General Information - Hach ORBISPHERE 31 Series Basic User Manual

Specification
Accuracy (sample
temperature 20-50°C within
± 5°C of calibration
temperature)
Accuracy (sample
temperature 0-50°C
independent of calibration
temperature)
Measurement cycle
(seconds)
4
Sample flow rate (through
flow chamber)
5
Linear flow rate (past
sensor socket)
Sensor weight and dimensions
Weight with external temperature adapter 1330g (±20g). Weight without external temperature
adapter 1040g (±20g).
Figure 1 Sensor dimensions
Note: Shown with external temperature adapter.

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.
3
Measurement cycle for 3624 ProBrix application is 15 seconds
4
Minimal flow through an ORBISPHERE 32001 flow chamber
5
Minimal flow past an ORBISPHERE 29501 sensor socket
31 450 CO and
2
31460 CO (purge 31560 N
2
gas N )
2
Membrane 29561A Membrane 29561A
The greater of ±1% The greater of ±2%
of reading or ±
0.006V/V, or ±
0.012g/kg, or ±
8 mbar
The greater of ±2%
The greater of ±4%
of reading or ±
0.02 V/V or ±
1 ppm or ± 0.8 mL/L
0.048g/kg or ±
14 mbar
3
22
100 mL/min
50 cm/sec
Sensor type
31 550 N and
2
31 280 H
(purge
2
gas CO )
2
Membrane
of reading or ± The greater of
0.3 ppm, or ± ±2% of reading
0.25mL/L, or ± or ± 1% H
15 mbar
of reading or ±
or ± 34 mbar
300 mL/min 200 mL/min
150 cm/sec
/D and He (clean air
2 2
purge)
Membrane
2952A 29561A
The greater of
±2% of reading
/D or ± 0.2% H
2 2
N/A N/A
60 60
500 mL/min
N/A N/A
English 5
/D
2 2