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04/03/19
7. Key Functions
1) 72-13430:
SEL/REL: press this key to switch between AC and DC modes for mV , I and REL positions.
HOLD/ : Press to enter or exit data hold mode. Long press over 2 seconds to turn on/off backlight.
2) 72-13430/435/440:
HOLD/SEL: Press to enter or exit data hold mode
In continuity/diode mode, press to cycle switch between the two modes
: Press to turn on/off backlight.
8. Operations
To avoid false reading, replace the battery if the battery low power symbol appears. Also pay special attention to the warning
sign
beside the test lead jack, indication that the tested voltage or current must not exceed the values listed on device.
1. AC/DC voltage measurement (see Figure 2b)
1) Switch the dial to “V~” position.
2) Insert the black test lead into the COM jack, the red test lead into the “VΩmA” jack. Connect test leads with the load in parallel.
72-13430
72-13430/435/440:
Notes:
•
Do not measure voltage over 250Vrms, or it may expose users to electric shock and damage the device. If the range of the
voltage to be measured is unknown, select the maximum range and reduce accordingly.
•
Please pay extra attention when measuring high voltage in order to avoid electric shock.
•
Before using the device, it is suggested to measure a known voltage for verification.
2. Resistance measurement (see Figure 2b)
1) Switch the dial to “Ω” position.
2) Insert the black test lead into the COM jack, the red test lead into the “VΩmA” jack. Connect test leads with the resistor in
parallel
