Ref: REFLEX/SCANFLEX MANUAL
EDITION 1: JULY ’97 23
Controller Relays in Multipoint System (Pr.1 = 2 to 10) - Group Alarms
When the Reflex instrument is used as a Scanflex Controller the 5 relays in the Controller are
pre assigned as group alarms to show the following:-
Relay 1 - Is energised to indicate that Relay 1 on the Relay Module for any
point has operated. (Normally de-energised)
Relay 2 - Is energised to indicate that Relay 2 on the Relay Module for any point
has operated. (Normally de-energised)
Relay 3 - Indicates loss of echo on any point. (Normally energised)
Relay 4 - Indicates a fault in any communication module. (Normally energised)
Also indicates manual scanning mode has been initiated or loss of
power to any module or the Controller.
Relay 5 - Indicates the instrument is in the programme mode.
(Normally de-energised)
Point Relays in a Multipoint Systems
In addition to the above, one or two Scanflex Relay Modules SR-10 may be linked to the
system. Each Module has two relays per point. The designation of these relays is common
for all points and the designation is selected using Pr.8 to designate relay 1 on all points.
Pr.11 to do the same for relay 2 on all points and Pr.14 and Pr.17 for relay 3 and 4 if they are
fitted. All the options listed for Pr.8 are available for multipoint applications except option 8
"RUN-PROG". This is covered by a group alarm.
Relay Definitions
Pr.8 Relay 1 Designation Common to all points on Scanflex
Single Point Reflex Multipoint Scanflex
0 = Off (default) 0 = Off (default)
1 = Level alarm (ne)
2 = Level control (nd) 2 = Level control (nd)
6 = Temperature alarm (ne)
7 = Loss of echo (ne) No other options
8 = Run/Prog (ne) are available.
Pr.9 Relay 1 Set Defined for each point
For level or distance enter values in units selected in Pr.3
For volume (Pr.43) enter in displayed units.
For temperature enter values in degrees C. (Valid only
if probe fitted)
For loss of echo or Run/Prog, no set/reset entries are
required.
Pr.10 Relay 1 Reset Defined for each point
Options are the same as Pr.9.
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