The DTSL-2N oversized temperature and humidity verification box is a special verification device for detecting hair temperature and humidity meters (meters), wet and dry bulb thermometers, digital temperature and humidity meters, and other various temperature and humidity sensors. The equipment is accurately measured by a temperature and humidity sensor and controlled by an industrial programmable controller, which can automatically adjust the humidity in the temperature and humidity verification box. With high control and test accuracy, it can provide continuous and repeatable humidity measurement, suitable for scientific research and product testing.
○ Excellent technology
Humidity control adopts the shunt method humidity generation principle. Compared with the dual temperature method humidity generation principle, the time required for stability is greatly shortened and the verification efficiency is improved.
Temperature control adopts liquid bath constant temperature and other plate heating technology, liquid medium heat radiation, the temperature is more constant, and the temperature field is more uniform.
The unique air circuit circulation design inside the measurement cavity ensures that there is no dead angle air flow; the frequency conversion technology is used to adjust the speed of the fan to ensure that the internal temperature field is even at low speed;
○ Product intelligence
Integration of measurement technology and internet of things technology, wifi remote control, make measurement easier.
High-definition touch screen control, multi-touch, greatly improve the user experience.
One-key start, fully automatic control, shorten the training period of measurement personnel.
Timing switch machine, remote switch machine, save time and improve verification efficiency.
○ Excellent quality
The outer shell adopts thick plate phosphating, passivation, spray plastic, anti-corrosion, anti-rust, salt spray resistance.
○ Liner adopts SUS304
High-precision sensor, using imported high-precision platinum resistance, Rotronic humidity sensor for temperature and humidity control.
○ Can be upgraded to an automatic verification system
With the combination of intelligent image acquisition robot, dew point meter and industrial control computer, it can be upgraded to an automatic verification system of intelligent temperature and humidity meter, which realizes the verification process automation, automatic record saving and report generation. It frees the measurement personnel from the reading and recording of the temperature and humidity meter, greatly improving the verification efficiency and reducing the labor cost.
○ HD touch screen
Using high-resolution capacitive screen, the display is clearer, multi-touch support, in line with customer mobile phone touch operation habits.
○ Wifi control
Mobile phone / pad remotely set the temperature and humidity, start and stop the device, read the current temperature and humidity values and fluctuations and other device status.
○ Status prompt
Real-time calculation and display of temperature and humidity fluctuations, prompt to reach a stable state, U disk insertion detection, wifi connection prompt.
○ Curve display
Real-time display of temperature and humidity curve, support touch zoom and pan operation, one-key screenshot to save the curve to U disk.
○ Data record
The temperature and humidity data are automatically saved in xls format and exported to a USB flash drive with one click.
○ Timed start
The system has the function of timing start-up, which can realize the equipment start-up before work, and start working immediately after work without waiting.
○ Multi-point calibration
Supports multi-point calibration of temperature and humidity sensors, and can perform multi-point corrections on temperature sensor indications to ensure consistency with the standard.
○ Segment control
The temperature and humidity are controlled by a segmented PID, which is fast and stable, and "zero" overshoot. The rapid and stable humidity rise from 40% RH to 60% RH takes only 15 minutes.
○ Fan speed regulation
The main circulation fan of the inner cavity adopts frequency conversion speed control, and the fan speed can be set through the touch screen.
○ Multiple protection alarm
Constant temperature tank overheating protection, liquid level alarm; reminder of water shortage in replenishing tank; compressor overheating alarm, start-stop protection function.
○ Communication extension
Equipped with network port, wifi interface, USB interface, RS-232 interface, can communicate with PC to realize data reading and system setting.
