ETS 4000 Ex ia HART ATEX / IECEx
Page 3 of 30
Status: 2016-06-07
HYDAC ELECTRONIC GMBH
Part No.: 669918
1
General
If you have any queries regarding technical details or the suitability of the unit for your application,
please contact our
Technical Sales Department
. The ETS 4000 temperature transmitters are
individually tested and calibrated at a computer operated test station. They are maintenance-free
and operate perfectly when used according to the data (see Technical Specifications). However, if
there is a cause for complaint, please contact
HYDAC Service
. Incorrect use or interference by
anyone other than HYDAC personnel will cause all warranty claims and ATEX and IECEx approvals
to become null and void.
2
Function
The temperature signal measured by the sensor is converted into an analog 4 .. 20 mA Signal. In
addition with the analogue output of the measured value, digital communication is possible by
means of the HART protocol. Connection to the power supply is carried out via a plug connector or a
permanently connected line.
3
Installation and Commissioning Information
The temperature transmitters can be installed directly on the process side via the threaded connection.
The temperature sensor is built into the stem before the thread. In order to perform correct
measurements, ensure the stem is immersed in the flow of the fluid.
Tightening torque see dimensions.
Connection is to be carried out by a properly qualified specialist in accordance with the pertinent
regulations pertaining to potentially explosive environments (e.g. EN 60079-14).The temperature
transmitters of the ETS 4000 series are
-marked. The certificate of conformity is to be found in the
annex.
The requirements of the standards (see technical data) cannot be satisfied unless the temperature
transmitter housing is properly grounded via the mechanical connection or the ½ NPT Conduit. If a
green-yellow wire is available, it can be used additionally for grounding, but may not be used on its own
as the grounding connection.
The related intrinsically safe devices (e.g. zener barriers) must also be grounded.
A potential equalisation is required along the intrinsically safe electrical circuit in the N type model
(insulation voltage
≤
50 VAC).
On the ETS 4000 series, type H (isolation voltage
≤
500 VAC), the cable length to the temperature
transmitter must be max. 30 m (overvoltage protection to DIN EN 61000-6-2). If the cable length
exceeds 30 m, overvoltage protection must be provided by the customer.
For temperature transmitters with optional pressure measurement
Devices with a rated pressure of
≤
100 bar (
≤
1500 psi) provide for pressure equalisation with the
ambient pressure. This is enabled by a small hole underneath the plug connector. The connector is
covered on the inside by a special membrane which prevents moisture from seeping into the unit from
the outside. In order to prevent the hole from becoming clogged, mounting should be carried out in a
horizontal position in moist or dusty environments, or vertically with the pressure port pointing
downwards.
On
devices
with
a
rated
pressure
of
≤
100 bar
(
≤
1500 psi)
and
a
1
/
2
NPT Conduit, this bore is located at the
1
/
2
NPT Conduit.
The General Safety Precautions (cf. section 5) must be adhered to in any event.
Installation per Control Drawings No. 663653 (see chapter 12).
