Computrac Weight Set
We supply Class F weight sets with all of our Computrac® moisture analyzers for balance calibration. Since customers occasionally have
questions regarding the specification differences between Class F and Class 2 weights in the calibration of analytical balances, we have
provided this brief explanation.
Internally, our staff uses Class 1 and Class 2 weight sets to calibrate and verify the operation of each unit prior to shipment. Typically,
though, Computrac® moisture analyzers are found on the production floor where they are operated and maintained by production personnel.
Class 2 weights, which require special handling by trained individuals, do not encourage operational checks on the floor. Class F weights,
on the other hand, promote the frequent checks necessary for accurate and reliable results, while providing tolerances that exceed our own
specifications. They are a convenient, economical and easily handled alternative.
The Class F 3g and 5g weights supplied with all Computrac® moisture analyzers are to be used as a calibration check only. This check
tests the accuracy of the balance in measuring proportional weight changes. The tolerance for the weight test using the 3g and the 5g
Class F weights is 37.50%, +/- 0.02. In order for the weight test to be out of tolerance due to inaccuracies in the weights, the weights
would have to vary more than 1.5mg from the 3g or 5g nominal value. Class F weights are rated to within 0.5mg of the nominal value. For
the 20g calibration of the internal balance, the Class F weight has a tolerance of 0.8mg, this exceeds our internal specification of 20g
+/- 3.0mg.
Please feel free to contact our customer service department at 602-470-1414 or 800-290-1414, or email Technical Support with any additional
questions or concerns you may have regarding this or any other issue.
Printer Compatibility
All Computrac® MAX® series moisture analyzers interface with ASCII/DOS format printers. Units with firmware revision 3.08 and higher
also interface with Canon raster format printers. The RS-232 port found on these units can also be used with serial-type printers. AZI has
verified that the following printers are compatible with Computrac® MAX® series moisture analyzers:
Computrac® MAX® 5000 (Firmware Revisions 1.11 and later)
| Printer Make and Model |
MAX® Printer Driver |
| Canon BJC-250 |
Canon |
| Canon BJC-1000 |
Canon |
| Epson 440 |
Epson ESC/P2 |
| Epson 880 |
Epson ESC/P2, Epson Raster |
| Epson C82 |
Epson ESC/P2, Epson Raster |
| Epson C84 |
Epson ESC/P2, Epson Raster |
Epson C86
will work with older firmware revisions, but graphing feature will be inoperative. |
Epson ESC/P2, Epson Raster |
| Epson C88 |
Epson Raster |
| Epson C88+ |
Epson Raster |
| Seiko DPU-414 |
Seiko DPU |
Computrac® MAX® and MAX® XL (Firmware Revisions 4.33 and higher)
| Printer Make and Model |
MAX® Printer Driver |
| Canon BJC-250 |
Canon |
| Canon BJC-1000 |
Canon |
| Epson 440 |
Epson ESC/P2 |
| Epson 880 |
Epson ESC/P2, Epson Raster, Epson C84 |
| Epson C82 |
Epson ESC/P2, Epson Raster, Epson C84 |
| Epson C84 |
Epson ESC/P2, Epson Raster, Epson C84 |
Epson C86
will work with older firmware revisions, but graphing feature will be inoperative. |
Epson C84 |
| Epson C88 |
Epson ESC/P2, Epson C84, Seiko DPU |
| Epson C88+ |
Epson Raster |
| Seiko DPU-414 |
Seiko DPU |
Computrac® MAX® XL (Firmware Revisions 4.26 - 4.31)
| Printer Make and Model |
MAX® Printer Driver |
| Canon BJC-1000 and 2000 |
Canon |
| Canon BJC-250 |
Epson Old, Canon |
| Epson 440, 740, 740i |
IBM, Epson Old |
| Epson 880 |
IBM, Epson New |
| Epson compatible ASCII/DOS |
Epson Old |
| Epson Stylus C80, C82 |
IBM, Epson Old, Epson New |
| IBM compatible ASCII/DOS |
IBM |
| Seiko DPU (serial or parallel mode) |
Seiko DPU |
Computrac® MAX® XL (Firmware Revision 4.21)
| Printer Make and Model |
MAX® Printer Driver |
| Canon BJC-1000 and 2000 |
Canon |
| Canon BJC-250 |
Epson, Canon |
| Epson 440, 740, 740i |
