Be used with gases in groups:
Group A propane
Group B ethylene
Group C hydrogen
Having a temperature classification of:
T1
450ºC
T2
300ºC
T3
200ºC
T4
135ºC
T5
100ºC
At ambient temperatures between -40 and +70ºC.
Note:
The specified operating temperature is –20 to
+70ºC. At temperatures below –20ºC the instrument
will continue to totalise but the display will not
function.
This allows use with
all industrial
gases except
carbon disulphide CS
2
.
3.3 4/20mA input
The input safety parameter for the 4/20mA input,
terminals 1 and 3 is:
Ii
=
100mA
The Rate Totaliser is a current input instrument
incorporating an internal protection circuit that
defines the voltage developed between the input
terminals 1 and 3, therefore the ATEX certificate
does not specify a maximum safety input voltage Ui.
3.4 Reset terminals
The input safety parameter for the reset terminal,
RS1 and RS2 is:
Ui
=
4.3V
This allows the reset terminals to be connected to a
voltage free push button contact or to a solid state
switch activated by a supply of up to 4.3V.
3.5 Certification label information
The certification label is fitted in a recess on the top
outer surface of the instrument enclosure. It shows
the ATEX certification information and BEKA
associates name and location. Non European
certification information may also be shown. The
instrument serial number and date of manufacture
are recorded on a separate label inside the terminal
compartment.
BA354NE certification label
6
