SENSOR TECHNOLOGY
CONTACT TEMPERATURE SENSOR ALF
TECHNICAL DATA
APPLICATION
Housing colour: Housing material:
pure white, similar to RAL 9010 PA plastic (30% GF reinforced)
The ALF contact temperature sensors are used for temperature measurement on pipes, tubes or heat carriers. For better temperature transmission be- tween the pipe and the contact sensor, the use of a heat conducting paste is recommended.
Ambient temperature: Permissible atmospheric humidity: Max. measurement current (passive):
−30 to +70 °C
max. 95% rel. humidity, non-condensing
< 1 mA
Electrical connection:
screw-type terminals 0.14 mm² – 2.5 mm² only to safety extra low voltage passive max. 30 V AC / 42 V DC on pipe by means of cable tie-wrap
Mounting / attachment:
Tolerances:
PT100 / PT1000
Protection rating: Protection class: Safety and EMC:
IP65
III
according to DIN EN 60730
Sensor characteristic curves: the sensor characteristic curves can be found in the ‘Miscellaneous’ section Please follow the EMC directives, avoid parallel routing with mains voltage-bearing wires, or use shielded wires.
SENSOR
TYPE
ITEM NO.
EURO / PG
PT 100
ALFP 100
G9050010
27.40 / III
PT 1000
ALFP 1000
G9050020
27.40 / III
‘Sensor 0’ (NTC 2K25)
ALF-0
G9050270
27.40 / III
‘Sensor 2’ (NTC 47K)
ALF-2
G9050160
27.40 / III
‘Sensor 3’ (NTC 8K)
ALF-3
G9050180
27.40 / III
‘Sensor 4’ (NTC 10K)
ALF-4
G9050190
27.40 / III
‘Sensor 5’ (NTC 50K)
ALF-5
G9050200
27.40 / III
‘Sensor 51’ (KTY 81-121)
ALF-51
G9050210
27.40 / III
ACCESSORIES
ITEM NO.
FEATURES
EURO / PG
WP-01
G9990180
heat conduction paste 2 ml
6.60 / II
ILLUSTRATIONS
237
Catalogue 2023
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