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Explosion-proof Thermocouple

Item ID:51
Measuring Range
Explosive-proof Grade
List Price
$150.00
Price
$130.00
Quantity
+- (100in stock)
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1. Application of Explosion-proof Thermocouple

Usually it is corollary used with display instruments, recording instruments, electronic calculation, etc.

Explosion-proof Thermocouple is used to directly measure temperature (range from 0 ° C ~ 1300 ° C) of liquid, steam, gas material and solid surface where hydrocarbons or other explosive materials exist on production site.


2. Characteristics of Explosion-proof Thermocouple

· A variety of explosion-proof form, good explosion-proof performance;

· Spring-press temperature sensor with good anti-vibration property

· Wide temperature measurement range;

· High mechanical strength and good pressure resistance;


3. Working Principle of Explosion-proof Thermocouple

Explosion-proof thermocouple makes use of gap explosion-proof principle, junction boxes with sufficient strength and other component are designed, all parts which may produce sparks, arcs and dangerous temperature components are sealed in the junction box cavity, when the explosion occurred in the cavity, It can be flameout and cooling through the gap of joint face, so that the flame and temperature after the explosion do not transmit to the outer chamber, thereby performing explosion-proof.


4. Main Technical Parameters of Explosion-proof Thermocouple

Product performance standards

IEC584

IEC1515

GB/T16839-1997

JB/T5518-91

GB3836


5. Insulation Resistance at Normal Temperature

The insulation resistance between the electrode and the jacket pipe > 1000Ω.m, when the explosion-proof thermocouple is at an ambient temperature 20 ± 15 ° C, relative humidity less than 80%, the test voltage is 500 ± 50V (DC).


6. Certification List

Explosion-proof

Explosion-proof Certification No.

Certification Authority

d‖BT4

GYB96450

NEPSI

d‖BT4

GYB96453

NEPSI

d‖CT5

GYB98339

NEPSI

d‖CT5

GYB97197

NEPSI

ia‖CT6

GYB99412

NEPSI


7. Measuring Range and permissible error

Model

Graduation

Permissible error level

I

II

Permissible error value

Temperature Range °C

Permissible error value

Temperature Range °C

WRN

K

±1.5°C

-40~375

±2.5 °C

-40~333

±0.004ltl

375~1000

±0.0075 ltl

333~1200

WRM

N

±1.5°C

-40~375

±2.5°C

-40~333

±0.004 ltl

375~1000

±0.0075 ltl

333~1200

WRE

E

±1.5°C

-40~375

±1.5°C

-40~333

±0.004 ltl

375~800

±0.004 ltl

333~900

WRF

J

±1.5°C

-40~375

±1.5°C

-40~333

±0.004 ltl

375~750

±0.004 ltl

333~750

WRC

T

±1.5°C

-40~125

±1°C

-40~133

±0.004 ltl

125~350

±0.0075 ltl

133~350