Signal Conditioning
Data Acquisition & Control
4-20mA Transmitters
IoT Power & Energy Monitoring
Data Communications
Power Supplies
Software
SCM9B-2221
Current Input, Sensor-to-Computer Module
SCM9B-2221
Current Input, Sensor-to-Computer Module
DISCONTINUED
Description
The SCM9B-1000/2000 Sensor-to-Computer Modules are a family of complete solutions designed for data acquisition systems based on personal computers and other processor-based equipment with standard serial I/O ports. The modules convert analog input signals to engineering units and transmit in ASCII format to any host with standard RS-485 or RS-232C ports. These modules can measure temperature, pressure, voltage, current and various types of digital signals. The modules provide direct connection to a wide variety of sensors and perform all signal conditioning, scaling, linearization and conversion to engineering units. Each module also provides digital I/O lines for controlling devices through solid state relays or TTL signals. These digital I/O lines along with built-in limit setting capability provide alarm and control outputs.The modules contain no pots or switches to be set. Features such as address, data rate, parity, alarms, echo, etc. are selectable using simple commands over the communications port—without requiring access to the module. The selections are stored in nonvolatile EEPROM which maintains data even after power is removed.
The 2000 series is an enhanced version of the 1000 series of sensor interfaces. The 2000 series allows the user to scale the output data in any desired engineering units. The 2000 also provides the ability to program nonlinear transfer functions. This feature may be used to linearize nonstandard sensors or to provide outputs in engineering units which are nonlinear functions of the input.
Programmable Features (2000 Series)
- Provides intelligent features not found in the 1000 series
- ASCII Output Scaled to Desired Engineering Units
- User Programmable Nonlinear Transfer Function
- Straight-Line Segment Approximation: up to 24 Segments
Features
- Complete Sensor to RS-485 or RS-232C Interface
- ASCII Format Command/Response Protocol
- 500Vrms Analog Input Isolation
- 15-Bit Measurement Resolution
- Continuous Self-Calibration; No Adjustments of Any Kind
- Programmable Digital Filter
- Digital Limit Setting and Alarm Capability
- Digital Inputs and Outputs Connect to Solid State Relays
- Events Counter to 10 Million
- Requires +10V to +30VDC Unregulated Supply
- Transient Suppression on RS-485 Communications Lines
- Screw Terminal Plug Connectors Supplied
- CE Compliant
Block Diagram
Documents
Certifications
Specifications
- Input Range -1 to +1 mA
- Output Range RS-232C
- Mechanical Format Plug-in or hockey puck
- Internal Power Supply None
- Isolation Voltage 500 Vrms
- Isolation Type Transformer / Optical 2-way
- Accuracy ±0.02% of FS max
- Supply Voltage 10 to 30 VDC
- Input Voltage Withstand Not Protected
- Gain/Offset Adjust Autozero, autocal
- Module Bandwidth programmable
- NMR (60 Hz) Rejection N/A
- External I-to-V Resistor N/A
- Output Control RS-232
- Output Resistance N/A
- Dimensions 3.60 x 2.45 x 1.10 inches
- Interface 10 pos term block
- Customization no
- Load Resistance
- Weight 103 grams (3.63 ounces)
Accessories
SCM9B-A1000-115
RS-232C/RS-485 Converter/Repeater, 115VAC
View
SCM9B-A1000-230
RS-232C/RS-485 Converter/Repeater, 230VAC
View
SCM9B-A2000
RS-232C/RS-485 Converter/Repeater, +10 to +30 VDC
View
SCM9B-PB08
8 channel Backpanel
View
SCM9B-PB14
14 channel backpanel
View
SCM9B-S300
Series S1000/2000/3000/4000 Utility Software, and S1200 Data Logging Software
View
Competitive Cross-Reference
- No cross reference is available.
The information available through this competitive cross reference guide are based upon product catalog information obtained from a variety of sources. The competitive cross reference information is being provided to you free of charge for your use. While Dataforth Corp has used reasonable efforts to ensure data accuracy, Dataforth Corp does not guarantee that it is error-free, nor does Dataforth Corp make any other representation, warranty or guarantee that the information is accurate, correct, reliable or up-to-date. Dataforth Corp expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties of merchantability or fitness for a particular purpose.
This information is provided only as a convenience on an "as is" basis and Dataforth Corp. or its representatives or distributors are not responsible for any incorrect, inaccurate, or incomplete information. You are solely responsible for (1) selecting the appropriate Dataforth products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements.
This information is provided only as a convenience on an "as is" basis and Dataforth Corp. or its representatives or distributors are not responsible for any incorrect, inaccurate, or incomplete information. You are solely responsible for (1) selecting the appropriate Dataforth products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements.
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