EN
WIKA operating instructions models TR31-3, TR31-K
14096788.08 02/2022 EN/DE/FR/ES
33
Output signal (4 ... 20 mA version)
Voltage supply
Supply voltage U
B
DC 10 ... 30 V
Supply voltage input
Protected against reverse polarity
Permissible residual
ripple of supply voltage
10 % generated by U
B
< 3 % ripple of the output
current
Time response
Switch-on delay,
electrical
Max. 4 s (time before the first measured value)
Warm-up time
After approx. 4 minutes, the instrument will function to
the specifications (accuracy) given in the data sheet.
Operating conditions
Ambient temperature range
M12 x 1 circular connector (model TR31-3-x-xx)
4 ... 20 mA version
-40 ... +85 °C [-40 ... +185 °F]
Version with FKM O-ring: -20 °C [-4 °F]
Pt100 / Pt1000 version
-50 ... +85 °C [-58 ... +185 °F]
Version with FKM O-ring: -20 °C [-4 °F]
Directly connected cable
(model TR31-K-x-xx)
-20 ... +80 °C [-4 ... +176 °F]
Storage temperature range
M12 x 1 circular connector
(model TR31-3-x-xx)
-40 ... +85 °C [-40 ... +185 °F]
Version with FKM O-ring: -20 °C [-4 °F]
Directly connected cable
(model TR31-K-x-xx)
-20 ... +80 °C [-4 ... +176 °F]
Climate class per IEC 60654-1
M12 x 1 circular connector (model TR31-3-x-xx)
4 ... 20 mA version
Cx (-40 ... +85 °C [-40 ... +185 °F], 5 ... 95 % r. h.)
Version with FKM O-ring: -20 °C [-4 °F]
Pt100 / Pt1000 version
Cx (-50 ... +85 °C [-58 ... +185 °F], 5 ... 95 % r. h.)
Version with FKM O-ring: -20 °C [-4 °F]
Directly connected cable
(model TR31-K-x-xx)
Cx (-20 ... +80 °C [-4 ... +176 °F]
, 5 ... 95 % r. h.)
Version with FKM O-ring: -20 °C [-4 °F]
Maximum permissible
humidity, condensation
100 % r. h., condensation allowed
12. Specifications