VALVE GP-RELAY 1595149 - Caterpillar

The 285-6670 Pyrometer is usually installed on the instrument panel at the factory. However, some installations are retrofitted. The 190-0398 Parts Kit contains all of the hardware that is needed for the installation.Canadian Standards Association (CSA) RequirementWhen the pyrometer is installed in a suitable enclosure, the pyrometer is designed to meet the requirements for "CLASS I, DIVISION 2, GROUP D" environments.Use the following instructions to install a pyrometer onto an instrument panel for replacement of an older pyrometer. Illustration 1 shows the dimensions of the pyrometer.
Illustration 1 g01223407
Dimensions of the 285-6670 Pyrometer Illustration 2 shows the sizes of the holes and the locations of the holes for a retrofitting.
Illustration 2 g01223436
Dimensions of the holes for mounting the pyrometerUsually, the pyrometer is mounted on a control panel. Alternatively, the pyrometer is attached to a suitable flat surface at a height that is convenient for viewing. Install the scanner so that the display is not in direct sunlight.The operational temperature range of the display is −20 to 75 °C (−4 to 167 °F).
Illustration 3 g01228252
(1) 285-6670 Pyrometer (2) 180-2959 Adapter Plate (3) 030-1193 Screw (4) 4B-4274 Washer (5) 4L-1250 Nut (not shown)A 6 mm (1/4 inch) bead of 3S-6252 Sealant is applied to the joint between scanner (1) and plate (2). The scanner is attached to the plate with three 10-32 screws (3) .A 6 mm (1/4 inch) bead of 3S-6252 Sealant is also applied to the joint between plate (2) and the mounting surface. The plate is attached to the mounting surface with four screws (3), washers (4), and nuts (5) (not shown).