Teledyne 3000TA-XLEU - Trace oxygen analyzer - Manual (Page 40)

Installation 3000TA-XL-EU
Teledyne Analytical Instruments 24
 0–1 V DC % of Range: Voltage rises linearly with increasing
oxygen, from 0 V at 0 ppm to 1 V at full
scale ppm. (Full scale = 100% of
programmable range.)
 0–1 VDC Range ID: 0.25 V = Low Range
0.5 V = Medium Range
0.75 V = High Range
1 V = Air Cal Range.
 4–20 mA DC % Range: Current increases linearly with increasing
oxygen, from 4 mA at 0 ppm to 20 mA at
full scale ppm. (Full scale = 100% of
programmable range)
 4–20 mA DC Range ID: 8 mA = Low Range
12 mA = Medium Range
16 mA = High Range
20 mA = Air Cal Range.
Table 3-1: Analog Output Connections
Pin Function
3 + Range ID, 4-20 mA, floating
4 – Range ID, 4-20 mA, floating
5 + % Range, 4-20 mA, floating
6 – % Range, 4-20 mA, floating
8 + Range ID, 0-1 VDC
23 – Range ID, 0-1 VDC, negative ground
24 + % Range, 0-1 VDC
7 – % Range, 0-1 VDC, negative ground
3.3.2.2.2 Alarm Relays
The nine alarm-circuit connector pins connect to the internal alarm
relay contacts. Each set of three pins provides one set of Form C relay
contacts. Each relay has both normally open and normally closed contact
connections. The contact connections are shown in Table 3-2. They are
capable of switching up to 3 amperes at 250 V ac into a resistive load.
The connectors are: