Health and epidemic prevention KDY-1.5A air sampler

KDY-1.5A air sampler I. Overview KDY-1.5A air sampler was used to collect atmospheric air quality in the workplace or special equipment, it is widely used, compatibility, suitable for atmospheric environmental protection, health and epidemic prevention work protection, industrial and mining enterprises and scientific research departments, the instrument control using single-chip integrated circuit, microcomputer constant current control, LCD digital display systems, menu settings, AC and DC, has a sleek, compact, accurate, flexible operation, traffic stability characteristics, and the absorption bottle glass, activated carbon tubes, sampling different mini-class to match the load, can achieve a multi-purpose and multi-functional testing. The instrument housing is made of high-strength AS, ABS plastic, and made moisture-proof, dust-proof, anti-static and other special treatment. Optional flow 0.1 ~ 1L / min, 0.1 ~ 1.5L / min, 0.1 ~ 3L / min (choose one). Second, the technical parameters 1, the maximum vacuum: ≥26000Pa 2, rated load flow: ≥1.5L / min (when at 40mmHg) 3, flow range: 0.1 ~ 1.5L / min, 0.1 ~ 3L / min (optionally its a) 4, the flow accuracy: 2.5 5, stability: ≤ ± 5% 6, the timing error: ≤ ± 1 ‰ 7, Timing range: 0 to 999 since the beginning of arbitrarily set 8, the working temperature: -10 ~ 40 ℃ 9, the instrument state: continuous and intermittent use 10 Power: 6 5 # 11 NiMH batteries, size: 137 × 88 × 45 (mm3) 12, Weight: 0.5Kg (including battery) Third, the instrument structure Introduction Instruments The main part of the diaphragm, valve, buffer, flow meters, the central processor and other components. 1, the diaphragm assembly structure and the use of advanced technology, the compact pump has a compact, high efficiency, exhaust pressure, high load capacity, flow stability, low power consumption, low noise. In 100mmHg load capacity, you can still get traffic 1L / min or so. Valve piece made of special rubber with acid, anti-aging, long life, through the test of time, performance remains good. Pump power motor with electronic speed control, decrease in voltage fluctuation and battery voltage under large, able to ensure steady speed motor operation. During the sampling at a range of load changes, the electronic circuit can adjust the power play so that the diaphragm pump flow stability. 2, when the control processor of the instrument using SCM intelligent design, high timing accuracy, can be set in the range of 999 minutes, easy to operate and maintain the set when the last shutdown at boot time. When the instrument is set to 0 minutes, the sampling time is timing mode timing. 3, the voltage indicator equipment in use display "LO" symbol and the buzzer beeps, then the instrument battery voltage state, this time need to charge the battery or replace the batteries. 4, the charge when the instrument display shows "LO" symbol, it will take charge, so long as connected to the instrument with a dedicated power supply, it can get to 125mA constant current charging. Charger lights red when charging, the charging time when the voltage is generally 14 to 16 hours (standard), the instrument uses no memory effect of nickel-metal hydride batteries, so the large-capacity, long service life. Fourth, the use and maintenance of (a) touch keys Features (1) "" key: This key is a key instrument power on. (2) "Set / Enter" key: This key is the time to set Enter key and set up post. (3) the "sampling / Stop" key: This key is the sampling of the start and stop button, also cursor shift key. (4) "▲", "" digital subtraction key: this key to increment or decrement the digital method of cyclically changing time on the current cursor position. (B) Operation 1. Power: power on, press the "" key, the display shows "P" sign, after about 2 seconds, the buzzer sounds, release the button is turned on. (Time digital display on the display in this case, the time originally set figure) 2, time setting: When turned on, press the "Settings / OK" button, the instrument into the time setting mode, the display shows "E 888" sign, and The current cursor position was flashing on the digital state, then press the shift key to change the cursor position on the display of the current cursor, press "▲" key or "" key to set the desired sampling time, set a good time, then press " Set / confirm "key to enter the standby state, press the" sampling / stop "button for sampling (time setting range from 0 to 999 minutes). 3. Sampling: Before sampling, the sampling first need to set the sampling time, when the sampling time is set to 999 minutes, press the "sampling / Stop" button, the instrument start working, the display shows "" .999 "symbol, and the decimal point flashing, flashing frequency of 1Hz, sampling time countdown timer, after the end of sampling, show the original set time, that means the end of sampling. When the sampling time is set to 0 minutes, press the "sampling / Stop" button, sampling starts, the display shows "RO" sign, and the decimal point flashing, flashing frequency of 1Hz, the sampling time is timing mode timer, end of sampling After displaying the original set time, that means the end of sampling. 4, the instrument is in working condition, connected load is taken regulating valve can get your desired flow. It recommends common flow in 30ml / min or more (to be taken with a load). 5. Shutdown: shutdown state, press "" display after the key for about two seconds "OFF", release the button that is shut down. Note: 1. If the instrument is not used for a long time on hold, batteries should be removed to prevent damage to components within the instrument (in the case of rechargeable batteries need to be recharged when the instrument can not be charged with a non-matching charger power). 2. The equipment in use, do not put liquid or larger particles sucked into the pump, so the flow is reduced.