ring AutoTester RMM500 - Page 8

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The measuring range is from DC 0.0V up to 50.0V maximum. If the voltage is over this limit, the display will show as below
5.4 Starter Test (12V/24V vehicles)
This test helps determine the condion of the starter motor and baery during cranking of the engine. The drop in baery voltage during the starng process
is measured, which can indicate if the baery has aged or the starter has a problem.
1. Connect test leads with baery clamps to meter
2. Turn Selector Dial to Voltage Mode (V posion)
3. Select Starter Mode then press
buon to connue
4. Display will ash as below to show clamps need connecng to baery
5. Connect red clamp to baery posive(+) and black clamp to baery negave(-)
Note:
The tester will automacally detect whether it is a 12V or 24V vehicle based on the baery voltage detected aer clamping.
6. Once connected, the baery voltage will be displayed as shown below
7. While this display is shown, start the engine unl it runs
8. The voltage drop will then be captured as shown below
Baery voltage
before cranking
Indicates the engine
needs to be cranked
unl it starts.
Good
Voltage OK
Marginal
Check Baery/Starter
Low
Check Baery/Starter
Condions LCD Status For checking the following: Acon:
12V Starter
7.0V - 8.0V 12V Cranking volt (Low) Check baery terminals or baery has aged
If baery is new, check starter and relay connecons
8.1V - 9.4V 12V Cranking volt (Marginal)
9.5V - 12.3V 12V Cranking volt (OK)
24V Starter
14.0V - 16.0V 24V Cranking volt (Low) Check baery terminals or baery has aged
If baery is new, check starter and relay connecons
16.1V - 18.9V 24V Cranking volt (Marginal)
19.0V - 24.6V 24V Cranking volt (OK)
9. To exit, press
buon will return back to the main Menu
GB
10422 RMM500 Instructions UK 140x170mm 15pp MULTI LANGUAGE.indb 8 23/08/2017 17:13