Technical data
Oxymax H COS21D
32
Hauser
Repeatability
±1 % of measured value
Long-term drift
Influence of medium
pressure
Pressure compensation not necessary
Polarization time
• COS21D-A and COS21D-C:
< 60 minutes
• COS21D-B:
< 12 hours
Oxygen depletion
(intrinsic consumption)
• COS21D-A:
Approx. 20 ng/h in air at 25 °C (77 °F)
• COS21D-B and COS21D-C:
Approx. 100 ng/h in air at 25 °C (77 °F)
10.5 Mechanical construction
Weight
0.2 kg (0.44 lbs)
Materials
Process connection
Thread Pg 13.5
Electrolyte
• COS21D-A and COS21D-C:
Alkaline electrolyte
• COS21D-B:
Phosphoric acid electrolyte
1)
In accordance with IEC 746-1 at nominal operating conditions
Zero-point drift:
< 0.1 % per week at 30 °C (86 °F)
Measuring range drift:
< 0.1 % per week at 30 °C (86 °F)
1)
1)
under constant conditions each
Sensor shaft:
Electrode combination:
O-rings:
Process sealing of
ATEX/FM/CSA versions:
Membrane
Stainless steel 1.4435 (AISI 316L)
Silver / Platinum
Viton
®
(FDA certified, original delivery)
EPDM (depending on membrane kit)
Viton
®
(not FDA conform)
COS21D-****2:
all other versions:
FDA certified material
Silicone rubber
