3600 Analyzer for O
2
Measurement—Operator’s Manual 61
3600O2.OM.E9903
Sensor Specifications
Accuracy ± 1% of reading or ± lower measurement range (see
Membrane Characteristics, below), whichever is greater
Signal drift <1% of reading between service
Operating temperature limits -5 to +100 °C
Maximum sample pressure (see Sensor Configurations, below)
Temperature compensation range -5 to 60 °C
Dimensions (length x diameter) 81.5 mm x 50 mm (diameter at sensor collar)
Weight (see Sensor Configurations, below)
Enclosure rating IP68 / NEMA4
Sensor Configurations
Model no. Materials of construction * Pressure rating Weight
3111x.xx All PEEK 20 bar 0.2 kg
3112x.xx Stainless steel & PEEK 50 bar 0.62 kg
3113x.xx Stainless steel 100 bar 0.64 kg
3114x.xx Stainless steel, very high pressure 200 bar (supplied
with certificate)
0.67 kg
* Certain sensors are also constructed with: titanium, Hastelloy
®
, Monel
®
, and Kynar
®
Membrane Characteristics
Membrane Measurement
range, dissolved
Measurement
range, gaseous
Response
time
1
Recommended
liquid flow rate
2
Recommended
linear liquid
flow rate
2935A 10 ppb–400 ppm 20 Pa–1000 kPa 150 sec. 25 ml/min. 20 cm/sec.
2952A 1 ppb–80 ppm 5 Pa–200 kPa 38 sec. 50 ml/min. 30 cm/sec.
29521A 10 ppb–400 ppm 20 Pa–1000 kPa 18 min. 25 ml/min. 60 cm/sec.
29552A 2 ppb–80 ppm 5 Pa–200 kPa 90 sec. 50 ml/min. 30 cm/sec.
2956A 0.1 ppb–20 ppm 0.25 Pa–50 kPa 7.2 sec. 180 ml/min. 200 cm/sec.
2958A 1 ppb–40 ppm 2 Pa–100 kPa 9.5 sec. 120 ml/min. 100 cm/sec.
2995A 50 ppb–2000 ppm 100 Pa–5000
kPa
80 sec. 5 ml/min. 5 cm/sec.
Recommended flow rate for gas phase measurements: 0.01–3 l/minute.
1
Response time for 90% change at 25°C
2
Liquid flow through 32001 flow chamber, with protection cap, without a stainless steel grill
Expected Sensor Current
Membrane Expected
current, in
air at 25°C
Expected
current, in
pure O
2
Minimum
expected
current, in
pure O
2
Maximum
expected
current, in
pure O
2
O
2
consumption
in O
2
saturated
water at 25°C
2935A 0.9 µA 4.71 µA 1.4 µA 8.0 µA 1.499 µg/hour
2952A 5.4 µA 27 µA 8.1 µA 45.9 µA 37.38 µg/hour
29521A 0.7 µA 3.75 µA 1.1 µA 6.4 µA 7.466 µg/hour
29552A 8 µA 40 µA 12 µA 68 µA 14.929 µg/hour
2956A 26.4 µA 132 µA 39.6 µA 224.4 µA 1.193 µg/hour
2958A 9.4 µA 47 µA 14.1 µA 79.9 µA 3.59 µg/hour
2995A 0.2 µA 0.9 µA 0.3 µA 1.5 µA 0.298 µg/hour
Note: Actual current should not exceed 35 µA for oxygen sensors.
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