Service manual

Electrical Service Manual V4.0
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APPENDIX A
APPENDIX A
METERS
Meters come in varius style and configurations. They come in both analog (with a needle
type indicator) and digital (with a digital readout). DO NOT use an analog meter on the
controll systems of the machine or you can destroy the controller instantaneously. We re-
comened a high quality non auto ranging “High Imedance” Multi-Meter with an integral DC
AMP clamp such as the Fluke 336. As a basic rule of thumb do not use a meter that cost
less than $50.00 as these meters can also damage our controllers and are not accurate.
The different functions and ranges of a meter are displpayed on the meter controlls with
icon. A indicator of these icons is as folows.
V~ Volts AC - This setting is used to measure Alternaing current like the electricity
that is in wall outlets. Folllow proper safet precautions when measur
ing and voltage from a wall outlet!
V Volts DC This setting is used to measure “Direct Current” such is the type we
use on our machines that comes from batteries.
Ω Ohms This setting is used to measure resistance is a circut. Some meters
have a number of different ranges you can select. They are described
below.
200 200 Ohms - Most suitable for our machines
2k 2,000 Ohms - For fine testing of our machines
20k 20,000 Ohms - Too sensitive for our machines
200k 200,000 Ohms - Too sensitive for our machines
Continuity Test This feature sounds an audiable tone when there is less than 30
ohms of resistance between the probes.
Diode Test This setting is used to test diodes for proper operation
A~ Amps - AC This setting is used to measure AC amp flow through a circuit.
A Amps - DC This setting is used to measure DC amp flow through a circuit.
mA~ Miliamps - AC This setting is used to measure AC milliamp flow through a
circuit.
mA Miliamps -DC This setting is used to measure DC milliamp flow through a circuit.