Dew point measurement |
measurement |
Dark Spot ™ Fixed sampling analysis, direct optical measurement of hydrocarbon condensation at hydrocarbon dew point temperature |
Transmitter cooling |
Automatic cooling, using a 3-level Peltier effect electronic cooler |
maximum range |
Until Δ 55 ° C, according to the operating temperature of the host |
resolution |
0.1°C, 0.1°F |
accuracy |
± 0.5 ° C hydrocarbon dew point |
Sample gas flow rate |
0.03 to 0.06 m3/hour (0.5 to 1.0 Nl/min) - Low flow alarm standard |
Measurement Frequency |
6 times/hour (recommended) 12 times/hour (maximum) |
Dew point measurement |
measurement |
Micellar ceramic humidity transmitter |
Equipment selection |
Dew Point ° C and ° F Water Dew Point Moisture content in lbs/MMscf; Mg/m3, ppmV (converted to IGT # 8 or ISO18453) |
resolution |
0.1°C, 0.1 ° F dew point 0.1 lbs/MMscf, 1 mg/m3 ppmV |
range |
Testing range from -100 to+20 ° C dew point |
accuracy |
±1°C , - Dew point from 59 to+20 ° C ±2°C , - Dew point from 100 to -60 ° C |
Pressure measurement, hydrocarbon dew point analysis, pressure |
host |
MPa, barg, psig |
resolution |
0.1 MPa and barg, 1 psig |
accuracy |
Hydrocarbon dew point ± 0.25 barg Dew point ± 0.5 barg |
Analysis of hydrocarbon and water dew points |
Sampling gas |
Natural gas up to 100 barg, pressure regulation in sampling system |
casing |
316 stainless steel material structure, movable lid Rubber shock absorber device for ease of operation and transportation Eexd cast shell with movable observation port Internal heating for condensation protection |
Sampling gas connection |
Sampling input, filter with bypass exhaust port, drainage system Sampling system: 1/4 "NPT internal thread interface Quick connection to Mininess ® hose Process connection: 1/4 "NTP external thread |
operating environment |
Indoor/outdoor 0 to 40 ° C; Up to 95% RH * alarm record on page 2 |
power supply |
110 or 230 V AC, 50/60 Hz, 300 W |
weight |
60kg (approximately) |
data record |
150 data records, storing data for at least 24 hours (stored in non permanent storage) Single record hydrocarbon dew point and pressure analysis, water dew point and process pressure Interface touch screen with automatic statistical analysis; Maximum value, minimum value, average value during continuous recording period |
Combination of display and keyboard |
Touch screen with vacuum fluorescent display |
output |
Modbus RTU, RS485 @ 9600 baud rate; Dual 4-20 mA linear (non isolated) output, allowing users to configure any combination of dew point or pressure parameters; Additional external junction boxes need to be connected |
alarm |
Register for hydrocarbon and water dew point alarms through software; Comprehensive low flow alarm for each sampled fluid |
authentication certificate
ATEX II 2 G EExd IIB + H2 T4 Tamb = -40 to +60°CCSAUS certifi ed to Class I, Div 1, Groups B |