sauermann TX Series Inclined Liquid Column Manometer User Manual

: June 9, 2024
: sauermann

Table of Contents

TX Series Inclined Liquid Column Manometer
Fix the liquid column manometer
Set the liquid column manometer
Connection of the liquid column manometer
Calibration of a manometer
Maintenance
References
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INSTALLATION OF AN
INCLINED LIQUID COLUMN
MANOMETER

sauermann TX Series Inclined Liquid Column Manometer

User manual

TX Series Inclined Liquid Column Manometer

sauermann TX Series Inclined Liquid Column Manometer - Fig
1

Pressure connection
Setting screw of the level
Spirit level
Pressure connection
Sliding ruler
Knurled setting screws
Receiver
Liquid density

Fix the liquid column manometer

Fix the manometer on a wall or a vertical wall with 2 screws Ø 5mm maximum.
Set the horizontality of the manometer with the incorporated level and its setting screw.
It is recommended to use a precise level to get a better precision The precise level must be placed above the manometer.
For proper measurements, the bubble of the spirit level must be between the two lines.

Unscrew the pressure connection situated above the receiver and pour the manometer fluid up to the zero point of the graduation.
If your manometer has safety connections, remove the two measure connections of the manometer and slowly pour the manometer fluid up to the zero point of the graduation.
Screw the pressure connection (solid but moderated tightening). It is not necessary to strongly tight because the connection has a o’ring seal.
With a squeeze bulb, a pump or a pressure generator, send up the fluid up to the full scale of the ruler (this has the effect to wet the liquid column).
Wait 2 to 3 minutes until the stabilization of the fluid.

Set the liquid column manometer

After pouring the fluid up to the zero pint of the graduation (as described on step 1), it is necessary to perform the adjustment. For that, unscrew slightly the two knurled screws and move to the right or left the ruler to have the setting described below below (the meniscus must be placed on the zero) :

Liquid column
Meniscus
Ruler

Reminder of the reading principle on a inclined liquid column manometer: for all measurements, it is imperative to read in the meniscus deep.

This handling can cause an important move of the ruler, two problems may occur:

There is not enough liquid in the receiver, in this case : add some liquid (see step 1). Screw the pressure connection and wait 2 to 3 minutes, then repeat the procedure to set the zero as described hereabove.
There is too much liquid, in this case : take an empty burette, squeeze it and suck up the liquid excess. Screw the pressure connection and wait 2 to 3 minutes then repeat the procedure to set the zero as described hereabove.

Connection of the liquid column manometer

Connect the manometer with a Ø 5 x 8 mm crystal tube to the source of pressure or depression to check:

For a pressure measurement: connect the crystal tube on the left connection (+).
For a depression measurement: connect the crystal tube on the right connection (-).
For a differential pressure: Connect on the left connection (+) the highest pressure and on the right connection (-) the lowest pressure.

If you need pass through a wall to make some pressure measurements, it is advised to use glanded penetrations in order to avoid a premature wear of the silicone tubes (there are different lengths available).

Calibration of a manometer

With a pressure generator, generate a determined pressure.
Wait 2 to 3 minutes the stabilization of the measurement.
Compare the results of the pressure generator and of the manometer. If the manometer has a different value from the value of the pressure generator, adjust the manometer with the setting screw of the level until getting the same value.

Example:
If the generator shows 4.8 mmH2 O and the manometer 5 mmH2 O: in this case, slightly unscrew the setting screw of the level until getting the same value (the bubble of the
spirit level must be between the two lines. See step 1). If the generator shows 5 mmH2 O and the manometer 4.8 mmH2 O: in this case slightly screw back on the setting screw of the level until getting the same value (the bubble of the spirit level must be between the two lines. See step 1).