User's Manual Part 1
THE READALL INTERROGATOR User Guide
Revised January 2001
Page 48 of 62
successful, and it speeds the
process of getting a good read
by avoiding the delays caused
by the unit waiting for you to
press the Read button. You
need to determine if the
automatic retries will work
for you.
Calculator
If you find you need a calculator, possibly to compute a consumption value, press the
Calculator button on the Utilities menu. The ReadAll’s built in calculator will start.
You’ll see this screen.
Simply enter the first number and press the function button you wish
• Add – by pressing the “+” button
• Subtract – by pressing the “-“ button
• Multiply – by pressing the “*” button
• Divide – by pressing the “/” button
Note that decimal numbers can be entered using the decimal point button. Next enter the
second number and press the Equal sign button. The ReadAll will display the result in
the box.
Let’s do an example. Enter “355” and press the divide by ( / ) key. Next, enter “113”
and press the equal sign. You should see this screen.










