Resistance Measurement; Continuity Check - Monacor MT-200 Manual De Instrucciones

3) Read the measuring value on the black scale "DC". With nega-
GB
tive deflection of the pointer (to the left) the polarity is not cor-
rect: the test lead tips must be changed at the measuring points.

5.3 Resistance measurement

By no means measure within a circuit if it carries a voltage!
Always measure a resistor separately, otherwise the measure-
ment is wrong. For this it must be soldered out of the circuit, if
necessary.
1) The red test lead must be connected to the jack "
2) Set the range switch (1) to one of the ranges "OHMS".
3) Check the 0 Ω calibration in the selected ohm range: with short-
circuited test lead tips 0 Ω must be shown on the green scale; if
necessary, adjust the scale pointer to 0 Ω with the adjusting
knob "OHMS ADJUST" (8). Then an exact ohm measurement
can be carried out.
4) Hold the test lead tips at the resistor resp. at the respective
measuring points.
Notes:
a. Instead of short-circuiting the test lead tips, with model MT-300
also the button "0Ω CAL. SW" (2) can be kept pressed. In the
range "X 1", however, the short-circuiting of the test lead tips is still
recommended to compensate for the resistance of the test leads.
b. If the pointer cannot be set to 0 Ω any more during the 0 Ω cali-
bration, both 1.5 V batteries must be replaced. With model
MT-300 the 9 V battery must additionally be replaced if a cali-
bration in the range "X 10K" is not possible any more. See chap-
ter 6 "Replacing of Batteries or Fuse".

5.4 Continuity check

By no means measure within a circuit if it carries a voltage!
1) The red test lead must be connected to jack "
2) Set the range switch (1) to position
3) Hold the test lead tips at the corresponding measuring points. In
case of a resistance below approx. 50 Ω the buzzer will sound.
Note: If the continuity buzzer does not sound with short-circuited
test lead tips, check the fuse and the batteries and, if necessary,
replace them (see chapter 6 "Replacing of Batteries or Fuse").
16
V.Ω.A" (10).
V.Ω.A" (10).
.