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Lake Balance Calibration Solutions
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Flow

2 SLPM Flow Meter

Sample make/model: ALICAT SCIENTIFIC · MW-2SLPM-D/5M

2 SLPM Flow Meter

Description

Proficiency test for low-flow nitrogen flow meters at 2 SLPM. Use your standard lab procedures and report expanded uncertainty.

How this PT is scored

Each reported value is compared with the Lake Balance reference value using the En number, which accounts for both your expanded uncertainty and ours. Results are available in the customer portal. See Flow proficiency testing, all calibration PT programs, and our ISO/IEC 17043 certificate & scope.

Sample instructions

To complete this PT you will need a flow standard set to mass flow in slpm and a nitrogen gas supply. When you receive the test flow meter marked FLOW-116 please allow 24 hours before the test to acclimate to room temperature.

  1. Connect the flow meter marked FLOW-116 to your flow standard and air supply.
  2. Set flow conditions on your flow standard to 1 atm and 25.00 °C.
  3. Set flow to 0.5000 slpm and record reading. Report reading and uncertainty on the Data Reporting Sheet.
  4. Set flow to 1.0000 slpm and record reading. Report reading and uncertainty on the Data Reporting Sheet.
  5. Set flow to 1.5000 slpm and record reading. Report reading and uncertainty on the Data Reporting Sheet.
  6. Set flow to 2.0000 slpm and record reading. Report reading and uncertainty on the Data Reporting Sheet.
  7. Set flow to 1.0000 slpm and record reading. Report reading and uncertainty on the Data Reporting Sheet.
  8. Email results and your uncertainty budget to proficiency@lakebalance.com
  9. After you've received your completed test results return to Lake Balance Calibration Solutions.
  10. Flow Meter Operating Instructions
  11. To set gas type:
  12. Press Menu (bottom right) and then Basic Config (bottom left).
  13. Press Gas (top left) scroll to recent and press Select (bottom right).
  14. Use Up and Down buttons (top left & center) to scroll to Recent and press Select (bottom right).
  15. Use Up and Down buttons (top left & center) to scroll to Nitrogen and press Select (bottom right).

Note: Kit barcode placeholders in these sample instructions are examples; the actual kit you receive may differ.