44 User Manual QuickTOC
®
purity
ATEX 2 04E3920
3 Product
3.6 Components of the Explosion Protection LAR | PROCESS ANALYSERS AG
3.6.4.4 Relays
The analyser has 8 isolated relays (switch contacts). These are capable of switching external circuits up
to 24 V DC / AC with 1 A and can be assigned by the user in the operating software. The relays can be
programmed as normally open and normally closed (settings in the software, default is normally open).
See Chapter 7.2.6 from page 100).
3.6.4.5 Analog Outputs
The maximum load for the isolated 0 / 4-20 mA current loops is 500 ohms. The type of analogue output
(0-20 mA or 4-20 mA current loop) can be set in the software. If the output is set to 4 - 20 mA, a so-called
"live zero feature" can be set in the operating software. This means that instrument errors are output at
0 mA. The conditions of the error display can be programmed individually in the operating software.
The analyser mounting plate (Fig. 22, page 37) contains the X101 terminal strip for the analog outputs
(Fig. 28, page 44). The individual terminals of X101 are labeled. The first digit stands for the sample flow
(PS) and the second for the outgoing parameter.
.
Fig. 28: Analog outputs
Warning
Damage to the analyser due to current or voltage at analog outputs!
At the analog outputs of the analyser neither current nor voltage must be applied ac-
tively. The LAR analysers only output different currents in mA.
Notice
Note that the terminal diagram (Fig. 29, page 45 to Fig. 31, page 47) is designed as
an example for the maximum configuration (6 sample streams) and that the analyser
ordered by you corresponds to your configuration.
The relays and analog outputs can be programmed individually by LAR Technical
Support (Chapter 15.1 on page 183) during commissioning.
!
i
To Next Page
Loading...