Product 67

Sophy Gasson — Tue, 20 Nov 2007 12:31:00 GMT

Autosal Salinometer 8400B
Intro: Guildline's recognised industry standard Autosal Salinometer for measuring salinity in the laboratory.

Guildline’s Autosal 8400B Laboratory Salinometer is the recognised industry standard instrument for measuring salinity in the laboratory. The Autosal employs a unique continuous flow system, where the sample water is drawn under low air pressure from the original sample bottle. A high stability temperature control bath and heat exchanger maintain this sample at a precisely defined temperature during analysis, avoiding the need for temperature compensation. The accuracy is better than 0.002 Equivalent Practical Salinity Units (PSU) and has been achieved by improvements in the temperature stability of the bath.

The unique continuous sample flow system offers a marked improvement in speed and convenience over the conventional salinometer method requiring several discrete sample volumes for flushing and measurement. Only 50mm of sample water are required to achieve a final reading, including flushing and semi-automatic operation gives the final digital readout of conductivity ratio in less than one minute.

The 8400B has a redesigned sample bottle holder, providing easy attachment for original sample bottles. There is a bottle data logging facility built in as standard, which provides output of conductivity ratio, bottle number, bath temperature and standardization reference number.

Bath temperature is selectable from 18°C to 33°C in 3°C steps and there is a window for viewing sample water under test flowing through the conductivity cell. Operating controls include conductivity range select, display function switch for zero, standby or read, bath temperature control check, standard seawater standardization set, temperature bath drain and fill controls, and a sample flow rate control which permits deep cold water samples to be measured immediately.

Particular care has been taken to improve the power supply to the 8400B in comparison to earlier Guildline salinometers, with better input filtering and a new cable harness. There is a heater failure lamp included on the front panel and a front sub-panel reduces wear on the internal hoses when the front door is opened for maintenance. There are also significant changes internally to improve ease of maintenance, such as access to the pumps.

Features:

Accuracy < ± 0.002 Salinity
Range 0.004 to 76 mS/cm
Improved temperature stability
No temperature compensation required
Small samples & rapid measurements
Data logging standard
Improved maintainability

Related Products:

P-Series (IAPSO Standard Seawater)

Linearity Pack

Data Sheet: 8400B Autosal
Application Notes: AppNoteSalAccFinal

Product 68

Sophy Gasson — Tue, 20 Nov 2007 12:36:00 GMT

Portasal Salinometer 8410A
Intro: Guildline 8410A Portasal is a truly portable, high precision instrument from the world leader in salinometers.

Guildline 8410A Portasal is a truly portable, high precision instrument from the world leader in salinometers. The Portasal will deliver salinity calculations on-board ship with laboratory level accuracy. It measures accurate conductivity ratios and displays calculated salinity directly as well as measured parameters. Oceanographers require reliable shipboard salinometers to augment the sophisticated CTD’s now available and Guildline’s 8410A is the perfect solution. The enhanced computer interface capability of the 8410A, its ease of set-up and operation along with Guildline’s reputation for quality, will ensure confidence in the integrity of your on-board salinity measurements.

For 20 years Guildline’s Autosal 8400B has enjoyed the reputation of being the finest salinometer available. The measuring technique used in the Portasal is identical to that used in the 8400B and it combines the latest microprocessor technology with the time-tested measurement principles and reliability of the Autosal. It is housed in a compact, protected package that is easy to use while providing faster calculations and improved data logging capability.

Careful design has ensured that the Portasal retains a high level of performance in a convenient package for field or shipboard use. The 16 character display may be configured through the keypad, or the interface, to display several parameters including conductivity ratio, salinity, temperature and reference values. The display also allows for 16 lines of header information to be entered in from the keyboard. A completely new design has evolved for the mechanical packaging incorporating requirements specifically requested by users of salinometers. These include a light yet rugged fiberglass case and front panel, quick release hose fittings for the front panel, and a new clamp/release system for holding samples under test.

The Portasal unit is considerably easier to use than earlier salinometers. The built-in intelligence permits a variety of calculations to be carried out with faster collection of data, and output to an easy to read display. Servicing and inspection are also extremely simple in this new mechanical package.

Guildline Instruments has been careful to use their extensive salinometer experience to provide a product that will be a valuable asset to any oceanographer. It is based on a measuring technique which has been time proven to be accurate and reliable.