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Mercer
Premier Quality Dial Indicator
Swiss Precision Dial Gauge with large 58 mm Ø dial

Mercer indicators are made in Switzerland. Except for the name on the dial they are the same as Compac indicators. These are some of the best inch-reading as well as metric dial indicators available. There is a very limited choice of models, however.

Why go through the trouble trying to buy a dial indicator that is hardly ever available? It's like the gourmand scouring the vineyards of southern France looking for that one vintage that appeals to him, while the rest of us are happy buying whatever is on sale at the local liquor store.

We can buy any number of dial indicators, right off the shelf, (or right off the boat from China) at a fraction of the cost and that is apparently perfectly fine with the majority of people in the trade. It is the connoisseur who is happiest with a priceless gem who will seek out these masterpieces of gaging.

Mercer indicators have 8 mm diameter stems and use 2.5 mm contact point threads. Stem sleeve adapters are available to make them fit 3/8" fixtures. They are identical to Compac indicators, using the same stainless steel racks which give these a long useful life. While Compac has discontinued most of its inch reading models, you can find the equivalent still available with the Mercer name.

It's important to note that these come with flat backs. If you need lug backs, you'll have to order them separately.

 

Mercer model 213-1 shown above with 58 mm diameter dial.


The tolerance markers are adjustable and could be removed if they get in the way. The crystal is a flat snap-on style. Use the blade of a large screw driver to pry off the crystal. Now you can remove the tolerance markers and you can press the crystal back into place. This is also the way to replace the crystal if that becomes necessary. Replacement or different style contacts (including ruby and nylon) can be found on
page 133. You'll be looking for metric M2.5 threads.

A factory certificate of calibration and declaration of conformity are included. The indicators come in a cardboard storage box.

If you are not sure which dial type is correct for your application, please take a look at page 139.

 

Mercer number

Graduations

Range

Dial

Total error

Catalog No.

Stock

Discount Price

213-1

.0005"

.4"

0-25-50

.0007"

01426021

check stock

check price

240-1

.0001"

.2"

0-50-0

.0006"

01426028

check stock

check price

250-1

0.01 mm

10 mm

0-50-0

17 µm

01416020

special order

251-1

0.01 mm

10 mm

0-50-100

17 µm

01416021

check stock

check price

Lug Back with 1/4" hole for all above models see page 61

Stem adapter (converts 8 mm stem to 3/8")

03560101

21.50

 

The following models are no longer in production as of February 2015: 01426026, 01426027, 01426031, 01426020, 01426029, 01416034, 01416035.

 

Mercer indicator repair service

 

Long Island Indicator Service has 55 years of experience repairing these Swiss made Mercer (Compac) dial indicators. If yours ever malfunction or need a tune-up, don't hesitate to contact us. Please see page 30 for details.

A note to repair shops: Mercer Series S, shown on this page, uses the same parts as Compac 550 Series. See page 72.

The old-style Mercer indicators were made in England. Those are no longer available and can not be repaired due to obsolescence of parts, but you can substitute the new Swiss models with confidence. They are a dramatic improvement over the old ones.


Swiss Indicator Stand

 

from our reference shelf:

BesTest and TesaTast Indicator Repair Manual … page 177
Starrett 711 Last Word Indicator Repair Manual … page 199
Interapid Indicator Repair Manual … page 208
Compac Test Indicator Repair Manual ... page 194
 

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Long Island Indicator Service Inc
14 Sarah Drive — Hauppauge NY 11788 — USA


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This page's most recent revision: 12 APRIL 2017
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