Fluke 2620A, 2625A user manual Setting up a Channel

Overview 2

Setting up a Channel

1.Select a channel to set up:

GDLook for the desired channel number in the right display.

2.Press the following buttons to change the setup:

FSET and FUNC come on bright, along with the present setting for measurement function.

GDCycle through the choices for measurement function.

EAccept your choice of measurement function.

For resistance measurements, continue on with steps 3 and 4. For temperature measurements, skip to step 5.

3.For dc volts, ac volts, resistance, or frequency, the instrument now provides a choice of measurement ranges. Press the buttons as follows:

GDCycle through the choices.

EAccept your choice.

For dc volts, ac volts, or frequency, the configuration is now complete for this channel. The instrument returns to Inactive Mode.

4.For resistance measurements, one more step is required to specify 2-terminal (2T) or 4-terminal (4T) measurements. Since 4-terminal measurements require two channels, 4-terminal measurements can be set up on channels 1-10 only. For each 4- terminal channel, a corresponding channel (11-20) ten numbers higher is reserved for the additional two connections required. Press the buttons as follows:

GDChoose between two terminals (2T) and four terminals (4T).

EAccept your choice. The instrument returns to Inactive Mode.

5.If you’ve specified temperature measurements, the instrument provides a choice of thermocouple types or Platinum RTD. Press the buttons as follows:

GDCycle through the thermocouple choices. "Pt" is the RTD choice.

EAccept your choice.

If you selected one of the thermocouple types, channel configuration is complete; the instrument returns to Inactive Mode.

6.If you selected "Pt" (for RTD-based measurements), use the following buttons to specify 2-terminal (2T) or 4-terminal (4T) measurements and the R0 value.

Since 4T measurements require two channels, 4-terminal measurements can be set up on channels 1-10 only. For each 4T channel, a corresponding channel (11-20) ten numbers higher is reserved for the additional two connections required.

GDChoose between two terminals (2T) and four terminals (4T).

EAccept your choice.

Now choose the R0 (ice point) value (preset to 100.00). Use Jor Hto move between digits. Use Gor Dto select a value for each digit.

EAccept your choice. Channel configuration is complete; the instrument returns to Configuration Mode.

2-13