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Pressure switches ДЕМ-102С and ДЕМ-105С

Manufacturer: PAO SARANSK INSTRUMENT WORKS
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Свидетельство о типовом одобрении Морского регистра судоходства

Паспорт на Датчики-реле давления ДЕМ-102С, ДЕМ-105С и разности давлений ДЕМ-202С

Справка об отсутствии необходимости обязательного подтверждения в РФ и в рамках Таможенного союза

Декларация ДЕМ на ТР ТС

Руководство по эксплуатации

Pressure switches ДЕМ-102С, ДЕМ-105С (hereinafter – devices) are intended to monitor and regulate pressure in alarm systems, diesel engine protection and control systems, locomotive-type diesel engine systems, refrigeration plants and other systems used in vessels, railway and motor transport, relay pressure control by opening or closing electric contacts.

Controlled medium is water, air, freons, oils and other liquids and gas, with a maximum viscosity of 0.8 Pa∙s, nonaggressive to the used structural materials.

Devices are fit for operation under conditions established for versions В2.5 (for ДЕМ-105С only), УХЛ3, ОМ5 as per GOST 15150-69. 

General specifications

1. Designations of the device, specified setpoint range, basic absolute error, actuation range and threshold return area value of devices are in compliance with those given in Tables 1 and 2.

Table 1

Device designation

Specified setpoint range*, MPa

Basic absolute error, MPa, maximum

Actuation range, MPa, maximum

Return area, MPa, maximum

controllable

uncontrollable

minimum

maximum

maximum

ДЕМ-102С-1-01

 0.02 to 0.4

± 0.005

0.004

0.04

0.25

-

ДЕМ-102С-2-01

 0.02 to 0.4

± 0.005

0.004

-

-

0.05

ДЕМ-102С-1-02

 0.1 to 1.4

± 0.15

0.02

0.05

0.4

-

ДЕМ-102С-2-02

 0.1 to 1.4

± 0.15

0.02

-

-

0.06

ДЕМ-102С-1-03

 -0.09 to 0.32

± 0.012

0.004

0.03

0.3

-

ДЕМ-102С-2-03

 -0.09 to 0.32

± 0.012

0.004

-

-

0.03

ДЕМ-102С-1-04

 0.02 to 0.4

± 0.005

0.004

0.04

0.25

-

ДЕМ-102С-2-04

 0.02 to 0.4

± 0.005

0.004

-

-

0.05

ДЕМ-102С-1-05

 0.2 to 3.0

± 0.15

0.02

0.1

0.6

-

ДЕМ-102С-2-05

 0.2 to 3.0

± 0.15

0.02

-

-

0.35

ДЕМ-102С-1-06

 1.0 to 6.0

± 0.25

0.05

0.4

3

-

ДЕМ-102С-2-06

 1.0 to 6.0

± 0.25

0.05

-

-

0.6

Note – Devices ДЕМ-102С-1 with controllable return area, devices ДЕМ-102С-2 with uncontrollable return area.

* “Specified setpoint range” – values of setpoints at which the requirements of technical conditions are satisfied for each device version.

Page 4 of the Catalog

Table 2

Device designation*

Specified setpoint range**, kPa

Basic absolute error, kPa, maximum

Actuation range, kPa, maximum

Uncontrollable return area, kPa, maximum

ДЕМ-105С-01-1

20 to 400

± 5

± 4

30

ДЕМ-105С-01-2

20 to 400

± 5

± 4

30

ДЕМ-105С-02-1

20 to 900

± 25

± 10

70

ДЕМ-105С-02-2

20 to 900

± 25

± 10

70

*The designation for ДЕМ-105С with ШР or 2РТТ type connectors shall include additional number 1 or 2, respectively, after the return area designation.

**“Specified setpoint range” – values of setpoints at which the requirements of technical conditions are satisfied for each device version.

