Mastech MAS830, Инструкция по эксплуатации

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Before measuring any transistor, make sure the probe is
not connected to any circuit being measured.
Before taking the measurement of voltage with the
probe, make sure there is no element connected to the
test socket of the transistor.
Maintenance







Before removing the rear cover, disconnect the probe
from the circuit to be measured.
To protect the internal circuit, replace the fuse with one
of the same specifications:
F1 250mA / 250V
F2 10A / 250V
Don
’t use the instrument until the rear cover is placed
back and the screws are tightened.
Clean the housing of the instrument only with a wet rag
dripped with little detergent but never chemical solution.
In case of the any abnormality, stop using it and sent it
for maintenance.
Technical data
Accuracy:

% of reading 5 digits, one year warranty.
Ambient temperature: 18
℃
to 28
℃
Ambient humidity: 80%.
General features:
Maximum voltage between
terminals and earth ground CAT
Ⅱ
600V
Fuse protection F1 250mA/250V F2 10A/ 250V
Power 9V battery, NEDA 1604 or 6F22
Display 1999
Overrange Indication
“1”
Polarity indication
“-” for negative polarity
Operating Environment 0 to 40
℃
Storage temperature -10
℃
to 50
℃
.
Low battery indication
“ ”appears on the display
Size 138mm
×
69mm
×
31mm
Weight 170g.
5