Rev 1.4 09/13/16
13
APPENDIX A
ANALOG OUTPUT DATA TRANSLATION
**WARNING**
ANALOG OUTPUT IS A DRIVEN SIGNAL - DO NOT CONNECT ANY WIRE WITH VOLTAGE OR
CURRENT TO ANALOG OUTPUT TERMINALS
The Analog Output is a linear signal between 0% and 90% of full scale; therefore, the values of a
given sensor may be accurately determined by graphing the two display readings and their voltage
values as a straight line through the two points.
Trim analog outputs by entering TEST mode (See
TESTING
) and turning potentiometers on AN 1
thru AN 4 (see Figure 2 Upper Circuit Board) until output measures 5.0 or 10.0 VDC as required.
CMOS VALUES
PPM
Vout (
V
)
Vout (
V
)
(1000 Span)
(R123)
0-5V
0-10V
FAULT
0.00
0.00
0
0
0.50
1.00
100
30
0.99
1.99
500
150
2.96
5.92
900
270
4.93
9.86
1000
300
5.00
10.00
OFFSCALE
5.00
10.00
OXYGEN VALUES
%O2
Vout (
V
)
0-5V
Vout (
V
)
0-10V
FAULT
0.00
0.00
10.0
2.29
4.59
15.0
3.19
6.38
16.0
3.37
6.74
19.1
3.92
7.85
19.5
4.00
8.00
20.9
4.25
8.49
21
4.26
8.53
25
4.99
9.99
OFFSCALE
5.00
10.00