SHOWAM332B测振仪器

DIGI-VIBRO Applicati***

As long as rotating or reciprocating machinery is running successfully, it keeps you, as well as itself, safe and secure. But once the machinery gets into trouble, it could produce a high level of vibration to threaten your safety. The DIGI-VIBRO provides vibration measurement for innumerable kinds of machinery, including, but not limited to, pumps, blowers, machine tools, automobiles, and aircraft. Here is a small fraction of the numerous applicati*** of the DIGI-VIBRO: - Vibration measurement for blowers used to dry automobiles after they are painted - Vibration measurement at the location of mainframes - Solenoid valve actuation condition checking - Machine tool failure inspection - Maintenance of general-pur***e engines - Maintenance of chassis dynamometers used for automotive testing - Bearing fault checking on blowers installed at garbage incineration plants - Bearing wear checking on automatic grinding machines used to fabricate clock parts - Amplitude and acceleration measurement for vibration testers - Measurement of resonance points on instruments to which engine vibration is imparted - Automatic medicine packing machine actuation condition checking - Routine checking on pumps and blowers installed at petrochemical plants - Transformer howling checking - Numeric representation of the actuation conditi*** of cell phone vibrators - Spindle vibration measurement - Cooling tower fan maintenance DIGITAL VIBRATION METER DIGI-VIBRORubber cap SensorContact pinRecords and aVIBRO RecorderVerifies and records waveforms in real-timeIn combination with VIBRO Recorder, recording and analyzing vibration waveforms are enabled.How to Install Stick the hand-held sensor to the measured object for measurement.The sensor can be conveniently clamped using a magnet.The sensor can also be screwed in ***ition.Secure the sensor with double-sided adhesive tape.analyses vibration Displays vibration waveform data by using the attached PC software.ngSelect Measurement ModesAcceleration measurement mode is suited for measuring high-frequency vibrati***, such as those from a deteriorated bearing. Bearings make several tens to several hundreds of turns each time the rotating machine in which they are used completes one turn. They also generate shock pulses when flawed or chipped. Acceleration measurement is the ideal way of detecting these pulses.When it comes to vibration measurement, one question always confronts me; how should I make acceptance/rejection decisi***? The vibration value criteria for evaluation of machine conditi*** are classified into "Tendency management," "Similarity comparison," and "Absolute value evaluation." Tendency management: This is the most steady and practical evaluation method. This method periodically measures vibration values, compares them by old reference vibration values that were obtained when the machine was running in the best conditi***, obtains the differences (increases in vibration values), and judges a maintenance time from them. Generally, it is said that the vibration values keep on going up after passing over the vibration value of about 1.6 times of a normal vibration value. When the vibration of a test machine reaches 2 to 3 time of the normal vibration value, the machine must be overhauled. The graph shown below is a record of periodic vibration measurements of a certain blower. Since faults were detected on the side op***ed to the motor, but not in the motor itself, the machine has been overhauled to return to normalcy.Acceleration measurement modeVelocity is defined as a rate of displacement per unit time, indicating a speed of said vibration. The value of velocity, which is expressed in the unit of mm/s (RMS), is proportional to both displacement and frequency. Velocity is a mode suitable for investigating general machine conditi***, as also specified in ISO 10816-1 as a typical indicator of mechanical vibrati***. Applicable frequency range is 10 to 1,000 Hz. Velocity measurement modeThe DIGI-VIBRO reads the actual travel of a vibrating object as a double amplitude, for example, as 30 PmP-P (micrometer peak-to-peak). This measurement mode is the easiest to understand and mostly widely used among the three. Ideal for measuring the vibration of rotational components, such as an imbalance. The frequency range is narrow, from 10 Hz to about several hundreds of Hz. Displacement measurement modeConcept of Acceptance/Rejection CriteriaVelocity measurement (mm/s)Motor side Op***ed motor sideVibration measurement record of No. 3 BlowerMar. 