english
Operating Instructions
Transmitter Supply Unit Type 9160
13
Intrinsically safe devices of Zone 1, 0, 21 and 20 may also be connected to the
intrinsically safe signal circuits by using in Zone 2 or Zone 22.
The apparatus may be connected only to devices in which no voltages higher than 253 V
AC (50 Hz) may occur.
The safe maximum values of the connected field device(s) must correspond to the
values of the data sheet or the EC-type examination certificate.
Interconnecting several active devices in an intrinsic safety circuit may result in other
safe maximum values. This could endanger the intrinsic safety!
The safety guidelines in these operating instructions.
Any damage can invalidate the explosion protection.
Use the device
in accordance with the regulations
and for its intended purpose only (see
“Function”).
!
Warning
With incorrect or unauthorized use or non-compliance with these instructions the
intended protection can be impaired, the warranty provision is invalidate on our part in
these cases.
o
No changes to the devices or components impairing their explosion protection are
permitted.
o
Furthermore, the device may only be operated if it is undamaged, dry and clean.
Should there be any question about the correct handling of the module, please contact R.
STAHL Schaltgeräte GmbH, Am Bahnhof 30, 74638 Waldenburg, Germany, telephone
+49-7942-943-0, or contact one of our offices or representatives see
4 Conformity to standards
The information about the conformity to standards can be found in the manufacturer’s
declaration of conformity in the appendix of this document.
The current EC-Type Examination Certificate can be downloaded from the Internet
5 Function
The transmitter supply units
are used in the operation of 2-wire and 3-wire transmitters or
to connect to intrinsically safe mA current sources.
The 2-wire and 3-wire transmitters are supplied with power by the transmitter power supply
unit.
The devices bidirectionally transfer a superimposed HART communications signal.
