Head Sensors
Resistance sensors with connection heads are for solid, fluid or gaseous mediums. They are used for example at pipelines, within Heater and oven constructions. The interchangeable gauge slide is a standard PT100 class B with two-wire circuit. Three- and four wire circuits resistance sensors class A as per IEC 751 are as well available. The B-shaped connection head is for surrounding temperatures up to 100 °C. BBK-heads goes up to 120 °C. The protection tube is out of 1.4571 raw material, has a diameter of 15 mm and is suitable for temperatures up to 600 °C. The fitting length is adjustable via a connection flange or thread muffle. AS-Design is the fast model with reduced measure tip.
Please find following our standard leads for PWF 300 Resistance sensors listed. Others are available on request.
| part# | cross section | temperature range | outer diameter |
| 1308376 | 2x0.22 mm² Cu-tinned |
-50 °C up to +350 °C | 3.50 ±0.15 mm |
| 1298296 | 2x0.22 mm² Cu-tinned |
-50 °C up to +260 °C | 3.80 ±0.05 mm |
| 1258824 | 2x0.25 mm² Cu-tinned |
-50 °C up to +260 °C | 3.30 ±0.10 mm |
| 1201354 | 2x0.35 mm² Cu-nickel plated |
-50 °C up to +260 °C | 4.6 x 2.8 mm |
| 1340642 | 3x0.25 mm² Cu-tinned |
-60 °C up to +260 °C | 3.40 ±0.15 mm |
| 1266897 | 4x0.18 mm² Cu-nickel plated |
-50 °C up to +260 °C | 3.90 ±0.15 mm |
| 1307789 | 4x0.22 mm² Cu-tinned |
-50 °C up to +350 °C | 4.00 ±0.15 mm |
| 1300580 | 4x0.22 mm² Cu-tinned |
-90 °C up to +260 °C | 3.50 ±0.10 mm |
| 1307865 | 4x0.25 mm² Cu-tinned |
-25 °C up to +180 °C | 4.50 ±0.15 mm |
Resistance Sensor plug connectors
The standard plug connectors are due to their construction reverse-polarity protected and up to 120 °C temperature stable. The round U type contact pins are out of copper (plus pin Ø 4 mm - minus pin Ø 4.7 mm). The plug is white and suitable for cross sections up to 1 mm². We recommend to assemble a strain relief with the plug and socket. This avoids the relieve of the leads from the plug. A brass ferrule will be provided, please state lead diameter.
| 2-pin | plug | part# 2211006 |
| socket | part# 2211010 | |
| ferrule | part# 2211002 |
| 3-pin | plug | part# 2211007 |
| socket | part# 2211012 | |
| ferulle | part# 2211019 |
Connection flange
Counter flange out of grey iron
Shiftable out of steel or rust-free steel, ceramic braid sealing, gas thight up to approx. 1 bar
| with thread for 15 mm protection tube diameter: | |
| G 1/2 A | part# 2211306 |
| G 3/4 A | part# 2211307 |
| G 1 A | part# 2211308 |
| 1.0305 material | |
B model connection heads are for Thermocouples and Resistance Sensors as per DIN 43729.
Standard connection heads are with M20 x 1.5 cable screw union with rubber sealing which limits the temperature to 80 °C max. With silicone sealings there are temperatures up to 200 °C possible.
| type | protection | clamping base | material | d1 mm | part number |
| B | IP54 IP54 IP68 IP68 |
B | aluminium die-cast | 10.5 15.3 M24x1.5 G 1/2" |
2211195 2211194 1200350 2211196 |
| loose cover, fitted with two screws | |||||
| BUS | IP54 IP68 IP68 |
B | aluminium die-cast | 15.3 M24x1.5 G 1/2" |
2211198 2211201 2211202 |
| hinged cover with crank quick fastener | |||||
| BUZ | IP54 IP68 IP68 |
B | aluminium die-cast | 15.3 M24x1.5 G 1/2" |
2211203 2211204 2211205 |
| hinged cover with slotted screw | |||||
| BBK | IP54 IP68 IP68 |
B | synthetic Polyamide | 15.3 M24x1.5 G 1/2" |
2211206 2211207 2211208 |
| with screw cover | |||||
Connection base for connection head model B, BUS, BUZ and BBK
| number of connections for Thermocouples/Resistance sensors | part number |
| 2 | 1200351 |
| 4 | 1208920 |
| 6 | 2211312 |
Design examples
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