TESTO 512 Instruction Manual
Contents
General notes ....................................................22
1. Safety advice......................................................23
2. Intended purpose ..............................................24
3. Product description............................................25
3.1 Display and control elements ........................................25
3.2 Interfaces ......................................................................26
3.3 Voltage supply ..............................................................26
4. Commissioning ..................................................27
5. Operation ..........................................................28
5.1 Connecting pressure hoses, Pitot tube..........................28
5.2 Switching the instrument on / off ..................................29
5.3 Switching the display light on / off ................................29
5.4 Performing settings ......................................................29
6. Measuring ..........................................................34
7. Care and maintenance ......................................36
8. Questions and answers......................................37
9. Technical data ....................................................38
10. Accessories/spare parts ....................................39
testo 512
Digital manometer
Instruction manual
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
General notes22
General notes
This chapter provides important advice on using this
documentation.
The documentation contains information that must be
applied if the product is to be used safely and efficiently.
Please read this documentation through carefully and
familiarise yourself with the operation of the product before
putting it to use. Keep this document to hand so that you
can refer to it when necessary.
Identification
Representation Meaning Comments
Note Offers helpful tips and information.
±, 1, 2 Objective Denotes the objective that is to be
achieved via the steps described. Where
steps are numbered, you must always
follow the order given!
Condition A condition that must be met if an action
is to be carried out as described.
i, 1, 2, ... Step Carry out steps. Where steps are
numbered, you must always follow the
order given!
Text Display text Text appears on the instrument display.
Control button Press the button.
- Result Denotes the result of a previous step.
º Cross-reference Refers to more extensive or detailed
information.
Button
1. Safety advice 23
1. Safety advice
This chapter gives general rules which must be followed
and observed if the product is to be handled safely.
Avoid personal injury/damage to equipment
i Do not use the measuring instrument and probes to
measure on or near live parts.
i Never store the measuring instrument/probes together
with solvents and do not use any desiccants.
Product safety/preserving warranty claims
i Operate the measuring instrument only within the
parameters specified in the Technical data.
i Always use the measuring instrument properly and for its
intended purpose. Do not use force.
i Do not expose handles and feed lines to temperatures in
excess of 70 °C unless they are expressly permitted for
higher temperatures.
Temperatures given on probes / sensors relate only to
the measuring range of the sensors.
i Open the instrument only when this is expressly
described in the documentation for maintenance and
repair purposes.
Carry out only the maintenance and repair work that is
described in the documentation. Follow the prescribed
steps when doing so. For safety reasons, use only
original spare parts from Testo.
Ensure correct disposal
i Take faulty rechargeable batteries/spent batteries to the
collection points provided for them.
i Send the product back to Testo at the end of its useful
life. We will ensure that it is disposed of in an
environmentally friendly manner.
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2. Intended purpose24
2. Intended purpose
This chapter gives the areas of application for which the
product is intended.
Use the product only for those applications for which it was
designed. Ask Testo if you are in any doubt.
The testo 512 is a compact digital manometer with
temperature compensation for measuring the positive and
negative over-pressure and differential pressure of nonaggressive gases. With the versions 2hPa, 20hPa and
200hPa, flow velocity can also be measured via a Pitot
tube.
The product was designed for the following
tasks/applications:
· Measurement on heating, ventilation and air conditioning
systems
· Customer service and maintenance work
The product should not be used in the following areas:
· Areas at risk of explosion.
· Diagnostic measurements for medical purposes
3. Product description 25
3. Product description
This chapter provides an overview of the components of
the product and their functions.
3.1 Display and control
elements
Overview
Infrared interface,
Pressure connection nipple
(4/6mm):
(+) positive over-pressure
(-) negative over-pressure
Display
Control buttons
Battery compartment (rear)
Button functions
Button Functions
Switch instrument on;
switch instrument off (press and hold)
Switch display light on / off
Keep reading, display
maximum/minimum value
Open/leave configuration mode (press
and hold);
In configuration mode:
Confirm input
In configuration mode:
Increase value, select option
In configuration mode:
Reduce value, select option
Print data
Carry out zeroing
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3. Product description26
Important displays
Display Meaning
Battery capacity (bottom right in display):
· 4 segments in the battery symbol are lit: Instrument battery is fully
charged
· No segments in the battery symbol are lit: Battery is almost spent
Print function: Readings are sent to the printer
3.2 Interfaces
Infrared interface
Measurement data can be sent to a Testo printer via the
infrared interface on the head of the instrument.
Pressure connection nipple
Pressure hoses can be connected via the pressure
connection nipple at the upper end of the instrument.
3.3 Voltage supply
Voltage is supplied by means of a 9V monobloc battery
(included in delivery) or rechargeable battery. It is not
possible to run the instrument from the mains supply or
charge a rechargeable battery in the instrument.
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