Aneriod Barograph For Sale Online, Buy Barograph New Zealand

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Aneriod Barograph

RRP :	$1790.00 NZD
Price :	$1590.00 NZD

CODE 207MQ

Have you got this in Stock� YES

The Captions Choice

This is the most popular model
for larger yachts and ships, and
for land based weather bureaus,
with many in use in the UK
Met Offices and other European
weather services, as well as by
individual weather watchers, worldwide.

The optional choice of polished brass or
flat chrome movements (see Pilot) is
purely aesthetic; each has the
same high accuracy and reading
precision.

Why Buy a barograph?
A barometer displays the present pressure and the change of pressure since it was last set using a marker hand on the dial. A barograph records the history of the pressure on a paper chart, wrapped around a clock-driven drum. Underway on a fully crewed vessel, the logbook serves as a detailed record of pressure changes. On overnight anchorages, a printed barograph trace is a convenient way to learn how the pressure changed during the night when there was no watch to record it.

Technical Information

Description of barographs
Aneroid barographs are used to measure and record the history of atmospheric pressure. The measuring element in our barographs is a set of 7 aneroid capsules with a diameter of 62 mm. This set is manufactured of a copper-beryllium alloy that essentially eliminates age-hardening, hysteresis, and elastic after effects that could otherwise degrade the accuracy. The influence of temperature on the set of aneroid capsules and the transmission system is compensated by use of bimetal components over the full measuring range and for temperatures between -30 to +40 �C (-22 to 104 �F). All contacts in the movements are jeweled to reduce friction. Fischer barographs are used by navies and weather services, worldwide.

For each model there is a choice of mechanical wind-up clockworks or quartz [ model in photo is quartz ]clockworks, which can be shifted in an instant for daily, weekly or monthly revolution. The actual periods are 25.6 hr, 176 hr, and 783 hr. The recording instruments are delivered complete with fibre pens and a year's supply of recording charts. Weekly charts are the standard that are provided unless requested otherwise. Note that the mechanical clocks do not have a monthly mode. Weekly rotations are the most common used with barographs.
Fischer instruments are unique in offering an option on each model with enhanced dampening for barograph use at sea. After you chose your model and timing option, the extra dampening can be selected. There is no need for this option for land based operations.
The paper charts are the same size for all models: 92mm tall by 302 mm long. Charts marked in inches of mercury are also available on request.
We have some models in stock, but not all. Normal delivery time otherwise is 5 weeks. Each instrument is hand made, numbered, and calibrated at the factory in Germany and a certificate guaranteeing its performance is included. If there are any questions at all about the functions or options of the instrument, or delivery time, please call us before ordering 0800 693583

Measuring Ranges
Measuring range�� used for altitude
955 to 1055 hPa
930 to 1030 hPa
905 to 1005 hPa
880 to 980 hPa
855 to 955 hPa�� 0 to 150 m above sea level
150 to 350 m above sea level
350 to 600 m above sea level
600 to 850 m above sea level
850 to 1,100 m above sea level