Snap-On ACT925, Operator'S Manual

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ACT925 Operators Manual | 6
ACT925 Operators Manual | Version 1.0 | Nov. 2019
Snap-on Tools
Maintenance
Install
Batteries:
Push in and twist battery cover quarter turn counter clockwise to remove
battery cover. Always insert all four batteries into the battery compartment
in the same direction. Note the polarity mark on the inside of the battery
compartment for proper battery orientation. Line up arrows and push in
and turn battery cover clockwise to install battery cover as shown in figure
above. Replace batteries when the display shows the message REPLACE
BATTERIES.
Sensor & Sensor Filter:
Replace Filter:
Unscrew sensor tip as shown to replace filter. Replace
filter when it becomes visible dirty or when the display shows “REPLACE
SENSOR FILTER”. The ACT925 will keep track of the number of hours of
usage and advise the user when it is time to replace it.
Replace Sensor: Remove sensor by pulling out of socket. Install the new
sensor by aligning the Keyway notch in sensor cover with the raised
keyway on sensor socket holder (see figure below).
Note: Do not force sensor into socket. Misalignment can
damage the sensor pins.
Push straight on (do not twist)
to install
sensor Keyway
alignment
Unscrew tip to
replace filter
Filter
Pull straight out (do not twist) to remove sensor
Important: The instrument’s software is designed to alert the user if the sensor is dislodged or
defective. If the sensor is not fully inserted into the six-pin socket, or if it is defective, the
instrument will not come out of the “Warm Up” mode for proper operation when the power
button is turned on. Additionally, if the instrument becomes unstable during its operation, it is
an indication that the sensor may be defective.
Note: If the leak detector has been out of use for an extended period, weeks or months,
the following action is recommended. Power on the instrument and allow it to come
out of Warm up, and then run it with the sensitivity level in the (Hi) high position for
several minutes before testing it with the Leak Test Vial. This action will guarantee that
the sensor is fully conditioned for maximum response to refrigerant gas.
Install batteries: