Accessories; General Functions - Forch F73 Bedienungsanleitung

Press the "REL" key, you can measure the relative value and 'REL' sign will appears on the
LCD display in the relative mode.
What is meant by relative value? Press the "REL" key, the meter make the first measured
value into a reference value (You must be decide a reference value as the input signal.), and
the meter store the displayed reading as a reference value.
The relative measured value that displayed in LCD is achieved by subtracting a reference
value from the present reading value.
Vx - Vref=Vdisplay
This key acts with trigger. Press "Hz/Duty " key when frequency mode is in operation,
the meter will switch to duty cycle measurement mode. Press this key again to switch to
frequency measurement mode also.
2.4 Terminals
See Table 6 indicated for information about the terminals.
Return terminal for all measurements. (Receiving the black test lead or the "com" plug of
the special multi-function socket)
Input for voltage, resistance,capacitor,frequency, diode and continuity measurements.
(Receiving the red test lead).
Input for Temperature, hFE and 0.1μA to 400mA current measurements. (Receiving the red
test lead or the "+" plug of the special multi-function socket)
Input for 400mA to 10A current measurements. (Receiving the red test lead)

2.5 Accessories

Delivered with the multimeter:
User's manual
Test leads
Carry case
"K" type bead Thermocouple
Special Multi-function socket
3. FUNCTION DESCRIPTION

3.1 General Functions

3.1.1 DATA HOLD mode
Data Hold mode makes the meter stop updating the display. Data Hold function can be
cancelled by changing the measurement mode, or push HOLD key again.
To enter and exit the Data Hold mode:
1. Press HOLD key. Fixes the display on the current value, H is displayed.
2. A second short press returns the meter to normal mode.
One piece
One piece
One piece
One piece
One piece