Fluke 975CK Bedienungsanleitung
975CK English Instruction Sheet
Page 1
®
975CK
Gas Sensor Calibration Kit
Instruction Sheet
Calibration
Calibration due dates are tracked using the Meter’s clock and
stored in non-volatile memory. Due dates can be configured by
the user from one to 365 days. When the Meter reaches its
calibration due date, it alerts the user but will continue to operate.
The Meter’s CO and CO2sensors can be calibrated by the user
or returned to Fluke for service. See “Contacting Fluke”. The
recommended calibration interval is 1 month for CO and 1 year
for CO2.
Gas canisters are available as an accessory allowing the user to
calibrate the CO and CO2sensors.
Install the calibration cap and attach the hose to the correct gas
canister; mixed CO and CO2for calibration gas, Nitrogen for
zeroing gas when calibrating CO2. See Figure 1
Note
Calibration gas is applied at the rate of ½ liter/minute for
2 minutes.
F1 F1
VELOCITY
PROBE
F1
eha001.eps
Calibration Connections
PN 2768489
October 2006
© 2006 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.
975CK English Instruction Sheet
Page 2
Calibrating the CO and CO2 Sensors
Calibrate the CO and CO2sensors together, or separately.
To simultaneously calibrate both sensors,
1. If not already in calibration mode, press L, R, and
Ssimultaneously for 3 seconds to enter calibration mode.
2. Press 1[Yes] to initiate the calibration procedure.
3. Press 3[BOTH].
The Meter display reads:
Calibration Procedure
Apply Nitrogen…
4. Apply ½ liter/minute of nitrogen for 2 minutes. Press
3[Cancel] to exit calibration.
5. When sensor zero is complete, remove the nitrogen and
press 2[OK] or 3[Cancel] to exit calibration.
The Meter displays:
Apply CO Calgas concentration…
6. Enter the concentration amount using 1[DOWN] and
2[UP] to change the entry and 3[ENTER]to store it.
7. Apply the calibration gas mixture of CO and CO2. Press
2[OK] or 3[Cancel] to exit calibration.
8. When finished, remove gas and press [OK]. Enter the time
to next calibration date. Use 1[DOWN] and 2[UP] to
change the number and 3[ENTER]to store the number.
The calibration procedure is complete.
Calibrating the CO Sensor
To calibrate the CO sensor:
1. With the calibration cap on, press L, R, and S
simultaneously for 3 seconds to enter calibration mode.
2. Press 1 [Yes] to initiate the calibration procedure or
press 3[Cancel] to exit calibration mode.
3. Press 1[CO]. The Meter zeros the CO sensor. If desired,
press 3[Cancel] to abort Meter calibration.
4. Use 1[DOWN] and 2[UP] to change the gas
concentration (ppm). Press 3[ENTER]to enter the
concentration level.
975CK English Instruction Sheet
Page 3
5. The Meter prompts to apply the CAL Gas. Attach the mixed
CO and CO2calibration gas canister to the Meter via the
supplied hose or press 3[SKIP] to exit.
6. The Meter calibrates the CO sensor. Press 3to cancel.
When finished, remove gas and press 3[OK]. Enter the
time to next calibration date. Use 1[DOWN] and 2[UP]
to change the number and 3[ENTER]to store the number.
Note
When either CO or CO2sensors are calibrated, the
calibration date is reset by the user.
CO calibration is now complete and the Meter exits calibration
mode.
Calibrating the CO2Sensor
To calibrate the CO2sensor:
1. If not already in calibration mode, with the calibration cap on,
press L, R, and Ssimultaneously for 3 seconds to
enter calibration mode.
2. Press 1[Yes] to initiate the calibration procedure or
press 3[Cancel] to exit calibration mode.
3. Press 2[CO2].
4. Specify one-point or two-point calibration methods. The one-
point method uses CAL gas only. The two-point method
uses CAL gas and also Neutral gas (Nitrogen).
If one-point is chosen:
1. Use 1[DOWN] and 2[UP] to choose the CAL gas
concentration.
2. Press 3[ENTER] to enter the concentration.
3. Apply the CAL gas and press 2[OK], press 3[SKIP] to
exit calibration mode. The Meter will now calibrate the CO2
sensor for 2 minutes. press 3[Cancel] to exit calibration
mode If calibration fails, repeat the procedure. If it fails a
second time, have the Meter serviced.
4. The Meter finishes the procedure then prompts the user to
enter the time until the next calibration. Enter the amount
using 1[DOWN] and 2[UP] to change the number and
3[ENTER] to store the number.
If two-point is chosen:
1. Apply the neutral gas (Nitrogen) or press 3[Cancel] to
exit calibration mode.
975CK English Instruction Sheet
Page 4
2. When zeroing is complete, remove neutral gas (Nitrogen) and
press 2[OK] or 3[Cancel] to exit calibration mode.
3. Apply the CAL gas. Enter the amount using 1[DOWN]
and 2[UP] to change the number and 3[ENTER] to
store the number.
4. Apply cal gas and press 2[OK] or 3[Cancel] to exit
calibration mode.
5. The Meter finishes the procedure then prompts the user to
enter the time until the next calibration. Enter the amount
using 1[DOWN] and 2[UP] to change the number and
3[ENTER] to store the number.
CO2 sensor calibration is now complete and the Meter exits
calibration mode.
Contacting Fluke
To locate an authorized service center, visit us on the World
Wide Web at www.fluke.com or call Fluke using any of the
following numbers:
USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: +31 402-675-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
LIMITED WARRANTY AND LIMITATION OF LIABILITY
Regulators are warranted for 2 years from the date of purchase against
defects in the materials and assembly, and performance within specification.
If the regulator is considered by Fluke to be defective then Fluke will replace
the regulator at no charge. If the gas canister leaks or the gas becomes
unstable within 3 years from the manufacturing date on the canister, Fluke will
replace the canister at no charge. These warranties will not cover damage
from accident, neglect, misuse, alteration, contamination, or abnormal
conditions of operation or handling. Resellers are not authorized to extend any
other warranty on Fluke’s behalf.
To obtain warranty service, contact your nearest Fluke authorized service
center to obtain return authorization information. Regulators need to be sent to
that Service Center with a description of the problem. Fluke will not accept
return of canisters. Customers must dispose of them in accordance with the
disposal instructions on the canister.
THIS WARRANTY IS BUYER'S ONLY REMEDY. NO OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, ARE GIVEN.
FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING
FROM ANY CAUSE OR THEORY. Since some states or countries do not
allow the exclusion or limitation of an implied warranty or of incidental or
consequential damages, this limitation of liability may not apply to you.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
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