3151 dp transmitters manufacturer

HH3151 HART Pressure Transmitter,
4-20mA, Explosion-proof, HART (work with hart communicators),

so, you can calibration your pressure transmitters by hart communicators,

like: AMS TREX Device Communicator.

HH3151 HART Smart pressure transmitter that provides simplified field change,

while communicating asset management data utilizing the latest HART 7 specification.

Features of HART pressure transmitters

HH3151 – HART Pressure Transmitter is a complete line of level, differential, gage,
and absolute pressure transmitters.

Models include the flush diaphragm and sanitary flange,
for liquid level measurement, Hydrostatic Tank Gauging – HTG,
and wetted parts in several materials for suiting process requirements.

Features of HART pressure transmitters
HART pressure transmitters

All models can be supplied with various remote seals. 

Update output current in 100 ms with 0.75 µA/bit resolution;

Improved performance due to dedicated math co-processor;

Multi-drop operation mode;
PID control function;

Supports DTM and EDDL;

Bi-directional flow measurement;

With FMEDA analysis and MTBF of 244 year

What is a HART transmitter?

HART transmitters are considerably more complex.

HART transmitters have the same pressure input and 4-20 mA output,

but also to the analog current loop output,

there are some digital variables and settings contained in the device.

Accessing these digital parameters requires the use of a HART configurator or communicator,

and is critical to maintaining these devices.

Like the hart communicator 375.

In fact, with many HART devices,

there is no way to maintain them without being able to gain access to the digital parameters.

What is HART calibrator?

HART calibrator is hart communicators that we used to calibrate instruments,

like: pressure transmitters, DP transmitters, level transmitters,

flow meters, and temperature transmitters.

The HART Communication Protocol (Highway Addressable Remote Transducer)

is a hybrid analog+digital industrial automation open protocol.

Its most notable advantage is that it can communicate over legacy 4–20 mA analog instrumentation current loops,

sharing the pair of wires used by the analog-only host systems.

We use this protocol in HART calibrator.

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HART communicators (like HART 475),

are the most normal HART calibrator.

A proprietary calibration process ensures best temperature compensation,

limiting thermal effects on the sensor output.

It is suitable for process control industries worldwide,

and provides a cost-effective solution to using conventional HART transmitters (like the HART 475 field communicator).

What is HART pressure transmitter?

HART pressure transmitters
HART pressure transmitters

HART pressure transmitters,
for configuration via a distributed control system (DCS) or HART communicator.

HART pressure transmitters are
compatible with the Highway Addressable Remote Transducer (HART) communication protocol,

which is the most popular standard used with smart field devices,
by the process control industry.

HART functionality enables the transfer of pressure transmitter data,

via an AC digital signal which uses the 4-20mA analog output signal as a carrier,

thus eliminating the need for extra wires and connectors.

How to calibrate HART pressure transmitters

A pressure transmitter is one of the most common instruments in a process plant.

To assure its accuracy, it needs to be calibrated.

But what do you need to calibrate it and how is it done?

You may know how to calibrate a pressure transmitter?

Or, how to calibrate differential pressure transmitter?

Then, calibrate HART pressure transmitters,
kind like pressure transmitter calibration using hart communicator.

Pressure transmitter manufacturers have improved accuracy and technology,

designed into these smart pressure measurement devices.

Many conventional calibration tools have become inadequate or unable,

to test and calibrate these high accuracy pressure transmitters.

Better test solutions are required.

The pressure transmitter’s purpose is to convert the pressure signal,
into an electric signal,

that is easy to transport into the control system,

which may be located far from the pressure measurement location.

Most the pressure is converted into a 4 … 20 mA standardized signal.

Anyhow, the transmitter’s accuracy is about,

how it converts the input pressure into the mA signal.

If you want to know that, then you need to calibrate the transmitter.

To calibrate a pressure transmitter, you need:

loop supply (if not connected to the controls system’s loop supply);
a pressure generator to generate input pressure;
an accurate calibrator to measure the input pressure;
an accurate calibrator to measure the output mA current.

