One, the instrument structure

This sampler machine main parts the diaphragm pump, control valve, buffers, flow meters, electronic timing circuit, undervoltage indicator circuit and power supply components.

1. the it structure and Assembly of advanced technology for diaphragm pump, small pump has a compact structure, high efficiency, air pressure, load capability, stable flow, low power consumption, low noise advantages. 100mmHg load cases, can still get around 1L/min. Pumps valves made of special rubber, with acid and alkali resistant, long life, long stood the test of time and still maintain good performance. Pump drive motor with electronic speed control, fluctuations in voltage and the battery voltage drop varies the cases, been able to ensure that the motor speed control operation. Load a certain range changes in the sampling cases, electronic circuit can be used to adjust the power, the diaphragm pump flow rate stabilization.

2. time-controlled institutions using fixed 8-speed timing structure, it does not have to be set prior to each sampling, will not set error and unable to verify.

File: 1 2 3 4 5 6 7 8

Minute hand 5 10 15 30 40 50 60

8-speed selection switch can be selected according to the requirements in the table when outage, as long as the switch to a small 'ON' (open) require downtime can be obtained. Second gear or more than one document at 'ON', time an error occurs. 8-speed switch is in the off position, the instrument does not work. Consider the operator selected have different requirements, set up manual in '1' file, the user can according to their own needs time to shutdown.

3. work instructions and under-voltage indication for operation efficiency, to more practical equipment. TQC-1500 small samplers equipped with indicator and undervoltage indicator, it can obviously tell the operator when to replace batteries, work lights, when low voltage to 6V, the light automatically goes out, displays battery voltage. It is also essential for Ni-MH battery isolation protection.

4. power supply instrument is equipped with ' charge-voltage regulator ' dual power supply, power switch location on a normal sampling ' regulators ' position, 8V DC output voltage; Charging time power switch position to ' charge ' the position while the sampling switch is in the off State, will be automatically charged. When the sampled battery voltage to rated value, the charger indicator light went out of itself, recharging is completed.

Out sampling, in the absence of AC power case, using dry batteries is very convenient. 6 5# dry batteries generally use about 4.5 hours, across the Ni-MH battery can be used for about 8 hours. Sampler led is off, under voltage, the battery needs to be replaced. Ni-MH battery under voltage insulation, you will need to charge.

Second, the technical parameters

1. the maximum suction pressure: ≥ 25000pa

2. rated flow rate: ¡ý 1.5L/min (40mmHg)

3. traffic usage: 0.1~ 1.5L/min

4. flow accuracy: 2.5

5. stability: ≤ ± 5%

6. electronic timing error: ≤ ± 1%

7. working temperature: 5~ 40 ℃

8. the instrument use: continuous and intermittent use

9. power supply: AC-DC

10. dimension: 137x88x45 (Mm3)

11. weight: ﹤ 0.5Kg (with battery)

Third, the use and maintenance

1. sampler pull the battery cover plate, dry batteries or rechargeable batteries into the 5th section 6, cover cover plate, and then gently pull clock set cover plate to the left, select the time you want (for example, '2' location, 5 minutes) push the sampler power switch, red lights, instruments began to work. Precision stopwatch proofing available.

Note: if not for a long time, the batteries should be removed to prevent battery within the metamorphic fluid damaged machine parts.

2. in the course of sampling, connected to the filter, on the one hand in the air with dust, aerosols, acid and alkali gas filters and other debris; The other hand, solution, solution once the filter filter fiber, fiber will soon swell, clogging the air intake channel, for parts in particular pump protection. Event solution, to clean the filter replace filter on fiber and foam block. Used for a long time, to replace the filtering fiber and foam blocks, so as not to soil quality through the filter into the pump, airway resistance increases, flow decreases.

3. If the actions occasionally careless, inhalation of acid and alkali solution, should be cleaned immediately topping-up a few times, after anhydrous ethanol injection cleaning, usually can return to work. If damage is serious, should be sent back to the factory repair, or to a specific station maintenance.

Four other

1. the annex to the instrument

Instrument boxes (each of two instruments) 1

Absorption bottle shelf 1

Tripod 1

Charging regulator dual power supply 1

Dust foam block a number

Filter 1 only

Description 1

2. otherwise absorbed glass bottles, small plastic sampling head, activated charcoal sampling tubes for purchase.

3. the service life of products. Within a month of purchase, if the quality does not meet specifications, they may exchange or refund (instrument damage and overhaul).