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7250, 7252, 7050, 7052 Pressure Controller & Monitor Tilt Test

Perform a Tilt Test to check the integrity of the Quartz Bourdon Tube (QBT) sensor.

Ensure that the controller (or monitor) is in the MECHANICAL ZERO screen by this path, MENU||CALIBRATE||ZERO|MECHANICAL ZERO


1. Document the reading

2. Lift the left side up with a 1 to 2 inch (2.5 to 5 cm) block. Wait a few seconds for the reading to settle. Document the reading.

 

3. Lift the right side up with a 1 to 2 inch (2.5 to 5 cm) block. Wait a few seconds for the reading to settle. Document the reading.

The yellow bar on the display should move, then return to approximately the same value as reading #1 with each tilt. After each tilt, if you see a significant difference in readings from reading #1 (for example >30% change in value) report the values back to Pressure Technical Support as this may be a sign of a damaged sensor.

The official specification on the tilt sensitivity is <= 0.002% FS/degree. Also verify that the power-on self-check passes. You can also do this self-test in the TEST screen.

Here is the same test with specifications

  1. Change the units on the front panel to “% FS” instead of kPa, Bar, psi,etc.
  2. Zero the unit through the front panel <Menu>, <Calibrate>, choose sensor, <Zero>.
  3. Place a ½ inch (1 cm) spacer under the front and back feet on the right side. When the reading stabilizes, it should be less than 0.0010%FS.
  4. Move the spacers to the front feet of the unit (left and right side). When the reading stabilizes, it should be less than 0.0010%FS.

A link to the same information in a pdf file is below.

The mechanical zero tool information is here if one is needed. Photo with scissors shows how big it is.
Part Number: 3878975
Description: 7250-111,TOOL, PHOTOCELL ADJUST

Parts can quoted or ordered by emailing orders@flukecal.com or calling +1-877-355-3225

     

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