New product of U85 micro laser distance sensors use highly focused class 2 laser to detect objects or measure distances, and can return a measured value via varieties intface( serial, usb, rs232, rs485, bluetooth etc.). The electronic distance sensor is a very small Laser Distance Sensor, but high resolution up to 1mm and long distance measuring sensor - teachable measuring range of up to 30m. Extremely accurate distance sensing sensors, errors down to ± 1mm. And the mini sensors and measurements support continuous measurement function, great for compact solutions(eg: robots) with the smallest Laser Distance Sensor of the world!
Parameters of U85:
Accuracy
±1 mm (0.04 inch)
Measuring Unit
mm
Measuring Range (without Reflection)
0.03-20m/0.03-30m
Measuring Time
0.1~3 seconds
Laser Class
Class II
Laser Type
620nm-690nm, <1mW
Size
41*17*7mm (±1 mm)
Weight
About 4g
Voltage
DC2.0~3.3V
Electrical Level
TTL/CMOS
Certifications
CE, FCC, RoHS, FDA
Operating Temperature
0-40 ℃ (32-104 ℉ )
Storage Temperature
-25~60 ℃ (-13~140 ℉)
Mini Laser Distance Sensor,Optical Laser Distance Sensor,Smallest Laser Range Sonsor,Laser Measuring Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com
Freeze dryer 8 major troubleshooting guide
1. Fault phenomenon: The dryer does not run the compressor line. The fuse is blown. The thermal relay operates. The high-voltage switch operates. The compressor is blocked or disconnected. 2. Fault phenomenon: The ambient temperature is too high after the dryer starts. The condenser is clogged? The compressor is overloaded. The refrigerant is low. The low pressure is too low. The intake air is too large. The compressor is stuck. 3. The fault phenomenon: the compressor does not start. The wiring is incorrect. The voltage is too low. The startup capacitor is damaged. The relay or contactor is not closed. The open winding is open. Phase 4. Fault phenomenon: The compressor repeatedly starts and stops the low voltage due to the overload protection action or the three-phase unbalanced overload protector is connected with other electrical equipment. The overload protector malfunctions. The running capacitor is too small. The exhaust pressure is too high. Thermal relay contacts are stuck 5. Fault phenomenon: The relay burnout voltage is too high or too low. The running capacitor is incorrectly started and stopped repeatedly (Refer to 2 and 3). The relay specifications are not correct. The mount is incorrect. 6. Fault phenomenon: The capacitor burnout specification is not The matching voltage is too high. 7. Fault phenomenon: Excessive exhaust pressure. Excessive refrigerant amount. There is air condenser in the refrigeration system. The ambient temperature is too high. The fan pressure is on. The faulty fan motor is faulty. The fan rotates in the wrong direction. The cooling water flow control valve is faulty. 8. Fault phenomenon: the exhaust pressure is too low. The refrigerant dose is too small. The fan pressure switch is faulty.