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Teledyne 3010MA - Paramagnetic oxygen analyzer, includes 0-100% range User Manual

Page 30

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Part 1 Control Unit

Model 3010MA

30

Teledyne Analytical Instruments

are given where each function is described in the paragraphs below. At the
end of this section is a complete pin-out description.

Figure 3-5: Equipment Interface Connector Pin Arrangement

Analog Outputs: There are four dc output signal pins—two pins per
output. For polarity, see Table 3-1. The outputs are:

1. 0–1VDC % of Range: Voltage rises linearly with increasing

oxygen, For 95-100% range, from 0 V at 95% O

2

to 1 V at full

scale 100% O

2

. (Full scale is 100% O

2

for all ranges.)

2. 0–1VDC Range ID: 0.25 V = Low Range, 0.5 V = Medium

Range, 0.75 V = High Range.

3. 4–20 mA dc % Range: (M option only) Current increases

linearly with increasing oxygen, from 4 mA at 0 ppm to 20 mA
at full scale. (Full scale = 100% O

2

for all ranges.)

4. 4–20 mA dc Range ID: (This option is not included unless

otherwise noted) 8 mA = Low Range, 12 mA = Medium
Range, 16 mA = High Range.

Table 3-1: Analog Output Connections

Pin Function

3

(+) Range ID, 4-20 mA, floating (special option)

4

(–) Range ID, 4-20 mA, floating (special option)

5

(+) % Range, 4-20 mA, floating

6

(–) % Range, 4-20 mA, floating

8

(+) Range ID, 0-1VDC

23

(–) Range ID, 0-1VDC, negative ground

24

(+) % Range, 0-1VDC

7

(–) % Range, 0-1VDC, negative ground

Alarm Relays: There are nine pins dedicated 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