9323 Hamilton

Mentor, Ohio 44060 - USA



Scientific Solutions® Inc.

Products for Cement Mixing

Scientific Solutions has been providing products for Cement Mixing Applications since the early 1980s.  These products are used to provide control and to monitor the mixing of cement, aggregate and water to create the proper concrete mixture.

A typical cement mixing installation will have a computer that has a Scientific Solutions BaseBoard product installed.  The BaseBoard product is connected to indicators that provide measurements from a scale.

Scientific Solutions offers both the ISA and the PCI versions of the BaseBoard.  Historically, the cement mixers have used the ISA version.  The PCI version should work equally well, and actually can provide an easier and better cable solution.  Please consult with Scientific Solutions Technical support if you are interested in using the PCI version.

Erie Strayer is one of the major suppliers of cement mixers using Scientific Solutions products.


Issues when Interfacing the BaseBoard to the Rice Lake RL-520 Weight Scale Indicator.

The BaseBoard / ISA contains four main Digital I/O controllers. These are the 40pin chips located along the top of the card.  In some cement mixing applications, these Digital I/O controllers become damaged.  This issue appears to be associated with interfacing the BaseBoard to the Rice Lake Indicator Model RL-520.  Scientific Solutions tested the BaseBoard with the Rice Lake model RL-520 and found that depending upon how devices are powered-up and initialized, a situation could exist that causes "Latch-up" damage to the BaseBoard circuits.

This does not appear to be a design problem with the BaseBoard or the RL indicator, but rather is a system issue of properly mating the two pieces of equipment.

To solve this issue, Scientific Solutions suggests that you install Opto Isolation INPUT modules on the BaseBoard.

The Opto Isolation module attaches directly onto the BaseBoard card inside the computer and provides protection from damage when power is off to the BaseBoard but inputs from external equipment are active (a potential situation when interfacing to the RL indicators). The Opto module provides 2500v optical isolation protection and can handle over-voltage inputs and floating grounds. The Opto Isolation INPUT modules are about 2” x 3” with a 40 position socket connector and a 50 pin header connector. The module plugs onto the current 40 pin connector of the BaseBoard. The 50 pin header of the Opto Isolation INPUT module is then used to connect to a ribbon cable.

Without the Opto-Isolation INPUT module, the cable from the BaseBoard to the RL Indicator is 40 conductor with:

With the Opto Isolation INPUT module, the ribbon cable from the RL indicator changes.  The cable is now 50 conductor instead of 40.
The 50 conductor cable has:

Scientific Solutions offers the Opto Isolation module and a Cable & Adapter kit that can be purchased directly from Scientific Solutions and installed in the field.  With these items, the customer has everything they need to install the Opto Isolation INPUT module and cabling to protect their BaseBoard product from damage.  

Currently, Scientific Solutions has a Cable & Adapter kit for the Rice Lake Indicator Model: RL-520.

Using the Opto Isolation INPUT module isolates the BaseBoard electronics from the indicator and therefore allows more versatility to use different indicators if desired, i.e. changing from one indicator to another would be more transparent.

If you require a Cable & Adapter kit for a different indicator, please contact Scientific Solutions to discuss your needs.

Scientific Solutions Cement Mixing Products

Product Overview
More Information

Scientific Solutions BaseBoard Card
BaseBoard / ISA card
    Product Includes:
  • BaseBoard / ISA for inside the computer
  • Win-32 device drivers and LabPac32 library
For your convenience, Scientific Solutions can pre-configure your BaseBoard / ISA card with Opto-Isolation INPUT or OUTPUT modules if you desire.
    Features Include:
  • Full Size ISA Interface
  • 40pin header connectors provide up to 96 Digital I/O
  • Uses ribbon cable connections from the BaseBoard card
  • Unique design uses single ISA slot with special bracket to accommodate the four ribbon cables.
  • Easy to add Opto-Isolation modules to the BaseBoard / ISA card
Full Description and Specifications

Frequently Asked Questions

BaseBoard / ISA
Manual (html)

BaseBoard / ISA
 Manual (PDF)

Scientific Solutions Cement Mixing Accessories

Product Overview
More Information

IC100019 Digital I/O Device
BaseBoard Digital I/O Control Chip

  • Replacement Chip
  • If you find you are blowing up the Digital I/O interface, then you may want to consider purchasing an Opto-Isolator module
    • Read Discussion earlier in this page about interfacing the BaseBoard to your weighing scale indicator.


Opto Isolation INPUT Module
Opto Isolation INPUT module
  • Module Only (order interface cable & adapter for your particular indicator separately)
  • Snaps right on the BaseBoard / ISA inside the computer
  • Optical Isolation for 24 Digital I/O signals
  • Provides 2500v Optical Isolation
  • Provides for control of higher voltage and current signals
  • Helps Prevent damage to BaseBoard due to external equipment and "Latch-up"
Full Description and Specifications

RL-520 Cable and Adapter
(adapter & cable)

RL520 Adapter
(close up of Adapter)
RL-520 Interface Cable & Adapter Kit
  • Cable and adapter to interface the BaseBoard with an Opto Module to the Rice Lake Indicator Model RL-520
  • 50pin Ribbon Cable
    • 6 foot length
    • 50pin connectors on each end
      • One end directly to the Opto Isolation Module installed on the BaseBoard
      • Other end connects to the Interface Adapter which is installed on the back of the RL-520
  • Interface Adapter
    • Converts 50pin BaseBoard to DB37 pin RL-520 Connector
    • Provides proper wiring of data and status signals
    • Includes circuit with current limiting protection
Full Description and Installation Instructions