5 Mar. 12 Mar. 19 Mar. 26 Apr. 2 Apr. 9 Apr. 16 Apr. 23 Apr. 30 May 7 May 14 May 21 May 28 Jun. 4 Jun. 11 Jun. 18 Jun. 25 Jul. 1 Jul. 8 Jul. 15Similarity comparison: This method compares vibration values of machines of the same type and judges a machine of the higher vibration value (indicating the machine is abnormal). Absolute value evaluation: This method judges the vibration value according to reference vibration values defined by machine scales by ISO 10816-1. Vibration severityMachine groupsEvaluation zonesISO 10816-1RMS value of vibration velocity (mm/s)Class 1 Individual parts of engines or machines (typically electric motors of up to 15 kW) built in as parts of complete machines.Large scale generating machinery or rotating machines mounted on a rigid base.Class 2Class 3Middle scale machines having no particular base (typically electric motors of 15 kW to 75 kW) and engines or machines (300 kW maximum) mounted on a rigid base.Class 4Zone ALarge scale generating machinery or rotating machines mounted on a comparatively soft rigid base (for example, turbo generator sets and gas turbines of output of 10 MW minimum).Vibration zone including vibration values of a new installed machine (Good) Zone B Vibration zone in which a machine can run long without any limitation (Acceptable) Zone C Vibration zone in which a machine cannot be expected to run long (Unsatisfactory) Zone D Vibration zone in which a machine may be damaged (Unacceptable)External View Output TerminalFunction SwitchBattery Alarm Digital IndicatorZero AdjustUnit: mmStandard type Has a standard measuring range. Best suitable for general, universal measurement.Large input type Provides the acceleration and velocity measuring ranges of 10 times those for the Standard type. Best suitable for a large vibration measurement.High resolution type Has the resolution of 10 times the one for the Standard type. Best suitable for micro vibration measurement.Lightweight sensor type Uses a small lightweight type sensor weighing 1.3 g. Best suitable for vibration measurement of small objects.1332BModelAcceleration measuring rangeVelocity measuring rangeDisplacement measuring rangeFrequency rangeTemperature range AC output Power supply Dimensi*** & mass (main unit) SensorSensor: -20°C to +110°C; Amplifier: -10°C to +50°C ±2V (full scale) 006P (9V), 1 pc, continuously operable for 30 hours or more 75 (W) x 130 (H) x 24 (D) mm Approx. 230 g MODEL-2304A MODEL-2304A MODEL-2369 MODEL-2302BHi (Peak) Lo (Peak) Hi (RMS) Lo (RMS) Hi (P-P) Lo (P-P) Acceleration Velocity Displacement Acceleration Velocity Displacement0.1 to 199.9 m/s2 0.01 to 19.99 m/s2 0.1 to 199.9 mm/s 0.01 to 19.99 mm/s 0.01 to 19.99 mm 0.001 to 1.999 mm1332B-01H 1 to 1999 m/s2 0.1 to 199.9 m/s2 1 to 1999 mm/s 0.1 to 199.9 mm/s 0.01 to 19.99 mm 0.001 to 1.999 mm1332B-01L 0.01 to 19.99 m/s2 0.001 to 1.999 m/s2 0.01 to 19.99 mm/s 0.001 to 1.999 mm/s 1 to 1999 Pm 0.1 to 199.9 Pm1332B-00F5 to 5,000 Hz (±1 dB), 5 to 10,000 Hz (±3 dB) 10 to 1,000 Hz (complies with ISO 2954 - Requirements for instruments for measuring vibration severity) 10 to 1,000 Hz (±1 dB) 5 to 5,000 Hz (±1dB)0.1 to 199.9 m/s2 0.01 to 19.99 m/s2 0.1 to 199.9 mm/s 0.01 to 19.99 mm/s 0.01 to 19.99 mm 0.001 to 1.999 mm 5 o 1,000 Hz (±3dB) 10 to 1,000 Hz (±3dB) 10 to 1,000 Hz (±3dB)±3%±1 digit ±5%±1 digit ±5%±1 digitMeasurement accuracy 80Hz 20±5°C 1/2FSAppearance of SensorsNote: Upper-limit frequencies for velocity and displacement are limited by the acceleration.Note: VIBRO Recorder MODEL-9801 alone cannot be sold.Configuration of DIGI-VIBRO MODEL-1332B Standard typeOpti***z Main unit, MODEL-1332B, 1 pc z L contact pin, LC-90, 1 pc z Shoulder case, 1 pc z Piezoelectric acceleration sensor, MODEL-2304A, 1 pcz Magnet, MG-1, 1 pc z Operation manual, 1 copy z Low noise cable (1.5 m), LNC-3F-1.5, 1 pc z 006P (9V), 1 pcVIBRO Recorder set MODEL-1332B-R Recorder opti***Output cable 3.5I, BNC type (1.5 m) MODEL-9803-97DIGI-VIBRO MODEL-1332BVIBRO Recorder MODEL-9801CF card, 256MB MODEL-9803-72Portable case MODEL-9782Soft case MODEL-9871Battery pack MODEL-9780Low noise cable (3 m) LNC-3F-3 Low noise cable (5 m) LNC-3F-5 Low noise cable (10 m) LNC-3F-10Curled cable LNC-3F-CCMagnet (for curved surface mounting) MG-3AOutput cable 3.5I, cuttable type (1 m) CA-1311-1Output cable 3.5I, BNC type (1.5 m) MODEL-9803-97Small size magnet. Mountable on a curved surface.S contact pin SC-10Higher resonance point than Standard* Specificati*** and designs presented in the product catalog are subject to change without notice for product improvement pur***es.