Notes
1. Setting the device to a specific actuation setpoint and to a specific value of return area (for ДЕМ-102С-1 only) shall be done by the manufacturer according to the order.
Setpoint value shall be selected from the setpoint range in increments of:
– 5 kPa – for ДЕМ-105С-01;
– 10 kPa – for ДЕМ-105С-02;
– 0.005 MPa – for ДЕМ-102С-1(2)-01, ДЕМ-102С-1(2)-03, ДЕМ-102С-1(2)-04;
– 0.01 MPa – for ДЕМ-102С-1(2)-02;
– 0.1 MPa– for ДЕМ-102С-1(2)-05;
– 0.5 MPa – for ДЕМ-102С-1(2)-06.
2. If the order does not specify an actuation setpoint, devices shall be set by the manufacturer to the following actuation setpoints within the appropriate specified setpoint range:
– ДЕМ-102С-1(2)-01 – 0.1 MPa ± 0.005 MPa;
– ДЕМ-102С-1(2)-02 – 0.75 MPa ± 0.15 MPa;
– ДЕМ-102С-1(2)-03 – 0.1 MPa ± 0.012 MPa;
– ДЕМ-102С-1(2)-04 – 0.1 MPa ± 0.005 MPa;
– ДЕМ-102С-1(2)-05 – 1.5 MPa ± 0.25 MPa;
– ДЕМ-102С-1(2)-06 – 3.0 MPa ± 0.25 MPa;
– ДЕМ-105С-01 – 100 kPa ± 5 kPa;
– ДЕМ-105С-02 – 500 kPa ± 25 kPa.
3. If the order does not specify the value of return area for ДЕМ-102С-1, devices shall be set by the manufacturer to the minimum value of return area.
4. The customer is allowed to reset a setpoint and return area (for devices with controllable return area only) within the range of values specified in Table 1. –page 5 of the Catalog

2. Maximum operating pressure of the controlled medium, maximum allowable pressure of the controlled medium for ДЕМ-102С devices are given in Table 3.

Table 3

Designation

Maximum operating pressure of the controlled medium, MPa

Maximum allowable pressure of the controlled medium*, MPa

ДЕМ-102С-1-01

ДЕМ-102С-2-01

0.7

1.3

ДЕМ-102С-1-02

ДЕМ-102С-2-02

1.5

2.5

ДЕМ-102С-1-03

ДЕМ-102С-2-03

1.7

2.2

ДЕМ-102С-1-04

0.4

1.3

ДЕМ-102С-1-05

ДЕМ-102С-2-05

3.2

3.6

ДЕМ-102С-1-06

ДЕМ-102С-2-06

9.0

9.3

* Maximum exposure duration is 5 min

 

Maximum operating pressure of the controlled medium, maximum allowable pressure of the controlled medium for ДЕМ-105С devices are given in Table 4.

Table 4

Designation

Maximum operating pressure of the controlled medium, kPa

Maximum allowable pressure of the controlled medium*, kPa

ДЕМ-105С-01-1

800

1,300

ДЕМ-105С-01-2

800

1,300

ДЕМ-105С-02-1

1,500

2,000

ДЕМ-105С-02-2

1,500

2,000

* Maximum exposure duration is 5 min

 

3. Devices are designed for operation at contact loads specified in Table 5.

Table 5

Current type

Voltage, V

Switching power, W

Current, A

Сos j, as minimum

Frequency, Hz

min.

max.

DC

12 to 24

60

0.1

–

–

–

AC

127; 220

–

0.1

6

0.6

50 or 60

Notes
1 Minimum value of switched current is 0.1 A with maximum inductance for DC of 5 mH.
2 It is not allowed to use devices for switching minimum currents if they were used at other current loads.

Page 6 of the Catalog

4. The devices are resistant to and preserve parameters under conditions of operating decreased temperature of minus 60°C and operating increased temperature of plus 50°C of ambient air.

