TM 5-3610-285-14
(c)
Tighten wingnuts on mounting bolts holding safelight in place.
c.
Contact Printing Lamp and Timer/Power Supply Control Box. Refer to Chapter 6, Contact Vacuum Frame,
paragraph 6-6.
d.
Mason-Type Psychrometer.
NOTE
Be sure psychrometer is not close to fan, heater, open door, or ventilation duct.
(1)
Check that water level in cistern is halfway between brackets.
(2)
Add distilled water to saturate wick and fill cistern when necessary.
(3)
Mount psychrometer on hook on wall.
(4)
Wait five minutes before recording WET and DRY bulb readings.
10-16