Hach-lange ORBISPHERE 31xxx Installation and Maintenance Manuel d'utilisateur télécharger pdf (Page 13)

11

Technical Specifications

2.4.2 Oxygen sensors (Table 1)

Table 4 Membrane specifications - Oxygen sensors (1)

Membrane Model 2956A 2958A 29552A 2952A

Recommended

applications

Corrosion control,

De-aerated water

Beverage,

Lab. applications

In line wort,

Air/O

2

injection,

Sewage treatment

Corrosion control,

In line beverage,

De-aerated water

Material PFA Tefzel

®

PTFE Tefzel

®

Thickness [µm] 25 12.5 50 25

Calibration gas Air Air Air Air / Pure O

2

Dissolved measurement

range

0 ppb to

20 ppm

0 ppb to

40 ppm

0 ppb to

80 ppm

0 ppb to

80 ppm

Gaseous measurement

range

0 Pa to

50 kPa

0 Pa to

100 kPa

0 Pa to

200 kPa

0 Pa to

200 kPa

Accuracy

The greater of ±1%

of reading

or ± 0.1 ppb

1

,

or ± 1 ppb

2

,

or ± 0.25 Pa

The greater of ±1%

of reading

or ± 1 ppb,

or ± 2 Pa

The greater of ±1%

of reading

or ± 2 ppb,

or ± 5 Pa

The greater of ±1%

of reading

or ± 2 ppb,

or ± 5 Pa

1

Accuracy is ± 0.1 ppb for 410, 510, 362x, 360x and 3655 instruments

2

Accuracy is ± 1 ppb for 366x and 3650 instruments

Integrated radiation dose

limit [rads]

2 x 10

4

10

8

N/A 10

8

Expected current in air @

1 bar 25°C [µA]

26.4 9.4 6.3 5.4

Expected current in pure

O

2

[µA]

132 47 31.4 27

O

2

consumption in O

2

saturated water at 25°C

[µg/hour]

40 14 9.4 8

Temp. compensation

range

– 5 to 60° C

Temp. measuring range – 5 to 100° C

Response time

1

7.2 sec. 9.5 sec. 90 sec. 38 sec.

Recommended min. liquid

flow rate

2

[mL/min]

180 120 50 50

Recommended min. linear

flow rate

2

[cm/sec]

200 100 30 30

Recommended gaseous

flow rate [L/min]

0.1 to 3

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 45 46

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