Display Unit Serial Number; Troubleshooting - Restek ProFLOW 6000 Bedienungsanleitung

8.8 Serial Number
To display the flowmeter serial number, press the
Use the (arrow) keys to select the Serial Num menu:
Serial num
Press the (menu) button again to display the serial number.
s/n:
RE100001
To return to the main menu screen, press the
To exit and return to measuring flow, press the

9.0 Troubleshooting

Problem
Multiple readings
are not giving
reproducible results
Unit does not power up
Flow value display is
erratic/jumpy
*Contact Restek or your Restek representative for return instructions for servicing a damaged unit. Additional charges may apply if the warranty has expired or the unit is damaged due to misuse.
Call Restek Customer Service at 1-800-356-1688 or 1-814-353-1300, ext. 3 (or your Restek representative) if you have any questions about this product or any other Restek product.
(Menu) button.
(Menu) button.
(Menu) button again.
Possible Cause(s)
• Unit is out of calibration
• Value is being compared to a bubble flowmeter
• Dead batteries
• The ProFLOW 6000 is very sensitive
to small changes in flow
Suggested Solution(s)
• Return the unit to Restek for recalibration*
• See Section 12.0 for a discussion of the
weaknesses of bubble flowmeters
• Replace with 2 new AA alkaline batteries
• Allow more time for flow to stabilize
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