Hengesbach DTA 1010 Digital Tank Level Display

Hengesbach DTA 1010 Digital Tank Level Display can determine the content of tanks of various shapes, even when there is no linear relationship between filling height and content, i.e. the system compensates for non-standardized tank shapes. The measurement is based on the hydrostatic pressure or differential pressure (with 2 pressure sensors) or on distance sensors (e.g. ultrasound, radar, potentiometer).

The device provides the option of connecting an additional level sensor. When a specific level is reached, the display is corrected to the value that corresponds to the filling height in the tank in which the level sensor has been installed.

Programming is performed at the membrane keyboard in front. The alarm outputs can be programmed as min. or max. functions. The switching states are indicated by LEDs. When the digital filter is activated, the mean of 16 measuring values is continuously calculated and displayed. An analogue signal in the range 0…20 mA / 0…10 V DC or 4…20 mA / 2…10 V DC that is proportional to the tank content is provided. Switching from a current to a voltage signal is load dependent (> 500 Ω to voltage).

Hengesbach DTA 1010 Features:

1 input for standard signals 0/4-20 ma or 0/2-10 v dc
1 input for automatic filling level correction, optional: 2. input for pressure measuring transmitter
volume or mass display (weight)
6 standard as well as any special tank shapes selectable
max. 2 alarm outputs, change-over relay, min/max function
analog output 0/4…20 ma, 0/2…10 v dc, depending on the working resistance
protection type ip 65
display scope digits 0…999999
adjustment in pressure-free state possible

Specification:

Design data
Housing	Field housing with hinged lid,
	Material housing: Glassfibre-reinforced polyamide PA6-GF 15/15
	Material of front foil: Polyester
Dimensions	see dimension drawings
Connection	Spring-loaded clamps, 2 mm² single wire, 1 mm² fine wire, AWG 14
Type of protection	Front IP 65, clamps IP 20, contact protected according to BGV A2
Weight	max. 450 g
Display
Display	LED red; 14.2 mm
Display scope	Digits 999999 with suppression of leading zeroes
Additional display	LED 2 digits, red, 7 mm (display for parameter and switching state)
Electrical connection
Auxiliary voltage	230 V AC +/- 10 %; 115 V AC +/- 10 %; 24 V AC +/- 10 %; 24 V DC +/- 15 %
Power input	max. 3.5 VA, with anaolg output 5 VA
Operation temperature	-20…+ 55 °C
Rated voltage	250 V AC according to VDE 0110 between input/output/auxiliary voltage,
Rated voltage	Degree of Pollution 2, Overvoltage Category III
Test voltage	4 KV between input/output/auxiliary voltage
CE conformity	Complies with the standards EN 55022, EN 60555, IEC 10004-3/4/5/11/13
Inputs
Current inputs	0/4…20 mA;
Voltage inputs	0/2…10 V DC;
Basic accuracy	< 0.1 % +/- 2 digits
Temperature coefficient	0.004 % / K
Transmitter supply	Uo approx. 24 V, Ri approx. 150 Ω, max. 50 mA
Outputs
Relay	Change-over contact < 250 V AC < 250 VA < 2A, < 300 V DC < 50 W < 2 A
Analog output	0/4…20 mA working resistance </= 500 Ω; 0/2…10 V working resistance > 500 Ω,
	No galvanic separation of the measuring input, output switches automatically (load-
	dependent)
Accuracy	0.1%; TK 0.01 %/K