Introduction and packing list of DHLR-9000B high-precision microcomputer automatic calorimeter

The DHLR-9000B high-precision fully automatic calorimeter is a newly developed instrument by our company. The instrument is connected to a computer and uses TCP network interface protocol. It can simultaneously connect multiple calorimeters, store a large amount of data, and has flexible report design and output formats.

meet the standard

GB/T213-2008 "Method for determination of calorific value of coal"

GB/T384-1981 "Determination of Calorific Value of Petroleum Products"

GB/T30727-2014 "Method for determination of calorific value of solid biomass fuels"

ASTM D5865-2007 Standard Test Method for Gross Calorific Value of Coal and Coke

ISO 1928-2009 "Solid mineral fuels - Determination of total value and calculation of net calorific value using an oxygen bomb calorimeter"

JC/T1005-2006 "Method for determination of calorific value of cement black raw materials"

Main performance characteristics

This instrument can be used to measure the calorific value of solid and liquid combustible substances such as coal, petroleum, explosives, grains, feed, cement, and black raw materials. The main functions of this instrument are as follows:

The entire experimental process adopts Chinese prompts, which are easy to operate, concise, and easy to master.

2. ★ The cooling correction formula can be freely selected (national standard, Swiss standard).

3. Single complete test time: ≤ 15 minutes

4. ★ The calorimeter application software can be run under the Windows 10 operating system, connected to the computer TCP network interface through a router, and can control at least 4 machines to work simultaneously without affecting each other.

5. ★ High degree of automation, automatic detection of ignition wire installation status, automatic quantification of inner cylinder water volume, and automatic completion of the entire testing process..

6. The display of temperature reading, stirring, ignition, testing process and results, as well as the calculation of heat capacity, cylinder heat generation, high and low position heat generation, are all automatically completed by the machine.

After testing the heat capacity 5 times, the computer automatically calculates constants such as average heat capacity, range, relative standard deviation, etc., automatically saves the data, and the system will automatically call these parameters for future heat generation measurements.

8. The sample number can be automatically and continuously numbered, or manually numbered. The test date is automatically recorded and a fixed format report is output.

9. During the testing process, items that need to be selected but not changed every time, such as heat capacity, heat generation, calibration formula selection, instrument heat capacity, ignition wire heat, etc., are automatically stored in the data storage and called up during the testing process. They are not affected by interruption and remain unchanged until the next change.

10. Test results can be queried by date and number.

11. ★ Large capacity outer cylinder and water tank, with compressor cooling to ensure constant water temperature, suitable for long-term continuous testing, ultra quiet design.

12. Unique structural design, with automatic water purification and water level indication, improves the reliability of the instrument and the intuitiveness of user operation.

Technical Specifications

1. Temperature measurement range: 5 ℃ to 40 ℃

2. ★ Using PT1000 temperature probe, temperature resolution: 0.0001 ℃

3. Repeatability of heat capacity: RSD ≤ 0.2%; Thermal capacity precision: ≤ 0.10%

4. Accuracy: within the uncertainty range of the standard sample

5. Calorific value error: ≤ 50J/g (benzoic acid)

6. Sample weight: 1g (coal)

7. Power supply: 220 V ± 22 V, 50Hz ± 1Hz

8. * High power: 0.65kW

9. Host size: 480mm × 480mm × 47mm

10. Refrigerant size: 520mm × 370mm × 470mm