Product Overview; Operational Area; Function - Helios EDR Montage- Und Betriebsvorschrift

Installation and Operating Specification EDR
The equipment is to be used solely for the purposes specified and confirmed in
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the order. Other uses which do not coincide with, or which exceed those specified
will be deemed unauthorised unless contractually agreed. Damages resulting
from such unauthorised uses will not be the liability of the manufacturer. The user
will assume sole liability.
It is strictly forbidden for work to be carried out on any components while they are
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connected to live voltage.
The safe isolation from the supply must be checked using a two-pole voltage
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detector.
The owner is obliged to ensure that the device are operated in perfect working
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order only.
Inspect electrical equipment periodically: retighten loose connections – immedi-
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ately replace damaged lines and cables.
Never clean electrical equipment with water or similar liquids.
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A separate fault and performance monitoring-system with an alarm signal function
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is necessary in order to prevent personal injuries and material damages during
malfunctions and in case the device fails. Substitute operation must be taken into
consideration!

3 Product overview

3.1 Operational area

Pressure control for ventilation systems.

3.2 Function

Sensor with a membrane system suitable for measuring differential or negative pressure
of non-aggressive gas.
The differential pressure to be measured takes effect on a spring supported silicone
membrane.
Function when the pressure at the "Plus"- connection exceeds the pressure at the
"Minus"- connection.
Changes in position of the membrane are detected by a differential transformer and
converted into an output signal of 0 - 10 V by an electronics unit.
Depending on the programmed Mode the device can be used as sensor or as a
control module for pressure.
For operation as pressure sensor the device supplies an output signal (0 - 10 V)
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proportional to the measuring range.
For operation as control module for pressure the purpose of the device is to reach
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and maintain the target value set. To accomplish this, the measured actual value
(sensor value) is compared with the adjusted target value, and the controlled
value is deduced from this. Controlled output (0 - 10 V) e.g. for activating a speed
controller for fans or an EC-fan directly.
L-BAL-E192-GB 1320 Part.-No.
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Product overview