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    USB Hydraulic System Analyzer

USB Hydraulic System Analyzer

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Simultaneously Measures Flow, Pressure and Temperature

The Flo-Check Hydraulic System Analyzer can be used as a stationary or portable tester for both industrial and mobile hydraulic system diagnostics, and analysis of the prognostic health of a hydraulic system. It features flow, pressure and temperature sensors that are monitored by a data acquisition module. This module records the operating

parameters of the system and transfers them to the user’s laptop via the USB port.

The custom software utility is a Windows®-based application which is compatible with Windows Vista®, Windows XP, Windows 2000, and Windows 7. This intuitive software configures the displayed information into user-selected engineering units and provides real-time graphics with instantaneous readings and trends for all three measurement parameters. The software also permits the data to be saved for export into a spreadsheet program.

The Hydraulic System Analyzer is powered through the USB port of a PC, making it easy to set up and ideal for portable applications. Interfaced to the PC application, the Hydraulic Analyzer offers a straightforward method of monitoring system parameters complete with data acquisition.


  • Flow accuracy ±1% of reading @ 32 cSt
  • Field selectable US or metric readings
  • High and low set point alarms for flow, pressure and temperature
  • Captures pressure spikes up to 10,000 PSI (0.2 milliseconds duration)
  • Exports saved data to Microsoft Excel® and other spreadsheet programs
  • USB powered
  • Easy to use, plug and play
  • Calculates hydraulic power
  • Select continuous monitoring or capture data manually
  • Logs up to 12 hours
  • Records alarm history


The Flo-tech Analyzer software provides a real-time graphical and digital interface for monitoring and/or recording pressure, temperature and flow rate parameters from the Hydraulic Analyzer. In addition to the graphical and digital displays, the main screen also consists of a menu bar, buttons with common functions and alarm indicators.


  • View real time pressure, temperature, flow rate and power measurements
  • Record all measurements to a file
  • Choice of recording all measurement points or capturing points manually
  • Selection of all measurement units, US or metric
  • Ability to adjust display of graph data
  • High/Low alarm indicators set by the operator

All measurements taken can be saved once per second to a comma separated value (.csv) file for export into a spreadsheet program. For example, recording for 2 minutes would yield 120 points of data. Even though data points are only recorded once per second, pressure spikes and dips are captured by recording the maximum or minimum pressure during each measurement period. Therefore, the precise shape of the pressure spike is not recorded but its amplitude and the time it occurred are both recorded.


The graph on the main screen contains more than 60 points of data. Previous data points are saved in memory and can be viewed at any time. Adjustments can be made to optimize data that is displayed by hiding individual graph plots, adjusting the scale of each plot or adding horizontal gridlines to the graph.


There are three sets of High/Low alarm indicators on the main screen which monitor pressure, temperature and flow rate. Alarm indicators flash if the current system measurements exceed the alarm limits set by the operator and continue to flash when the current system measurements return to normal to alert the operator that an alarm condition occurred. Alarms must be reset manually to acknowledge the alarm condition.


F7160SAE 163 - 85 GPM
F7161SAE 247 - 199.9 GPM
F7162G 115 - 321 LPM
F7163G 1-1/226 - 757 LPM


¹ Each Flo-Check Hydraulic System Analyzer includes a 16.4 ft. (5 M) USB, A male to B male (IP 68) connection cable, CD-Rom of the software utility, and complete operating instructions packaged in a protective carrying case.

Accuracy±1% of reading @ 32 cSt
Accuracy<±0.5% BFSL
Stability<±0.25% of full scale
Zero Offset <±2% of full scale
TC Zero and TC Span<±1.5% of full scale
Response Time0.2 milliseconds
Calibration Error (25 °C)±1 °C
Absolute Error (over full range of sensor, 0 to 150 °C)
Without Calibration±3 °C
With Calibration±1.6 °C
Nonlinearity±0.4 °C
Repeatability±0.1 °C
Data Acquisition
Sample Rate10 kHz
PC Screen Update/Record Rate
Flow1 second (average 10K samples)
Temperature1 second (average 10K samples)
Pressure1 second (min, max, average 10K samples)
USB Power+5 VDC (supplied through USB port of a PC)
USB Voltage Tolerance+4.6 VDC min, +5.25 VDC max
Current100 mA, typ
Pressure Rating6000 PSI (414 Bar) maximum with a 3:1 safety factor; capable of 10,000 PSI transients
Operating Pressure<6000 PSI (414 Bar, 41.4 MPa, 420 kg/cm²); capable of 10,000 PSI transients
Internal Valve By-pass7500 PSI ∆P
Pressure DropSee ∆P charts below
Fluid Temperature- 40 to +300 °F (- 40 to +150 °C)
Ambient Temperature+ 32 to +185 °F (0 to +85 °C)
Storage Temperature- 40 to +185 °F (- 40 to +85 °C)
Humidity:0-90%, non-condensing
Housing6013-T351 Aluminum; anodized
Turbine RotorT416 Stainless steel
Rotor Supports6061-T6 Aluminum alloy
SealsViton standard; EPR optional
Ball Bearings440C Stainless steel
Hub Cones6061-T6 Aluminum alloy
Temperature ProbeT303 Stainless steel
Valve12L14 Steel body with 303 SS seat
Spool/Sleeve12L14 Steel
Magnetic Pick-up
BodyT303 Stainless Steel
NutT303 Stainless Steel
Electronic CaseCold rolled steel; black zinc plate with clear seal
PortsSAE Straight thread O-ring boss, female, J1926/1; ISO1179 (BSPP)