SCM9B-1151

Voltage Input, Sensor-to-Computer Module

SCM9B-1151
Voltage Input, Sensor-to-Computer Module

Product Availability:
  • Usually stock to 2-3 weeks.

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

Specifications

  • Input Range -100 to +100 V
  • Output Range RS-232C
  • Bandwidth programmable
  • Mechanical Format Plug-in or hockey puck
  • 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 250 VAC
  • Gain/Offset Adjust Autozero, autocal
  • NMR (60 Hz) Rejection N/A
  • External I-to-V Resistor N/A
  • Output Control RS-232C
  • Output Resistance N/A
  • Dimensions 3.60 x 2.45 x 1.10 inches
  • Interface 10 pos term block
  • Customization no
  • Weight 103 grams (3.63 ounces)

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

SCM9B-1000/2000 block diagram

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.
View Dataforth cross-reference data.
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.

FAQ

Due to resource constraints on my computer, I'm unable to open the three dimensional CAD models provided on your website. Does Dataforth provide two demensional CAD models for download as well?
Two dimensional CAD models can be generated upon customer request. Please contact Customer Service for assistance.
What is the difference between the SCM9B-1000 series and the SCM9B-2000 series?
The SCM9B-1000 and the SCM9B-2000 have the same physical dimensions. The SCM9B-1000 hardware is similar to the SCM9B-2000 series in every respect except that the SCM9B-2000 contains built-in commands to create custom input-to-output transfer functions.
How does the load resistance of a module affect the noise at the output?
Noise at the output of a module is independent of load resistance.
How do I convert an RMS voltage to its corresponding peak voltage?
To convert an RMS voltage to its corresponding peak voltage, you simply take the RMS voltage value and multiply it by the square root of 2, or roughly 1.414. For example, 1500Vrms corresponds to a peak voltage of 1500 * 1.414 = 2121 Vp
If the input range of my signal conditioner is -1V to +1V and the output range is 0 to 10V, does this mean that it ignores polarity?
A signal conditioner with these I/O ranges does not mean that the module ignores the polarity of your voltage input. The output of voltage input modules are scaled linearly, meaning an input of -1V would correspond to an output of 0V, an input of 0V would correspond to an output of 5V, an input of +1V would correspond to an output of 10V, and so on.
Analog Devices announced a last time buy and discontinuance of their signal conditioning modules. Can I replace them with Dataforth signal conditioning modules?
Yes, in general, Dataforth signal conditioning modules are a direct replacement for all Analog Devices signal conditioning modules. e.g. "SCM5B35-xx: Linearized 4-Wire RTD Input Modules" will replace Analog Devices "5B35: Isolated 4 Wire RTD Input Signal Conditioning Module". Please note that Dataforth signal conditioning modules are RoHS II compliant.
Can Dataforth provide calibration reports for modules I purchased?
Yes we can provide calibration reports for the modules that you purchased. You can either a) visit https://www.dataforth.com/TestDataReport.aspx to search for Test Report Datasheets by Serial Number or b) you can send us a list of model numbers and their serial numbers to support@dataforth.com

Was this content helpful?
Thank you for your feedback!
Menu
Top