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Temperature And Humidity Testing Machine


Temperature and humidity testing is the umbrella term for different environmental tests such as high temperature testing, temperature cycling testing or moisture resistance testing.

PRODUCT SPECIFICATION

Nominal internal volume 50L
Heating time +20℃→+150℃ Nonlinear load under rise temperature of about 45 minutes, about 3 DEG /min
Cooling time +20℃→-40℃ Under no load, the nonlinear cooling is about 60 minutes, about 1 /min
Load condition No load
Humidity range 20%~98%R.H.
Moisture fluctuation +/- 2.5%R.H.
Humidity deviation >75%RH (+2,-3%RH), <75%RH (±5%RH)
Weight About 300 kg
Temperature range -40&#8451;&#8594;+150&#8451; (Can be arbitrarily set)
Temperature fluctuation &#8804; +/- 0.5&#8451;
Temperature deviation &#8804; +/- 2.0&#8451;
Metrology specification Measure SENSOR placement point, within the size of the inner wall 1/10
Heating time +20&#8451;&#8594;+150&#8451; Nonlinear load under rise temperature of about 45 minutes, about 3 DEG /min
Cooling time +20&#8451;&#8594;-40&#8451; Under no load, the nonlinear cooling is about 60 minutes, about 1 /min
Structure 1. Outer wall material: steel plate baking finish<br>2. Inner wall material: stainless steel plate SUS No. 304<br>3. The box insulation material: high temperature resistant rigid polyurethane foam<br>4. Box door insulation material: high temperature resistant rigid polyurethane foam
Distribution control cabinet Distribution board, cooling fan and total power switch device The design of electric control refers to the code for design of low voltage distribution, GB50054-95, code for power supply and distribution design, GB50052, code for construction and acceptance of grounding device for installation of electrical equipment, GB50169-92, so as to standardize the design of electric control
Radiator for condenser Europe and the United States high efficiency power-saving ultra low temperature refrigeration system (air-cooled heat dissipation mode)
Heating load regulation 1. The computer automatically adjusts the cold coal flow rate, effectively carries away the heating load of the tested product and the German / Japanese technology Simultaneous operation<br> 2. Compared with the traditional design, control stability and reproducibility and high saving power and low humidity super efficiency.
High efficiency components 1. AC&R compound disturbing flow type aluminum fin device for condenser and evaporator <br> 2. Throttle devices are imported refrigeration parts.
Expansion system Capacity automatic control, throttling,step-down refrigeration system, the use of multi loop control, for different temperatures using different automatic expansion valve to control refrigerant flow, so as to achieve accurate temperature control, reduce energy consumption.
Evaporator Fin type multi stage automatic load capacity adjustment
Cryogen DuPont R404a+R23R (ozone depletion index is 0), effectively protect the atmosphere bromine gas content.
Controller TEMI990 control
Heater Fin type heat pipe type heater, nickel chromium alloy U, the automatic calculation of high precision PID+SSR control (routing cycle: 1 ~ 4S can be set), the heat loss and heating amount, so saving about 10% than traditional ON/OFF control
Humidifier UL type stainless steel plating heater, the automatic calculation of high precision PID+SSR control of saturated steam humidification system is safe and efficient (calculus cycle: 1 ~ 4S can be set), the heat loss and heating amount, so saving about 10% than traditional ON/OFF control

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Features of the LD 2131 Programmable Constant Temperature And Humidity Testing Machine:-

  • The utility model is mainly used for manufacturing and maintaining the constant temperature and humidity space, and the constant temperature and humidity device can automatically control the refrigeration, the heating, the dehumidification, the humidifying and the supplementary humidifying water, etc.. Its working principle is the use of balance temperature regulation and humidity control system (BTHC), P.I.D. way to control the SSR, so that the system heating humidification amount equal to damp heat loss, so it can be of long-term stable use.
  • Taiwan produced constant temperature and humidity box, high temperature resistant stainless steel long axis motor. 60W, multi wing type wind wheel, large air flow, small noise.
  • The heater, the evaporator, the pressure balance mouth, the adjustable lower wind deflector and the temperature sensor are all top of the line.
  • The use of imported 7 inch color LCD touch screen microcomputer monitor direct button type, wide angle of view in English said, can also control the temperature of high contrast function, with 1200 groups of 12000 times the memory program, each section of 999Hour59Min, can be arbitrarily divided and set, with multiple sets of PID control function.
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