Typically, the pressure transmitter is a HART protocol transmitter,

so in case there is any need to adjust/trim it,

you will need to use a device supporting HART communication.

How to calibrate HART pressure transmitters?

Explaining how to do the calibration would result in quite a long text,
so we have put together a video for you instead.

The video shows you how to calibrate and trim a HART pressure transmitter.

Please have a look at the video:
How to calibrate HART pressure transmitters

To perform the test:

Isolate the transmitter from the process being measure and its loop wiring.

If measuring the mA signal across the transmitter test diode leave the wires intact,
but note this method does not give the best mA measurement accuracy.

Connect the mA measurement jacks of the 754 to the transmitter.

Connect the pressure module cable to the 754,
and connect the transmitter test hose from the hand pump to the transmitter.
Press the HART button on the calibrator to see the configuration of the transmitter.

Press HART again and the calibrator,
will offer the correct measure/source combination for the test.

If documenting the calibration press As-Found,
input the test tolerance and follow the prompts.

If the measured mA signal at the test points is found within tolerance the test is complete.
If not, change is required.
Select, adjust, and trim the pressure zero, mA output signal and input sensor.

If you still do not know, how to check pressure transmitter?  Or, how to calibrate a pressure transmitter.

Just contact us!

HH3151 HART Smar Explosion Proof Pressure Transmitter

HH3151 HART Explosion-proof pressure transmitters are available,
in a wide range of specifications, easy to install and use, safe and explosion-proof.

They can be used in petrochemical, electric power,
metallurgy, pharmaceutical, food processing and other industries.

Products follow the “IEC” standard,

and explosion-proof pressure transmitters are renowned.

The company’s high-precision, high-stability pressure sensor assembly, through high-reliability amplifier circuit.

And precision temperature compensation,
the absolute or gauge pressure of the measured medium is converted into:

4 ~ 20mA, 0 ~ 5VDC, 0 ~ 10VDC and 1 ~ 5VDC,
and other standard electrical signals.

High quality sensors, hermetically sealed soldering technology and a complete assembly process,
ensure excellent quality and performance.

The product is available in a variety of interface styles,
and a variety of lead styles to best meet customer needs,
and is suitable for use with a variety of measurement and control equipment.

The HH3151 HART explosion-proof pressure transmitter,
consists of an integrated intelligent sensor and peripheral circuits.

The sensor part is composed of a pressure sensor,
a signal modulation circuit, a dedicated digital processing chip,
a temperature sensor and a data memory,
and the peripheral electronic circuit part is composed of an LCD display,
function keys and an EMC circuit.

The pressure signal is converted into an electrical signal by the pressure sensor,
and the electrical signal is modulated,
and sent to a dedicated digital processing chip for data processing,
and then converted into a 4~20 mA output signal,
corresponding to the pressure signal,
and the HART digital signal is superimposed on the current signal for communication.

Explosion-proof pressure transmitters are used in the following industries:

Compact explosion-proof pressure transmitter

Compact explosion-proof pressure transmitter

Industrial site process pressure detection

Laboratory pressure calibration system

Navigation and shipbuilding Aviation and aircraft manufacturing

Air separation equipment and thermal power unit

Energy management system

Hydraulic and pneumatic measurement and control system

HART Pressure Transmitter photos

HART pressure transmitter connection
HART pressure transmitter connection
HART pressure transmitters
HART pressure transmitters

Transmitters are sensors with an electrical transmission,
output for indication of a difference between two pressures.

They are designed for use with compatible gases and liquids,
applied to the pressure and reference ports.

Sino-Instrument offers more than 20 types of pressure transmitters, DP transmitters, smart transmitters.

Most of our transmitters can work with HART protocol.

A wide variety of DP/pressure transmitters are available to you. 

What are differential pressure transmitters?

Sino-Instrument supplies Differential Pressure Transmitters For differential pressure measurement;

pressure ranges 0 … 1 mbar up to 0 … 70 bar

What is a Differential Pressure Transmitter?

(You can take this article as a Beginner’s Guide to Differential Pressure Transmitters ) Differential…

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HART Pressure Transmitter
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