Equus 3320 - Auto-Ranging DMM - Manual (Page 7)

CONTROLS AND INDICATORS
1. DCV Function: Measures DC
volts. Auto-ranging from 0 to
600 volts (10 M
Ω impedance)
2. ACV Function: Measures AC
volts. Auto-ranging from 0 to
600 volts (10 M
Ω
impedance)
3. Resistance Function:
Measures resistance. Auto-
ranging from 0 to 20M
Ω
(20,000,000 Ω ).
4. ACmA Function. Measures
AC current in milliamps. One
range: 0 to 200 milliamps.
5. DIODE Function : For
testing diodes.
6. CONTINUITY Function : Tests for continuity between
two points.
7. Volts, mA, OHMS, BAT, DIODE and CONTINUITY Input
Jack.
8. COM Input Jack: Common Input Jack.
9. DC10A Input Jack. For red test lead probe connection
when measuring high DC current (up to 10 amps only).
10. DC10A Function: Measures DC current. One range:
10Amps (DC from 0 to 10 amperes). Unfused.
11. DCmA Function: Measures DC current in Milliamps. One
range: 0 to 200 milliamps.
12. Battery Test Function: Four ranges and three LEDS (green,
yellow and red). Tests small batteries; 1.5V, 6V, 9V and 12V.
13. OFF Function: Turns unit "off" when function is selected.
14. Function/Range Selector Switch: Selects desired function
or range.
15. Liquid Crystal Display (LCD): Displays results of tests or
measurements.
Preparation and Caution Before Use
•
Inspect the digital multimeter for damage to the case. Do not
use if cracked, distorted, excessively dirty or any abnormal
condition exists.
•
Inspect the test leads for damage. Check for cracked insula-
tion, broken or damaged probes, loose or bent probe pins. Do
not use if any abnormal condition exists.
•
Set the Function/Range Selector Switch to the proper range
BEFORE taking measurements. If the range/function must
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