Chapter II
40
Benchtop multimeter
Precisions
*
Programming the relative reference
The relative reference extension characters (Y...) are: D0, D1, D2, D3, D4 + G/S +CR
Each character D0 to D4 can be one of the values 30H to 39H.
D0 is the low order of the reference, and D4 is the high order.
The G/S character contains the range number (see ****), and the reference sign (add 8
in hexadecimal to the range number when the sign is negative).
$
Example
Reference to be programmed: 36.187 volts
the reference programming message contains the following 10
characters:
ASCII
2
3
:
7
8
4
6
3
:
CR
HEXA
32H
33H
3AH
37H
38H
34H
36H
33H
3AH
0DH
signifi-
cation
meas.
config.
relative reference
programmation
reference absolute value
range no. 2
volts (32H)
and
negative
sign (+8H))
**
Programming the ohm reference in dB and in resistive power
The extension characters (Y...) of the ohm reference are: D0, D1, D2, D3 + CR
Each character D0 to D3 can be one of the values 30H to 39H. Therefore the ohm
reference may be programmed from 1 ohm to 9999 ohms.
$
Example
Ohm reference to be programmed: 600
Ω
The message contains the following 8 characters:
ASCII
2
3
;
0
6
0
0
CR
HEXA
32H
33H
3BH
30H 36H
30H
30H
0DH
significa-
tion
meas.
config.
programmation
référence ohm
reference value
***
Programming the rate of timer data
The 6 timer programming extension characters (Y...) are S0, S1, M0, M1, H1CR
They represent Hours (0 to 9), Minutes (00 to 59) and Seconds (00 to 59).
Each character may be equal to 30H to 39H.
$
Example
Program timer at 7h 36 mn 42 sec
The message contains the following 8 characters:
ASCII
2
3
<
2
4
6
3
7
CR
HEXA
32H
33H
3CH 32H 34H
36H
33H
37H
0DH
signifi-
cation
meas.
config.
timer value
timer value
