Inter-Tel PRO-FORM 500-CX PATL41106.0 - Manual (Page 28)

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PROBLEM: The chest pulse sensor does not function properly
SOLUTION: a. If the chest pulse sensor does not function properly, see CHEST PULSE SENSOR TROUBLE-
SHOOTING on page 9.
b. If the chest pulse sensor still does not function properly, the battery
should be changed. To replace the battery, first locate the battery
cover on the back of the sensor unit. Insert a coin into the slot in the
cover, and turn the cover counterclockwise to the “open” position.
Then, remove the cover.
Next, remove the old battery from the sensor unit, and insert a new
CR 2032 battery,
with the battery oriented so the writing is on
top. Make sure that the rubber gasket is in place in the sensor unit.
Then, reinsert the battery cover and turn it to the closed position.
Battery
Rubber
Gasket
Battery Cover
b
Battery
Cover