|Temperature fluctuation||≤±0.1℃（＠15℃、＠20℃、＠30℃）Special indicators can be customized|
|Temperature uniformity||≤0.25℃（＠15℃、＠20℃、＠30℃）Special indicators can be customized|
|Humidity fluctuation||≤±0.6%RH（20℃）||≤±0.8%RH （20℃）Special indicators can be customized|
|Humidity uniformity||Low humidity ≤0.8 %RH（20℃）|
High humidity ≤1.0 %RH（20℃）
|Main features||Intelligent programming function||With multi-segment programming function, common temperature and humidity calibration points can be programmed into the verification box in advance, and can be started with one key (timed start), which is automatically executed in sequence; there is no need to repeatedly set the temperature and humidity points every time. For example: Common calibration points (required by JJG205) 15 ℃, 40% H (20 ℃), 60% H (20 ℃), 80% H (20 ℃), 30 ℃ only need to be set in advance, and then you can follow the setting Value, calibrated in sequence, without setting temperature and humidity every time.|
|Mobile phone control function (WiFi control)|
Equipped with mobile phone APP software, you can remotely control the temperature and humidity verification through the mobile phone; read the current temperature and humidity values and the running status of the verification box in real time; you can set the temperature and humidity values remotely; remotely start and stop the temperature and humidity verification box; personnel do not need to stare at the verification box to check the status ; In the process of stabilizing the verification box, you can also do other work, as long as you need to look at the mobile phone remotely, liberating the measurement personnel and improving the measurement work efficiency.
|PC remote function (network port / WiFi / serial port)|
Equipped with computer software (optional), you can remotely control the temperature and humidity verification through the computer; read the current temperature and humidity values and the running status of the test box in real time; you can set the temperature and humidity values remotely; start and stop the temperature and humidity test box remotely; the measurement teacher does not need to stare Check the box, check the status; in the process of stabilizing the check box, you can also do other work. You only need to look at the computer screen remotely, liberating the measurement staff and improving the efficiency of the measurement work.
|Volatility automatic calculation|
1. With automatic real-time calculation of fluctuation degree, it can automatically calculate the fluctuation of the current temperature and humidity of the temperature and humidity verification box, determine whether the verification box is stable, and can start the measurement and calibration work.
With intelligent stability prompt function, you can automatically judge whether the test box is stable according to the parameters such as temperature and humidity deviation, fluctuation, and stability time of the test box. After stabilization, a green prompt "temperature and humidity has stabilized" appears on the screen as a reference for the measurement teacher to start reading To improve the efficiency of verification.。
The verification box will perform automatic anti-rust maintenance on the internal proportional valves, atomizers and other parts of the equipment according to the internal logic to reach the maintenance cycle and spare parts replacement cycle.
|Curve zoom function (save curve)|
Touch screen, support multi-touch, you can use two fingers to drag and zoom to view partial and overall curve details (same way as mobile phone zoom picture); curve supports one-click screenshot, save curve data into picture format, as maintenance, data process records.
|Segmented PID control|
The temperature is controlled by multi-stage PID, and the temperature control effect is better (small overshoot, rapid adjustment, and small fluctuation), and the humidity is controlled by multi-stage PID, which has good control effect.
|Data logging / export (USB)|
Insert the U disk, you can automatically record the operating data of the verification box, temperature and humidity curve data, form an EXCEL table, and export to the U disk with one click.
|Curve display||High speed sampling smooth curve|
Compressor start-stop, overheat protection (over-temperature protection), anti-drying protection, low liquid level reminder to add water reminder, automatic fluid replenishment can have multiple protection functions
|Multi-point correction||Wide range of correction points, smaller deviation and good linearity|
|Equipped with frequency conversion fan, regular start-up function, and can be upgraded to an automatic temperature and humidity verification system.|
|Studio internal dimensions||820㎜×800㎜×510㎜||820㎜×800㎜×510㎜|
|Sensors for control||Precision platinum resistance temperature sensor, Potronic temperature and humidity sensor|
|Display||7 inch HD touch screen|
|Temperature control method||Liquid bath constant temperature isothermal plate heating technology|
|Humidity control||Shunt humidity generation|
|Observation window / operation hole||3 observation windows, 2 operation holes|
|Cabinet composition||Shell||Pickling spray|
|Seal||Medical grade silicone|
|Glass||3C certified 5-layer vacuum high permeability tempered glass|
|Alarm prompt||Real-time display of fluctuation degree, stable state prompt, lack of prompt, low liquid level prompt, medium overheat protection, compressor overheat protection|
|Power supply and power||AC220V ± 5% 50Hz peak power 5KW typical power 3KW|
Standard selection table of temperature and humidity verification box:
|Standard ventilation dry and wet table||DTBG||5~100℃||0.01℃||±0.1℃|
|Precision dew point meter||Optidew 401||-40~90℃||0.01℃||Temperature: ±0.1℃ |
Dew point: ±0.15℃
|Previous:DTSL Pro intelligent temperature and humidity meter automatic verification system||next:DTLH-1 Low humidity intelligent temperature and humidity standard box|
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