Dinel DLM–35 Capacitive Level Meter

Dinel DLM–35 Capacitive Level Meter are intended for continuous level measurement of liquid and bulk solids in tanks, vessels, sumps or silos, hoppers, etc. They are comprised of a housing with an electronic module and measuring electrodes. The electronic part converts the size of the capacity to the current signal (4 … 20 mA) or voltage signal (0 … 10 V).

Level meters are made in several modifications of measuring electrodes (rod and rope). The electrodes can be covered by an insulating coating in case level measurement of adhesive, aggressive, or electrically conductive media. Rod electrodes are also available in a version with reference (coaxial) tube for level measurement of liquids in tanks made from a non-conductive material.

Level meters are produced in the following performances: N – for non-explosive areas, NT – high temperature for non-explosive areas, Xi – Explosion-proof – intrinsically safe for hazardous (explosive) areas and XiM – Explosion-proof – intrinsically safe for use in mines with methane or flammable dust presence danger (see technical specifications). There are high-temperature performance NT, XiT, XiMT available. DLM are offered in variants with various types of process connection (metric and pipe thread, pressure thread NPT).

Dinel DLM–35 Capacitive Level Meter Benefit

Direct mounting into containers, vessels, basins, reservoirs, etc.
Possibility of linear measurements even in non-conductive and differently shaped containers
Simple sensitivity setting by means of magnetic pen
LED state and function indication
Wide choice of electric connection via connectors, cable glands or protective conductor
The material of housing and rod electrodes from stainless steel
Xi, XiT versions for usage in explosive areas, or XiM, XiMT versions for mining environments with a risk of hazard by methane or coal dust

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Dinel DLM–35 Capacitive Level Meter Specifications

Supply voltage	DLM – 35N(T)–_ _–_–I	9 … 34 V DC
	DLM – 35N(T)–_ _–_–U	12 … 34 V DC
Current output	4 … 20 mA (2-wire)
Voltage output	0 … 10 V (3-wire)
Power consumption	DLM–35_–_ _–_–I	3.75 … 20.5 mA
	DLM–35_–_ _–_–U	5 mA (voltage output open circuit)
Non-linearity	max. 1 %
Temperature error	max. 0.05% / K
Voltage error for current and voltage output	max. 0.3 μA/V and 0.1 mV/V
Leakage resistance (electrode – housing) / dialectic strength	1 MΩ / 200 V DC
Coupling capacity (housing – power) / dielectric strength	50 nF / 350 V AC
Coupling capacity (electrode – power) / dielectric strength	47 nF / 350 V AC
Ambient temperature range:	– 40 … + 85 °C
Protection	type DLM-35_-_ _-C-_-_	IP67
	type DLM-35_-_ _-A(B,V,H)-_-_	IP68
Maximum load resistance for current output (at U = 24 V)	Rmax= 700 Ω
Weight (excluding electrode and cable)	performance N	approx. 0.3 kg
	performance NT	approx. 0.6 kg
Cable (version with cable glands)	PVC 2 x 0.75 mm2 or
	3 x 0.5 mm2 (according to variant)