LEVEL SWITCH TYPE 89
The level switch type 89 is used to control liquid levels regardless of difficult operating conditions. The unit is designed for constant and long-term maintenance-free operation. According to customer specification and conditions, many variants in material, process connection and function are available.
Operation
- A float or spring sustained displacer with guiding rod and permanent magnet operates a protective gas switch situated outside the medium area.
- With the level indicator type 89az the permanent magnet acts directly upon the indicator needle of the indicator and with type 89afr having analogue output signal the magnet acts upon a fine grinding resistance with measuring transformer.
Advantages
- Reliable unit suitable for contaminated liquids.
- Wear and tear resistant construction with only one moving part.
- Model available for liquids with temperatures up to 500 °C.
- Several explosionproof models available.
- Models available for use in maritime and humid tropical climates.
- Simple installation and connection.
- Model with analogue output signal
- Long-term continuity of spares availability or complete units.
Suitability
- Automatic filling of tanks.
- Level control in gears, automatic steel hardening plants and large transformers.
- Level control in boilers.
- Overflow control.
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DP Flowmeter
EARL Control instruments
Flow Switches
Pressure Switches
Level Switches
