Arizona Instrument COMPUTRAC MAX 4000 Quick Guide

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4.8. Perform Balance Span Calibration
To get here, navigate:
[MENU]

CALIBRATION MENUBALANCE CALIBRATION MENUPERFORM
SPAN CALIBRATION
Span calibration should be done:
• Immediately after initial setup and
60-minute warm-up from cold start.
• Whenever the instrument is moved.
• Whenever a problem is suspected.
• As your quality policy dictates.
Performing the calibration:
• Select the PERFORM SPAN
CALIBRATION menu item.
• The introduction screen is displayed;
press [GO] to continue.
• The heat chamber must be less than 50 °C; otherwise the instrument delays the
calibration until the chamber cools adequately.
• Follow the instructions. A 20-gram weight is used to calibrate the balance. The weight
is loaded twice during the span calibration: one time for calibration and a second time
for verification. During the weight loading and removal, avoid excess pressure
on the balance. Use the tweezers included with the MAX
®
4000 to gently place
the weight on the pan.
• After successful calibration, the calibration report is displayed and can also be printed
if desired.
• If the calibration routine failed or the verification weight value fails, rerun the
calibration. If the calibration fails again, contact AZI Customer Service.
4.9. Perform The Weight Test
The weight test simulates moisture loss with the removal of one of two known weights,
using the (Factory) WEIGHT Test Program, and verifies the balance is responding
properly.
This test may be used:
• At the interval established by your quality assurance/control program.
• Any time the instrument is moved, the power switched off, or the instrument is jarred
or bumped.
• If there is any concern about the accuracy of the instrument.
• To become familiar with the instrument.
Both a 3-gram and a 5-gram weight are required to perform the weight test. Test Results
should fall between 37.480% and 37.520%. If the results are out of tolerance, repeat the
balance calibration and weight test. If the results are still out of tolerance, call AZI
Customer Service for assistance.

Arizona Instrument COMPUTRAC MAX 4000 Specifications

General

Brand	Arizona Instrument
Model	COMPUTRAC MAX 4000
Category	Measuring Instruments
Language	English