Related Manuals for New Cosmos Electric SDM-72
Summary of Contents for New Cosmos Electric SDM-72
- Page 1 ●Keep this instruction manual available for quick reference when needed. ●Read this instruction manual carefully before use. Instruction Manual No.: SDM-72CEET...
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Page 2: Table Of Contents
Table of Contents 1. Introduction ....................1 2. Features ......................2 3. Safe Operation ....................2 4. Product Layout and Functions..............3 5. Operating Procedure ..................4 5-1. Installing Batteries ................. 4 5-2. Battery Check ..................4 5-3. Measurement ..................5 5-4. -
Page 3: Introduction
1. Introduction We thank you for purchasing the Portable Grease Steel Dust Meter Model SDM-72 for the measuring of steel dust in the lubricating grease. The Portable Grease Steel Dust Meter employs a magnetic balance type electromagnet induction method as the measuring principle, and is a useful simplified diagnosis tool for the inspecting the abrasion status of the bearings and gears. -
Page 4: Features
2. Features • The employed magnetic balance type electromagnetic induction method is a highly sensitive for the detection of the abrasion in the initial stage. • Suitable for diagnose of irregularity in the ultra slow speed revolution range where diagnosis by vibration method is difficult. •... -
Page 5: Product Layout And Functions
4. Product Layout and Functions ⑧ ② ⑨ ① ⑥ ④ ⑤ ③ ⑦ Name Function Rotates the switch to “MEAS” position to commence Selector switch measurement. Sampling port Insert port for grease sample. Indicates a digital reading of the steel dust in the Display grease sample, and a battery voltage. -
Page 6: Operating Procedure
5. Operating Procedure 5-1. Installing Batteries Open the battery lid and insert 4 AA size (LR6) alkaline dry batteries correctly with respect to their polarity (+ and -). Do not mix old and new batteries. Press the batteries with battery lid and slide to close. -
Page 7: Measurement
5-3. Measurement Rotate the selector switch to “MEAS” to shift to measurement mode. Check to see that the display indicates 0, and insert the sampling container containing the sample grease into the sample port. (Refer to 5-4. Collection of Grease Sample for sampling procedure of oil sample.) * The sampling container must be inserted with the collected grease facing upward (same direction as the front surface of the instrument.) - Page 8 CAUTION • When the reading exceeds the upper limit of the numeral display reading (approximately 6.5%Wt), the display will indicate “ - - - - “. CAUTION • It is recommended to insert the sampling container gently. Do not apply an impact when inserting the sampling container.
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Page 9: Collection Of Grease Sample
5-4. Collection of Grease Sample For the measurement of steel dust to be conducted with this instrument, the grease sample is to be collected from rotating portion of the machinery. When a fresh supply of grease supplied to bearing, the old discolored waste grease is expelled, collect this waste grease with the spatula and fill sampling container. - Page 10 CAUTION • When sampling the grease, make sure not to mix dust, dirt or rust around the bearing. NOTE • Readings may vary according to the sampling position, as the steel dust in waste grease is not distributed evenly. Measure the value at least 3 to 4 times and take an average or maximum value.
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Page 11: Error Message
6. Error Message This instrument has a function of indicating error messages. Read along with “8. Troubleshooting” on page 11 to take measures. Error Message Cause Measure Remove the syringe Zero adjustment could not be performed, holder and confirm the because the power was turned on while indication becomes 0 the syringe holder was inserted. -
Page 12: Handling And Storage
7. Handling and Storage CAUTION • This instrument is not explosion-proof. It must be used in a safe location. • Remove the batteries and store the instrument if it is not be used for a long time. • Do not disassemble or modify the instrument or change the structure or electric circuits. -
Page 13: Troubleshooting
8. Troubleshooting Before requesting for repairs, please walk through the Troubleshooting below Problem Cause Remedy No indication appears on Battery life. Remove the batteries and insert the display when the again (page 4). selector switch is set to Battery polarity is Insert batteries correctly with “BATT”... -
Page 14: Warranty
9. Warranty New Cosmos Electric Company Limited (New Cosmos) offers the following as the sole and exclusive limited warranty available to the customer. This warranty is in lieu of, and customer waives, all other warranties of any kind or nature, expressed or implied, including without limitation, any warranty for merchantability or fitness for a particular purpose. -
Page 15: Specifications
10. Specifications Items Specifications Remarks Model SDM-72 Magnetic balance type electromagnetic induction Measuring Principle method. Applicable to Concentration of iron particles in waste grease Measurement %Wt = weight 0 - 5.000 %Wt Range ratio% Indicator 4 digit liquid crystal display Minimum Solution 0.001 %Wt... -
Page 16: Appendix
Appendix Reference Materials 1. Measuring Principle The measuring principle of the magnetic balance electromagnetic induction method is shown in the illustration below, the magnetic circuit sensor is composed of an exciter coil connected to the both sides of the detection coil, the magnetic field generated by both exciter coils are blanketed in the vicinity of the center detection coil. -
Page 17: Metal Materials Measurable
2. Metal Materials Measurable Table 1 of Metal Materials that can be Measured (OK: Measurable, NA: Not measurable) Metal and Materials Magnetism Measurable Remarks Iron, nickel, cobalt Ferromagnetism Aluminum, chrome, manganese, titan, Para magnetism stainless steel (SUS-304, SUS-316) Copper, silver, lead, Diamagnetic zinc, tin Raw material of... -
Page 18: Practical Use
3. Practical Use Management and Simplified Diagnosis of Oil Lubricated Bearings & Gears • To be used to diagnose the steel dust contents in the oil used for lubrication of low speed rotation to high speed rotation machinery. Most useful for the diagnosis of the abrasion of the bearing and gears used at low speed rotation and difficult to diagnose with the vibration method, and to improve the accuracy of diagnosis when jointly used with the vibration method for... - Page 19 Correlation between the Abrasion of the Bearing and Steel Dust Concentration in the Correlation between the Abrasion of the Bearing and Steel Dust Concentration in the Grease. Grease. Table 2 shows the inspection results of correlation between the abrasion of the bearing Table 2 shows the inspection results of correlation between the abrasion of the bearing and steel dust concentration by disassembling and inspecting the bearing of various and steel dust concentration by disassembling and inspecting the bearing of various...
- Page 20 Cycle of Measurement The cycle of measurement of the grease steel dust concentration is related to collection of extracted grease at the cycle of lubrication of fresh grease to the rotating machinery. The cycle of grease application would differ with the kind and the specifications of the rotating machinery used, and must be determined with the condition of operation, the table below show an example of the cycle of measurement.
- Page 21 Simplified Diagnose of the Management Trend and Abrasion of the Bearing The simplified diagnose of the steel dust concentration in the grease would provide abrasion status of the bearing, the criterion can be made with a single measurement data, also important for the management trend by conducting periodical measurement.
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- Page 24 Manual Revision History Edition No. Date Revision SDM-72 CEET June 2008 July 2012 August 2013 Manufacturer: New Cosmos Electric Co., Ltd. 2-5-4 Mitsuya-naka, Yodogawa-ku, Osaka 532-0036, Japan TEL: +81-6-6309-1505 FAX: +81-6-6308-8129 http://www.new-cosmos.co.jp/en/index.html...
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