Series SBW flameproof intrinsically safe type, with a thermocouple (resistance ) temperature transmitter is DDZ-S series of instruments in the field mounted temperature transmission unit. It sets the thermocouple (resistance ) and the transmitter as a whole, direct measurement of various industrial processes - 200 ～800 ℃liquid, steam and gas medium temperature, the temperature change and heat resistance thermocouple temperature or the output electrical signal proportional to the4 ～20mADC unified output signal, sent to the display, recording regulation of the instrument or computer. Flameproof intrinsically safe type thermocouple (resistance ), temperature transducer explosion-proof performance by the state promulgated the " electrical apparatus for explosive atmospheres" ( GB3836) design and manufacturing standards, thermoelectric properties in line with the international IEC standards, and by the National Instruments explosion-proof safety supervision station test qualified, the explosion-proof certificate No.: GYB 9401,9402,9403,9404,9405,9406,9407,9408,97334,97335,98114,98115,98116,98117, is the ideal explosive environment temperature sensor transducer integrated products, can be used for combustible gas or combustible liquid steam dangerous places, intrinsically safe with thermocouple (resistance ) temperature transmitter must associated with the equipment safety gate together to form the explosion-proof system, explosion-proof certificate No.: GYB 93265,93266,97336,97337. It as a new generation of temperature transmitter, can be widely used in metallurgy, petroleum, chemical, electric power, light industry, textile, food, national defense and scientific research departments.

Intrinsically safe type thermocouple temperature transmitter with explosion-proof cable distributed parameter control range: the total inductance≤ 2mH. Total electric capacity≤ 0.06uF. At the same time using the associated equipment safety gate, selection of models for the MTL728, Z928, LB928, safety gate, see specific wiring manufacturer instruction.

Flameproof intrinsically safe type, with a thermocouple (resistance ) temperature transmitter characteristics:

The transducer assembly is miniaturization, in flameproof intrinsically safe type thermocouple (resistance ), the junction box to become an integrated temperature transmitter, used in industrial field.

As an integrated temperature transmitter, in the industrial field direct output from 4 to20mA signal, this will not only eliminate expensive wire compensation, but also improves the signal long distance transmission of anti jamming capability.

The transducer assembly of high precision, low power consumption, using a wide range of ambient temperature, stable and reliable work, and due to the adoption of silicon rubber sealing structure, seismic, temperature transmitter, moisture resistance, explosion proof, suitable for a variety of harsh field environment in the installation.

Selection of explosion-proof with thermocouple (resistance ) isolation temperature transmitter, the input and output ends of isolation, increased resistance to interference ability, more suitable for computer use.

Main technical index

Platinum thermal resistance precision grade: B

Division No.: Pt100. (0 ℃resistance values)

R=1000.12 Ω( B grade)

Allowable deviation:Δ t (℃) + (0.30+0.005, t, ) ( class B)

Input: K, E: thermocouple

Heat resistance: Pt100

Output: in the range of 4 ～20mA DC signal output and heat resistance of the input signal into a linear or with a thermocouple input millivolt signal into a linear, and the heat resistance of the measured temperature is linear or linear thermocouple measured temperature.

Basic error: formula△=Δ 1+ Δ2

Δ 1thermocouple ( resistance ) allowable deviation

The basic error of ±0.5%FSΔ2 transmitter

Transmission: two-wire system

Transmitter power: the lowest voltage12V, maximum 35V, rated voltage24V.

Load limit load resistance is calculated by the following equation:

RL ( max ) =50 ×( Vmin 12) (24V when the load resistance is in 0 ～600 Ωchoice within the range, rated load250 Ω. )

A. environment temperature:25℃ to 80 ℃(dangerous place is not higher than 70 DEG C ).

B. relative humidity:5%～ 95%.

C. mechanical vibration: F ≤55Hz, amplitude of <0.5mm

D. ambient air does not contain the cause transmitter corrosion medium.

Explosion proof grade:

Flameproof type: DⅡ BT4DⅡ BT6or DⅡ CT4DⅡ CT6

Intrinsic safety type: IBⅡ BT4IAⅡ BT4IAⅡ CT6( a type ), MTL728, Z928, associated equipment type LB928.

Shell protection class: IP54

□model representation

S DDZ-S series electric unit combination instrument

B transmission unit

W temperature

Without ) - General

Z thermal resistance

R thermocouple

□

Output properties of 2) output and the corresponding temperature

4) output and the corresponding input signal is linear

□

0) general type sensor

Thermocouple0) E nickel chromium copper nickel

1) K nickel chromium-nickel silicon

2) S platinum platinum-rhodium10 -

Thermal resistance1) Cu50

2) Cu100

3) Pt100

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Circuit category7) isolation type ( with temperature measuring element )

8) non isolated ( with temperature measuring element )

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Device type 0) gauge type

1) intelligent

2) digital display type

3) a pointer type

4) intelligent digital display type

5) the smart pointer type

6) with a communication protocol

□

Fixed form2) fixed thread

4) fixed flange

6) fixed thread taper protection tube

8) internal screw fixation

9) thermal protection tube

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Terminal box of flame-proof form4)

□

Design number S ) introduction of platinum resistance

0) thermocouple

1) insulation type ( armoured)

2) the ground type ( armoured)

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Element number 3) on three type

□

Add K ) armored

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Environmental characteristics of D ) flameproof

I intrinsically safe type )