Hach-Lange ORBISPHERE 31xxx Basic User Manual - Manual (Page 6)

Specification Membrane 2956A Membrane 29552A
Calibration gas Span gas or air
Dissolved measurement range 0 ppb to 50 ppm 0 ppb to 200 ppm
Gaseous measurement range 0 Pa to 10 kPa 0 Pa to 40 kPa
Accuracy
The greater of ±1% of reading (±
5% for sensors calibrated in air) or
± 5 ppb, or ±1 Pa
The greater of ±1% of reading (±
5% for sensors calibrated in air) or
± 20 ppb, or ± 4 Pa
Integrated radiation dose limit 2 x 10 4 N/A
Expected current in air @ 1 bar 25°C
[μA]
26.4 6.5
Expected current in pure gas [μA] 105 31.4
Temperature compensation range -5 to 45°C
Temperature measuring range -5 to 100° C
Response time 1 30 seconds 6 minutes
Recommended minimum liquid flow
rate
2 [mL/min]
350 3 100 3
Recommended minimum linear flow
rate
2 [cm/sec]
30 10
Recommended gaseous flow rate
[L/min]
0.01 to 3
1 Response time at 25°C for a 90% signal change
2 Liquid flow through an ORBISPHERE 32001 flow chamber, with protection cap and no grille
3 These flow rates take into account the decomposition of ozone in the tubing between the line and the flow
chamber (theoretical flow rates in the absence of decomposition would be 10 times less)
Sensor weight and dimensions
Sensor weight is from 140 to 700 grams, depending on the construction material.
Figure 1 Sensor dimensions
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
6 English