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Industry Information
Description of explosion-proof electrical contact bimetal thermometer products
2012-2-1 9:41:56

(以下简称温度计)是一种可用于爆炸性气体环境测量中、低温的现场测量和自动控制仪表。 Explosion-proof electric contact bimetal thermometer (hereinafter referred to as thermometer) is a kind of field measurement and automatic control instrument that can be used in the measurement of explosive gas environment at low temperature. Can be used to directly measure the temperature of gases and liquids,

Automatically control or signal the temperature change of the measured medium. This series of explosion-proof bimetal thermometers have been approved by the National Instruments Explosion-proof Safety Supervision and Inspection Station (NEPS1).

Relevant requirements of GB3836.1-2000 and GB / T3836.2-2000,

Technical parameters

(1) Electrical contact type; upper and lower limit contacts.


(2) Accuracy level: 1.5

(3) The set point error does not exceed 1.5 times the basic error difference limit.

(4) Electrical parameters: Contact rated power: 10VA


Maximum working voltage: 220V AC

Maximum allowable contact current: 0.7A

(The working voltage is recommended below 36V, but should not be less than 12V to ensure reliable contact contact)

(5) Nominal pressure of protection tube: 6.3MPa (static pressure)

(6) Ambient temperature: (-20 + 40) ℃

(7) Material of detection element: 1Cr18Ni9Ti

(8) Explosion-proof grade: ExdIICT4 ~ T6

(9) Explosion-proof certificate number: GYB06868

Product detailed description The WSSX series explosion-proof electrical contact bimetal thermometer housing is made of aluminum alloy. The aluminum alloy housing is used to separate the circuit that may generate sparks and arcs from the meter and the external gas mixture of the case to achieve insulation.

Explosive purpose.


产品性能符合BG3836.1-2000《性气体环境用防爆电气设备第1部分:通用要求》及GB3836.2-2000《性气体环境用防爆 The performance of explosion-proof electrical contact bimetal thermometers conforms to BG3836.1-2000 "Explosion-proof electrical equipment for sexual gas environments Part 1: General requirements" and GB3836.2-2000 "Explosion-proof for sexual gas environments"

Electrical equipment-Part 2: Standard for explosion-proof electrical equipment "d".


Explosion-proof electrical contacts Bimetal thermometers have electrical contacts-mechanical electrical contacts. When the temperature of the measured medium changes, the thin shaft on the free end and the steering transmission mechanism drive the pointer and the moving contact to rotate, indicating on the dial

When the temperature changes, when it is in contact with or disconnected from the fixed contact (upper and lower limit contacts), the relays and contactors in the circuit system are activated to achieve the purpose of automatic control and alarm.


The WSSX series explosion-proof electric contact bimetal thermometer is made by winding one end of a bimetal sheet made of a spiral tube, and the other free end is connected with a pointer, which rotates as the temperature changes and drives the pointer to indicate the temperature.

Single-needle indicating thermometer. It is the temperature measurement of liquid, steam, gaseous medium and solid surface in the range of -80 ~ + 500 ℃ in the process of the presence of carbides in the production sites of petroleum, coking, chemical, pharmaceutical and other enterprises.


The main technical parameters

Nominal diameter of the dial: 100


Thermal response time: ≤ 40s


Explosion-proof grade: DIIBT4


Rated power: 10VA


Maximum working voltage: 220V


Maximum working current: 0.7A


Specifications:


Model temperature measurement range ℃ Accuracy class Protection tube material specification Installation device

WSSX-410B -80- + 40
-40- + 80
0-50
0-100
0-150
0-200
0-300
0-400
0-500
1.5 1Cr18NI9Ti
304
316
316L
Hastelloy C-276
H.AIIoyc-276
75
100
150
200
300
400
500
750
1000
Without fixture thread
WSSX-480B
WSSX-411B movable external thread
WSSX-481B
WSSX-412B movable female thread
WSSX-482B
WSSX-413B fixing flange
WSSX-483B
WSSX-414B fixed thread
WSSX-484B
WSSX-415B ferrule thread
WSSX-485B
WSSX-416B ferrule flange
WSSX-486B


外壳采用铝合金制成,通过铝合金外壳把仪表内可能产生火花、电弧的电路与表壳外爆炸性气体混合物隔开,从而达到 WSSX series explosion-proof electrical contact bimetal thermometer case is made of aluminum alloy. The aluminum alloy case is used to separate the circuit that may generate sparks and arcs in the instrument from the explosive gas mixture outside the case.

The purpose of flameproof.


The performance of explosion-proof electrical contact bimetal thermometers complies with BG3836.1-2000 "Explosion-proof electrical equipment for explosive gas environments-Part 1: General requirements" and GB3836.2-2000 "Explosion-proof electrical equipment for explosive gas environments"

Equipment-Part 2: Standard for explosion-proof electrical equipment "d".


Explosion-proof electrical contacts Bimetal thermometers have electrical contacts-mechanical electrical contacts. When the temperature of the measured medium changes, the thin shaft on the free end and the steering transmission mechanism drive the pointer and moving contact to rotate, indicating the temperature on the dial

When the contact value or contact point of the fixed contact (upper and lower limit contacts) is opened or closed, the relay and contactor in the circuit system are activated to achieve the purpose of automatic control and alarm.


The WSSX series explosion-proof electric contact bimetal thermometer is made by winding one end of a bimetal sheet made of a spiral tube, and the other free end is connected with a pointer, which rotates as the temperature changes and drives the pointer to indicate the temperature.

Single-needle indicating thermometer. It is the temperature measurement of liquid, steam and gas medium and solid surface in the range of -80 ~ + 500 ℃ in the process of the presence of explosives such as carbides in the production sites of petroleum, coking, chemical, pharmaceutical and other enterprises.


The main technical parameters


Nominal diameter of the dial: 100


Thermal response time: ≤ 40s


Explosion-proof grade: DIIBT4


Rated power: 10VA


Maximum working voltage: 220V


Maximum working current: 0.7A