ES51982
3 1/2 CAP AUTO DMM
Note: 1*.The judge bit in the Status packet determines whether the unit is Celcius or
Fahrenheit.
4.2 RANGE
This packet indicates the full scale range of the meter. When the meter operates in
continuity mode, diode mode, or current (A) mode, this packet is always 0110000 since
the full scale range in these modes are fixed. The following table lists the code for each
range in each measurement mode.
Code
V
mA
µA
Auto A
2.000 A
Frequency Capacitor
Ω
0110000
0110001
0110010
0110011
0110100 200.0mV
0110101
2.000V
20.00V
200.0V
2000V
20.00mA
200.0mA
200.0µA
2000µA
200.0Ω
2.000KHz
2.000nF
20.00nF
200.0nF
20.00 A 2.000KΩ 20.00KHz
20.00KΩ 200.0KHz
200.0KΩ 2.000MHz 2.000µF
2.000MΩ 20.00MHz 20.00µF
20.00MΩ
200.0µF
2.000mF
0110110
4.3 DIGIT 3 – DIGIT 0
Digit 3 is the most significant digit on the LCD panel, and digit 0 is the least significant
digit. When the LCD panel shows OL, the serial port outputs 2000.
Digit
Code
0
1
2
3
4
5
6
7
8
9
0110000
0110001
0110010
0110011
0110100
0110101
0110110
0110111
0111000
0111001
Because the cycle time of measurement for continuity/diode mode is only 50ms, the
least significant digit may not be accurate.
4.4 STATUS
The format of this shown below. The Judge field is meaningful only when the Function
packet indicates Temperature mode. In Temperature mode, judge is 1 if the unit is ℃
and is 0 of the unit is ℉ . Sign field indicates whether the minus sign on the LCD
panel is on or off. BATT field is one of battery low condition is true. OL indicates input
overflow.
0
1
1
Judge
BIT 3
Sign
BIT 2
BATT
BIT1
OL
BIT 0
BIT 6
BIT 5
BIT 4
14
11/01/05
CYRUSTEK [ Cyrustek corporation ]
