I. Overview
In the investigation of environmental pollution and the investigation of water pollution, it is necessary to truly reflect the water pollution situation. A representative water sample must be collected. Especially in the current situation of using environmental and economic management by legislation and economic means, how to collect representative water samples and their correctness in water resources protection work is even more important.
However, the quality and quantity of sewage discharged from factories often change greatly in a short period of time. Domestic sewage also changes with people's living habits and seasonal changes, so the pollution of the total water bodies and rivers is very complicated. Our previous sampling tools have been relatively backward manual operations. Heavy workload and poor accuracy.
The Model 778 Water Quality Autosampler is a flow function container and electronic instrument specially designed for the four kinds of water rafts commonly used in drainage engineering to collect representative water samples.
The instrument can be used for water sampling at the factory wastewater discharge port, river fixed water quality monitoring point, etc. It is an advanced sampling tool and measuring tool.
Second, the instrument structure
The Model 778 automatic water sampler has the following components:
(1) Sampling controller: installed indoors, mainly to set the sampling time and sampling work.
(2) Bracket, strut, sampling motor: installed in outdoor pool
Third, the use of methods (1) The brackets and struts are installed in the outdoor water collection point according to the map, and then the sampling motor is mounted on the struts, and the position of the sampling motor is adjusted according to the height of the water surface (Note: the sampling motor cannot be all Immerse in water and immerse it in water only below the disc).
(2) Connect the sampling water pipe from the sampling water outlet and the other to the laboratory water bottle.
(3) Connect the power cable of the sampling motor to the sampler host in the room.
(4) Connect the power to the main unit and set the sampling time to work.
(5) The sampling time setting procedure is as follows.
Fourth, the sampling time is set:
Adopt imported monolithic integrated circuit design, the peripheral circuit is simple, low power consumption, high reliability, can be set 40 times a day, three sampling options, the sampling time is arbitrarily set. Two days in a week can be set to automatically stop sampling for the rest day. Built-in rechargeable battery and automatic trickle charge, eliminating the need to replace the battery. It has a fast analog function; it uses a high-frequency crystal oscillator and has precise travel time. It is the most advanced automatic time-control instrument.
V. Main technical indicators:
1. Power supply voltage: AC 220V, DC 12V
2. Frequency: 50HZ
3, the number of sampling per day: 20 times
4, sampling method: 3 kinds
5, AC load power: resistive 1000W
6, the minimum programming interval: 1 minute
7, sampling time: 0-99 seconds
8, size: 260 * 150 * 80 (mm)
ShaoXing SurgeCare Medical Products Co., Ltd. , https://www.sxsurgecaremedical.com