The M100-RTD monitors the resistance of either 100 Ohm platinum or 120 Ohm Nickel. The RTDs resistance increase as the temperature rises, this resistance change is detected by the M100-RTD, which provides an output corresponding to the temperature being measured. The temperature versus resistance values are provided by the supplier of the RTD used.Â
RTD measurement of temperature is used in large transformers and large motors to ensure winding temperatures do not rise to a level that would change the winding.
Technical Specifications
INPUT
2 or 3 wire input
Platinum Pt 100 Ohm RTD
min. span 20 Ohms…max
span 200 Ohms
Nickel Ni 120 Ohm RTD
min. span 24 Ohms…max
span 240 Ohms
OUPUT
Rated value mA
0-1 / 5 / 10 / 20 & 4-20mA
Rated value volts
0-5 / 10 & 1-5V
ACCURACY
Class ±0.5%
ADJUSTMENT
Zero
±2%
Span
±10%
AUXILIARY
A.C. Voltage
115 / 230 / 400V(±25% / 45-65
Hz / <2VA)
D.C. Voltage
24/48/110V(±20% /
galvanically isolated / <3W)
WEIGHT&CASE SIZE
Approx 0.3kg. 55mm case
NOTE
Ordering Information
Product Code
RTD
Temp
O/p
Aux
Freq
Options
M100-RTD
Pt100
0-250ºC
5mA
230v
50Hz
Options
1
Non standard inputs/outputs as far as technically viable
