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 CO
2
sensors 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 CO
2
.
Gas canisters are available as an accessory allowing the user to
calibrate the CO and CO
2
sensors.
Install the calibration cap and attach the hose to the correct gas
canister; mixed CO and CO
2
for calibration gas, Nitrogen for
zeroing gas when calibrating CO
2
. 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.
