Hach-Lange ORBISPHERE 31xxx Basic User Manual - Manual (Page 5)

Specification
Membrane
2956A
Membrane
2958A
Membrane
29552A
Membrane
2952A
Recommended minimum linear flow
rate
2 [cm/sec]
200 100 30 30
Recommended gaseous flow rate
[L/min]
0.1 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
Oxygen sensors (table 2)
Specification Membrane 2935A Membrane 29521A Membrane 2995A
Recommended applications
Saturated to super
saturated levels
Saturated to super
saturated levels
In line hot wort (up to
70°C)
Material Halar ® Tefzel ® Tedlar ®
Thickness [μm] 25 125 12.5
Calibration gas Air / Pure O
2
Air / Pure O
2
Pure O
2
Dissolved measurement range 0 ppb to 400 ppm 0 ppb to 400 ppm 0 ppb to 2000 ppm
Gaseous measurement range 0 Pa to 1000 kPa 0 Pa to 1000 kPa 0 Pa to 5000 kPa
Accuracy
The greater of ±1% of
reading or ± 10 ppb, or
± 20 Pa
The greater of ±1% of
reading or ± 10 ppb, or
± 20 Pa
The greater of ±1% of
reading or ± 50 ppb, or
± 100 Pa
Integrated radiation dose limit N/A 10 8 10 8
Expected current in air @ 1 bar 25°C
[μA]
0.9 0.7 0.2
Expected current in pure O
2
[μA] 4.7 3.8 0.9
O
2
consumption in O
2
saturated water
at 25°C [μg/hour]
1.4 1.3 0.3
Temperature compensation range -5 to 60°C
Temperature measuring range -5 to 100° C
Response time 1 2.5 minutes 18 minutes 80 seconds
Recommended minimum liquid flow
rate
2 [mL/min]
25 25 5
Recommended minimum linear flow
rate
2 [cm/sec]
20 60 5
Recommended gaseous flow rate
[L/min]
0.1 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
Ozone sensors
Specification Membrane 2956A Membrane 29552A
Recommended applications Trace measurement High concentration (> 1 mg/L)
Material PFA PTFE
Thickness [μm] 25 50
English 5