Bourdon tube pressure gauge per EN 837-1 S3, Safety pattern gauge

Type series BA45/BA46

  • EX
Bourdon tube pressure gauge per EN 837-1 S3, Safety pattern gauge - BA45/BA46


  • High quality case with bajonet ring NS 100/160 per EN 837-1 S3
  • Nominal ranges -0.6...0 bar to -1...24 bar, 0…0.6 to 0…1000 bar
  • Case and measuring element of stainless steel
  • Degree of protection IP 65
  • Accuracy class 1.0 or 1.6 as per DIN EN 837-1


  • Explosion protection (ATEX) for mechanical devices
  • Certificate of measuring equipment for Russian Federation
  • Material cetrtificate per EN 10204
  • Calibration certificate per EN 10204
  • Damping of movement
  • Electrical contact device, see data sheet D3-025 (de-pending on design)
  • Electronical angle-of-rotation sensor, see data sheet D6-020
  • Mounting: front flange for flush mounting
  • Extended temperature range
  • Connection to Zone 0 by using the flame arrester MF21xx, see data sheet D6-025
  • Case with liquid filling and degree of protection IP 66
  • Oxygen free of oil and grease
  • EAC declaration (upon request)

Technical Data

Constructional design / case
Design: High quality safety case with blow-out back and solid baffle wall per EN 837-1 S3, material: stainless steel mat.-no. 1.4301 (304), pressure compensation
diaphragm: silicone,
filling plug, material: PUR
Nominal size: NS 100 or NS 160
Degree of protection per EN 60529: - Without case filling: IP 65
- With case filling: IP 66
Case filling: Option: Glycerine-water
Further liquid fillings upon request.
Pressure compensation: To atmosphere via internal pressure compensation diaphragm
Case seal: Non-splintering laminated glass.
Option: Non-splintering plastic (Macrolon)
Measuring element: Bourdon tube
< 60 bar: c-type
≥ 60 bar: spiral
Movement: Stainless steel segment optional: movement with integrated damping system
Scale: Pure aluminium, white with black inscription.
Option: with red marking, special scale upon request.
Pointer: Pure aluminium, black. Option: with micro adjustment for zero point correction.
Mounting: Stand-alone, upon request for flush mounting with DIN mounting flange
Weights: NS 100 without filling: approx. 0.7 kg
NS 160 without filling: approx. 1.3 kg
NS 100 with filling: approx. 1.0 kg
NS 160 with filling: approx. 2.5 kg
Process connection
Design: Per EN 837-1, G1/2 B, 1/2" NPT or M20 x 1.5; bottom connection. Further process connections upon request.
Material wetted parts
Measuring element: Bourdon tube and shanks stainless steel mat.-no. 1.4571 / 1.4404 (316Ti / 316L)
Nominal range
See order details, other ranges upon request :  
Overloadprotection: standard: 1.3 times, higher overload protection see order details
Accuracy class: 1.0 per EN 837-1 (for nominal range < 1000 bar)
1.6 per EN 837-1 (for nominal range 1000 bar)
Temperature influence: Max. ± 0,4% / 10K of measuring span per EN 837-1
Temperature ranges
  without filling with filling
Ambient: -20…70 °C -20…60 °C
Media: 1,2 -40…200 °C -40…200 °C
Storage: -20…70 °C -20…60 °C
Extended temperature range for nominal ranges ≤ 600 bar (optional):
  without filling with filling
Ambient: -40…100 °C -40…60 °C
Media: 1,2 -40…200 °C -40…200 °C
1 Nominal range ≤ 1 bar up to 100 °C; 2 Nominal range > 600 bar up to 150 °C
Tests and certificates
See documents
Type series
BA4500, BA4540, BA4600, BA4640


  • D2-030

    Data Sheet

  • BA_008

    Operating Instructions

  • XA_005

    Ex Instructions

  • KE_053

    Declaration of Conformity