Siemens LOGO!, Manual

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Technical data
A.11 Technical data: LOGO! AM2 PT100
LOGO!
Manual, 04/2011, A5E03556174-01
339
A.11 Technical data: LOGO! AM2 PT100
LOGO! AM2 PT100
Power supply
Input voltage
12/24 V DC
Permissible range 10.8 ... 28.8 V DC
Power consumption 25 ... 50 mA
Voltage failure buffering typ. 5 ms
Power loss at
• 12 V
•
24 V
• 0.3 ... 0.6 W
•
0.6 ... 1.2 W
Electrical isolation No
Reverse polarity protection Yes
Ground terminal for connecting ground and shielding of the measuring
line
Sensor inputs
Number
2
Type RTD PT100
Connection of sensors
• 2-wire technique
•
3-wire technique
• Yes
•
Yes
Measurement range -50 °C... +200 °C
-58 °F ... +392 °F
Settings for the measurement display on
the LOGO! Basic:
•
1 °C steps
• 0.25 °C steps
(rounded to one decimal)
•
1 °F steps
• 0.25 °F steps
(rounded to one decimal)
•
Offset: -50, Gain: 0.25
• Offset: -500, Gain: 2.50
•
Offset: -58, Gain: 0.45
• Offset: -580, Gain: 4.50
Curve linearization No
Measuring current Ic 1.1 mA
Measurement rate depends on the installation
typical: 50 ms
Resolution 0.25 °C
Error limits
•
0 °C ... +200 °C
• -50 °C ... +200 °C
of the final measured value:
•
±1.0 %
• ± 1.5 %
Electrical isolation No
Cable length (shielded) max. 10 m
Interference frequency
suppression
55 Hz