Battery Installation and Replacement:
Use any fresh 9-volt flat-pack type battery (not
supplied). To install, remove screw from each side of case and gently separate two
halves. Install 9-volt battery on snap clip, then slip into retainer (see previous drawing).
To prevent damage from battery leakage, always remove battery when storing meter for
prolonged periods.
Important Note: Always remove the battery when storing your unit for long periods.
Operating Instructions
Using the Sense Coil:
The sense coil snaps over wires and cables, as shown below. To
unlatch, squeeze the nylon carrier between thumb and forefinger--applying opposing
pressure. The coil's top section should move forward slightly. With pressure applied, lift
up to open. Position the wire or cable inside the core opening. Close the lid over the
cable, pressing down until latch clicks shut.
1
2
3
Click!
Lift
Press
Unlatch
Meter:
The
meter is scaled from 0 to 100. On the 100-mA range, readout is direct (100
= 100 mA). On the 1-A range, move the decimal point 2 places to the left (100 = 1.00 A).
To convert meter readings made on the 30 mA, 300 mA, and 3-A ranges, multiply
accordingly. For example, a reading of 85 on the 300-mA range equals 300 x .85, or 255
mA. The chart below will help you estimate readings quickly:
Meter
Range
10
3
30
0.3
20
6
60
0.6
30
9
90
0.9
40
12
120
1.2
50
15
150
1.5
60
18
180
1.8
70
21
210
2.1
80
24
240
2.4
90
27
270
2.7
100
30
300
3.0
10
20
30
40
50
60
70
80
90
100
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
30 mA
100 mA
300 mA
1 A
3 A
The <30 mA range is uncalibrated and meter readings represent a relative indication only.
It is normal, at high sensitivity, to see some residual meter reading (up to 15%).
Summary of Contents for MFJ-854
Page 5: ...Schematic Parts List ...
