Compac |
World famous Compac dial indicators, test indicators and dial bore gages are the finest Swiss-made measuring instruments available. These gages have all the features which have made Compac so desirable: durability, long life, and accuracy in which every machinist concerned with performance should invest. Since the 1940's these Compac indicators have been the best quality available. Initially an independent Swiss company, Tesa Division of Hexagon Metrology is the current manufacturer of these tools. There's nothing compact about Compac. In fact, they even took on Compaq the computer giant to lay claim to the name but, guess who won? In 2005 they took the step of reducing the number of inch-reading models in their catalog and focusing on the metric. Some of their previous inch models are now sold under the Mercer name. |
Compac test indicator |
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Single revolution (standard range) Mutliple revolution (long range) - inch-reading horizontal, vertical and parallel page 43
- metric horizontal, vertical and parallel page 108
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Compac dial indicator |
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Small dial (40 mm) Large dial (58 mm) Long range (25 mm and more) - long range metric dial indicators page 44
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Compac dial bore gauge |
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Spare Parts |
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Because we are direct importers, virtually every Compac spare part is always in stock and can be shipped immediately. Large orders may require 4-6 weeks. There are no minimum purchases required. Compac spare parts lists and drawings are available on page 72. We will gladly fax you any parts lists which are not available on-line. We suggest visiting page 15 for some Do It Yourself information. |
Repairs |
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We are an authorized repair service for Compac gages with factory training and experience since 1959. Because we have all repair parts in stock, these gages can be repaired in just a few days. They'll be rebuilt to meet the manufacturer's original specifications. Your satisfaction is guaranteed. |
Contact Points |
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Compac dial indicators come supplied with a standard M2,5 threaded contact point. Many different contact point configurations are available for specific applications. Please consult our contact points lists on page 133. Compac test indicator contact points are available in carbide or ruby as shown on page 21. |
Holders and Attachments |
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Test indicators feature dovetails so that any number of different holders and attachments can be used. Please see accessories on page 36. |
Lug backs and flat backs |
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Compac dial indicators come supplied with flat backs. The stems have 8 mm diameters and ideally you would mount the indicator using this stem. However, if you need a different kind of back please consult our parts list on page 72. |
Deciphering model numbers |
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- G models have large dials
- L models have long contact points
- A models read in inches
- E models are waterproof
- B models have bezel locks
- S models have single revolutions
- T models have a maximum reading pointer
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Mercer Top Quality |
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Mercer Top Quality Series (Swiss made models) are nothing but Compac indicators in disguise. If you need to replace your Mercer dial indicator, make a selection from the Compac models shown on these pages. If you have a Mercer model number we'll be happy to cross-reference it for you. Spare parts, with the obvious exception of dials, are the same. Since Compac has discontinued most of its inch-reading indicators, you can probably still find the same models sold with the Mercer name. See Mercer on page 170. |
Compac metric |
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Some Compac gages are available in inch or metric versions. The letter A indicates inch readings. It comes from the French word anglais (English).The absence of the letter A indicates metric readings. While many parts are interchangeable, contact points and many gears are not. Check the parts lists carefully. Other manufacturers' metric indicators are usually outfitted with yellow dials for the American market. Compac metric indicators, made for the world market, ship with white dials. If this is a significant issue, then please request yellow dials which can be installed for an additional fee. Note that metric Mercer indicators have yellow dials since these are specifically marketed for countries using the Imperial system. (Who came up with that name?) |
Discontinued Compac models |
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Tesa, the manufacturer of Compac, is removing some of the slow moving Compac items from its catalog. In January 2005 they announced that model CL4 dial gage with electrical contacts as well as accessories R13 and R43 are discontinued. The following models are no longer available: CL4-532, CL4-532G, CL4-555, CL4-556, and CL4-556G. In September 2005 they announced the discontinuation of most of the inch reading dial indicator models. |
A brief history of Compac indicator |
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In the 1950-60's Compac of Geneva, Switzerland, manufactured the best selling indicator and dial bore gage imports in the United States. These models were sold with the name Alina. They were so well built and such favorites of machinists of the time that, even today, we receive these indicators for repair. In Europe the indicators were sold with the name Parvus. In a misguided effort to build a sturdier gage, the manufacturer changed the models to klunkers that had all the grace of a bread box. These were the short lived IXL series. Just a few years later, they introduced the current Compac models. They have had minor changes in the past 10 years but nothing that affected the over-all look or performance. The Compac indicator is designed to last: sturdier than the Bestest and less costly than the Interapid. It fits perfectly in-between. They are also marketed in the UK with the name Mercer. For several years they were sold in the USA with the name SPI. Tesa of Renens, Switzerland, is the current manufacturer of Compac indicators as well as Bestest, Tesatast and Interapid indicators. Swiss made Compac test indicators are now featured in the latest Brown & Sharpe, Tesa and Hexagon catalogs. |
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This page's most recent revision: 28 February 2008
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