Ascon Tecnologic - ATT1/ATT1-I - ENGINEERING MANUAL - PAG. 2
INSTALLATION INFORMATION
Dimensions
45
23
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
Electrical connections
Carry out the electrical wiring by connecting only one wire to each
terminal and according to the following diagrams:
Output
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
+
−
Output
terminal
Output
terminal
Pt100, Pt1000 and Ni100 Sensors
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2 wires
3 wires
4 wires
B
A
B B1
A
A1
B B1
A
Note: The PT1000 sensors must be connected in 2 wires mode.
TC K, S, R, J, T, N, B, E Sensors
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
+
−
+
−
+
−
+
−
+
−
+
−
+
−
Differential measure
between 2 TC of the
same type
Note:
Exclude the CJ
compensation
+
−
+
−
Average temperature measure
between multiple TCs of the
same type
10... 400
W
and 10... 4000
W
Potentiometer
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
2 wires
3 wires
4 wires
B
A
B
A
B
A
B1
B1
A1
Note: The 4000
W
potentiometer must be connected in 2 wires mode.
Voltage input
2
6
4
3
1
Vdc
+
mA
A
B
B1
A1
Tc
NFC
-
+
PWR
7..30Vdc
5
Out
+
−
TECHNICAL CHARACTERISTICS (@ 20°C)
General specifications
Insulation voltage: 1 kV AC for 1 minute (ATT1-I model only);
RTD excitation current: < 200
m
A;
RTD maximum wire resistance: 20
Ω
per wire;
Cold junction accuracy: ±0.5°C;
Cold junction drift: 0.05°C/°C;
Voltage operating range: 7... 30 Vdc;
Current output: 4... 20 mA (2 wires);
Output resolution: 2
m
A;
Over-range output value: +5°C;
Under-range output value: -5°C;
Failure output value: Selectable between 21 mA, 3.8 mA or any
other value;
Rejection: 50... 60 Hz;
Temperature drift: < 150 ppm;
Sampling time: 300 ms;
Response time (10%input, 90% output):
- With no filters: 400 ms,
- With medium filter: 2 s,
- With strong filter: 6 s;
Protection: IP 20;
Compliance: CE, EN 61326-1;
Operating temperature: -40... +85°C;
Humidity: 30... 90% @ 40°C (with no condensation);
Storage temperature: -40... +105°C;
Connections: Screw terminals;
Enclosure: PA66;
Dimensions: Ø45 mm, thickness 23 mm.
