- Basic Information & Design
Versions Available: Options include versions for hazardous areas (Ex ia), offshore, tropical, geothermal, and ammonia applications, as well as for oxygen, oil-, and grease-free environments. It also complies with NACE MR0175/ISO 15156 and NACE MR0103/ISO 17945 standards.
Enclosure Material: Stainless steel 316.
Design Features: The enclosure is tamper-proof, featuring an access cover plate with a lead seal option and a laser-engraved stainless steel product label.
Mounting Options: Direct mounting, stainless steel wall bracket, or a mounting bracket for 2' pipe mounting.
Safety Class: Safety class I (IEC 61298-2:2008).
Set Point Repeatability: ≤1% of the end of the setting range.
Process Connections (Standard): ANSI/ASME B1.20.1 (1/4 NPT female, 1/2 NPT female via adapter, 1/2 NPT male via adapter) and DIN EN ISO 228 (G 1/4 female via adapter, G 1/2 A male via adapter, G 1/4 A male via adapter).
Process Connection Material: Stainless steel 316L (wetted part).
Electrical Connection Types: Threaded connection with a silicone-sheathed connection cable (1.5 m, 3 m, or 5 m lengths) or a copper-free, epoxy resin-coated aluminum alloy terminal box.
Wire Cross-Section: 0.5 mm² (20 AWG).
Ambient Temperature Range (Ex Version): -30...+60°C (for T6/T85°C) and -30...+85°C (for T4/T135°C).
Ingress Protection: IP66 per EN/IEC 60529 (NEMA 4X).
Weight: 0.6 kg (with cable outlet and 1.5 m cable) or 1.1 kg (with terminal box).
Contact Versions & Electrical Ratings
The switches feature hermetically sealed microswitches with a fixed dead band. The DPDT function is achieved using two simultaneously triggering SPDT microswitches.
| Contact Version Code | Contact Type & Material AC Rating (Resistive Load) DC Rating (Resistive Load) |
| E | 1 x SPDT, silver, hermetically sealed 250 V, 5 A 24 V, 5 A | J | 1 x SPDT, gold-plated, hermetically sealed |
250 V, 0.5 A |
24 V, 1 A |
| L | 1 x DPDT, silver, hermetically sealed 250 V, 5 A 24 V, 5 A | M | 1 x DPDT, gold-plated, hermetically sealed |
250 V, 0.5 A |
24 V, 1 A |
Sensor Elements & Operating Temperatures
The permissible medium temperature depends on the selected sensor element and sealing:
| Sensor Element | Description Wetted Parts (Element / Sealing) Permissible Medium Temp. |
| M | Welded diaphragm with antagonist spring Hastelloy C276 / None -40...+200°C | M | Diaphragm with antagonist spring and O-ring |
Hastelloy C276 / FPM |
-30...+200°C |
| G | Piston with antagonist spring and welded diaphragm Hastelloy C276 / FPM -40...+140°C | P | Piston with antagonist spring |
Stainless steel 316L / NBR |
-10...+110°C |
| P | Piston with antagonist spring Stainless steel 316L / EPDM -40...+110°C |
Other Product
