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Condumax II Dew-Point Analyzers
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Condumax II Dew-Point Analyzers

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Condumax II is a fully self-contained hydrocarbon dew point analyzer, using the proven "Dark Spot" hydrocarbon dew point measurement principle from the highly successful Condumax instrument. Combining a hydrocarbon dew point cell and water dew point measurement in the same compact and lightweight EExd enclosure, Condumax II requires nothing more than mains power to operate. Condumax II provides a continuous local indication of key measurements in addition to analogue and digital outputs for remote monitoring. The instrument is also suitable for outdoor installation.



Hydrocarbon Dew-Point Measurement · Water Dew-Point Measurement (Optional) · Pressure Measurement · Hydrocarbon Dew-Point Analyser · Remote Interface (Optional for Indoor Safe Area Installation) · Specifications

Hydrocarbon Dew-Point Measurement

Measuring Technique

DARK SPOT™ fixed sample analysis. Direct photo-detection of hydrocarbon condensate at hydrocarbon dew-point temperature.

Sensor Cooling

Automatic via 3-stage Peltier effect electronic cooler under adoptive control

Maximum Range

Up to Δ 55ºC measurement depression from Main Unit operating temperature

Accuracy

±0.5ºC hydrocarbon dew point (single and multiple condensible component analysis)

Sample Flow (Standard Alarm)

0.03 m³/h
0.5 L/min

Measurement Frequency

6 cycles/hour (recommended)
12 cycles/hour (maximum)

Water Dew-Point Measurement (Optional)

Measuring Technique

Michell Ceramic Moisture Sensor

Range

Calibrated from -100 to +20ºC dew point

Accuracy

±1ºC from -59 to +20ºC dew point
±2ºC from -100 to -60ºC dew point

Sample Flow (Standard Alarm)

0.06 to 0.3 m³/h
1 to 5 L/min

Pressure Measurement

Units

MPa, barg, psig

Range

HCdp: 0 to 100 Barg
Wdp: 0 to 200 barg

Accuracy

±0.25 % FS

Hydrocarbon Dew-Point Analyser

Resolution

Hydrocarbon and water dew point: 0.1ºC
Pressure: 0.1 MPa and barg, 1 psig

Sample Gas Supply

Natural gas up to 100 barg, pressure regulated in sampling system.

Enclosure

EExd cast enclosure with removable glass window viewing port. Internally heated for condensation protection.

Sample Gas Connections

1/4" NPT female ports for both hydrocarbon and water dew-point channels. Sampling system: 6 mm OD Std / 1/4" OD optional.

Operating Environment

Indoors/Outdoors -20 to 50ºC. Max 95 % RH

Power Supply

90 to 264 VAC, 50/60 Hz, 200 W Main Unit;
300 W c/w indoor sampling system;
400 W c/w outdoor sampling system

Weight

Main Unit 22.5 Kg
42 kg (approx) c/w Sampling System (indoor)
57 kg (approx) c/w Sampling System (outdoor)

Integrated Display/keyboard

Touch screen with vacuum fluorescent display

Outputs

Modbus RTU, RS485 @ 9600 baud rate. Two 4-20 mA linear (non-isolated) outputs, user configurable for any combination of dew point or pressure parameters.

Alarms

Process and analyser status via software register and display annotation. Integrated low flow alarms for each sample flow. Analyser status fault flag 23 mA on mA output 1.

Remote Interface (Optional for Indoor Safe Area Installation)

Host Capacity

Up to 31 Michell EExd Process Instrumentation Range analysers in any combination of models via Modbus

Display

Backlit color 15 cm/6" LCD

User Interface

Integral mouse, on-screen keyboard

Function

View and modify analyser operating settings. Record parameters to file and view virtual chart recorder Analyser diagnostics.

Ports

LAN, USB2, Modbus Retransmission

Data Download

CSV (comma separated variable) format for easy import to Excel™

Remote Access

OPC (OLE for Process Control) over a LAN Imbedded web page/unique IP address for PC access. Remote data reading via modbus RTU.

Power Supply

100 to 280 V, 50/60 Hz

Plant Control Integration

ActiveX components to be used by software programmers for integration of Modbus protocol into a general plant software system.

Specifications

Hazardous Area Certification

ATEX: II 2 G EExd IIB + H2 T4 Tamb =60ºC CSA (US) certified to Class 1, Div 1, Groups B, C & D, T4

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