Sensor Membrane Specifications; Ozone Sensors - Hach ORBISPHERE C1100 User Manual

Technical Specifications

2.3 Sensor membrane specifications

2.3.1 Ozone sensors

Recommended applications
Material
Thickness [µm]
Calibration gas
Dissolved measurement range
Accuracy
Expected current in air
@ 1 bar 25°C [µA]
Temp. compensation range
Temp. measuring range
Response time
Recommended min. liquid flow rate
[mL/min]
Recommended min. linear flow rate
[cm/sec]
1
2
3
and the flow chamber (theoretical flow rates in the absence of decomposition would be 10 times
less)
6
Table 1 Membrane specifications - Ozone sensors
1
Response time at 25°C for a 90% signal change
Liquid flow through an ORBISPHERE 32001 flow chamber, with protection cap and no grille
These flow rates take into account the decomposition of ozone in the tubing between the line
2956A
Trace measurement
PFA
25
0 ppb to 50 ppm
The greater of ±1% of reading
(± 5% for sensors
calibrated in air)
or ± 0.4 ppb,
or ±1 Pa
25.3
25 sec.
2
3
350
2
30
29552A
High concentration (> 1 mg/l)
PTFE
50
Span gas or air
0 ppb to 200 ppm
The greater of ±1% of reading
(± 5% for sensors
calibrated in air)
or ± 20 ppb,
or ± 4 Pa
6.5
– 5 to 45° C
– 5 to 100° C
6 min.
3
100
10