High and low temperature alternating test box common trouble and elimination method

High and low temperature alternating test box common faults and troubleshooting methods High and low temperature alternating test box is suitable for military and aerospace units, its maintenance is the highest equipment in environmental testing equipment. According to the author's many years of experience, some common failures and troubleshooting methods for high and low temperature alternating test chambers have been summarized.

High-low temperature alternating test chamber In the high temperature test, if the temperature does not reach the test temperature value, the electrical system can be checked and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to look at the air circulation system and see if the adjustment baffle of the air circulation is normal. Low temperature does not reach the test index Observed temperature changes, is the temperature drop is very slow, or the temperature rose to a certain value after the temperature has a tendency to rise, the former must check, do low temperature test before the studio drying, so that the work After the chamber is kept dry, the test sample is put into the work chamber and tested again. The test sample in the work chamber is placed too much, so that the wind in the work chamber cannot be fully circulated.

If it is not a similar situation, you can ask a professional manufacturer - special repair. In the heat and humidity test of high and low temperature alternating test chambers, the actual humidity will reach 10 or the actual humidity and 0% target humidity will differ greatly, and the value will be much lower. It may be caused by the drying of the gauze on the wet-bulb sensor. Check the wet-bulb sensor for water shortage. The water level in the water tank is automatically controlled by a water level controller. Check whether the water level controller water supply system is normal and whether the water level controller works normally. You can change a wet ball gauze or try again with purified water. Or ask a professional electrician to overhaul the circuit control system. In addition to the correct operation of the test personnel according to operating procedures, it should also understand its structure. The thermal shock tester consists of a box, an air circulation system, a refrigeration system, a heating system, and a humidity control system. Another cause of temperature shock test chamber failure may also be due to poor ambient temperature, manufacturers recommend the best temperature of 5-28 degrees (average temperature of 24 hours at 24 degrees), humidity can be about 95%, any precision instruments are Need to have a good place to plant to ensure that the instrument to play the best effect. Ensure the product's service life. This maintenance tips should be known to any laboratory manager or machine operator.

Dongguan City Tesite Detection Instrument Co., Ltd. specializes in the production and sale of high and low temperature alternating test box, welcome to consult the high and low temperature alternating test box prices, provide high and low temperature alternating test box procedures, high and low temperature alternating test box maintenance.

Fiber Coupled LED

375nm to 940nm Multimode wavelength LED are designed for microscopy and other applications that require multiple color channels.The LED current of each channel can be adjusted independently or modulated via an external voltage.The multi-wavelength LED system offer a compact housing with a backlit, easy-to-read LCD display. They are operated via the buttons on the front panel.

Features
â–  UV, Visible, and NIR Versions (from 375nm to 1550nm)
â–  The SMA connector is ideal for multimode fiber.
â–  Multi-wavelength fiber coupled LED available.
fiber coupled LED
fiber coupled system


Data Sheet for Single Wavelength LED

Model Color

Nominal Wavelength (nm)

Bandwidth FWHM (nm) Typical Φ600um Core Fiber Output Power SMA (mW) Maximum Current CW (mA) Forward Voltage (V) Typical Lifetime (h)
LFM375

UV

375 9 3.0 1400 3.6 ~10000
LFM395 UV 395 16 1.0 500 4.5 ~10000
LFM405 UV 405 12 4.2 1400 3.45 ~10000
LFM430 Violet 430 15 1.0 500 3.8 ~10000
LFM460 Royal Blue 460 25 6.0 1000 3.6 ~10000
LFM470 Blue 470 25 3.2 1000 3.2 ~10000
LFM500 Cyan 500 30 2.2 1000 3.3 ~10000
LFM530 Green 530 33 3.0 1000 3.2 ~10000
LFM565 Lime 565 104 3.0 1000 3.1 ~10000
LFM600 Amber 600 15 1.2 1000 2.6 ~10000
LFM620 Red 620 18 5.5 1000 2.2 ~10000
LFM625 Red 625 17 3.0 1000 2.2 ~10000
LFM660 Deep Red 660 20 4.0 1200 2.6 ~10000
LFM730 Far Red 730 37 1.5 1000 2.3 ~10000
LFM808 IR 808 25 2.5 500 3.6 ~10000
LFM850 IR 850 30 3.0 1500 3.85 ~10000
LFM880 IR 880 50 1.0 1000 1.7 ~10000
LFM940 IR 940 37 3.0 1000 2.75 ~10000
LFM1050 IR 1050 37 2.0 600 1.4 ~10000
LFM1550 IR 1550 102 1.0 700 1.1 ~10000

Note:

1. The above testing data are only for reference, the actual spectrum of LED may change since the temperature or other parameters are different when operating the current.

2.The above data was tested by 600μm core diameter, 0.22 NA multimode fibers. Other core diameter fibers are available on request.

Laser Head Power Supply
LED
leds

64 (L) ×46.5 (W) ×30 (H) mm3

114 (L) ×78 (W) ×71 (H) mm3


Data Sheet for Multi-wavelength LED


Parameters Indicators
Available wavelength (nm) 375-940
Output mode Fiber output
Fiber core diameter (μm) 400, 600, 800, 1000
Fiber connector SMA905
Output power (mW) Related to fiber
Power stability (rms, over 4 hours) <3%, <5%
Operating mode CW, TTL or Analog on request
Operating temperature (°C) 10~35
Dimensions
192(L)*241(w)*139.9(H)mm3
Input power
12VDC 7A
Cooling method
By air
Storage temperature (°C)
-20~80
Lifetime (hours)
10000


Fiber Specs
fiber
fiber connector



Fiber Coupled Led,Fiber Coupled Blue Led,Fiber Coupled Led 1550,Single Mode Fiber Coupled Led

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