The ZCWDT-19 intelligent multi-point temperature and humidity inspection instrument fully meets the requirements of technical standards and calibration specifications such as JJF 1101-2019 Environmental Testing Equipment Temperature and Humidity Calibration Specification, JJF1030-2010 Constant Temperature Bath Testing Specification, GB9452-88, JB/T5502-91, etc. It also fully considers the convenience and practicality of testing personnel's actual operation. The "Smart Multi point Temperature and Humidity Tester" will provide advanced and reliable modern testing, analysis, and management methods for production, scientific research, and metrology fields.

一、 Main technical characteristics

Host technical parameters：

1. Single module: 9 channels for thermocouples and thermal resistors, 4 channels for humidity sensors, and 1 channel for cold end compensation; (Can expand modules according to needs);

2. Thermocouple resolution: 0.001 ℃;

3. Thermal resistance resolution: 0.001 ℃;

4. Measurement accuracy: ± 0.05%;

5. The system can use multiple temperature measuring elements: thermocouples: S, R, B, K, N, E, J, T; Thermal resistance: Pt100, pt10 can be selected according to the temperature measuring element.

6. External cold end compensation treatment: The temperature and humidity field automatic testing system adopts an external four wire PT100 with an accuracy of better than 0.2 ℃ as the cold end compensation for the thermocouple measurement channel.

7. Communication methods: Ethernet, WIFI, 4G, RS485

8. Equipped with GPS function, the instrument can quickly pick up information such as unit name, instrument name, manufacturer, calibration date, etc. based on GPS longitude and latitude coordinates. 

9.4G transmission function can transfer measurement data to the cloud and transmit it in real-time to the PC for display and analysis of work, and generate certificates and original records.

10. Power supply method: Built in large capacity lithium battery with a standby time of 12 hours;

11. The instrument comes with environmental temperature, humidity, and atmospheric pressure measurement, which can display the current environmental temperature, humidity, and atmospheric pressure in real time;

12. External dimensions: 192 mm x 136 mm x 45mm

Sensor technical parameters：

1. Temperature measurement platinum resistance specifications: Pt100, Class A, measuring wire 5m, temperature measurement range: -60 ℃ to 300 ℃.

2. Temperature measurement thermocouple specifications: armored, K-type φ Level 3: Grade I, temperature resistance of 1100 ℃, L=3m, lead wire 2m (temperature range, diameter, length can be customized)

3. Humidity sensor specifications:

4.1 Accuracy: ± 0.8% RH, ± 0.1 ℃ (20 ℃)

5.2 Measurement range: 0~100% RH, -50 ℃~200 ℃

6.3 Probe: PPS, φ 15mm

7.4 Cable: 5m, temperature resistant -50 ℃ to 200 ℃

characteristic：   

1. The data collector adopts a 7.0-inch LCD touch screen, and uses a capacitive touch screen to achieve its configuration and real-time data display (including temperature, curve, and test result display mode switching).
2. There is no need for a matching PC at the work site. The multi-channel data collector can independently complete the data collection and storage work, and transmit the test data to the cloud in real-time and to the PC for display and analysis, and generate certificates and original records.
3. A host can simultaneously support the combination measurement of 2 modules to achieve 18 thermistors and thermocouples, as well as 8 humidity sensors, almost meeting most application scenarios (calibration of multiple cabinets can be performed simultaneously, saving valuable on-site detection time).

4.A host can collect data from 5 modules separately, and can calibrate multiple boxes simultaneously, saving valuable on-site testing time.

5. The sensor connection method adopts a push-pull aviation socket connection, with a contact resistance less than 0.005 Ω, which is simple, fast, and ensures the reliability and performance indicators of the system connection

6.Special specifications of sensors are optional. The company can provide various special specifications of temperature sensors to meet the needs of different occasions。

7.PC software can display real-time temperature and humidity curves for each channel (thermocouple, thermistor). Different channel curves are represented by different colored curves, and the color of the curves can be modified at any time to intuitively reflect the temperature and humidity fluctuations of the tested object. And record the measured data, which can be exported to Excel as needed at any time, and queried and printed at any time。

8.The system meets the technical requirements of the national calibration standard JJF1101-2019. Automatically calculate temperature and humidity deviation, uniformity, and fluctuation, generate original records that meet the requirements of national laboratory accreditation. The software provides templates and interfaces for modifying original records, verification/calibration certificates, and facilitates modification. Automatically perform reference end compensation and sensor calibration data correction。