Iso-Tech IDM101, Instruction Manual

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5. Using the meter
The meter was produced and tested to comply with IEC publication 1010 "Safety requirements for electrical equipment for
measuring, monitoring and laboratory applications" and was in a reliable state when supplied.
This operating manual gives directions and warnings which are essential for the user to follow, to work safely and to ensure
the integrity of the meter.
TEST EQUIPMENT RISK ASSESSMENT (UK RECOMMENDATION)
Users of this equipment and/or their employers are reminded that Health and Safety Legislation require them to carry
out valid risk assessments of all electrical work so as to identify potential sources of electrical danger and risk of
electrical injury such as from inadvertent short circuits. Where the assessments show that the risk is significant then
the use of fused test leads constructed in accordance with the HSE guidance note GS38 ‘Electrical Test Equipment
for use by Electricians’ should be used.
5.1 Preparatory steps and directions to be followed
1. After you switch the meter on, wait for 30 seconds before you make the first measurement.
2. You must set the desired function with the rotary switch before you bring the probes into contact with the item to be
measured. Remove the probes from the item before you change the setting of the rotary switch.
3. If the meter is used in the vicinity of equipment which generates electromagnetic interference, the display may become
unstable or incorrect measurements may be displayed.
4. Keep the meter dry.
5.2 Measuring voltages
1. Plug the black lead into the "COM" input terminal of the meter and the red lead into the "V-
Ω
" input terminal.
2. Turn the function switch to the "Va.c." or "Vd.c." position.
3. Apply the probes to the source or load whose voltage is to be measured. The polarity of the red probe will be shown along
with the measurement.
3. If the measurement is higher than the range of the meter or the range which has been set manually, the internal sounder
will operate and the highest digit of the digital display flashes, while the three lower digits will go 0.