Product description:

SWP-T51 series differential pressure transmitter using a new type of differential pressure transmitter the world advanced technology development and manufacturing has superior performance, with fully sealed chamber δ as the sensing element, no mechanical moving parts so as to improve the reliability of the. Differential pressure transmitter can accurately measure the low pressure, vacuum, liquid level, density and flow. Widely used in petroleum, chemical, textile, electric power, food, paper, pharmaceutical and other industrial collar.

Technical features

High precision, good stability

Two-wire system.

Small size, light weight, strong vibration resistance

Range, zero external continuous adjustable

No mechanical moving parts, reliable operation, easy maintenance

Unidirectional overload protection

A full range of unified structure, strong interchangeability of components

Explosion proof structure, all-weather use

Working principle

The high and low pressure of the measured medium enters into the high and low pressure chamber of the measuring element and acts on the isolation diaphragm

The force signals are transmitted to the center measuring diaphragm, center diaphragm is a measurement of the elastic element tension, on both sides of the differential pressure acting on the center measuring diaphragm generates a pressure difference corresponding to the deformation, the deformation displacement and the measured pressure difference is proportional to the displacement of the capacitor plates cause the capacitance changes. The electronic circuit detects the change in capacitance and amplified into a current signal corresponding to the. If the low pressure chamber passes through the atmosphere, the high pressure chamber is connected with the measured medium. Similarly, if the low pressure chamber is a vacuum, the high pressure chamber is connected with the measured medium.

Circuit principle

Electrical connection

technical parameter

Measurement of dielectric liquids, gases and vapors

Measuring range 0-0.16KPa to 0-40MPa

Operating voltage 12-45 V DC (typically 24 V DC)

Output signal 4-20 mA DC

Explosion proof grade flameproof Exd II BT5

Intrinsically safe Exia II CT6

Range and zero external continuous adjustable

The maximum positive and negative migration is 500% of the minimum adjustment range

The maximum negative mobility is 600% of the minimum calibration range

When the damping is filled with silicone oil, the 0.25~1.67 S can be adjusted continuously

Start time 2 S

Temperature range ambient temperature -20~85 C

Medium temperature -40~100 DEG C (flange type high temperature silicone oil 15~315 C)

Storage temperature -40~100

Accuracy 0.2 0.5

Effect of temperature on ± 0.2%/10K

Static pressure effect on micro differential pressure ≤ ± 10%

Differential pressure ≤ ± 0.5%

High hydrostatic pressure ≤ ± 2%

The structure of the isolation of membrane material of stainless steel 316L C276 Hastelloy Monel alloy tantalum

Discharge valve of stainless steel 316L C276 Hastelloy Monel alloy tantalum

Flange joint of 316L stainless steel and nickel plated carbon steel Hastelloy Monel alloy C276

Type O sealing ring fluorine rubber nitrile rubber filled liquid silicone oil or inert oil

Aluminium alloy protective grade of carbon steel nickel plated case IP65

The NPT1/4 center distance of the flange of the press connecting piece 54mm

Joint NPT1/2 or M20× 1.5 male thread

The ball cone seal, 50.8, 54, 57.2mm the distance from the center of the joint

Signal line connection hole G1/2

Weight about 5.4Kg

Product specification

Serial number

Name

Model

measuring range

Maximum working pressure (MPa)

Accuracy grade

One

Basic differential pressure transmitter

SWP-51DP

0-1~6KPa

Six point nine

Zero point two

0-6 KPa ~1MPa

Fourteen

Zero point five

Two

High hydrostatic pressure differential transmitter

SWP-T51HP

0-6 KPa ~2.5MPa

Thirty-two

Zero point two five

Zero point five

Three

Differential pressure transmitter

SWP-T51DR

0-125~1250Pa

Six

Zero point five

Four

Differential pressure flow transmitter

SWP-T51DL

0-1~6KPa

Six point nine

Zero point two five

0-6~250KPa

Fourteen

Zero point five

Five

Remote differential pressure transmitter

SWP-T51DP

0-6~250KPa

Zero point five

Remote pressure transmitter

SWP-T51GP

0-0.16~10MPa

Six

Relative pressure transmitter

SWP-T51GP

0-1KPa~40MPa

Zero point two five

Zero point five

Seven

Absolute pressure transmitter

SWP-T51AP

0-6KPa~10MPa

Zero point two five

Zero point five

Eight

Liquid level transmitter

SWP-T51LT

0-6KPa~1MPa

Two point five

Zero point two five

Zero point five

Transmitter type designation

Model

Code

Explain

SWP-T51

.

.

.

.

.

Varieties

DP

Differential pressure transmitter

HP

High hydrostatic pressure differential transmitter

DP

Micro differential pressure transmitter

DL

√ Δ P differential pressure flow transmitter

AP

Absolute differential pressure transmitter

GP

Pressure transmitter

LT

Flange differential pressure transmitter

DP/GP

Remote differential pressure transmitter

Range

Two

0-125~1250Pa

Three

0-1~6KPa

Four

0-6~40KPa

Five

0-40~250KPa

Six

0-0.16~1MPa

Seven

0-0.4~2.5MPa

Eight

0-1.6~10MPa

Nine

0-6~25MPa

Zero

0-10~40MPa

output

E

4~20mA DC

F

4~20mA DC (DR only)

J

4~20mA DC output is √ Δ P

S

Intelligence

Structural material

Flange joint

Exhaust / exhaust valve

Isolation diaphragm

Filling liquid

Twenty-two

316 stainless steel

316 stainless steel

316 stainless steel

silicone oil

Twenty-three

316 stainless steel

316 stainless steel

Hastelloy C-276

Twenty-four

316 stainless steel

316 stainless steel

Monel

Twenty-five

316 stainless steel

316 stainless steel

tantalum

Thirty-three

Hastelloy C

Hastelloy C

Hastelloy C-276

Thirty-five

Hastelloy C

Hastelloy C

tantalum

Forty-four

Monel

Monel

Monel

Additional function

M1

0-99% linear indication

M2

0-99% square root indicator

M3

31/2LCD digital display

B1

Pipe bending bracket

B2

Plate bending bracket

B3

Pipe bracket

D1

The pressure relief valve is located at the upper part

D2

The pressure relief valve is located at the lower part

Note

NPT1/2 taper pipe thread connection block

C1

NPT1/2 pressure joint, rear welding Φ 14 pressure pipe

C2

M20× 1.5 male T-shaped connecting block

C2

M20× 1.5 T-shaped threaded block shaped joint other gaddin

D

Flameproof Exd II BT4

I

This type of Exia II CT6