HM3051 Intellectual Differential pressure transducer

• • • Features of Product • • •

☆ High accuracy, good    stability

☆ Compact structure, light weight, solid and vibration resistant

☆ Good compatibility, compatible    with the products in accordance with HART protocol made by the other    companies

☆ Support the user to    use handheld unit 272 / 275 of PC for commissioning of software and for real    – time instrument configuration during the instrument is running.

☆ May perform    processing of intellectual linearization for pressure signal to ensure higher    accuracy of measurement.

Medium to be measured:

Liquid, gas, or vapor

Range of measurement:

0 ~ 0.125KPa ~ 40MPa

Signal output:

4 ~ 20mA (expressed    with a code E)

4 ~ 20mA, overlapped    with HART digital signal (expressed with a code S)

Power supply of energization

12 ~ 45V DC (24V DC    generally)

Load characteristic:

RL ≤50 (VS – 12)    Ω 

Indicating gauge:

Optional pointer type    gauge and LCD

Explosion – proof:

a. Explosion –    isolating type d II BT4

b. Intrinsically safe    type in II CT6

Measuring scale and zero point:

Externally and    continuously adjustable

Positive and negative immigration:

The lower and upper    limit of the scale shall not exceed the scale limit after positive and    negative immigration.

Maximum positive    immigration: 500% of the minimum measuring scale

Maximum negative    immigration: 600% of the minimum measuring scale

Range of temperature:

The range of operating    temperature for the amplifier: -29 ~ +93℃

The measuring element    filled with silicon oil: : -40 ~ +104℃

Flange –type    transducer filled with high – temperature silicon oil: : +15 ~ +315℃; that filled with    general silicon oil: : -40 ~ +150℃

Static pressure and overloading pressure:

4, 10, 25, 32MPa

Humidity:

Relative humidity (RH)    0 ~ 100%

Volume intake capacity:

＜ 0.12cm3

Damping (step response):

Continuously    adjustable, between 0.2s ~ 1.67s generally when filled with silicon oil.

Starting time:

2s, preheating is    unnecessary.

Accuracy:

 ± 0.1% FS; ± 0.25% FS; ± 0.5% FS

Dead zone:

None (≤ 0.1%)

Stability:

Not exceeding the    absolute value of the basic tolerance for the maximum scale within six    months.

Influence of temperature:

Zero position    tolerance is ± 0.1% / 55℃,    the total tolerance is ± 0.2% / 55℃.

Influence of vibration:

On the any axial    direction, the tolerance is  ± 0.05% / g    of the upper limit of the measuring range when the frequency of vibration is    200Hz.

Influence of power supply:

Less than 0.005% / V    of the scale output

Influence of load:

The load has no    influence to it if the power supply is stable.

Influence of installing position:

0.24KPa zero point    tolerance may be generated, as a maximum, but it may be corrective, without    influence to the measuring scale.

Isolating membrane:    316LSST, Hastelloy alloy C, MONEL, or tantalum.

Gas exhaust / liquid    discharging valve: 316LSST, Hastelloy alloy C, MONEL

Flange and joint:    Electroplated carbon steel, 316LSST, Hastelloy alloy C, or MONEL

O – ring contacting    medium: NBR, fluorubber

Liquid filled: Silicon    oil or inertia oil

Bolt: Electroplated    carbon steel

Enclosure of    electronic parts: Low – copper aluminum alloy

Pressure – leading connecting part:

The connecting screw    hole on the pressurized vessel or chamber is 1 / 4 ~ 18NPT, the connecting    screw hole on the pressure – leading joint is 1 / 2 ~ 14NPT.

Connecting hole of the signal wire:

G1 / 2

Weight:

Approximately 3.5kg (excluding    accessories)

Standard accessories:

The flanged joints, gas    exhaust valves and liquid discharging valves and one book of instruction    manual have been provided for all the variants in the factory before    delivery.