When using a level sensor for measuring Ammonia in a compact plate and shell heat exchanger or other systems with turbulent conditions, we have new recommendation based on recent experience:
For Stand-pipes with stable conditions (smooth changes in the level):
• Use a HBLT-Wire or a HBLT-A3 probe sensor.
For Stand-pipes with turbulent conditions (a lot of turbulence, boiling, foaming, and receiving liquid from the top):
• Use a HBLT-A3 sensor, or
• Use only a HBLT-Wire sensor when you have it mounted in an inner guide-tube of e.g. DN25 as illustrated.
The guide-tube will reduce the turbulence and the foaming so you will have a good measurement.
• If the HBLT-Wire sensor is already mounted under these conditions WITHOUT a guide-tube,
you can set the filter time between 60-120 seconds to dampen the signal from the turbulent conditions.
For Alfa Laval U-turn evaporator: Use a HBLT-A3 sensor.
Standard versions
All sensors has an analog output
Sensor with M12 connector
Control versions
- /C for modulating valve
- /S for stepper motor
- /PWM for pulse modulating valve
Drawing
Power supply |
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Voltage | 24 AC/DC + 10%
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Max. possible resistance | 500 ohm
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Max consumption | 600 mA
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Plug connection | DIN 0627 - 5 pins
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Output |
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Analog output | 4-20 mA, 1 A
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Transsistor output - alarm | PNP, 1 A
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Contact function - alarm | NO/NC (Programmable)
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Environmental conditions |
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Ambient temperature | -30...+50°C
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Refrigerant temperature | -60...+60°C
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Max. pressure | 100 bar
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Protection degree | IP65
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Vibrations | IEC 60068-2-6 (4g)
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Refrigerants | R22, R134A, R404A, R410A, R507, R717 & R718, R1234 and others, but not suited for R744, R290 and R600a
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Mechanical specifications |
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Thread connections | 3/4” NPT
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Adapter - 3/4" NPT / 1" BSPP (option) | HBS/ADAP/8/2
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Size | Se dimensional drawing
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Material - liquid parts | AISI 304 / PTFE
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Material - electronic parts | Different plastics
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House type | Angle
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Approvals |
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EMC-Emission | EN 61000-3-2
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EMC-Immunity | EN 61000-4-2
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Cable |
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HBxC-M12/5 | 5 m - 5 wire
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Indication |
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LED indication | Green, yellow & Red LED
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Configurations |
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Configuration | PC tool |