Dossena SRI3/I2 Manuel D'installation page 5

ALARM CAUSES
The resistance measure will blink and the display
Alarm for resistance
value lower than the set
alarm threshold
It will appear a blinking message UMAX
Alarm for voltage
above the maximum
voltage threshold
UMAX.
It will appear a blinking message TEMP
The instrument has
reached an high
internal temperature
DESCRIPTION
PSW = Password setting
RAL= Intervention threshold for the
insulation resistance
RF= Intervention threshold of FAULT
for the insulation resistance
R3= Function of 3 rd relay
FLOG= Resting status (de-energised)
of Fault relay
RST= Reset mode after fault alarm
COL= background color of display in
absence of alarms
EXP= Presence of expansion for
networks up to 1000 V
C°=Alarm threshold for the temperature
of internal NTC
All manuals and user guides at all-guides.com
The instrument is able to signal different types of alarms. In presence of general alarm, the
display will turn yellow, the third relay (3R), if it is set will trig and the cause of alarm will be
reported by message in appropriate area (MSG area in the left picture) or by flashing the
greatness that is the cause of mulfunction.
If the resistance falls below the alarm threshold, the display will turn flashing yellow/red
and the alarm relay (A) will intervene (and eventually the third relay, if it is set). If the
resistance falls below the fault threshold, the display will turn red fix and the relay of
FAULT (F) will trig. Below the description of the individual alarms :
DESCRIPTION
will turn yellow/red flashing.
(temperature).
SETUP MODE
Pressing for 3 seconds the SET button, the screen turns blue and you access to SETUP
menu. In Setup the keys have the following meaning:
1: press NEXT to scroll and modify the parameters in a cyclic mode.
2: Press for at least 3 seconds to enter/exit from SETUP function, After 1 minute of inactivity
in SET UP state, the device automatically backs to reading measure, without saving the
parameters changes.
3 e 4: Push to increase or decrease values selected.
RANGE [DEFAULT]
000 -999
[default: 000]
5kΩ -2MΩ
[default: 200kΩ]
5kΩ -2MΩ
[default: 50kΩ]
A+F: if A or F will be on trip
D: it will be on trip, if there is a diagnostic alarms
(temperature, voltage or transformer disconnection)
T: it will be on trip only for temperature alarm
U: it will be on trip only for voltage alarm
DIS: it will be on trip only for alarm of transformer
disconnection
[default: A+F]
N.DE./ N.E.
[default:N.DE]
MAN/AUTO
[default: AUTO]
G= green B= blue W= white
L= violet N= no color
[default: G]
Yes/No
[default: No]
0 ÷ 90°C
[default: 0]
The TEST function monitors the correct operation of device. After pressing the TEST button, on the
display will appear the blinking message "TESTING". The instrument will simulate the presence of a
leakage resistance, you will have the tripping of Alarm relay (and optionaly the third relay, if properly
setted) and display will become yellow for few moments then subsequently the tripping of Fault relay
(display will become red). At the end of TEST, the instrument will return in the normal surveillance
conditions, if it is in automatic reset mode.
ALARMS
ALARM CAUSES
Disconnection of
measurement connection
to the transformer.
alarm for lower voltage at
the minimum voltage
threshold
UMIN
The device has performed
an automatic and
programmed test but the
test failed
DESCRIPTION
UMAX= Overvoltage level for the
alarm of voltage line
UMIN= Undervoltage level for the
alarm of voltage line
AUTOTEST= Time to carry-out a self-
test
DELAY= Delay in seconds for the
tripping of FAULT
NODE = Number of node on the
network RS485
BAUD= Serial speed and parity bit
(N= none – E = even - 0=odd)
TEST FUNCTION
DESCRIPTION
It will appear a blinking message DIS (disconnected)
and the symbol of the transformer.
It will appear a blinking message UMIN
It will appear a blinking message TEST
RANGE [DEFAULT]
0 ÷ 700V
[default: 257]
0 ÷ 700V
[default: 203]
[default: 0]
0 ÷ 9999 Sec
[default: 0]
[default: 1]
4800-9600-19200-
38400bps
[default: 19200 N]
0 ÷ 72H
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EN