SUR-K level indicator - MorInformSystem

The SUR-K level detectors are designed for remote automated monitoring and signaling of changes in the level of controlled electrically conductive and non-electrically conductive liquids or bulk products both in stationary and shipboard conditions.

The alarm system meets the requirements of the Russian Maritime Register of Shipping for automation tools.

The principle of operation is based on the registration of changes in the wave resistance of the medium by a sensitive element.

Features and benefits

the alarms have no moving parts, are resistant to vibration, shock, changes in the magnetic field, the effects of salt (sea) fog and do not require adjustment during operation;
the simplicity of the design and the use of unified enclosures ensures a low cost of the product;
the principle of operation allows you to use any insulated or non-insulated (for dielectric media) conductive element (rod, plate, corner, piece of electrical cable) as a detector of the presence or absence of a controlled medium, which makes it possible to change the configuration of the sensor element on request;
the possibility of using it to control the level of aggressive media;
possibility of application for monitoring the level of contaminated media;
various versions of the device are implemented: with a disk sensor element (monoblock or with a remote processing unit), a monoblock version with a coaxial or rod sensor element.

Length of the sensing element

from 60 to 2000 mm

Type of execution of the sensitive element

- disk;
- rod;
- coaxial

Ways to join the process

- threaded M27x1, 5;
- flanged;
- other at the customer's request

Temperature range of the controlled environment

from -40 to +150 ° C

Pressure of the controlled medium

up to 20 Mpa

The degree of protection of the shells from the penetration of water and dust

- primary converter: IP67;
- secondary converter: IP40

Power supply from a DC source

from 20 to 30 V

Rated power supply voltage

24 V

Power consumption

no more than 5 W

Output signals

- relay;
- analog 4-20 mA

Weight of the device

not more than 3 kg

Service life

15 years without resource restriction

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Type of execution	Structural design	Relative permittivity	The length of the submerged part of the sensor element, mm	Parameters of the controlled environment				Output signals
Type of execution	Structural design	Relative permittivity	The length of the submerged part of the sensor element, mm	Temperature	Operating overpressure, MPa	Granule size, mm, no more	Types of controlled environments	Output signals
1	Disk sensing element, monoblock version	≥ 20	from 60 to 2000	-40…+85 °С	up to 20⁴	5	Sea water with the presence of mechanical particles; bilge water – sea water with the presence of impurity 1; fresh water; distillate; bidistillate; liquid aggressive media²;other liquid media with dielectric permittivity ɛ > 20; bulk media with dielectric permittivity ɛ > 20	Relay or analog 4-20 mA
2	Disk sensing element, separate version with a secondary converter	≥ 20		-40…+150 °С	up to 20⁴	5	Sea water with the presence of mechanical particles; bilge water – sea water with the presence of impurities¹; fresh water; distillate; bidistillate; liquid aggressive media²; other liquid media with dielectric permittivity ɛ > 20; bulk media with dielectric permittivity ɛ > 20
3	Coaxial sensing element, monoblock design	≥ 2,5		0…+50 °С	up to 20⁴	–	Technical oils³; edible oils; oil; liquid petroleum products
4	Rod sensing element, monoblock design	≥ 2,5		-20…+85 °С	up to 20⁴	5	Grain and its grinding products; other bulk media with dielectric permittivity ɛ > 2,5

Notes:

1. Impurities in the form of:

mechanical particles (textile fibers, sand, solid corrosion products, etc. from 0.5 mm and a content of up to 25 g/l);

food waste with dimensions up to 0.5 mm and a content of up to 1g/l;

fat waste containing up to 4g/l;

starch content up to 0.5 g/l;

soaps with a content of up to 4g/l;

vinegar with a 3% content of up to 0.05 g/l;

mineral oils containing up to 1g/l.

2. Within the durability of the materials of the sensor element.

3.Within the wettability of the sensitive .

4. The primary converters of the signaling devices are sealed when exposed to a controlled environment of an operating overpressure of no more than 20MPa for signaling devices with a flanged connection, and no more than 1MPa for signaling devices with a threaded connection.

Deviations from the nominal response level:

not more than ± 1 mm for versions 1,2 (see the table);

not more than ± 15 mm for version 3 (vertical mounting method);

not more than ± 30 mm for version 4 (vertical mounting method);

within the diameter of the CHE for versions 3,4 (horizontal mounting method).

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