YD420 Dual Channel Vibration Monitoring Instrument
Brief Introduction
Main Function
2.1 With two channels, each channel can measure and display vibration amplitude.
2.2 With alarm protection function, when vibration amplitude exceed alarm set value, the alarm indicator light will on, and meanwhile output on/off signal at the rear of the panel to protect the monitored equipment.
2.3 User can arbitrarily set by pushing any buttons in the front of the panel if two level alarm setting value is in the measuring range.
2.4 With current output and RS485 interfaces which can connect with computers and other devices.
Technical Parameters
3.1.1 Signal Input: YD9800 eddy current sensor
3.1.2 Measurement range: 0~200um Range can be determined according to users’needs
3.1.3 Accuracy: Linearity deviation ≤ ± 1% (full scale)
3.1.4 Display: 3 digits digital tube display
3.1.5 Frequency Response: 0~5000Hz
3.1.6 Current output: 4 ~ 20mA (can be adjusted according to users' requirements to 0 ~ 10mA)
3.1.7 Communication Interface: RS485
3.1.8 Alarm Contact Capacity: DC28V 3A
3.1.9 Working Environment: Temperature: -30 °C ~ 50 °C Relative humidity: ≤ 85%
3.1.10 Power Supply: AC 220VAC ± 30% 50Hz Power ≤ 20W
3.1.11 Dimensions: 80 × 160 × 150mm (H × W × L)
3.1.12 Hole Size: 76 × 152 (H × W) 3.2 YD9200 Eddy Current Sensor
3.2.1 Probe Diameter: φ8mm
3.2.2 Linear Range: 2mm
3.2.3 Sensitivity: 8V/mm
3.2.4 Linearity: 2%
3.2.5 Frequency Response: 0~5KHZ
3.2.6 Probe Length: 55mm etc.
3.2.7 Mounting Thread: M10×1mm
3.2.8 Working Temperature: Probe:30°C~120°C Proximiator 30°C~60°C
3.2.9 Power Supply: -24VDC
3.2.10 Dimensions: 83×61×49mm ( L × W × H )
Key Instruction
4.1 “” key: this is called "shift" key, press the button each time, the selected LED will move to left for one digit, selected digital tube flashes, cyclic shift.
4.2 "" key: this is called "add" button, number on the selected digital tube will increased by 1 for every press.
4.3"E" key: this is called "Confirm" button, press the key after finishing parameter settings Instrument enter into normal measurement state once storage parameters.
4.4 "S" key: this is called "Settings" button, press the button, and enter to the parameter setting state, setting alarm 1 value and alarm 2 value of channel 1 and channel 2 successively. Press the "S" button, the upper digital tube will circulating display “COL”,“COH”,“C1L”,“C1H”,“PPP” in turn, respectively indicate channel 1 alarm 1 value, "channel 1 alarm 2 value, channel 2 alarm 1 value, channel 2 alarm 2 value.