IBM, Epson |
| Epson 880 |
IBM, Epson |
| Epson compatible ASCII/DOS |
Epson |
| Epson Stylus C80, C82 |
IBM, Epson |
| IBM compatible ASCII/DOS |
IBM |
| Seiko DPU (serial or parallel mode) |
SII (for parallel interface) |
Computrac® MAX® XL (Firmware Revisions 3.08 through 4.17)
| Printer Make and Model |
MAX® Printer Driver |
| Canon BJC-1000 and 2000 |
Canon |
| Canon BJC-250 |
Epson, Canon |
| Epson 440, 740, 740i |
IBM, Epson |
| Epson 880 |
IBM, Epson |
| Epson compatible ASCII/DOS |
Epson |
| Epson Stylus C80, C82 |
IBM, Epson |
| IBM compatible ASCII/DOS |
IBM |
| Seiko DPU (serial or parallel mode) |
SII (for parallel interface) |
Computrac® MAX® (Firmware Revisions 3.07 or lower)*
| Printer Make and Model |
MAX® Printer Driver |
| Canon BJC-250 |
Epson Old, Canon |
| Epson 440, 740, 740i and 880 |
IBM, Epson |
| Epson compatible ASCII/DOS |
Epson Old |
| Epson Stylus C80, C82 |
IBM, Epson |
| IBM compatible ASCII/DOS |
IBM |
*Firmware 3.07 or lower will not support raster format printers.
Note: With international installations, the end-user may see different characters on printed reports when compared
to the characters seen on-screen. These differences are often caused by non-English character sets selected for printer output.
AZI has verified that the following printers are compatible with Computrac® Vapor Pro® series moisture analyzers:
Firmware Revisions 1.12 and higher:
| Printer Make and Model |
Printer Driver |
| Canon BJC-250 |
Canon |
| Canon BJC-1000 |
Canon |
| Epson 440 |
Epson ESC/P2 |
| Epson 880 |
Epson ESC/P2, Epson Raster, Epson C84 |
| Epson C82 |
Epson ESC/P2, Epson Raster, Epson C84 |
| Epson C84 |
Epson ESC/P2, Epson Raster, Epson C84 |
| Epson C86 |
Epson ESC/P2, Epson Raster, Epson C84 |
| Epson C88 |
Epson C84 |
| Epson C88+ |
Epson Raster |
| Seiko DPU-414 |
Seiko DPU |
Firmware Revisions through 1.11A:
| Printer Make and Model |
Printer Driver |
| Epson Stylus C80, C82 |
Epson Old, Epson New |
| Epson 440, 740, 740i |
IBM, Epson Old |
| Epson 880 |
Epson New |
| Canon BJC-250 |
Epson Old, Canon |
| Canon BJC-1000 and 2000 |
Canon |
| Seiko DPU (serial or parallel mode) |
SII (for parallel interface) |
| IBM compatible ASCII/DOS |
IBM |
| Epson compatible ASCII/DOS |
Epson Old |
Note: With international installations, the end-user may see different characters on printed reports when compared
to the characters seen on-screen. These differences are often caused by non-English character sets selected for printer output.
New Parameter Settings For Sodium Tartrate
Incremental changes and improvements over the years to the MAX® series units has changed the heating and measuring characteristics
of these industry leading instruments. These changes include implementation of UL/CE approved electronics, improved heater wiring and
connections, and updated firmware. To ensure a continuation of the highest quality testing available for our customers, the time has
come to revise the testing parameters for sodium tartrate.
We have worked closely with our supplier to assure the highest quality sodium tartrate. We have also checked our own in-house protocols
to verify that we are calibrating the units with the highest degree of accuracy. We are satisfied that the following minor change in
the test parameters for sodium tartrate will bring the moisture value to the center of the acceptable range.
To change the value:
- Turn the instrument off for five seconds.
- Turn the instrument on and press the left most key below the display followed by the right most key. Press the Memry Key and
select in order:
- MEMORY START MENU
- ADD/EDIT MEMORY START
- 001 ID: TARTRATE
- LIFT COMP PCT
- Edit the value to 100 (100%)
- Use the ESC key to return to the main Test Screen.
- Turn the instrument OFF then switch it back ON. The instrument is now ready to operate normally.
Call Arizona Instrument Customer Service at (800) 528-7411 or (602) 470-1414, or e-mail Technical Support with any questions you may.