Gas expansion thermometer NS 100/160, switch function, bottom or back connection

Type series FU2400

  • EX
  • SIL2
Gas expansion thermometer NS 100/160, switch function, bottom or back connection - FU2400


  • Case, measuring system and wetted parts of stainless steel
  • Case NS 100/160, degree of protection IP 66
  • Stem diameter 6, 8 and ≥ 10 mm
  • Short immersion lengths of the stem may be used
  • Accuracy class 1 or 2 as per DIN 16196, depending on range
  • Micro adjusting pointer for indication correction
  • Switch functions (electrical contact device) per DIN 16196: slow acting contact; magnetic snap contact; inductive contact devices


  • Case with liquid filling
  • Explosion protection
  • Classification per SIL2
  • Material certificate per EN 10204
  • Connection to zone 0 with thermowells upon request

Technical Data

Constructional design / case
Case high quality bayonet ring case DN 100/160
material: st. steel mat.-no. 1.4301 (304)
Degree of protection (EN 60529) IP 66
Measuring element bourdon tube dead zone free with inert gas filling
Temperature detecting element stainless steel material no. 1.4404 (316L), diameter 6, 8 and ≥ 10 mm, can be supplied in standard lengths. Active lengths depend on temperature detecting element diameter,
see order details, other values upon request
Case filling liquid filling Labofin
Process connection rigid temperature detecting element, radially protruding at bottom, alternatively centrically at rear.
Different connections can be supplied, see order details
Movement stainless steel with compensation
Scale pure aluminium, white with black inscription.
Option: with marking
Pointer pure aluminium, black with micro adjusting device for zero-point correction
Window non splintering laminated glass. Option: non splintering plastic (Macrolon) with contact lock
Case seal sealing ring: Perbunan
filling plug: Desmopan
Nominal ranges per EN 13190, max. -100...700 °C, measuring spans ≥ 60 °C
Accuracy class data per DIN 16196 (depending on range) for all temperature detecting elements with diameter d5 and standard immersion length l1 - see data sheet T3-027
Ambient temperature per EN 13190, ambient temperatures that deviate from EN are to be specified
Storage and transport temperature per EN 13190, max. -20...+60 °C
  For measuring devices with inductive contact type SJ2-S1N (NS 100, double contact): For safe operation refer to TA_044!
Electrical connection connection plug with cable gland M 20 x 1.5 and removable test cover, mat. Macrolon
Switch function Touch contacts or inductive contact devices see order code. Further technical details see operating instructions BA_066 and TA_039.
Weights DN 100, without filling: approx. 1.1 kg
DN 100, with filling: approx. 2.0 kg
DN 160, without filling: approx. 2.0 kg
DN 160, with filling: approx. 4.3 kg
Instructiosn for use the loading capacity of the temperature detecting element depends on the following parameters:
1. measured medium
2. measured medium pressure
3. measured medium temperature
4. flow velocity
5. immerison length
6. material
A technical test is necessary where required
Information on other models upon request or see order details
Tests and certificates
See documents
Type series
FU2400, FU2401, FU3400, FU3401, FU2600, FU2601, FU3600, FU3601, FU2300, FU2301, FU3300, FU3301, FU2500, FU2501, FU3500, FU3501


  • T3-027

    Data Sheet

  • BA_066

    Operating Instruction

  • XA_013

    Ex Instructions - Gauges with slot-type initiators (type SJ2-N and SJ3,5-N)

  • XA_014

    Ex Instructions - Gauges with slot-type initiators (type SJ2-SN and SJ3,5-S(1)N)

  • XA_021

    Ex Instructions - Gauges with magnetic snap contact

  • ZER_028

    Certificate - ATEX (inductive contact P+F SJ2-N SJ3,5-N)

  • ZER_029

    Certificate - ATEX (inductive contact P+F SJ2-SN SJ3,5-SN)

  • TA_039

    Technical Information - Switch function in pressure and temperature devices

  • HE_088

    Manufacturer Declaration - SIL2

  • KE_053

    Declaration of Conformity