Ascon Tecnologic - K31D - OPERATING INSTRUCTIONS - PAG. 18
8. PROBLEMS, MAINTENANCE AND WARRANTY
8.1 Probe errors
Error
Reason
Action
E1-E1
The probe
Pr1
may be interrupted
or in short circuit, or may measure a
value outside the allowed range
Check the correct
connection of the
probe with the in-
strument and check
the probe works
correctly
E2-E2
The probe
Pr2
may be interrupted
or in short circuit, or may measure a
value outside the allowed range
----
Process measurement not available
8.2 Other errors
Error
Reason
Action
ErAt
Auto-tuning not pos-
sible because the
process value is too
high or too low
Press the
keyin order to make
the error message disappear.
Once the error has been found,
try to repeat the auto-tuning
noAt
Auto-tuning not fin-
ished within 12 hours
Check the the probe and actuator
functioning and try to repeat the
auto-tuning
LbA
Loop control interrupt-
ed (Loop break alarm)
Check the the probe and actuator
functioning and swap the instru-
ment to (
rEG
) control
ErEP
Possible EEPROM
memory anomaly
Press the
key
In error conditions, the instrument provides the output power
programmed with parameter
oPE
and activates the desired
alarm(s), if the relative parameters
ALni
have been pro-
grammed as
yES
.
8.3 Cleaning
We recommend cleaning of the instrument with a slightly
wet cloth using water and not abrasive cleaners or solvents
which may damage the instrument.
8.4 Warranty and Repairs
The instrument is under warranty against manufacturing
flaws or faulty material, that are found within 18 months from
delivery date.
The warranty is limited to repairs or to the replacement of the
instrument. The eventual opening of the housing, the viola-
tion of the instrument or the improper use and installation of
the product will bring about the immediate withdrawal of the
warranty effects.
In the event of a faulty instrument, either within the period
of warranty, or further to its expiry, please contact our sales
department to obtain authorisation for sending the instru-
ment to our company. The faulty product must be shipped
to Ascon Tecnologic with a detailed description of the faults
found, without any fees or charge for Ascon Tecnologic,
except in the event of different agreements.
8.5 Disposal
The appliance (or the product) must be disposed
of separately in compliance with the local standards
in force on waste disposal.
9. TECHNICAL DATA
9.1 Electrical characteristics
Power supply:
12 VAC/VDC, 24 VAC/VDC, 100 ÷ 240 VAC
± 10%;
Frequency AC:
50/60 Hz;
Power consumption:
about 4 VA;
Inputs:
2 inputs for temperature probes:
NTC (103AT-2, 10 k
W
@ 25°C) or
PTC (KTY 81-121, 990
W
@ 25°C) or
Pt1000
+ 2 free voltage digital inputs contacts;
Outputs:
Up to 4 relay or Vdc for SSR outputs:
EN 61810 EN 60730
UL 60730
Out1 - SPDT - 8A -
1/2HP 250 V
8 (3) A
4 (4) A
10 A Res.
Out2 - SPDT - 8A -
1/2HP 250 V
8 (3) A
4 (4) A
10 A Res.
Out3 - SPST-NO - 5A -
1/10HP 125/250 V
5 (1) A
2 (1) A
2 A Gen. Use
Out4 - SPST-NO - 5A -
1/10HP 125/250V
5 (1) A
2 (1) A
2 A Gen.Use
Relay outputs slectrical life as for EN 60730:
Out1, Out2: 100000 operations; Out3, Out4: 100000 operations;
Installation category:
II;
Measurement category:
I;
Protection class against electric shock:
Class II for Front panel;
Insulation:
Reinforced insulation between the low voltage
section (relay outputs) and the front panel; Reinforced insula-
tion between the low voltage section (relay outputs) and the
extra low voltage section (inputs, SSR outputs); No insulation
between power supply, inputs and SSR outputs; 50 V insula-
tion between RS485 and extra low voltage section.
9.2 Mechanical characteristics
Housing:
Self-extinguishing plastic, UL 94 V0;
Heat and fire resistance category:
D;
Dimensions:
78 x 35 mm, depth 75.5 mm;
Weight:
about 150 g;
Mounting:
Incorporated flush in panel (pane thickness
12 max. mm) in a 71 x 29 mm hole;
Connections:
Fixed or removable screw terminal block for
0.2 ÷ 2.5 mm
2
/AWG 24 ÷ 14 cables;
Protection degree:
IP65 (NEMA 3S) when mounted with
the optional screw type bracket;
Pollution degree:
2;
Operating temperature:
0 ÷ 50°C;
Operating humidity:
< 95 RH% with no condensation;
Storage temperature:
-10 ÷ +60°C.
