![Helios 40107 Скачать руководство пользователя страница 10](http://html.mh-extra.com/html/helios/40107/40107_installation-and-operating-instructions-manual_2120712010.webp)
When several devices are supplied by one 24 V
AC voltage supply
,
it is to be ensured that all ”positive“ operating voltage input termi-
nals (+) of the field devices are connected with each other and all
”negative“ operating voltage input terminals (–) (= reference poten-
tial) are connected together (in-phase connection of field devices).
All outputs of field devices must be referenced to the same poten-
tial!
In case of reversed polarity at one field device, a supply voltage
short- circuit would be caused by that device. The consequential
short-circuit current flowing through this field device may cause
damage to it.
Therefore, pay attention to correct wiring!
Circuitry
Circuitry
Output
0V/GND
Output
0V/GND
Power supply
AC 24V~
0V
DC 15-36V = GND
Connecting scheme
Parallel operation
SUPPLY VOLTAGE :
For operating voltage reverse polarity protection, a one-way recti-
fier or reverse polarity protection diode is integrated in this device
variant.
This internal one-way rectifier also allows operating 0 - 10 V devic-
es on AC supply voltage.
The output signal is to be tapped by a measuring instrument.
Output voltage is measured her against zero potential (O V) of the
input voltage!
When this device is operated on
DC supply voltage
, the operating
voltage input UB+ is to be used for 15...36 V DC supply and UB –
or GND for ground wire!
Circuitry
Output
0V/GND
Power supply
AC 24V~
0V
DC 15-36V = GND
Connecting scheme
Individual operation
Notes on commissioning:
This device was calibrated, adjusted and tested under standardised conditions. When operating under deviating conditions, we recom-
mend performing an initial manual adjustment on-site during commissioning and subsequently at regular intervals.
Commissioning is mandatory and may only be performed by qualified personnel!
These instructions must be read before installation and commissioning and all notes provided therein are to be
regarded!
CO2 Monitor
Installation and operating instructions
CO2 Monitor
10
CO2 Monitor
Installation and operating instructions
Содержание 40107
Страница 15: ...DE EN FR CO2 Monitor Moniteur de CO2 15 ...