
Telaire 7001 CO2and Temperature Monitor Page 3
Calibration (CO2)
IMPORTANT: The sensor has been factory calibrated and
should be recalibrated once every 12 months,
using either a zero concentration gas or a gas
with a specified concentration of CO2. For the
most accurate field calibration Amphenol
Advanced Sensors recommends purchasing a
Telaire calibration kit, PN 2075.
Sensor drift usually occurs at the zero
reference point. The manual calibration
process allows the user to perform a one point
calibration based on ambient levels or by
flowing a gas of a known concentration
through the sensor. This process will adjust the
zero offset of the sensor and will provide an
accurate calibration. If a two point calibration
is required, the calibration kit should be used.
To calibrate manually, complete the following
steps:
1. The calibration procedure will last approximately 15 minutes.
Before performing the calibration procedure, remove the battery
cover to access the calibration activation switch. Connect the
supplied AC adapter to the back of the sensor or ensure new
batteries are installed.
2. Power up the sensor and wait for the warm-up to end.
3. Verify the elevation correction has been set. Refer to the procedure
outlined in“Elevation Correction” on page 2.
4. If you are calibrating to ambient conditions, make sure the sensor is
displaying a stable reading. Avoid breathing in the area of the
monitor. If you are flowing gas to the calibration port of the sensor,
allow the gas to flow for at least 10 minutes before initiating
calibration.
5. Press the Mode button twice. The calibration mode will begin
blinking.
6. Press Enter.
7. Use the Up/Down button to adjust reading to the current ambient
conditions or concentration for the gas being used. Pressing the
button once will change the readings in increments of 10 ppm. To
increase the speed, press and hold the button.
Note: For best accuracy, a reference or known concentration of
CO2 should be used when adjusting the reading. Bottled
nitrogen can be used to provide a zero concentration gas.
8. Locate the push button on the back side of the unit (under the battery
cover, in the small round hole to the right of the connector jack).
Using a small pointed object, depress and hold the switch for 5
seconds. CALIBRATION will begin to blink.
9. Press Enter.
10.Calibration inProgress will begin to blink. At this point the unit will
program itself based on the CO2 value that was entered in step 7
above. The calibration process will take approximately 5 minutes.
11. When the calibration is completed, the display will return to the
steady Calibration mode. Press Enter to return to the normal
operation mode.
Temperature Adjustment
Use this procedure to adjust the temperature output when you wish to
have the temperature output match a reference sensor. The accuracy of a
field adjustment is dependent upon the stability of the environment in
which the procedure is performed and upon the accuracy of the reference
sensor.
Adjust the temperature output as follows:
1. Connect the supplied AC adapter to the back of the sensor. If you do
not have the AC adapter, new batteries should be used.
2. Power up the sensor and place in a stable environment, free of drafts
or temperature changes. Wait 30 minutes for the unit to fully
stabilized in the operating environment. Do not hold the unit in your
hand during this period. Press the mode button until the blinking
word TEMPERATURE appears.
3. Press Enter. Both the word TEMPERATURE and the numeric
temperature display will begin blinking in unison.
4. Use the Up/Down button to adjust the temperature reading to match
the reference.
5. Press Enter. The temperature offset is immediately adjusted, the
blinking stops, and the unit is now in normal operating mode.
Accessories
The following accessories are provided with the Telaire 7001 CO2 /
Temperature Monitor:
1. CO2View™ Real-Time Graphing/Calibration Software 2080 - This
software allows the Telaire 7001 Monitor to log directly to a
Windows compatible PC and graph concentrations in real time
(includes RS232 cable). The software also includes an interface that
allows the user to perform a zero and span calibration on the sensor.
2. HOBO®Data-Logger Kit CO2- Temp & RH 2077 - This is a small
datalogger which is mounted on the back of the monitor. It records
CO2, Temp, and Relative Humidity. It has the capacity of storing
over 7,900 data points and samples at a user adjustable time interval.
It also includes the graphing software.
3. 2070Datalogging Cable - This cable connects the monitor to a third
party devices. It includes two leads for the CO2 and temperature
outputs.
4. Calibration Kit 2075 - This kit includes the necessary equipment to
perform zero calibration.