ul. Bytomska 122
41-940 Piekary Śląskie
POLSKA
www.hydroelektra.pl
tel. +48 32 307 02 77
Temperature Sensors
Intrinsically Safe Temperature Sensor type ICZT-2
Application:
Intrinsically safe temperature sensor type ICZT-2 is intended to supervise the temperature of devices components, as well as non-aggresive liquids: water, oils, oil-water emulsions etc.
The sensor cannot be used to control the temperature of aggresive media.
The temperature sensors type ICZT-2 meet the requirements of Directive ATEX 114 (2014/34/UE) of European Parliament and Council regarding rapprochement of legislation of European member states, for protective devices and systems used in areas in danger of explosion. It also meets the Polish legislation; the Ordinance of the Minister for the Development dated 06 Jun. 2016 (Dz. U. 2016 pos. 817) for essential requirements for protective devices and systems used in areas in danger of explosion.
Intrinsically safe construction of sensors allows to use them in excavations in methane and non-methane mines, in spaces marked „a”, „b” or „c” of methane explosion danger and in spaces classified as A or B of coal dust explosion danger.
Performance
Temperature sensor is equipped with bimetallic bistable thermostat. Under the influence of temperature, opens or shorts the sensor contacts, as a result closes or cuts the control loop of a device, where the sensor was adopted. Thereby the automatic stop of a device is possible, in case the permissible temperature exceeds its limits.
Technical data:
|
Intrinsically safe parameters for contacts 1 – 2:
max voltage Ui |
50 V |
|
Intrinsically safe parameters for contacts (1,2) – 3:
max voltage Ui |
50 V |
| Temperature of opening/closing the contact | 30-110 °C (Table 1 i 2) |
| Type of contact | NC or NO |
| Wire length | up to 20 m |
| Fitting thread | flanged, 4 bolts M8x20 |
| Explosion-proof mark | I M2 Ex ia I Mb |
| Max. working pressure | 30 bar |
| Ambient temperature | -20°C ÷ +40°C |
| Air humidity | up to 95% temp. 40°C |
| Altitude relative to sea level | -2000 ÷ 1000 m |
Table 1: Temperatures of opening and closing the contacts of sensor, contact NC
| Temperature of opening the contact (°C) | Temperature of closing the contact (°C) |
|---|---|
| 30 ± 3 | 15 ± 4 |
| 40 ± 3 | 25 ± 6 |
| 50 ± 3 | 35 ± 6 |
| 60 ± 3 | 45 ± 6 |
| 70 ± 3 | 55 ± 6 |
| 80 ± 3 | 65 ± 6 |
| 90 ± 3 | 75 ± 6 |
| 100 ± 4 | 80 ± 7 |
| 110 ± 4 | 90 ± 7 |
Table 2: Temperatures of opening and closing the contacts of sensor, contact NC
| Temperature of closing the contact (°C) | Temperature of opening the contact (°C) |
|---|---|
| 50 ± 6 | 35 ± 3 |
| 60 ± 6 | 45 ± 3 |
| 80 ± 6 | 65 ± 3 |
| 90 ± 6 | 75 ± 3 |
| 100 ± 7 | 80 ± 4 |
Hydro Elektra is able to provide not only the sensors with threshold temperature and/or the liquid level measurement but also with continuously reading parameters using a current or voltage interface.
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