Flow Rate Sensor (QS)

fluid-check® with hydraulic measuring point serv-Clip® Typ 2

Hydraulic Flow Rate Sensor- flow meter (QS) and Leakage Sensor (LS) fluid-check with hydraulic measuring point serv-Clip® Typ 2 (no cutting pipelines) (for hydraulic and gear oils) INSTALLATION IN 5 MINUTES- FLUID POWER CONTROL



With PBT housing (QS-2-B-008 / LS-2-B...)    

flow-rate-and-leakage-sensor-fluid-check-for-hydraulic-and-transmission-oil With stainless steel housing
(QS-1-B-008 / LS-1-B...)




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fluid-Check ® For monitoring and controlling plants and machinery at hydraulic systems

What can I measure?

With the Flow rate sensor (QS) :
  • Monitoring flow rate and wear of pumps /cylinders
  • Operability of accumulators
  • Filter transmittance
  • Heat exchangers
  • Nozzle flow rate
  • Speed of hydraulic motors

With the Leakage sensor (LS) :Monitoring flow rate and wear of pumps

Seal damages and leakage identification

fluid-Check Monitoring flow rate and wear of pumps

Led lights inform from 4..20mA stand of flow up to 630bar(9,100 psi), from minimal quantities like 0,02 L/minute and for diameters from 12mm can be put in practice the fluid-Check®.
The leakage sensor fluid-Check® is ready to be use and will be programmed by BOLENDER-Germany according necessities of the client in liters or gallons per minute. It is based on the calorimetric principle, that means the sensor head has an intern thermo element and heating where the running oil temperature will be measured.
The measuring cycle takes 3 seconds.
The sensor head temperature raises at 2°C. The time for this will be measured and the flow rate will be calculated. The needed time for measuring is 15 seconds. The special on this “made in Germany” product is not only the easy installation of 5 minutes- no cutting pipes and without contamination with an Allen wrench.
The hydraulic operator gets with the fluid-Check® sensor and the measuring connection serv-Clip® with ¾” screw that opens a wide choice of measuring devices because one can deinstall the fluid-Check® and install at the same point sensors-transducers for temperature, pressure or manometers, pressure gauges, hydraulic horses.
BOLENDER-Germany promises to meet the complex requirements for fluid measuring and pipe working with a cheap solution avoiding consequential expensive reparations of hydraulic systems.

For pipes over 3“ (88,9 mm) and wall thickness from 6 mm ask about our adapter SC-XE-607.

Calibration service :
You get pro sensor a data sheet with curves (comparison mA with l/min).

Inform us the ID of the pipeline and the wished measuring range from/to in l/min.

fluid-Check Monitoring flow rate and wear of pumps fluid-Check

Technical data

- Measuring range 0,05 ...8 Meter/Second
- Flow rate QS up to 600 Liter/Minute
,depending on ID
- Leakage LS from 0,02 Liter/Minute,
- Pressure 630 bar ( 9100 psi)
- Temperat. range -20..80°C
- Threaded coupling G 3/8 male
- Accuracy +/- 2%
- Configuration 3 wires
- Output signal 4 ... 20 mA (Analogue)
- Power supply 24 V DC +/- 10%; 150mA
- Connection M12 Universal system
- For pipes with Ø 12 mm and larger
- Display 6 LED lights
- Setting per Micro button
- Protection mode IP 65
- Sensor head   stainless steel 1.4571
- Housing

PBT (QS-2-B-008 / LS-2-B...)

or stainless steel

(QS-1-B-008 / LS-1-B...)

(*) FOR STAINLESS STEEL PIPES up to 5,5mm wall thickness please ask about our special needle Art. Nr. 501-041-02