capable of
reading as low as 0 ppm. Optional sensors available for carbon dioxide are the PPM or the PCT,
which gives values in percent (%). There is also an additional sensor available for O
2
(percent
oxygen). The optional sensors are in series, meaning the gas sample will flow to the CO
2
PPM, then
CO
2
PCT sensor, then O
2
sensor. The C
2
H
4
sensors are parallel, meaning a valve changes the gas flow
between the C
2
H
4
sensors, again depending on the current concentration.
Sensor Selection:
Press the RIGHT arrow when Sensor Selection is highlighted to see the list of
sensors.
Use the UP/DOWN arrows to select the sensor to adjust and then the LEFT/RIGHT arrow
keys to switch between columns. Once in the column with the On/Off, use the UP/DOWN
arrow to turn the sensor On/Off.
Both ethylene sensors should always be turned “On” for measurements. The
firmware will control which ethylene sensor is used to measure the gas sample.
If sensors are not included in your instrument, please set them to “Off”.
If not actively using the CO
2
PPM sensor, set it to “Off” to conserve battery life.
Press SAVE to save any changes.
Press STOP to exit to the Setup Menu.
Setup
Sensor
C
2
H
4
PPB
On
C
2
H
4
PPM
On
CO
2
PPM
Off
CO
2
PCT
Off
O
2
Off
Summary of Contents for CI-900
Page 2: ......