Pressotronik 700, 702
1 Introduction
This quick guide will assist you in starting up the unit. Follow
the safety notices or injury to health or property damage may
occur. Carefully read the original operating instructions in-
cluding information on maintenance and troubleshooting
prior to startup. These are located on the included CD and on-
line at
Please direct any questions to:
Bühler Technologies GmbH
Harkortstraße 29
40880 Ratingen
Germany
Tel.: +49 (0) 21 02 / 49 89-0
Fax: +49 (0) 21 02 / 49 89-20
These operating instructions are a part of the equipment. The
manufacturer reserves the right to change performance-, spe-
cification- or technical data without prior notice. Please keep
these instructions for future reference.
1.1 Intended Use
The Pressotronik 700/702 is a pressure transmitter for monit-
oring the pressure in a fluid system. The transmitter can be in-
stalled some distance from the analysis unit. The components
are connected using a connection cable with M12 connectors.
Model 702 is optionally available with M3 plug connection
(with plug top).
The Pressotronik 700/702 has a 4 - 20 mA analog signal out-
put.
Please note the technical data in the appendix for the specific
intended use, existing material combinations, as well as pres-
sure and temperature limits.
WARNING
All device models are solely intended for industrial applica-
tions. They are not safety components. The devices must not
be used if failure or malfunction thereof jeopardises the
safety and health of persons.
Use in explosive areas is prohibited.
1.2 Contents
• Pressotronik
• Product documentation
• Connection/mounting accessories (optional)
2 Safety instructions
The equipment must be installed by a professional familiar
with the safety requirements and risks.
Be sure to observe the safety regulations and generally applic-
able rules of technology relevant for the installation site. Pre-
vent malfunctions and avoid personal injuries and property
damage.
The operator of the system must ensure:
• Safety notices and operating instructions are available
and observed,
• The respective national accident prevention regulations
are observed,
• The permissible data and operational conditions are
maintained,
• Safety guards are used and mandatory maintenance is
performed,
• Legal regulations are observed during disposal,
• compliance with national installation regulations.
The method for cleaning the devices must be adapted to the IP
protection class of the devices. Do not use cleaners which
could damage the device materials.
3 Transport and storage
Only transport the product inside the original packaging or a
suitable alternative.
The equipment must be protected from moisture and heat
when not in use. It must be stored in a covered, dry, dust-free
room at room temperature.
4 Setup and connection
DANGER
Electric voltage
Risk of electric shock
a) Always disconnect the unit from the mains before per-
forming work.
b) Secure the equipment from accidental restarting.
c) The equipment may only be installed, maintained and
put into operation by instructed, competent personnel.
d) Always observe the applicable safety regulations for the
operating site.
DANGER
Toxic, acidic gases/liquids
Protect yourself from toxic, corrosive gasses/liquids when
performing any type of work. Wear appropriate protective
equipment.
4.1 Installation
WARNING
Gases or liquids discharged under pressure
Depressurise the system before installing or removing the
transmitter.
Disconnect from power all over!
The hydraulic connection of the transmitter uses an G1/4 ex-
ternal thread, DIN 3852 shape E. The Pressotronik connects to
the analysis unit via cable.
Please refer to the appendix for the pin assignment.
4
Bühler Technologies GmbH
BX130004 ◦ 01/2022
