Data Sheet

Reliability data
Test Standard Test conditions ∆R
25
/R
25
(typical)
Remarks
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
T: 80 °C
t: 1000 h
< 2% No visible
damage
Storage in damp
heat, steady state
IEC
60068-2-78
Temperature of air: 40 °C
Relative humidity of air: 93%
Duration: 56 days
< 2% No visible
damage
Storage in coldness Storage at lower
category temperature
T: 40 °C
t: 1000 h
< 2% No visible
damage
Rapid temperature
cycling (in air)
IEC
60068-2-14
Lower test temperature: 40 °C
Upper test temperature: 80 °C
Time to change from lower to
upper temperature: <30 s
Number of cycles: 1000
Medium: air
< 2% No visible
damage
Storage in water Temperature of water: 30 °C
t: 4000 h
Applied voltage with drop resistor
10 kΩ: 10 V DC switched
between on (t
on
= 30 min) and
off (t
off
= 30 min)
< 2% No visible
damage
Temperature
cycling test
Lower test temperature: 30 °C
Upper test temperature: 10 °C
Test frequency <15 min under
wetness and frozen water
Number of cycles: 50000
Medium: air
< 2% No visible
damage
Voltage proof test 3750 V AC,
1 min
No flashover
Insulation test The sensors are placed in a
vessel containing metallic balls of
1 mm diameter (with total
immersed head). The applied
voltage is 500 V DC.
Above
1000 MΩ
Temperature measurement B57020M2
Probe assemblies M2020
Page 3 of 9Please read Cautions and warnings and
Important notes at the end of this document.