Maintenance – TIF 3420 Differential Pressure Meter User Manual
Page 4

MAINTENANCE
REPLACING THE BATTERY
1. The thermometer must be OFF when
changing the battery. Press the to
power OFF the thermometer.
2. On the back side of the thermometer,
locate the symbol.
3. While holding the thermometer, place
your thumb on the . With gentle pres-
sure push downward and pull backward;
the battery cover will begin to open. Use
your other hand to grasp the cover and
pull downward. Lift cover up and off.
4. Lift out the 9-volt battery and disconnect
it from the connector.
5. Connect a new 9-volt battery and place it
into the battery cavity.
6. Replace the battery cover by setting it
over the battery and pushing upward until
it snaps into place.
7. Dispose of the old battery according to
local, state, and federal regulations.
Back sheet 2 of 2
Form No. 545329 Rev B January 15, 2009
© 2008 SPX
655 Eisenhower Drive
Owatonna, MN 55060
Toll Free: (800) 327-5060
Fax: (866) 287-7222
www.TIF.com
WARRANTY
This product has been produced to provide un-
limited service. Should it become inoperable after
the user has performed the recommended main-
tenance, a no charge repair or replacement will
be made to the original purchaser. This applies to
all repairable units that have not been damaged
or tampered with. The claim must be made within
One Year of the date of purchase.