Promet EExd natural gas dew point meter

Promet Eexd can provide single channel and dual channel humidity measurement, and electronic pressure readings can be integrated into a field installed explosion-proof enclosure. The user interface can display fluorescence readings and touch button switches. This product features a well-designed comprehensive sampling system with optimal sample filtration, pressure reduction, and flow control, as well as installation and application options that meet specific user needs.

Simple explosion-proof installation

Promet EExd is explosion-proof certified and can be used in IEC1 and 2/NEC Class 1 and 2 hazardous areas. The main equipment (electronics and sensors) and related sampling systems can be installed in convenient locations near pipelines or processes, and provide gas sampling and ventilation connections. The measuring instrument and sampling system each require a low-power single AC power supply. No need for isolation devices or safety grounding, saving costs and inconvenience for users.

Excellent sensing technology

Promet EExd sampling Michell ceramic humidity sensor provides unparalleled reliability and good performance for over 1000 natural gas and petrochemical owners. Thick film and thin film semiconductor technology combined with metalized ceramics create extremely durable sensors with a measurement sensitivity of up to 10 ppbV for moisture content and a maximum withstand voltage of 138 barg (2000 PSI). Unlike previous alumina technologies, the natural immunity of ceramic sensors to pressure shocks eliminates any risk of sensor failure during debugging or shutdown, while the sensor's superior inertness provides excellent resistance to chemical corrosion, even in extreme acid gases with H2S concentration levels. Ceramic sensors respond to the measured gas water vapor partial pressure, which is directly related to the dew point temperature. Each Promet EExd sensor is calibrated in a certified laboratory by Michell and can be directly traced back to NPL (UK) and NIST (USA) standards. Accurate craftsmanship ensures optimal accuracy of moisture content within ± 10% of the measured value.

Promet EExd natural gas dew point meterhighlight

EExd Explosion proof Certification - IECEx, ATEX, CCSAUS, and TC TR Ex

Can be installed in hazardous areas

Single channel or dual channel measurement

• Moisture content, dew point, and pressure measurement

• Traceable to NPL (UK) and NIST (US) calibration

• Range -120~+30 ° C dew point, 0.001~30000 ppmV

• Optional * remote access

• Compatible with acidic gases

On site calibration and maintenance

application

Natural gas ethylene glycol dehydration

Offshore export pipeline natural gas

• Gas pipeline monitoring

• LNG production

• Catalytic reforming recycle hydrogen

Ethylene raw materials from polymer raw material factories

• Production of special gases

Promet EExd natural gas dew point meterTechnical Specifications

Channel configuration single channel and dual channel Shufen parameters dew point ° C and ° F

Automatic pressure compensation for water content:

PpmV for natural gas and ideal gas, lbmmscf and mg-m-3 for natural gas

Natural gas and ideal gas can be inputted by the user with pressure dew point

The calculation of natural gas water content is based on ISO 18453 or IGT # 8, depending on the customer's preference

Analyze pressure barg, MPa, and PSI

Sensor technology - Micellar ceramic humidity sensing technology

Calibration range -120 º C dp~+30 º C dp

1 ppbV ~ 30,000 ppmV

0 to 250 barg

Calibration range -100 ° C dp~+20 ° C dp

10 ppbV ~ 23,000 ppmV

Precision Dew Point: ± 1 ° C (-59.9~+20 ° C dq) Water Content: ± 10% of Reading

Dew point: ± 2 ° C (-60~-100 ° C dq) Water content: ± 20% of reading

Analysis pressure: ± 0.25% FS

Measurement resolution 0.1 ° C: -80~+20 ° C dp 1 ° C: -100~-80 ° C dp

Display resolution dew point: 0.1 ° C

Water content: Proactively mark 5 digits

MPa and BarG: 0.1, Psig: 1.0 Resolution: 0.1 ° C (+20 ° C dp~-80 ° C dp)

1°C （-80°C dp ~ -100°C dp）

Temperature coefficient algorithm compensation (-20~+50 ° C)

HMI: Keyboard interface through glass capacitive touch screen

Display vacuum fluorescence

Up to 150 data log scrolls for data recording

Each log records time, date, moisture content, and channel pressure values

Users can set recording intervals of at least 5 minutes and at most 60 minutes

Each measurement channel has two non isolated 4-20 mA outputs for communication and output,

The maximum load of 500 Ω can be customized by the user to set the range and parameters

Modbus RTU @ 9600 baud rate

Alarm: Each channel has two voltage free contacts, one for the process

Value, one is the instrument value. Communication can also be achieved through Modbus

The temperature control inside the main equipment casing can provide condensation protection and stable analysis conditions

Model Explosion proof EExd

Structural casting of copper free aluminum material

Surface acid salt base gas, polyester P9010 powder coating (black) meets the requirements

BS3900 requirements

Maximum operating pressure 138 barg (2000 PSI)

Sample gas connection 1/8 "NPT (F)

Sample gas flow rate 0.5~5.0L per minute

Sample gas flow alarm optional

Power supply 90~260 V AC, 50/60 Hz, 180 W main equipment

Operating Environment Indoor/Outdoor -20 ° C~+60 ° C Maximum 95% RH. Shadow Position

certification

Hazardous Area Certification ATEX II 2G Ex d IIB+H2 GbT5 (-40 ° C~+44 ° C) T4 (-40 ° C~+60 ° C)

IECEx Ex d IIB + H2 GbT5 (-40°C ~ +44°C) T4 (-40°C ~ +60°C)

cCSAus Class I, Division 1, Group B, C & D T5 (-40°C ~ +44°C) T4 (-40°C ~ +60°C)

TR CU 012 1Ex d IIB+H2 T5, T4 Gb XT5 (-40°C ~ +44°C) T4 (-40°C ~ +60°C)

Certification mode GOST-R, GOST-K