SIO-RTD Datasheet, PDF (1/1 Pages) Littelfuse – The SIO-RTD is a microprocessor-based

Protection Relays, Monitors & Systems
Temperature Monitoring
SIO-RTD series
Temperature Input Monitor
Simplified Circuit Diagram
M
RTD x 8
SIO-RTD
(Temperature Input Monitor)
RS-485 Modbus RTU
Ordering Information
Catalog/ System NUMBER
sio-rtd-02-00
CONTROL POWER, OUTPUT
24 Vdc, Modbus RTU
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
BENEFITS
8 Inputs
Single module can collect multiple data points
CSA Class 1 Zone 2
Hazardous-location
Certified
Individually-selectable
Input Type
Can be mounted in hazardous areas
Flexible; can be used with Pt100, Ni100, Ni120, Cu10
RTD or 4-20 mA inputs
Conformal Coating Protects circuit boards against corrosion and moisture
Remote Monitoring Up to 1.2 km away from network master
Notch Filter
Rejects noise from motor monitoring applications
For detailed wiring diagram, see page 86.
Specifications
Input Voltage
18 to 32 Vdc, 2W
Dimensions  H 87 mm (3.43”); W 112.5 mm (4.43”);
D 56 mm (2.2”)
RTD Types
Pt100 (default), Ni100, Ni120, Cu10
RTD Range
.-40 to 200˚ C with open and short detection
Analog Range
4-20 mA
Accuracy
(Pt100, Ni100, Ni120)
1˚ C
(Cu10)
3˚ C
(4-20 mA)
0.1 mA
Lead Compensation
Up to 20 Ω
Communications
Modbus RTU^®
Conformally Coated
Standard feature
Warranty
5 years
Mounting
DIN, Surface
©2011 Littelfuse Startco Product Catalogue
37
www.startco.ca/products/sio-rtd