REGARD 8-Input 4-20 Module & 8-Channel Display Card (ATEX Version)
Issue 2. October 2011
30
Set over-range fault level
Enables a signal above 20mA to trip the fault alarm. The over-range fault level can be set
to 20.5mA to 23.5mA in 0.1mA steps, or set to OFF.
To ensure that a short circuit between 24V and the 4-20mA signal from the
transmitter indicates a fault, as required by EN 60079-29-1, do not set to OFF.
PRESS
DISPLAY
•
Select
command
10–8
R
FLT O/R
Display shows current setting of head 1: e.g.
h1:OFF
•
Select head to change.
Current setting shown
.
h2:21.5
•
Select setting for head, e.g. 23mA
h2:23.0
•
Select next head to change.
Current setting shown
.
h3:OFF
Repeat for other heads
•
Confirm selection and exit command
R
10–8:h4
Set alarm hysteresis
Alarm hysteresis can be set from 0 to 5% of FSD in 0.5% steps.
PRESS
DISPLAY
•
Select
command
11–0
R
HYST
Display shows current setting of head 1: e.g.
h1:1.0%
•
Select head to change.
Current setting shown
.
h2:1.0%
•
Select setting for head, e.g. 1.5%
h2:1.5%
•
Select next head to change.
Current setting shown
.
h3:1.0%
Repeat for other heads
•
Confirm selection and exit command
R
11–0
