Teledyne 3020M - Explosion proof paramagnetic oxygen analyzer - Manual (Page 28)

3 Installation Model 3020M
3-6 Teledyne Analytical Instruments
Table 3-1: Analog Concentration Output—Example
Voltage Signal Current Signal
% O
2
Output (V dc) Output (mA dc)
0 0.0 4.0
1 0.1 5.6
2 0.2 7.2
3 0.3 8.8
4 0.4 10.4
5 0.5 12.0
6 0.6 13.6
7 0.7 15.2
8 0.8 16.8
9 0.9 18.4
10 1.0 20.0
To provide an indication of the range, a second pair of analog output
terminals are used. They generate a steady preset voltage (or current when
using the current outputs) to represent a particular range. Table 3-2 gives the
range ID output for each analysis range.
Table 3-2: Analog Range ID Output—Example
Range Voltage (V) Current (mA)
LO 0.25 8
MED 0.50 12
HI 0.75 16
0-25% Non Programmable 1.00 20
NOTE: Impendance across 4-20mA output should not exceed 1000
ohms. Note polarity of terminals when wiring to the analog
outputs. Do not short 0-1VDC output for long period of time,
or damage may occur to analyzer.
CAUTION: Voltage may be present on alarm contacts when line power
is disconnected.