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SHGVA-PT-402 Explosion-proof Programmable Thermostats

Product Description

The SHGVA-PT-402 programmable thermostat is used to maintain preset temperature conditions and control external electrical devices and mechanisms in hazardous areas. It is designed specifically for systems where avoiding overheating is critical (the "Limiter" function shuts off equipment in case of overheating, and a luminaire on the housing allows visual monitoring of the thermostat's status from a distance).

Liquid and gaseous media, surfaces, solid and bulk products can be used as objects of temperature control.

Temperature control is accomplished using one or two PT100/100P sensors (not included). Remote monitoring is provided via an RS-485 Modbus RTU interface.

Advantages

  • Temperature control in a wide range from -50 to +600°C with a measurement accuracy of ±1°C;
  • "Limiter" function - in case of overheating, the thermostat visually signals the problem, transmits status information via RS-485 and blocks the equipment;
  • An additional overheating signaling element - a luminaire on the housing allows you to visually monitor the thermostat's status from a distance (duplicates the "Overheating" LED indicator);
  • Dual indication: digital temperature indication (on seven-segment indicators) and LED status indication;
  • Possibility of connecting 2 temperature sensors for more precise control;
  • Possibility of placing the sensor at a distance of up to 100 meters from the device body;
  • Remote monitoring capability based on RS-485 Modbus RTU interface;
  • Protection from unauthorized access to set parameters ("Block" mode);
  • 3.4-wire measurement circuit (allows to eliminate measurement errors typical for a two-wire circuit);
  • Resistance to electrical interference (due to the use of a thermistor as a measuring channel);
  • Simplicity and convenience of connection (the use of push-in terminals does not require additional tools, and it is possible to feed wires into the terminals at an angle of 45°).

Frequently bought together

Compliance with standards

GOST IEC 60079-1-2011
GOST R IEC 60079-0-2011
GOST 30852.10-2002
GOST 14254-2015

Certificates

Markings

Explosion protection marking
1Ex db [ia Ga] IIC Т6...Т5 Gb
Ex tb [ia Da] IIIC T85˚C...Т100°С Db
Marking of mining equipment
RN1, RN2
Degree of protection
IP66/IP67/IP68
IK10
Installation
Category II for gas subgroups IIA, IIB, IIC, zones 1, 2.
Underground workings, non-hazardous for gas, non-hazardous for dust and gas.
Zones non-hazardous for dust and gas.

Technical data

Ambient temperature, °C
-60...+60 (T6/T85°C)
-60...+85 (T5/T100°C)
-60...+85 (for normal mine and general industrial designs)
Maximum switching voltage, V
~240; ⎓250
Maximum voltage switched by the feedback contact (FC), V
~240; ⎓250
Operating voltage range, V
~85…264; ⎓120…370
Maximum current switched by the feedback contact (FC), A
30 (Соsȹ=1)
Maximum current switched by the power output, A
40 (Соsȹ=1)
Number of power outputs
1
Power consumption, VA
no more than 11
Enclosure material
Aluminum alloy with alloying modifiers
Temperature measurement error, °C
±1
Temperature measurement range, °C
-50…+600
Temperature sensor cable length, m
no more than 100
Temperature limit setting step, °C
1
Resistance sensor type
100P/Pt100
Maximum length of RS-485 network line, m
1200
Maximum number of thermostats in one RS-485 circuit without an interface repeater, pcs.
32
Maximum number of thermostats in one RS-485 circuit, pcs.
247
Power output type
Electromagnetic relay contact
Number of inputs for connecting temperature sensors
2
Weight, kg no more
10 (excluding cable glands and plugs)
Climatic category
NF1 (as required NF2, NF3, NF4, NF5, HL1, HL2, HL3, HL5, T1, T2, T3, T5, MU1, MU2, MU3, MU4, W2.1 , W5 )

Temperature sensor is not included in the delivery package.

Recommendations for choosing a temperature sensor
Parameter name SHGVA-PT-402
Sensor type Pt100 (α = 0.00391 °C-1)
100P (α = 0.00385 °C-1)
Internal conductor connection diagram 3-wire
4-wire
Admission class A, B (standard), C
Ex-marking 0Ex ia IIC T5 Ga
1Ex ia IIC T5 Gb
Providing IPXX protection level IP66
Parameters of intrinsically safe circuits Um = 250 V Ui ≥ Uo = 3.47 V;
Ii ≥ Io = 100 mA;
Pi ≥ Po = 87 mW;
Ci ≤ Co = 100 μF;
Li ≤ Lo = 8 mH;

Design parameters

* the diameter of the holes for cable glands is agreed with the customer.

Options

Options, accessories and versions
Marking
Non-explosion-proof design
/PROM
Mining normal design
/RN

Additional information

Submit request

Configurator
Number, sizes and sides of cable glands
Quantity
Additional description
0 / 300

Drag files here

CAD " GORELTEX ", questionnaires, necessary documents

Remaining: 20.00 MB
or
Model Breakdown
SHGVA–PT–402 - 1X 2X (3X) / 4X – TU 27.12.31-037-72453807-2017
1X - Number of cable glands
2X - Cable entry type
3X - Input side Sides of cable entry locations
4X - Options, accessories and versions

Example: SHGVA-PT-402–2KNV1MN(A)-1KNV2MN(G)–TU 27.12.31-037-72453807-2017

Where to buy GORELTEX products

Saint Petersburg

Head office and production site

Telephone
Address
193149, Leningrad region, Vsevolozhsk district, Novosaratovka village, Rabochaya street, house 9, building 1
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Moscow

Sales office

Telephone
Address
123112, Moscow, Presnenskaya Embankment, 6, building 2, business complex "Imperia Tower", floor 12, office No. 15
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Kazan

Sales office

Telephone
Address
420061, Russia, Republic of Tatarstan, Kazan, st. Nikolay Ershova, 1A, Korston Business Center, floor 11, office No. 1110
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Tyumen

Sales office and production site

Telephone
Address
625031, Russia, Tyumen, Shcherbakova St., 160G
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