Actron CP7677 Operations Instructions download pdf (Page 7)

7

Fig. 4

Fig. 5

value of

3.87KΩ. The

actual value of

resistance is

3.87KΩ and not

4KΩ that was

measured in

the 200KΩ

range. This is

very important

because if the

manufacturer

specifications

say that the

sensor should

read 3.8-3.9KΩ

at 70°F then on

the 200KΩ

range the sensor would be defective, but

at the 20KΩ range it would test good.

Now set the multimeter to the 2KΩ range.

(See Fig. 6) The

display will indi-

cate an

overrange con-

dition because

3.87KΩ is larger

than 2KΩ.

This example

shows that by

decreasing the

range you in-

crease the ac-

curacy of your

measurement.

When you

change the

range, you

change the lo-

cation of the decimal point. This changes

Fig. 6

the accuracy of the measurement by ei-

ther increasing or decreasing the number

of digits after the decimal point.

Battery and Fuse

Replacement

Important: A 9 Volt battery must be in-

stalled before using the digital multim-

eter. (see procedure below for installa-

tion)

Battery Replacement

1. Turn multimeter OFF.

2. Remove test leads from

multimeter.

3. Remove screw from battery

cover.

4. Remove battery cover.

5. Install a new 9 Volt battery.

6. Re-assemble multimeter.

Fuse Replacement

1. Turn multimeter OFF.

2. Remove test leads from

multimeter.

3. Remove rubber holster.

4. Remove screw from battery

cover, battery cover, and battery.

5. Remove screws from back of

multimeter.

6. Remove back cover.

7. Remove fuse.

8. Replace fuse with same size and

type as originally installed.

Use a 1/4" x 1-1/4", 10A, 250V, fast

acting fuse or a 5mm x 20mm

315mA, 250V fast acting fuse.

9. Re-assemble multimeter.

1 2 3 4 5 6 7 8 9 10 11 12 ... 33 34

Comments to this Manuals

No comments