Benning MM 1 Instrucciones De Servicio página 14

terminals of the BENNING MM 1 and earth ground is 600 V.
- COM terminal 
- Input terminal for V, , and µA, 
8.2.1 Voltage measurement
- Select the appropriate voltage type with the rotary switch  of the
BENNING MM 1.
- Select manual range by pressing "RANGE" button if required.
- Connect the black safety test lead to the COM-terminal  of the
BENNING MM 1.
- Connect the red safety test lead to the input terminal for V,  and µA,  of
the BENNING MM 1.
- Connect the safety test leads to the circuit measurement points and read
the measured value on the digital display  of the BENNING MM 1.
see Figure 2:
see Figure 3:
8.3 Direct current measurement
- Select the range of direct current with the rotary switch  of the
BENNING MM 1.
- Select manual range by pressing "RANGE" button if required.
- Connect the black safety test lead to the COM-terminal  of the
BENNING MM 1.
- Connect the red safety test lead to the input terminal for V, Ω, µA,  of the
BENNING MM 1.
- Connect the safety test leads to the circuit measurement points and read
the measured value on the digital display  of the BENNING MM 1.
see Figure 4:
8.4 Resistance Measurement
- Select the Ohm symbol Ω with the rotary switch  of the BENNING MM 1.
- Select manual range by pressing "RANGE" button if required.
- Connect the black safety test lead to the COM-terminal  of the
BENNING MM 1.
- Connect the red safety test lead to the input terminal for V,  and µA,  of
the BENNING MM 1.
- Connect the safety test leads to the circuit measurement points and read
the measured value on the digital display  of the BENNING MM 1.
see Figure 5:
8.5 Continuity Testing with Buzzer
- Turn the rotary switch  of the BENNING MM 1 to select the appropriate
range identified by a buzzer and diode symbol
- Connect the black safety test lead to the COM-terminal  of the
BENNING MM 1.
- Connect the red safety test lead to the input terminal for V, , µA,  of the
BENNING MM 1.
- Connect the safety test leads to the circuit measurement points. If the circuit
resistance between the COM-terminal  and the input terminal for V, Ω
and µA,  falls below 20 Ω, then the built-in buzzer in the BENNING MM 1
emits a continous tone.
- By means of the "RANGE" key, it is possible to change between the
functions continuity test and diode test.
see Figure 6:
8.6 Diode Testing
- Turn the rotary switch  of the BENNING MM 1 to select the appropriate
range identified by a buzzer and diode symbol
- Press the "RANGE" key to change to diode test function.
- Connect the black safety test lead to the COM-terminal  of the
BENNING MM 1.
- Connect the red safety test lead to the input terminal for V, Ω, µA,  of the
BENNING MM 1.
- Connect the safety test leads across the diodes and read the measured
value on the digital display  of the BENNING MM 1.
- For a typicale silicone diode tested in the forward-based direction a voltage
flow between 0,500 V and 0,900 V is displayed. A display showing"000 V"
indicates a short circuit in the diode, whereas a display showing "1,5 V"
indicates an open circuit in the diode.
- For a diode tested in the reverse-based direction the display reads "1,5 V".
If the diode is damaged, the display will show "000 V" or other values.
see Figure 7:
10/ 2004
Direct voltage measurement
Alternating voltage measurement
DC current measurement
Resistance measurement
Continuity Testing with buzzer
Diode Testing
BENNING MM 1
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