Related Manuals for Hansford sensors HS-620
Summary of Contents for Hansford sensors HS-620
- Page 1 Vibration Monitoring For Industrial Applications User Guide HS-620/630 Monitoring Kits © 2016 Hansford Sensors www.hansfordsensors.com...
- Page 2 Hansford Sensors Ltd. September 2016 The HS-620 Vibration Meter Kit is an ideal low cost entry level vibration monitoring instrument, designed for Maintenance Technicians to use on site, helping to give protection to important plant machinery. The HS-630 adds an easy to use temperature measurement function.
- Page 3 HS-620/630 User Guide HS-630 in case QM014 Issue 5...
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Page 4: Table Of Contents
HS-620/630 User Guide Contents 1. Overview 1.1 HS-620/630 Kit Contents 1.2 Overall Vibration Mode 1.3 Bearing Status Mode 1.4 Measurement Units 2. Operating Instructions 2.1 Sensor Connection 2.2 Power On/Off 2.3 Key Functions 2.4 Overall Vibration Measurement & Assessment 2.5 ISO Machine Groups 2.6 Bearing Status Check... -
Page 5: Overview
HS-620/630 User Guide 1. Overview The HS-620 Vibration Meter Kit is a reliable and easy to use hand-held machine condition inspection instrument. It provides vibration measurement, alarm indication and a bearing status check facility. The HS-630 kit provides an additional facility for non-contact temperature measurement. -
Page 6: Operating Instructions
HS-620/630 User Guide 2. Operating Instructions BNC connector Integral Cable LCD Screen BRG Key VIB Key Hand Probe with Sensor SEL Key Figure 1. The VBA20 2.1 Sensor Connection Fit the vibration sensor to the machine measurement position via a magnetic base or stud. -
Page 7: Key Functions
HS-620/630 User Guide 2.3 Key Functions SEL key - Press SEL to switch-on the meter. In the Overall Vibration mode press SEL to toggle through the measurement parameter options: Table 1 OVERALL VIBRATION MODE Measurement units - specified on order... -
Page 8: Overall Vibration Measurement & Assessment
HS-620/630 User Guide 2.4 Overall Vibration Measurement & Assessment At switch-on the meter defaults to the Velocity measurement mode, with the units ‘mm/s rms’ indicated at the bottom right of the display. If required, press SEL to select acceleration or displacement. Note that no vibration assessment is available on these ranges. -
Page 9: Bearing Status Check
HS-620/630 User Guide 2.6 Bearing Status Check Fix the sensor directly to the bearing housing as close to the bearing as possible. Note that valid high frequency readings are unlikely to be measured using hand-pressure and the spike. Press the BRG key to enter the Bearing Status mode. -
Page 10: The Iso10816-3 Machine Vibration Standard
HS-620/630 User Guide 3. The ISO10816-3 Machine Vibration Standard Industrial machines covered by the ISO10816-3 standard include: • Steam Turbines with nominal power less than 50MW • Steam Turbines with nominal power above 50MW with speeds less than 1500rpm or above 3600rpm (i.e. - Page 11 HS-620/630 User Guide Industrial machines with power above 15kW and nominal speeds between 120-15000 r/min Unit Group 1 and 3 Group 2 and 4 mm/s Rigid Flexible Rigid Flexible 0-1.4 1.4-2.3 2.3-2.8 2.8-3.5 3.5-4.5 4.5-7.1 7.1-11 Figure 2. ISO 10816-3 Vibration Levels The machine mountings affect the resonances related to the basic running speed of the machine.
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Page 12: Bearing Status Assessment
HS-620/630 User Guide 4. Bearing Status Assessment When the rolling elements move inside a bearing, broadband noise and vibration is generated. This increases if the bearing is not properly lubricated, or is overloaded sue to misalignment or damaged surfaces. The bearing vibration Bg or Bv measured by the meter is the RMS value of all high frequency bearing vibrations between 1kHz and 12kHz. -
Page 13: Bv Value
HS-620/630 User Guide 4.2 BV Values BV measurement is a long established method for detecting bearing faults which gives reliable indication of bearing condition in 80-90% of cases. The rule-of-thumb assessment used in the metre is as follows: • BV < 1mm/s Healthy bearing, correctly greased •... -
Page 14: Surface Temperature Measurement
HS-620/630 User Guide 5.1 Surface Temperature Measurement The temperature sensor measures the average temperature in a circle of diameter one-eight of the distance between the surface and the sensor. For example, when the meter is held 1m from a surface, the sensor will respond to a 125mm spot diameter on the surface. -
Page 15: Specification
HS-620/630 User Guide 6. Specifications Constant Current Accelerometer 100mV/g other inputs on request Input: Acceleration: 0-50gPk, Frequency Range 10Hz-12kHz Vibration: Velocity:0-350 mm/s RMS, Freq. Range 10Hz-1kHz Automatic Alarm Check: ISO10816-3. Displacement: 0-4000µm Peak-Peak, Freq. Range 10Hz-1kHz Bg: 0-20 g RMS Freq. Range 1kHz -12 kHz Applies to Bearing: Bg line &... -
Page 16: Warranty
HS-620/630 User Guide 7. Warranty All goods are guaranteed against defects in materials and workmanship, subject to specific exclusions, for a period of 36 months from the date of purchase. In the event of failure within 36 months of original purchase, the company will promptly repair or replace the defective components without charge. - Page 17 3. Enter the Serial number, sign the calibrated by and date the date of HS-620/630 User Guide 4. Cut out the certificate of calibration and include this with the items. CERTIFICATE OF CALIBRATION We certify that this product has been calibrated in...
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Page 18: Certificate Of Calibration
HS-620/630 User Guide Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: - 16 - QM014 Issue 5... - Page 19 HS-620/630 User Guide Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: - 17 - QM014 Issue 5...
- Page 20 HS-620/630 User Guide Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: - 18 - QM014 Issue 5...
- Page 21 HS-620/630 User Guide Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: Certificate of Calibration Model No: Serial No: Calibrated By: Date of Calibration: - 19 - QM014 Issue 5...
- Page 22 +44 (0) 845 680 1957 sales@hansfordsensors.com...