EN
14096788.08 02/2022 EN/DE/FR/ES
34
WIKA operating instructions models TR31-3, TR31-K
Operating conditions
Maximum operating pressure
1) 2)
For protection tube Ø 3 mm
[0.12 in]
140 bar [2,030 psi]
For protection tube Ø 6 mm
[0.24 in]
270 bar [3,916 psi]
Salt mist
IEC 60068-2-11
Vibration resistance per
IEC 60751
10 ... 2,000 Hz, 20 g
1)
Shock resistance per
IEC 60068-2-27
50 g, 6 ms, 3 axes, 3 directions, three times per
direction
Conditions for outdoor use
(only applies to UL approval)
■
The instrument is suitable for applications with
pollution degree 3.
■
The power supply must be suitable for
operation above 2,000 m should the
temperature transmitter be used at this altitude.
■
The instrument shall be installed in locations
sheltered from the weather.
■
The instrument shall be installed sun/UV
irradiation protected.
Material
Stainless steel
Ingress protection (IP code)
Case with connected
connector or directly
connected cable
3)
■
IP67 per IEC/EN 60529
■
IP69 per IEC/EN 60529
■
IP69K per ISO 20653
The stated ingress protection only applies when
plugged in using line connectors that have the
appropriate ingress protection.
Coupler connector, not
connected
IP67 per IEC/EN 60529
Weight
Approx. 0.2 ... 0.7 kg [0.44 ... 1.54 lbs] -
depending on version
1)
Dependent on the instrument version
2) Reduced operating pressure when using a compression fitting:
Stainless steel = max. 100 bar [1,450 psi] / PTFE = max. 8 bar [116 psi]
3)
Not tested with UL
12. Specifications
