Model D Polarimeter

The Model D Polarimeter is a well established, high quality, low cost instrument capable of measuring the rotation of optically active samples; and matches the performances of many digital instruments in the market today.

The well known variable half waveplate effect is used to obtain a balance between the two halves of a circle when viewed through an eyepiece. The reading is then taken from the scale.

The instrument accepts sample tubes of lengths of up to 220mm and is used for measuring concentrations and optical rotations in the food, sugar, flavours, fragrance, pharmaceutical and chemical industries. The Model D Polarimeter is also extensively used in schools and colleges as an educational tool.

For dark samples which absorb light, the Model D Polarimeter has provision for adjustment allowing more light to pass through the sample.

There are a number of accessories which may be required when using the Model D Polarimeter including sample tubes, temperature control equipment and calibration standards. For calibration purposes verification of the Model D Polarimeter can be made against fixed value quartz control plates. The instrument must be used in conjunction with a sodium light source (also supplied by Bellingham + Stanley).

Scales

Angular 0 to 360° sub-divided to 1° Micrometer drum gives direct reading to 0.05° and by estimation to 0.02° Sugar -30° to + 130° sub-divided to 1° Micrometer drum gives reading to 0.1° and by estimation to 0.05°

Description
Code
31-01	Polarimeter Model D with angular and sugar scales for tubes up to 220mm in length with variable half shadow, including one 200mm sample tube.
59-01 59-06	Sodium lamp outfit complete with control gear; lamp mounted on transformer case. 230V~ ±10%, 50/60Hz 110V~ ±10%, 50/60Hz
59-03 59-08	Sodium lamp mounted on instrument base. 230V~ ±10%, 50/60Hz 110V~ ±10%, 50/60Hz
59-50	Spare sodium lamp bulb

Shipping Specifications
Model D Polarimeter without sodium lamp: Gross Wt. 125 kilos Nett Wt. 9.5 kilos Meas: 71x47x34 cm	Sodium Lamp Outfit - 230V Gross Wt. 11.0 kilos Nett Wt. 9.1 kilos Meas: 70x45x27 cm	Sodium Lamp Outfit - 110V Gross Wt. 13.0 kilos Nett Wt. 10.0 kilos Meas: 70x45x27 cm

Bellingham & Stanley Ltd pursue a policy of continuous product development and improvement,
and as such, information given on this Data Sheet may be updated or withdrawn without notice