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- HE version: Level detection on neutral liquids
- HS version: Level detection on aggressives liquids
Probes HE and HS, hanged electrodes, are to be in use with relays ES2001 for detection of liquid levels in storage tank.
Depending on the model, up to 5 levels can be detected using the wall tank as a reference electrode; Provide a reference electrode if the tank is made of insulating material (i.e. up to 4 level detection + 1 reference).
This technical solution is not suitable for liquids with hydrocarbons or grease or for any other application where an insulating layer is liable to deposit on the electrodes.
They were developed for hanging in containers and shafts with lengths over 1000 mm.
| Fitting material | HE: PP HS: PVC |
|
| Cable | HE: Flexible PVC HS: Special cable coated with PES |
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| Housing | PBT, glass fiber reinforced | |
| HS probe body | PVC | |
| Ambient temperature | -20 ... +60 °C | |
| Liquid temperature | HE version: 0 ... +60 °C, HS version: Depends of chemical resistance of PVC and PES |
|
| Pressure | 0.5 bar (Immersion depth Max. 5 m with SG = 1) | |
| Protection | IP 65 according EN 60 529 | |
| Minimum for cable lengths L1 & L2: | HE: 0.3 m HS: 0.2 m |
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| Maximum for cable lengths L1 ... L5: | 25 m |
EC Conformity: The instrument meets the legal requirements of the current
European Directives.
