Ventilation and humidity meter verification
Ventilation and Dryness Tester/Ventilation Tester Model:HT29
I. Overview:
HT29 Ventilation Dry-wet Table Verification Instrument is based on the production of HDHM2 mechanical ventilation and humidity table, HDHM2A mechanical ventilation and humidity table, HDHM2D electric ventilation and humidity table mainly taking into account all kinds of domestic mechanical ventilation and humidity table, electric ventilation dry Designed with the characteristics of wet table, it is suitable for testing instruments for any ventilated dry-wet meter. It is a special intelligent inspection equipment for the verification of ventilated dry-wet meter. It adopts US BESTACE 761 series micro differential pressure transmitter with a range of 0～ 10pa, accuracy ± 0.4%, using C8051 series microcontroller, 24-bit A / D conversion, LCD and LED dual display. The use of the instrument can increase the credibility of the verification data and improve the verification efficiency. The verification personnel can perform the work after simple training. It can store 24 verification records (1 to 24). The verification and inquiry can be performed at the same time. It is equipped with RS485 communication interface and can realize the management of the microcomputer.
Second, the main technical indicators:
1. Range: 0 to 1.02mm/H2O (10pa).
2. Accuracy: ±0.5%.
3. Display mode: LCD and LED.
4. Recording method: 6 minutes automatic record, manual record the second lap time.
5. Inquiries: Incremental query (debugging display changes in wind speed; timing display wind speed).
6. Storage: Manually store 24 sets of verification data (record number: 1 to 24).
7. Prompt mode: Fixed value for single long tone: The first score is <0.65 or >0.85mm/H2O (1 tone)
8. Alarm mode: Short press 3 times and red light (2 sets can be set).
9. Communication method: RS485 communication interface.
Third, product features:
1. High-precision: The traditional test ventilation dry and wet table uses a differential pressure gauge, the basic error of the differential pressure gauge is 0.8Pa, the maximum error of the instrument is only 0.05Pa, far better than the differential pressure gauge.
2. High reliability: Traditional tests require human adjustments and readings. There are reading errors. The instrument records automatically, and the software is highly reliable.
3. High efficiency: The traditional test requires continuous adjustment and reading for 6 minutes. The instrument does not require the professional to read every minute, and it automatically completes the 6 minute inspection process and records.
4. Automatic determination: traditional inspections need to manually look up the table to calculate the decrement, determine whether it is qualified. The instrument is set to standard values ​​and the calculation is automatically determined.
5. Easy timing: traditional test requires two stopwatch timings and is easy to mix. The instrument does not need to time, at the same time can record the time of the barrel rotation.
6. Microcomputer management: The instrument has a standard 232 serial port, and the connection with the computer can automatically generate a report.
7. Over-range: The instrument can be used over-range, up to 1.24mm/H2O or 4m/s.
Fourth, software introduction:
The instrument software is programmed in C language. The AD conversion zero point is automatically calibrated. The 24-bit AD conversion guarantees the conversion accuracy. The software timing is convenient for recording. The judgment parameters are set. The wind speed calculation can determine whether the inspection table is qualified according to the preset value. Tips to adjust the deviation, 24 groups of records to facilitate the query, the standard serial port to facilitate the implementation of computer management.
V. Display mode:
LED: 5-bit instantaneous wind pressure (4 decimal places).
LCD: "minutes and seconds" (3 digits), 1 to 6 minutes at the end of the recorded value (3 digits), real-time wind speed (3 digits).
When inquiring: The “instant wind speed†displayed on the LCD can be selected to correspond to the wind speed or the decrement of the previous 1 minute.
High Precision Er Spanner Cnc Tool Holder Spanner,Wrench is the use of leverage wrenching bolts, screws, nuts and other threaded fasteners hand tools. Wrench usually made one or both ends of the handle opening or aperture sets of clamping bolts or nuts. When applied to the use of the direction of rotation along the threaded shank force can wrenching bolts or nuts.We are specializing in the production of ER Spanner , we can to figure to sample processing, and perfect after-sales service and technical support. Looking forward to your cooperation!
Spanner Wrench Set,Er Wrench Spanner,Er Spanner,Er Collet Spanner
JINING QINFENG MACHINERY HARDWARE CO.,LTD , https://www.qftoolholder.com