Mobile seismometer

LD-T2Mobile seismometerBearing condition analysis and infrared temperature

(hereinafter referred to asLD-T2）It is a handheld machine state detection instrument based on microprocessors, with functions of vibration measurement and evaluation, bearing state detection and evaluation. Flow vibration detection, bearing status analysis, and infrared temperature measurement, accurate measurement speed ≥1.5m/s,save Storage temperature-10℃~60℃,Used for vibration detection, bearing condition analysis, infrared temperature measurement, and emergency disaster relief.

The complete configuration includes the following components

●LD-T2Host (with built-in lithium battery)

● Acceleration sensor and integrated elastic cable, approximately in length 2 rice

● Sensor magnetic seat

● Battery charging cable and charger

● User Manual ● Warranty Card

● Instrument box

Vibration measurement and evaluation

LD-T2The flow seismometer can measure the single peak value of vibration acceleration（m/s2 P）Effective speed value（mm/s RMS）Peak to peak displacement values（um P-P）. When maintaining vibration speed When measuring, you can follow the built-inISO10816-3The machine vibration standard automatically determines and indicates the machine alarm status.

Bearing condition detection and evaluation

LD-T2The peak factor of two parameters that can be measured to reflect the state of the bearing（CF）And kurtosis index（KV）The peak factor is the peak value of the time-domain vibration signal

RMSThe ratio between true values, kurtosis index mainly measures the degree to which the amplitude of the vibration signal deviates from the normal distribution. Vibration analysts can utilize peak factor analysis（CF）And kurtosis index（KV）Come for consultation

Bearing failure.

temperature measurement

LD-T2In addition to vibration and bearing status detection functions, it also has non-contact infrared temperature measurement function, mainly used for bearing temperature detection. measurement range-10~℃ 250Use red laser dots to indicate the measurement location.

LD-T2technical indicators

Display: Monochrome graphic LCDLCD，128x64Dot matrix,LEDbacklight

battery Lithium polymer rechargeable batteries,3.6V 1700 mAh

Charging time approximately 3～5 Hours, full for continuous use 12 More than hours

Input 50 mV/g IEPEType accelerometer

Vibration measurement: acceleration 0. 1～1000.0m/s2 Peak value, frequency range 10～5kHz

Effective value of speed 0.1-1500.0mm/s, frequency range 10-11kHz

displacement1~10000um peak to peak, frequency range 10-11kHz

Bearing status:

accelerationCFvalue KVvalue

0. 1～200.0m/s2 Peak value, frequency range1K～15kHzfrequency range1K～15kHz

frequency range1K～15kHz

Vibration accuracy:±5%

alarm Built in ISO10816-3 machine vibration standard evaluation, vibration speed alarm status

Evaluation of bearing alarm status based on experience value criteria for built-in bearing status

Infrared temperature measurement: Temperature measurement range:- 10～250℃

Red laser dots indicate the target

Temperature accuracy: ±2℃

resolution 0.1℃

Distance measurement coefficient 8：1

Ambient temperature -10～60℃

Size: 116mm×79mm×26mm

Weight: 225 Ke, excluding sensors and cables

LD-T2Multi functional vibration and bearing condition detector for bearing condition evaluation

Peak factor（CF）And kurtosis index（KV）The peak factor is the peak value of the time-domain vibration signalRMSThe ratio between true values.

When the rolling elements move inside the bearing, broadband noise and vibration are generated. If the bearing is lubricated or damaged due to misalignment, surface damage, etc The load will generate greater noise and vibration. Vibration itself contains multiple frequencies, and some frequency ranges can be selected to measure the bearing state. If the frequency bandwidth also includes low-frequency components, the bearing state value not only includes the bearing frequency but also low-frequency vibration components caused by imbalance and misalignment, making the bearing state value difficult to explain. If the selected frequency bandwidth only includes the bearing frequency, the bearing status value will be a good indicator.

High frequency components can also occur in the contact between gearboxes and steel structural components without bearing faults, and their frequencies are within the same range as the frequency range of bearing faults. Therefore, it is generally not possible to determine the replacement of bearings based solely on the bearing status values. High bearing status values require further analysis, involving spectrum analysis and identification of bearing fault frequencies.

The lubrication condition of the bearing also affects the state value of the bearing. If a high value is found, the bearing should be oiled. After oiling, the state value of the bearing will generally decrease, but if the bearing is damaged, the value will soon rise again.

This productLD-T2Widely used in industrial and mining enterprises, power plants, cement, chemical, energy, building materials, metallurgy, steel, mechanical processing and other industries, it is also widely used in the promotion of management equipment in departments. It is a recommended product for seismic instruments in disaster reduction and relief equipment,LD-T2Multi functional vibration and bearing condition detector, also known as a seismometer, is used for vibration detection, bearing condition analysis, and infrared temperature measurement; Large screen intuitive Display measurement values and status, capable of measuring acceleration, velocity, and displacement; Auto Switch Vibration frequency characteristics.