Ascon tecnologic K32 User Manual

Ascon Tecnologic - K32 Line - ENGINEERING MANUAL - PAG. 2
2.2.3 RTD (Pt 100) Input
3
RTD
1
2
Input circuit: Current injection (135 µA).
Line resistance: Automatic compensation up to 20Ω/wire
with maximum error ±0.1% of the input span.
Calibration: According to EN 60751/A2.
Note: The resistance of the 3 wires must be the same.
2.2.4 Thermistors Input
3
PTC/NTC
1
Input circuit: Current injection (25 µA).
Line resistance: Not compensated.
2.2.5 V and mV Input
mV
V
+
__
2
1
+
Input impedance: > 1 MΩ
Accuracy: ±0.5% of Span or ±1 dgt @ 25°C.
2.2.6 mA Input
0/4... 20 mA input wiring for passive transmitter
using the auxiliary pws
+
_
+
_
4... 20 mA
2 wires
transmitter
4
1
Input impedance: < 51Ω.
Accuracy: ±0.5% of Span or ±1 dgt @ 25°C.
Protection: NOT protected from short circuit.
Internal auxiliary PWS: 10 VDC (±10%), 20 mA max..
0/4... 20 mA input wiring for passive transmitter
using an external pws
+
_
+
_
1
2
0/4...20 mA
Passive
transmitter
_
External
PWS
+
0/4... 20 mA input wiring for active transmitter
1
2
0/4...20 mA
Active
transmitter
-
+
-
+
2.2.7 Logic Inputs
Safety notes:
• Do not run logic input wiring together with power cables;
• Use an external dry contact capable to switch 0.5 mA, 5 VDC;
• The instrument needs 150 ms to recognize a contact
status variation;
• Logic inputs are not isolated by the measuring input.
A double or reinforced isolation between logic inputs and
power line must be assured by the external elements.
Logic input driven by dry contact
Digital
Input 1
7
65
Digital
Input 2
2.3 Outputs
Safety notes:
• To avoid electrical shocks, connect power line at last.
• For supply connections use No. 16 AWG or larger wires
rated for at last 75°C.
• Use copper conductors only.
• SSR outputs are not isolated. A reinforced isolation must
be assured by the external solid state relays.
2.3.1 Output 1 (OUT1)
Relay Output
NONCC
24
2322
Contact rating: •8A/250Vcosj =1
 •4A/250Vcosj =0.4
Operation: 1 x 10
5
SSR Output
SSR
24
2322
+-
Logic level 0: Vout < 0.5 VDC;
Logic level 1: •12V±20%@1mA;
 •10V±20%@20mA.
Note: This output is not isolated. A double or reinforced
isolation between instrument output and power supply
must be assured by the external solid state relay.

Ascon tecnologic K32 Specifications

General

Brand	Ascon tecnologic
Model	K32
Category	Controller
Language	English