ES51984
3 3/4 CAP AUTO DMM
The other combinations of FC1, FC2, FC3, and FC4 are for ADP modes. In ADP modes
, if FC5 is LOW, the minus sign on the LCD panel will not be displayed. And if KEY pin
is floating, the buzzer beeps when the input signal is overflow. The ADP mode function
is summarized below.
FC1 FC2 FC3 FC4
Mode
ADP0
ADP1
ADP2
ADP3
1
1
1
1
1
1
0
0
1
0
0
1
0
0
0
0
Note: Temperature measurement mode takes input signal from ADP pin. In temperature
measurement mode, VBAR pin is used to control the right most digit point on the
LCD panel. When VBAR is LOW, this digit point is displayed.
3. Push function
3.1 HOLD
HOLD mode makes the meter stop updating the LCD panel. This mode can be nested in
most of the special modes. Enabling HOLD function in automatic mode makes the
meter switch to manual mode, but the full scale range remains the same. HOLD function
can be cancelled by changing the measurement mode, pressing RANGE, or push HOLD
again.
3.2 Range
RANGE pin switches to and from automatic and manual mode, and while in manual
mode, changes the full scale range. The following figure shows the state transition.
1 push < 1 sec
Automatic
Mode
Manual
Mode
1 push > 1 sec
Range up
1 push < 1 sec
Measurement Mode
V(DC/AC)
Auto
VR2 – VR5
Manual
Control Range
400.0mV – 4000V
Initial Range
4.000V
VRi
VRi
VR5
→
+
→
1,
VR1
µA(DC/AC)
R1 – R2
400.0µA – 4000µA
400.0µA
R1 → R2,
R2 → R1
R1 → R2
R2 → R1
mA
(AC/DC)
R1－R2
40.00mA - 400.0mA 40.00mA
11
11/01/05
CYRUSTEK [ Cyrustek corporation ]
