Huba Control 712 Operating Instructions Manual
Huba Control AG - Type 712 - Edition 07/2015 - 116381
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712
OEM Level sensing pressure transmitter
Operating instructions
2
Huba Control AG - Type 712 - Edition 07/2015 - 116381
English
Safety Guidelines
These instructions contains notices intended to ensure personal safety, as well
as to protect the products and connected equipment against damage. These
notices are highlighted by the symbols shown below and graded according to
severity by the following texts.
This warning signifies an imminent danger.
Injuries or even death can arise from failing the warnings.
This warning signifies a potential danger.
Injuries or even death can arise from failing the warnings.
This warning signifies a potential dangerous situation,
which can lead to medium or light injuries.
Only trained qualified personnel shall execute this work.
DANGER
CAUTION
ATTENTION
Huba Control AG - Type 712 - Edition 07/2015 - 116381
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General Notes
NOTE
Dear customer,
for reasons of clarity the instructions does not contain detailed information
about all types of products and cannot take into account every conceivable
case of installation, operation or maintenance.
If you require further information or should problems occur which are not
sufficiently explained in the instructions, you can consult your local Siemens
branch to obtain the necessary information.
May we also draw your attention to the fact that the contents of the operating instructions are not part of a previous or existing agreement, approval or
legal relationship or an amendment thereof. All obligations of the Siemens
AG result from the contract of purchase which also contains the full and
solely valid warranty agreement. These contractual warranty conditions are
neither extended nor restricted by the contents of the operating instructions.
The contents reflect the technical state at the time of going to
print. Subject to technical modifications in the course of further
development.
Intrinsically safe devices lose their license as soon as they are operated on circuits which do not meet the requirements of the examination certificate valid
in your country. The device may be operated with high pressure and corrosive
media. Therefore serious injuries and/or considerable material damage cannot
be ruled out in the event of improper handling of the device.
The equipment may only be used for the purposes specified in this
operating instructions.
CAUTION
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Huba Control AG - Type 712 - Edition 07/2015 - 116381
Qualified Personnel
are persons familiar with the insallation, assembly, commisioning and operation of the product and who have the appropriate qualifications for their
activities such as:
training or instruction or authorization to operate and maintain devices/
systems according to the standard of safety technology for elecrical
circuits, high pressures and corrosive as well as hazardous media.
for devices with explosion protection: training or instruction or authori zation to be allowed to work on electrical circuits for potentially explosive
systems.
training or instruction according to the standards of safety engineering in
the care and use of suitable safety equipment.
Only trained qualified personnel shall execute this work.
Modules which are sensitive to electrostatic charge may be destroyed by
voltages which are far below the human level of perception. These voltages
occur already when you touch a component or electrical connections of a
module without first discharging yourself electrostatically. The damage incurred by a module as a result of an overvoltage is not usually immediately perceptible but only becomes noticeable after a long time in operation.
Therefore, a suitable equipotential bonding must be guaranteed when repairing the device.
(1)
YYMMDD - example 100912
The date of manufacture can be seen on the label of the
pressure level transmitter, for example:
YYMMDD-XXX-XX-XXXX
Date as ıyear-month-day„
3 digits of the order number
Order position
Single part number
(1)
Huba Control AG - Type 712 - Edition 07/2015 - 116381
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Application in hazardous area
with current output 4 ... 20 mA)
The operation is acceptable into the intrinsically safe circuits only, with the
following maximum values:
Power supply Ui ª 30 V
Current Ii ª 100 mA
Power dissipation Piª 750 mW
Consider the following data:
The length of the cable, which conveys the input/output signal, must be taken
in consideration because of its internal inductivity and capacity:
Internal capacitance Ci = 0 nF + 0.08 nF/m
Internal inductance Li = 0 øH + 1.0 øH/m
Mark in accordance acc. RL 94/9/EG
II 1 G
Protection type mark Ex ia IIC T4 Ga
The maximum allowable operating temperature Ta is from -20 to +80C. For
the applications as Category-1- apparatus the maximum allowable operating
temperature should be maximum +60C. The transmitter can be used in
open tanks, channels etc.
For the applications as Category-1- apparatus group IIC is not allowed the
critical electrostatic charging over the protection cap surface.
The valid standards and rules should to be considered during the installation
of devices.
DANGER
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