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Sensor tube
The tube consists of two pipes. An outer reference tube and an inner PTFE insulated rod.
As the liquid will flow up between the rod and the reference tube the electrical capacitance throughout the
length of rod immersed in the liquid is registered.
Factory setting
The HBLT comes factory calibrated for R717 (NH
whole measuring range. (4 mA when the transmitter does not register liquid and 20 mA when the entire
transmitter is surrounded by liquid).
Any disturbances in connection with the level measurement will be damped internally.
For refrigerants: R717 (NH
The factory setting can be used.
Installation instruction
Mount the sensor tube in a standpipe or vessel with ¾"NPT respectively 1"BSP thread connection.
When installed on an ammonia installation and the sensor has the appropriate length just apply power and
the transmitter is in operation.
If the transmitter is to be used for level detection in other refrigerants than ammonia, please follow the
'setting of refrigerant'
NOTE!
When designing the stand pipe please make sure to create a slope on the connection pipe.
This prevents accumulation of oil
Mounting instruction
Instruction manual HBLT - A1 - Liquid level Transmitter (HBLT-A1-008-UK)
WE INCREASE
UPTIME
AND
IN THE REFRIGERATION INDUSTRY
), so that it will cover 4 to 20 mA throughout the rod's
3
) / R718 (H
O) it is not necessary to change the settings.
3
2
To install the sensor Teflon (NPT") tape or sealing ring(BSPP) is
required.
EFFICIENCY
6 / 16
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