Sensor type
31 250 H
2
, 31260 H
2
and 31290 (purge gas N
2
)
For other purge gases, please contact your Hach
representative for specification.
31 550 N
2
, 31560 N
2
and 31590 (purge
gas CO
2
)
Specification
Membrane 29561A
Membrane 2952A
Membrane 2935A
Membrane 29561A
Sample flow rate
1
(through flow
chamber)
220 mL/min
200 mL/min
100 mL/min
300 mL/min
Linear flow rate
2
(past sensor socket)
N/A
N/A
N/A
150 cm/sec
Purge gas pressure regulator
Specification
Details
Model
29089S4 (0.25 in.), 29089S6 (6 mm)
Filtration grade
40 μm
Input pressure min/max
1 bar / 16 bar
Output pressure min/max
0.5 bar / 7 bar
Standard nominal flow rate
900 Liters/minute
Condensate volume
22 cm
3
Temperature range (ambient and media)
-10°C to 60°C
Purge gas dew point
-10°C (+14°F)
Construction materials
Housing: metal; Condensate bowl: polycarbonate; Bowl guard: metal
Weight
460 g.
Dimension in cm (overall)
21 x 11.5 x 8
Expanded manual version
For additional information, refer to the expanded version of this manual, which is available on the
manufacturer's website.
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.
Safety information
N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
1
Minimal flow through an ORBISPHERE 32001 flow chamber
2
Minimal flow past an ORBISPHERE 29501 sensor socket
6
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