Yaxing Cement standard maintenance box is of high quality, cement ç ¼ constant temperature and humidity maintenance box price concessions, concrete maintenance box service is perfect for all construction sites and scientific research, quality inspection departments for cement, concrete samples for strength, stereo setting time standard Maintenance work.
HBY-40B cement concrete constant temperature and humidity maintenance box and cement standard maintenance box are designed and manufactured according to the standard maintenance requirements of concrete test pieces of national construction industry industry JG3037-1996. It is applicable to the standard maintenance work of strength and setting condensation time of cement and concrete samples by various construction sites and scientific research and quality inspection departments.
Cement Standard Maintenance Box Operation Guide Cement ç ¼ Constant Temperature and Humidity Maintenance Box Instructions Use advanced intelligent temperature and humidity control system to accurately command heating, cooling and humidification. Fully automatic switching work to achieve dynamic balance of temperature and humidity in the tank, thereby improving the accuracy and automation control level of the standard curing conditions, reducing the energy consumption, replacing the existing low-grade standard maintenance boxes and self-built enterprises. Non-standard maintenance room, standard environment for condition adjustment and test of test pieces.
Cement standard curing box operation guide cement ç ¼ constant temperature and humidity maintenance box use instructions main technical parameters
Temperature control accuracy ±1°C Temperature measurement accuracy ±0.5°C Temperature inside the box 20°C
Heating power 500W temperature difference <±1°C
Machine noise <65dB Operating voltage 220V±10%
Control humidity accuracy ±1%RH Relative humidity≥92RH
Humidity measurement ±3%RH Frequency 50HZ
Compressor power 136W temperature and humidity sensor Pt100A level
Volume: 20B type 600*500*960mm (20 sets of cement test block)
40B type 600*500*1180mm (40 sets of cement test block)
60B type 580*1200*1400mm (ç ¼ test block 18 groups)
Working principle of high quality cement standard curing box
This instrument uses a precision platinum resistance Pt100 as a temperature sensing element, which is transmitted by a multi-way switch by a high-performance (A/D) converter. The temperature and humidity equivalent voltage signals are converted into corresponding digital signals, which are then processed and displayed by a single microprocessor. When the temperature is lower than the lower limit of the set temperature control value, the meter outputs a heating control signal. When the temperature is higher than the upper limit of the set temperature control value, the meter outputs a cooling control signal, and when the temperature enters the window area of ​​the set control value (CER When setting the area), the meter stops heating or cooling and enters the constant temperature state. When the humidity is lower than the upper limit of the set humidity control value, the meter outputs a humidification signal. When the humidity is higher than the lower limit of the set humidity control value, the humidification stops.
Price concessions cement ç ¼ constant temperature and humidity maintenance box instructions
1. The instrument should be placed in a ventilated and dry place at an ambient temperature of 2~38 °C, relative humidity of not more than 85%, and indoor use without strong vibration and strong electromagnetic fields.
2. After the instrument is placed in a stable position, check whether the door switch is flexible and whether the electrical, cooling and other components are damaged.
3. Add water to the water tank in the box to the bottom of the shelf. 2cm above the electric heating tube, open the side door to fill the humidifier tank with distilled water, and fill the plastic ball inside the temperature measuring wet box with water and gauze. Soak in water.
4. Insert the power plug into the 220V socket with good grounding. Press the power switch and the instrument will automatically enter the working state.
5. When the factory is shipped, the instrument has been programmed into the standard setting program. The temperature control value is 20.0°C±1.0°C, and the humidity control value is 95%±1.5%. There is no special requirement, and the control program cannot be changed. Otherwise, temperature control may occur. The humidity control is beyond the technical scope. If it is necessary to change the control value data, the program can be modified according to the temperature controller manual.
Five, instrument working parameters (factory standard program settings)
1. Temperature control value 20.0 °C 2. Temperature control upper limit (based on control value) +1 °C
3, humidity control value 95% 4, temperature control lower limit (based on the control value) -0.5 ° C
5, the upper limit of humidity control (based on the control value) 1%
6, the lower limit of humidity control (based on the control value) 1%
Sixth, test machine test
Whether the chiller humidifier can work, the head of the dry temperature sensor can be artificially warmed to a temperature higher than the set temperature by 10~15 °C, so that the difference between the dry and the wet temperature is increased, and the chiller and the humidifier start working.
Seven, matters needing attention
1. If the power supply voltage fluctuates beyond the specified range of use, the power supply regulator must be installed, otherwise the instrument and the refrigerator will be damaged.
2, the power supply grounding must be reliable, poor grounding will bring danger to your personal safety.
3. Always check the humidifier and water tank. Do not cut off the water in the dry and wet box. The gauze in the box should be replaced every month.
4. Non-related personnel cannot change the control program data without authorization, so as to avoid the instrument losing control and damage the instrument.
Eight, general troubleshooting
1. The whole machine does not work: Check the power switch and the fuse is damaged.
2, not cooling: check whether the meter shows the cooling state, check the compressor overload protector, the starter is damaged, the compressor can run normally without cooling, it may be refrigerant leakage.
3. The humidifier is not humidified: check whether the small fan in the humidifier works, whether the water level in the humidifier base is too high, whether the humidifier is tilted too much, and whether the atomizing transducer is clean.
4. The temperature difference inside the box is large: check whether the fan works, the cooling indicator light is on and the fan is not working, then the fan is damaged or the fuse is broken.
5, occasionally affected by external electrical signals, the instrument appears digital control out of control, just turn off the power switch or unplug the power plug, and then restart, it can work normally.
Nine, packing list
1 host, 1 shelf, 1 fuse, 1 gauze, 1 manual, 1 certificate.
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