halstrup-walcher EMA 84 Instruction Manual

Instruction Manual
EMA 84 Digital
Pressure Gauge

halstrup-walcher GmbH
Stegener Straße 10

D-79199 Kirchzarten
Phone: [phone]

Fax: [phone]
E-Mail: [e-mail]

Internet: www.halstrup-walcher.com

Document 7100.002564C 07/2017

EMA 84 Instruction Manual

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Table of Contents

1 Safety precautions .................................................................................................................. 4

1.1 Appropriate use .................................................................................................................. 4

1.2 Shipping, assembly, electrical connections and start-up ................................................... 4

1.3 Troubleshooting, maintenance, repairs, disposal .............................................................. 4

1.4 Symbols ............................................................................................................................. 5

2 Instrument description ............................................................................................................. 6

2.1 Features ............................................................................................................................. 6

2.2 Operating elements ............................................................................................................ 7

3 Start-up ................................................................................................................................... 8

3.1 Electrical connections ........................................................................................................ 8

3.2 Pneumatic connections ................................................................ ...................................... 8

3.3 Operating the instrument ................................................................................................... 8

4 Zero-point calibration .............................................................................................................. 9

5 Troubleshooting ...................................................................................................................... 9

6 Technical data ......................................................................................................................... 10

7 Dimension drawings ................................................................................................................ 11

EMA 84 Instruction Manual

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Purpose of instruction manual

This instruction manual describes the features of the EMA 84 digital pressure gauge
and provides guidelines for its use.

Improper use of this instrument or failure to follow these instructions may cause injury
or equipment damage. Every person who uses this device must therefore read the
manual and understand the possible risks. The instruction manual, and in particular
the safety precautions contained therein, must be followed carefully. Contact the

manufacturer if you do not understand any part of this instruction manual.

Handle this manual with care:

 It must be readily available throughout the lifecycle of the instrument.
 It must be provided to any individuals who assume responsibility for operating the

instrument at a later date.

 It must include any supplementary materials provided by the manufacturer.
The manufacturer reserves the right to continue developing this instrument model

without documenting such development in each individual case. The manufacturer
will be happy to determine whether this manual is up-to-date.

Conformity

This instrument corresponds to the state of the art and meets all legal requirements
set forth in EC directives as evidenced by the CE label.

© 2006

The manufacturer owns the copyright to this instruction manual. This manual contains
data, instructions and drawings pertaining to the features and usage of this
instrument; copying this manual in part or in full or distributing it to third parties is
prohibited.

EMA 84 Instruction Manual

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1 Safety precautions

1.1 Appropriate use

The EMA 84 is a portable, battery-powered digital pressure gauge for measuring
positive and negative differential pressures. At the heart of this precision instrument is
a pressure measurement capsule containing a membrane spring; the deflection of
this spring is then ascertained via an inductive measurement principle. Because it is
durable and easy-to-use, the EMA 84 lends itself well to maintenance work and
customer service applications for heating, air-conditioning and ventilation units, where
it can be used for monitoring filters, measuring fireplace drafts and wind pressure, etc.
Its precision and reproducibility also make the EMA 84 is highly suitable for use in
laboratory applications.

Always observe the operating requirements—particularly the permissible supply
voltage—indicated on the rating plate and in the “Technical data” section of this
manual.

The instrument may only be handled as indicated in this manual. Modifications to the
instrument are prohibited. The manufacturer is not liable for damages caused by
improper use or failure to follow these instructions. Violations of this type render all
warranty claims null and void.

1.2 Shipping, assembly, electrical connections and start-up

Only technical personnel who are appropriately trained and authorized by the
operator of the facility may assemble the instrument and set up its electrical
connections.

The instrument may only be operated by appropriately trained individuals who have
been authorized by the operator of the facility.

Specific safety precautions are given in individual sections of this manual.

1.3 Troubleshooting, maintenance, repairs, disposal

The individual responsible for the electrical connections must be notified immediately
if the instrument is damaged or if errors occur.

This individual must take the instrument out of service until the error has been
corrected and ensure that it cannot be used unintentionally.

This instrument requires no maintenance.
Only the manufacturer may perform repairs that require the housing to be opened.
The electronic components of the instrument contain environmentally hazardous

materials and materials that can be reused. For this reason the instrument must be
recycled in accordance with the environmental guidelines of the jurisdiction in
question once it has been taken permanently out of service.