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3 Installation | Model 3020T | |
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Table
| Voltage Signal | Current Signal |
ppm O2 | Output (V dc) | Output (mA dc) |
0 | 0.0 | 4.0 |
10 | 0.1 | 5.6 |
20 | 0.2 | 7.2 |
30 | 0.3 | 8.8 |
40 | 0.4 | 10.4 |
50 | 0.5 | 12.0 |
60 | 0.6 | 13.6 |
70 | 0.7 | 15.2 |
80 | 0.8 | 16.8 |
90 | 0.9 | 18.4 |
100 | 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
Table
Range | Voltage (V) | Current (mA) |
LO | 0.25 | 8 |
MED | 0.50 | 12 |
HI | 0.75 | 16 |
CAL | 1.00 | 20 |
3.3.4 Alarm Relays
There are three
(under RELAY OUTPUTS) for making connections to internal alarm relay contacts. Each provides a set of Form C contacts for each type of alarm. Each has both normally open and normally closed contact connections. The contact connections are indicated by diagrams on the connector panel. They are capable of switching up to 3 amperes at 250 V ac into a resistive load. See Figure
Teledyne Analytical Instruments |