5. Temperature of the controlled medium shall be within minus 40 ± 2°С to plus 60 ± 2°С.

6. As to dust or water ingress protection, devices are of version IP64 as per GOST 14254-96.

7. Weight of the device is 1.0 kg as maximum.

Designation structure 

 

ДЕМ-102С

Note
1 – ШР type (socket with straight branch pipe) only in climatic version УХЛ3, 2РТТ type (socket with straight branch pipe) only in climatic version ОМ5;
2 – for device with controllable return area only;
3 – supplied as an option. – page 7 of the Catalog

Ordering information for ДЕМ-102С devices:

1) pressure switch ДЕМ-102С with return area directed towards pressure decrease in relation to the setpoint, with setpoint range from 0.1 to 1.4 MPa, with EN 175301-803 form А connector, climatic version УХЛ3, with an actuation setpoint of 0.6 MPa, with К1 installation kit:
“Pressure switch ДЕМ-102С-2-02-2, УХЛ3, setpoint 0.6 MPa, К1 ТУ 4212-147-00227471-2012”.

2) idem, if a setpoint actuation value is not specified in the order
“Pressure switch ДЕМ-102С-2-02-2, УХЛ3, К1 ТУ 4212-147-00227471-2012”.

3) pressure switch ДЕМ-102С with return area directed towards pressure increase in relation to the setpoint, with setpoint range from 0.2 to 3 MPa, with 2РТТ type connector, climatic version ОМ5, when supplied for export
“Pressure switch ДЕМ-102С-1-05-3, ОМ5, Э, ТУ 4212-147-00227471-2012”. 

ДЕМ-105С

Note
1 – EN 175301-803 form А in climatic version УХЛ3 and ОМ5, ШР type (socket with straight branch pipe) only with climatic version УХЛ3, 2РТТ type with climatic version В2,5 (socket with angular branch pipe), with climatic version ОМ5 (socket with straight branch pipe);
2 – supplied as an option.

Ordering information for ДЕМ-105С devices:

1) pressure switch ДЕМ-105С with setpoint range from 20 to 400 kPa, with return area directed towards pressure increase of the controlled medium in relation to the setpoint, with 2РТТ type connector, climatic version В2,5, with actuation setpoint at 100 kPa
“Pressure switch ДЕМ-105С-01-1-2, В2,5, setpoint 100 kPa ТУ 4212-147-00227471-2012”;

2) pressure switch ДЕМ-105С with setpoint range from 20 to 900 kPa, with return area directed towards pressure decrease of the controlled medium in relation to the setpoint, with EN 175301-803 form А connector, climatic version УХЛ3, with actuation setpoint at 400 kPa, if supplied for export, and with installation kit К1
“Pressure switch ДЕМ-105С-02-2, УХЛ3, setpoint 400 kPa, Э, К1 ТУ 4212-147-00227471-2012”.

3) pressure switch ДЕМ-105С with setpoint range from 20 to 400 kPa, with return area directed towards pressure decrease of the controlled medium in relation to the setpoint, with 2РТТ type connector, climatic version ОМ5
“Pressure switch ДЕМ-105С-01-2-2, ОМ5ТУ 4212-147-00227471-2012”.

Overall and mounting dimensions 

ДЕМ-105С

Figure 1 – Overall and mounting dimensions of ДЕМ-102С, ДЕМ-105С pressure switches

ДЕМ-102С

Figure 2 – Overall and mounting dimensions of ДЕМ-102С, ДЕМ-105С pressure switches with К1 kit

Electric circuit diagram 

ДЕМ-102С

Connector designation

Document designation

ХР1

XS1

Plug ШР20П3Ш7

Socket ШР20П3НШ7

ГЕ0.364.107ТУ

Plug 2РТТ20Б3Ш5В

Socket 2РТТ20КПН3Г5В

ГЕ0.364.120ТУ

Plug 2РТТ20Б3Ш5В

Socket 2РТТ20КУН3Г5В

ГЕ0.364.120ТУ

Base as per EN 175301-803

Electric connector GDA4080S62 form А

EN175301-803

Figure 3 – Electric circuit diagram of pressure switches ДЕМ-102С, ДЕМ-105С