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Qualified Personnel
The DS10 devices may only be installed by trained, qualified personnel who are able to
mount the devices correctly. Qualified personnel are persons, who are familiar with assem-
bling, installation, placing in service and operating these devices and who are suitably trained
and qualified.
Inward Monitoring
Please check directly after delivery the device for any transport damages and deficiencies.
Additional with reference to the accompanying delivery note the number of parts must be
checked.
Claims for replacement or goods which relate to transport damage can only be considered
valid if the delivery company is notified without delay.
Functional Description
The float-type flow meter must be installed in a vertical position. The flow must proceed in the
direction from the low end to the high end of the scale.
This measuring device must be connected with fittings compatible with its design. When con-
necting the device, be sure that the pipes are run stress-free and aligned so that they are
centered with the connection ports on the device. If necessary, support the pipes to prevent
the transmission of vibrations to the device.
Mounting and Adjustment
The actual operating pressure and temperature in the installation must not exceed the max-
imum values indicated in the specifications.
1. Close the needle valve on the flow meter.
2. Open the shut-off valves upstream and downstream of the flow meter.
3. For liquids, be sure to carefully bleed the air out of the piping. For gases, allow the op-
erating pressure to slowly increase. Avoid hammering or pulsing (risk of glass break-
age).
4. Open the needle valve and set the desired flow rate.
5. The flow rate is read at the upper edge of the float.
Should the operating parameters deviate from the calibration data (flow range, flowing me-
dium, pressure, density and temperature), the flow rate displayed can be converted as per
VDI / VDE - Guideline 3513.
DS10 Instruction manual 11/2021
page 3
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