CHAPTER 2 OPERATING INSTRUCTIONS - TM-11-6665-245-120013

TM 11-6665-245-12

CHAPTER 2

OPERATING INSTRUCTIONS

2-1. Operator Controls (Figure 2-1)

Refer to Table 2-1 for operator controls and indicators.

Table 2-1.

Operator's Controls and Indicators

CONTROL, INDICATOR, OR

FUNCTION

CONNECTOR

Indicates battery condition or counts per minutes in four ranges depen-

Indicating Meter

ding on selector switch position.

Selector Switch

Turns radiacmeter on and off. Changes internal circuits and indicating

meter to check batteries and measure alpha radiation as follows:

(6 position rotary switch)

Meter Indication

Sw. Pos.

Radiacmeter is off (all other positions: equipment is

OFF

on).

Batteries are good if needles in BATT area of meter

BATT

scale.

Alpha radiation is measured from .0 to 1 million counts

per minute (CPM).

Same as position 1M except that measurement range

100K

is 0 to 100,000 counts per minute (CPM).

Same as position 1M except that measurement range

10K

is 0 to 10,000 counts per minute (CPM).

Same as position 1M except that measurement range

is 0 to 1,000 counts per minute (CPM).

Meter Reset (momentary

Reset indicating meter rapidly to zero.

push button switch)

Applies battery power to small lamp inside indicating meter to illuminate

Light Switch (momentary

indicating meter face.

push button switch)

Headphone Connector

Used to connect CPM electrical signal to earphones.

Change 2

2-1