Endress+Hauser Memosens COS51E, Operating Instructions Manual

Page: 43 / 48

Memosens COS51E Technical data
Hauser 43
Maximum measured
error
2)
COS51E-****TN (black membrane cap): ≤ ±1 % of the measured value
COS51E-****TF (white membrane cap): ≤ ±1 % of the measured value
Limit of detection (LOD)
3)
COS51E-****TN (black membrane cap): 10 ppb
COS51E-****TF (white membrane cap): 5 ppb
Limit of quantification
(LOQ)
3)
COS51E-****TN (black membrane cap): 20 ppb
COS51E-****TF (white membrane cap): 10 ppb
Repeatability COS51E-****TN (black membrane cap): 20 ppb
COS51E-****TF (white membrane cap): 100 ppb
Long-term drift
4)
Zero-point drift: < 0.1 % per week
Measuring range drift: < 0.1 % per week
Polarization time < 60 minutes
Intrinsic oxygen
consumption
• COS51E-****TN:
approx. 90 ng/h in air at 25 °C (77 °F)
• COS51E-****TF:
approx. 270 ng/h in air at 25 °C (77 °F)
Electrolyte Alkaline saline solution
12.4 Environment
Ambient temperature
range
-5 °C ≤ T
a
≤ 60 °C (T6)
23 °F ≤ T
a
≤ 140 °F (T6)
Storage temperature range • Filled with electrolyte:
–5 to 60 °C (20 to 140 °F)
• Without electrolyte:
–20 to 60 °C (0 to 140 °F)
Degree of protection IP 68 (10 m (33 ft) water column, 25 °C (77 °F), 30 days)
12.5 Process
Process temperature range -5 ≤ T
p
≤ 60 °C (T6)
41 °F ≤ T
p
≤ 140 °F (T6)
2) In accordance with IEC 60746-1 at rated operating conditions
3) According to DIN EN ISO 15839. The measured error contains all the uncertainties of the sensor and transmitter (measuring chain). It does not
contain all the uncertainties caused by the reference material and adjustments that may have been performed.
4) Under constant conditions