Energizer ATX612 specifications TOXIC/OXYGEN Sensor REMOVAL/ Replacement, Replacement Parts

Shorting Wire

22

WARNING: When removing a sensor from

!service, the appropriate sensor plug must be installed to ensure proper instrument operation. Toxic/O2 Sensor Plug P/N 1704-6947 Combustible Sensor Plug

P/N 1706-2647

8.4.1TOXIC/OXYGEN SENSOR REMOVAL/ REPLACEMENT

•To remove a toxic or oxygen sensor, grasp the sensor and lift it straight up. Use care to avoid bending the sensor pins.

WARNING: When removing a toxic sensor for

!storage, connect a shorting wire to the two pins as shown.

•New toxic sensors are shipped with a shorting wire attached. Remove the shorting wire from the new sensor.

•Immediately install the sensor in the instrument. Never apply pressure to the area inside of the black O-Ring seal at the top of the sensor.

8.4.2COMBUSTIBLE SENSOR REMOVAL/ REPLACEMENT

•To remove the combustible sensor, grasp the sensor and lift it straight up.

•Press the new sensor firmly into the sockets on the PC board.

8.5CHANGING THE INTERNAL FILTER

If the internal dust filter/water stop becomes blocked, a PUMP FAULT alarm will result. The filter must be replaced immediately before continuing operation. To remove and replace the internal dust filter/water stop from the instrument:

•Unscrew and remove the knurled sample inlet fitting from the instrument as shown in Figure 6.

•Grasp the dust filter/water stop from the instrument and pull straight out to remove.

•Replace the dust filter/water stop making sure that the larger diameter opening of the filter is facing inward.

•Replace the knurled sample inlet fitting.

NOTE: The ATX612 will remain in a PUMP FAULT condition if operation is attempted with the dust filter/water stop removed.

9. REPLACEMENT PARTS

The following items numbers refer to the exploded view drawing on pages 24 and 25.

ITEM PART NUMBER DESCRIPTION (QTY)

11705-8868 Main PC Board (1)

21705-6755 Display PC Board (1)

31705-9247 Interface PC Board (1)

4 1705-9031 Chassis (1)

51706-3447 Pump Assembly (1)

61705-9494 Nicad Battery Pack

or	1705-9312	Alkaline Battery Pack
7	1706-0716	Case Gasket (1)

81706-2498 Filter Housing (1)

91705-8157 Dust Filter/Water Stop (1.2 Micron) (1)

10 1705-7118 Speaker (1)

111705-8660 Speaker Gasket (1)

121705-8140 Speaker Water Barrier (1)

131706-0674 Sensor Manifold (1)

141702-8374 External Alarm Jack (1)

15	1705-0295	RFI Screen (1)
16	1706-1284	Case Top (1)
17	1705-8306	Key Pad (1)
18	1706-0500	Alarm Lens (1)
19	1705-8652	Alarm Lens Gasket (1)

Figure 6 23