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For voltage testing, proceed as follows:
- Remove all measuring cables from the measuring device.
- Turn the measuring device on and switch the rotary switch (5) to position "°C EF".
Press the "SELECT" button.
- "EF" appears on the display. The bar display now works as an AC voltage indica-
tor from 50 to 400 Volt. At the same time, a beeper signals the voltage extent in 4
stages.
- In this measuring range, the top side of the measuring device's casing is the
detector surface. Guide the insulated, charged conductor over the casing. The bar
graph displays the voltage value.
l) DC Loop Current Measuring in Percent
This measuring range serve to display a loop current in percent.
The measuring range is from 4 mA = 0% to 20 mA = 100%.
For measuring the loop current, proceed as follows:
- Set the range selection switch (5) to position "Hz%".
- Connect the black measuring cable with the COM
socket (7) and the red measuring cable with the
mA/% socket (8).
- Press the button "SELECT".
- Now connect the two measuring tips in line with the
measuring object (battery, circuit, etc.). The respec-
tive polarity of the measuring value is displayed
together with the current measuring value on the dis-
play (1).
Auto-Power-OFF Function
In order not to reduce the life span of the battery unnecessarily, the device features
an automatic power-off function. The measuring device turns off if no button is
pressed for 30 minutes or if the rotary switch was not operated. By simply pressing
any button (except for "POWER" and "Low imp. 200k), you can turn the measuring
device back on. The last displayed measuring value is preserved in HOLD mode.
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h) Temperature Measuring
Attention!
Do not exceed the maximum admissible input values under any
circumstances! Do not touch any circuits or circuit parts if these
carry voltages in excess of 25 V ACrms or 35 V DC!
Temperature measurements can only be performed at the connection sockets (6) = +
and (7) = - and only with K-type thermal sensors. Use the multi-purpose plug for con-
necting the thermal sensor and observe the correct polarity.
The temperatures may only be applied at the sensor. The measuring device is only
specified at an ambient temperature of 23°C (+/- 5°C) (guaranteed accuracy).
For measuring temperatures, proceed as follows:
- Remove all measuring cables from the multimeter and set the range selection
switch (5) to position "°C".
- Insert the enclosed multi-purpose plug into the sockets (6) and (7) and observe the
right polarity.
- Now plug the plug of the K-type thermal sensor into the multi-purpose plug and
observe the right polarity (small contact tab = +). The temperature is now displayed
in "°C" (= Celsius/Centigrade).
i) Current Measuring in the µA and mA Range
Current measuring up to 400 µA is possible in the µA measuring range and up to 400
mA in the mA measuring range. Both current measuring ranges are protected
against overload.
In the AC range, the measuring value is measured as True RMS.
