HL3151 Diff Pressure Transmitter
Intelligent diff pressure transmitter, ± 0.075% accuracy, signal output 4-20 mA, and superposition HART. The communication protocol is suitable for the measurement of pressure, differential pressure and liquid level in large and medium-sized equipment and production process control.
Features
Diff Pressure / differential pressure sensor using high-precision silicon sensor technology
The whole temperature zone 15-point automatic pipeline calibration is linear, and the temperature influence is small The range migration ratio can reach 100:1 Good long-term stability
Electronic modular design
Working configuration, integrated LCD disp lay and HART communication remote transmission All parameters can be modified by the header key configuration Functional monitoring and remote data reading of sensors and electronic modules to ensure the stability of use
Process connection is flexible and optional
Working configuration, integrated LCD disp lay and HART communication remote transmission All parameters can be modified by the header key configuration Functional monitoring and remote data reading of sensors and electronic modules to ensure the stability of use
Integrated calibration and temperature supplement
The factory accuracy of the HL3151 diff pressure transmitter products is better than 0.075% The measurement accuracy of the product is of grade 0.1%, except for the pressure / differential pressure transmitter with the remote transmission device. The measurement accuracy is evaluated separately according to the actual needs
Application
For monitoring ventilation ducts, filters and fans in HVAC areas as well as for level measurement in closed pressurized tanks.
Product Description
The HL3151 diff pressure transmitter measurement element adopts the world ‘s leading high-precision silicon sensor technology, ± 0.075% accuracy, signal output 4-20 mA, and superposition HART. The communication protocol is suitable for the measurement of pressure, differential pressure and liquid level in large and medium-sized equipment and production process control The density of the static liquid can be measured together with the orig inal measurement unit The volume or mass of the liquid can be measured together with the orig inal measurement unit With the orig inal measurement matching to measure the flow of gas, steam and liquid.
Technical Parameters
| Technical parameters | General purpose: DC 10.5 ~45V |
Power supply | Primary safety explosion – proof: DC 10. 5 ~ 26V ± 0.005% / 1V |
Power impact | DC 4 – 20mA + HART protocol |
| Output signal | 0-600 Ω (when DC24V) Note: A load resistance of standard 250 ohms is required for communication with the HART manipulator |
| Permissible load | The longest connection cable is 2KM (0.75~1.25 square RVVP cable for control instrument, twisted pair cable over 1km) |
| Communication cable | Note: load resistance 250~600 Ω, including cable resistance, at DC24 working voltage Note: load capacitance below 0.55 mF Note: load inductance below 3.3 mH Note: with the price of the power line is 15cm, please avoid parallel wiring |
EMC suit | EN 1326- 1:2006 |
| Response time | 90ms |
| Damping period | The time constant can be adjusted within another 0 ~99.9S |
| Autostability coefficient | Can be adjusted within 0-2% |
| Medium temperature | – 40 ~ + 85℃ |
HL 3151D Series Intelligent Diff Pressure / Differential Pressure Transmitter
· Output characteristics: 4 ~ 20 m ADC current output, Superimpose the HART communication protocol, Precision, 0.075% level, P 6 KPa full range
· Liquid membrane material: conventional 316L stainless steel, Optional ordering of tantalum, Ha C
· Main use: differential pressure measurement of the medium, The accompanying measuring element provides for the density of the measuring medium, volume, mas,s and flow
· Process connection: M20 * 1.5 external thread, 1 / 4 NPT-18 spread, 1 / 2 NPT-14 internal thread, G1 / 2 external thread
· Additional introduction: can be matched with two valve group, three-valve group, and domestic five-valve group, Splint mounting thread M10
HL 3151T Series Direct Mounted Intelligent Diff Pressure/Voltage Transmitter
· Range: 0-100Pa 0MPa…4
· Measurement accuracy : 0.075% level, P 40 KPa full range
· Liquid diaphragm material : conventional 316L stainless steel,optional tantalum, Ha C, Monel and spray ing tetrafluoride process
· Main use: pressure measurement of pipeline medium
· Process connection: M 20 * 1.5 external thread, 1 / 2 NPT-14 internal thread, G 1 / 2 external thread, can be converted to other forms of process connection
· Additional introduction: It can be paired with a two valve manifold, needle valve, and heat dissipation device
HL 3151LT Series Of Intelligent Differential Pressure / Liquid Level Transmitter
The differential pressure transmitter with single flange diaphragm seal is mainly used for the continuous measurement sheet of liquid level in the process industry Flange diaphragm seal, or double flange seal, low pressure side strap capillary
· Range: 0-6 KPa… 10MPa, and corresponding conversion level
· Measurement accuracy : 0.075% level, P 40 KPa full range
· Liquid diaphragm material : conventional 316L stainless steel, optional tantalum, Ha C, Monel and spraying tetrafluoride process
· Main use: pressure measurement of pipeline medium and liquid level measurement of atmospheric pressure tank body
· Process connection: regular HG20592 standard, American standard and Japanese standard can be customized
· Additional introduction: it can be matched with the 316 material flushing ring
