Hengesbach TPS-T Depth-Measuring Sensor

Description

Hengesbach TPS-T are the continuous measuring of filling levels in wells, drill-holes, waste-water systems, standing water bodies and containers that cannot be fitted with a measuring transducer that is flush with the wall of the container. The 4-20mA output signal is proportional to the filling level or pressure and is also available with a 4-wire temperature output.

Hengesbach TPS-T Features:

for hydrostatic filling level and depth measurements in wells, drill-holes, containers, waste-water systems, etc.
pressure ranges from 0 … 0.25 bar to 0 … 25 bar
output signal 4…20 mA
compact and robust construction
optionally with temperature output

Specification:

Device type / measuring principle	depth-measuring sensor of the type TPS-T / piezo-resistive
Applications	hydrostatic filling and level measurements in liquids
Input
Measuring ranges	see order information
Overload limit	3 times the maximum measuring value; max. 40 bar overload safety
Bursting pressure	> 4 times the maximum measuring value; max. 50 bar
Output
Output signal	4…20 mA, 2-wire
Working resistance	<	(U_B-10V)/0.02A (?)
Influence of working resistance	< 0.1% of filling level
Measuring accuracy
Linearity	< 0.5% of filling level
Setting time	< 10ms
Thermal hysteresis	Zero point and measuring range of 0…50°C
Auxiliary energy
Power supply	10…30V DC ripple: the voltage peaks may not exceed or fall short of the values given for the power supply
Influence of power supply	< 0.01%/V of maximum value (nominal power supply 24V DC)
Conditions for use
Permissible operating temperature	0…50°C
Environmental temperature influence at 0…50°C	zero point:	< 0.02%/1K typically < 0.04%/1K max.
	measuring range:	< 0.02%/1K typically, < 0.04%/1K max.
	zero point:	< 0.04%/1K typically, < 0.06%/1K max. for measuring range 250/400 mbar
	measuring range:	< 0.03%/1K typically, < 0.05%/1K max. for a measuring range of 250/400
	mbar
Design configuration
Electrical connection	6-wire sheathed polyethylene cable with internal air equalisation hose, length as required, minimum bending radius 120 mm (fixed installation), for use up to 100m without an additional cable grip
Parts in contact with the medium	stainless steel material No.: 1.4435 (316L) FPM, polyolefin, polyethylene
Protection type EN 60529	IP68 (up to 40 bar)
Accessories	pressure equalisation casing with ventilation filter *
	cable reel *