MER-MAN-14V01 (1002)
Copyright © 2014 Defi ne Instruments
16
6.2 - RTD input
RTD input
Pt100 or Pt1000 DIN 3-wire
type (2-wire can be used with off set trim)
Pt100 lead wire resistance
50Ω/wire max.
0.02% FSO off set error per Ω of lead resist-
ance mismatch
Pt1000 lead wire resistance
20Ω/wire
max. 0.002% FSO off set error per Ω of lead
resistance mismatch
Sensor current
0.3mA nominal
Sensor break output drive
Function high upscale/low downscale
Accuracy
Better than 0.2°C
Temperature drift
<0.007°C/C
Response time
400msec
Temperature (RTD)
The RTD (standing for Resistance
Temperature Device) is highly stable and
accurate, and is fast becoming the most
popular temperature sensor in industry.
Oft en referred to as Pt100 and Pt1000,
the Pt represents platinum (the dominant
metal in its construction), and 100/ 1000 is
the resistance in ohms at 0°C.
Supported RTD types/ranges
Pt100
-200°C (-328°F)
320°C (608°F)
Pt1000
-200°C (-328°F)
320°C (608°F)
