Protection Relays, Monitors & Systems
Temperature monitoring
SIO-RTD SERIES
Temperature Input Monitor
Description
The SIO-RTD is a microprocessor-based data-acquisition
system for measuring temperatures accurately with resistance
temperature detectors (RTDs) and for monitoring 4-20 mA
analog-output devices in industrial environments. RTD inputs
are noise-filtered and automatically calibrated for lead-length
compensation, ambient temperature, and other factors
providing accurate readings through the specified temperature
range for several types of RTD devices.
Features & Benefits
FEATURES
8 Inputs
CSA Class 1 Zone 2
Hazardous-location
Certified
Individually-selectable
Input Type
bENEFITS
Single module can collect multiple data points
Can be mounted in hazardous areas
Flexible; can be used with Pt100, Ni100, Ni120, Cu10
RTD or 4-20 mA inputs
Protects circuit boards against corrosion and moisture
Up to 1.2 km away from network master
Rejects noise from motor monitoring applications
For detailed wiring diagram, see page 86.
SuPPleMental MOnitORinG
Simplified Circuit Diagram
M
RTD x 8
Conformal Coating
Remote Monitoring
Notch Filter
(Temperature Input Monitor)
SIO-RTD
Specifications
input Voltage
dimensions
Rtd types
Rtd Range
analog Range
accuracy
(Pt100, ni100, ni120)
(cu10)
(4-20 ma)
lead compensation
communications
conformally coated
Warranty
Mounting
18 to 32 Vdc, 2W
H
87 mm (3.43”);
W
112.5 mm (4.43”);
d
56 mm (2.2”)
Pt100 (default), Ni100, Ni120, Cu10
-40 to 200˚ C with open and short detection
4-20 mA
1˚ C
3˚ C
0.1 mA
Up to 20
Ω
Modbus RTU
®
Standard feature
5 years
DIN, Surface
RS-485 Modbus RTU
Ordering Information
CATAlOg/ SYSTEm NUmbER
CONTROl POWER, OUTPUT
SIO-RTD-02-00
24 Vdc, Modbus RTU
©2011 Littelfuse Startco Product Catalogue
37
www.startco.ca/products/sio-rtd
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