Using The Meter; Connecting To Mains; Controls And Connections - Iso-Tech IDM 203 RMS Instruction Manual

4. Using the meter

Connecting to mains

Important : To avoid the risk of electric shock, it is essential for the earth conductor in the power cable to be linked through to
the earth conductor of the mains supply. There are no parts serviceable by the user inside the meter.
Repairs may only be made by persons qualified to do so.
WARNING : Unplug the mains supply before changing fuses. To avoid the risk of fire, fuses may only be replaced with fuses
of the same type and ratings. Fuse: 80mA/250V, quick-acting (F), 5 x 20mm.
To avoid damage to the meter, the voltage selector on the back must be set to the correct mains voltage (see below).
For mains voltages given below:
Setting of mains voltage switch
90 to 132V, 50/60Hz
198 to 264V, 50/60Hz

4.1 Controls and connections

Fig.1 shows the controls and input terminals on the front of the unit.
1. Digital display — The 31/2 digit 3999 count digital LCD display includes a 42-element analog bargraph display and has
automatic annunciators for polarity, decimal point, range overrun, store data, AC/DC, Ω/
and unit symbols.
2. Rotary function and range switch — This switch is used to select functions and measuring ranges.
3. COM Input Terminal — Input for the common potential.
4. V-Ω-Hz- Input Terminal — Input for voltage and resistance measurement, diode testing, and capacitance, frequency
and ADP measurement.
5. mA Input Terminal — Input for milliampere current measurement.
switch setting as shown:
11
, Auto, , REL. MAX. MIN.