Analyser performance

Accurate measurements can be made from samples having viscosities up to 80 cP

Available ranges

From 0-1.6 barA standard (other spans and other units of measurement available)

Repeatability

+ 0.007 bar (0.1 psi)

Precision

Within ASTM D323 (ASTM D1267 for LPG)

Response time

Better than 50 seconds

Output signal

Range: 4-20 mA fully isolated loop powered and/or digital output depending on selected transmitter Out-of-service alarm contact signalling mains failure (or off) or bath temperature fuse blown.

2 sets c/o contacts rated at 25A @ 250V or 12A @ 120V

Sample pressure (g)

Depends on the back pressure at the analyser outlet but must normally exceed [outlet pressure (bar) x 2.5] + 7 bar. Standard max pressure 40 bar (580psi)

Sample temperature

Should remain within the range 25°C -50°C (77°F - 120°F). Fluctuations must be minimal and not exceed 5°C (9°F).

Sample flow

55-230 litres/hour (12-50 gallons/hour) depending on back pressure

Sample conditioning

Complete sample systems can be supplied to pre-condition process sample to the conditions required at the analyser inlet.

Sample disposal

Return to process or a recovery system. Sample recovery systems can be supplied.

Power supply

Voltage 115V or 230V ± 10% single phase. Frequency 50 or 60 Hz. Consumption 2.0 KVA

Cooling water

A supply of potable water at up to 135 l/h (30gal/h) and at a temperature <30°C (Maximum Pressure 7 barG) should be provided to carry away excess heat. The necessary coil is fitted as standard. If potable water is not available alternative cooling coil materials can be provided.

Oil for temperature bath

11 litres (2.5 gal) of Shell Thermia B or equivalent. Reid vapour pressure tests are carried out at 37.8°C (100° F), but with this analyser, temperatures up to 110°C (240°F) may be selected and controlled to ±0.1°C.

Local display

Gauge indicates absolute vapour pressure. 0 - 100% linear scale on the transmitter

Standard connections

Sample inlet 1/4" NPT (male)

Sample outlet 1/4" NPT (male)

Cooling water 1/4" NPT (female) IN

Cooling water 1⁄4/4" NPT (female) OUT

Electrical ISO M20 Standard (1/2" NPT NEC)

Signal out: As transmitter specification, either EExd or EExia with 4-20mA isolated output and / or digital output.

Explosion protection options

This analyser is ATEX certified for use in Zone 1 hazardous areas

II 2G EEx d e ia IIB T4 Certificate no. ITS 09ATEX16356X

Option: II 2G EEx de ia IIB + H2 T4 Certificate no. ITS 09ATEX16357X

Environmental protection

Will operate satisfactorily under normal ambient temperature conditions between 0 and 55°C (32 - 130°F) but should be sheltered from direct sun and rain - see options below.

Frost protection is recommended for water cooled analysers.

Dimensions

Width: 500mm Length: 900mm Height: 1400mm Weight: 180kg *Allow Extra for Access

Mounting

Floor fixing bolt holes (4 off 3⁄41⁄2" dia) at 448 mm (173⁄41⁄2") x 351 mm (1313/16") centres

Options

• Configuration for CSA local approval
• Cooling coil in Hastelloy C or Monel
• Digital bath temperature transmitter and/or indicator instead of spirit thermometer
• Vapour pressure of LPG to ASTM D1267 - How is this an option!?
• Choice of pressure transmitter to include HART, Foundation Fieldbus or Modbus communications. (Remote diagnostics from DCS or hand held communicator)
• Environmental protection to IP65
• ATEX Cert IIB + H2