Lovibond Tintometer Model F Visual Colorimeter for Lovibond RYBN Colour

Lovibond Tintometer Model F Visual Colorimeter

The Lovibond Tintometer Model F is a visual colorimeter designed to optimise the use of Lovibond glass filters and to express colour in terms of Lovibond Red, Yellow, Blue and Neutral units. Two adjacent fields of view are seen through the viewing tube: the product in the sample field and a white reflective surface in the comparison field, observed side by side under the same illumination.

The Lovibond glasses are brought into the comparison field by a simple system of sliding racks until a visual colour match is found; the colour is then read directly in Lovibond units, from 0.1 to 79.9 Red and Yellow, 0.1 to 49.9 Blue and 0.1 to 3.9 Neutral, in steps of 0.1 unit. Neutral glasses can be introduced into the sample field to dull products that are too bright for a good match. The instrument measures products that transmit light as well as opaque solids, powders and pastes (an optional solid sample accessory pack may be required for light-reflecting products).

The Model F is built for easy maintenance: the white plastic liner of the sample chamber can be removed for cleaning after a spillage and replaced at intervals to keep the interior white, and the separate filters in the racks allow single glasses to be cleaned or replaced. This page describes the standard Model F (order no. 18 00 00), for applications including fats and fatty oils, bleached lac, liquid chemicals and pharmaceuticals. The manufacturer also offers a separate Model F (BS 684) version (order no. 18 02 70) for animal and vegetable fats and oils measured according to BS 684 Section 1.14, ISO 15305 and AOCS Method Cc 13e-92.

Key Features

• Glass colour standards housed in 11 durable racks
• Prismatic optical system for improved colour matching, with a balanced field of view
• Fully adjustable viewing system with integral blue filter for light standardisation
• Diffused tungsten-halogen light source that approximates to daylight
• Transmittance and reflectance modes for transparent, translucent and opaque samples
• Accepts optical cells with a path length of up to 153 mm (6 inch)
• Replaceable white sample chamber liner for easy cleaning
• External, low-voltage regulated power supply, switchable for 220/110 V mains
• Fabricated sheet steel housing with a tough, textured paint finish

Package Contents

• Model F instrument
• Complete set of 11 racks with permanently coloured glass filters for the Lovibond colour scale (Red 0.1 - 0.9, 1.0 - 9.0, 10.0 - 70; Yellow 0.1 - 0.9, 1.0 - 9.0, 10.0 - 70; Blue 0.1 - 0.9, 1.0 - 9.0, 10.0 - 40; Neutral 0.1 - 0.9, 1.0 - 3.0)
• Sample chamber liner with white reference
• Spare white reference
• A pair of spare bulbs
• Rectangular fused glass cells: one 1 inch and one 5¼ inch
• Colour analysis record sheet and instructions

Optional Accessories

• Optical glass cells with path lengths up to 6 inch
• Conformance filters and certified colour reference solutions for quick quality control checks on instruments and operators
• Replacement sample chamber liners, single (order no. 18 10 39) or pack of three (order no. 18 01 10)
• Solid sample accessory pack for measuring light-reflecting products in Lovibond units (order no. 18 01 00)