Dr-803b automatic water quality sampler (water station type)

  Application Overview: the automatic water quality sampler is mainly used in the automatic water quality monitoring stations of river sections and drinking water sources
It is controlled by the on-site industrial computer and integrated with each on-line monitoring wired monitor to coordinate the work
When there is abnormal monitoring or special sample retention demand, it will automatically save the backup water sample and store it in cold storage at low temperature
It is a necessary part of the automatic water quality monitoring station

Functional features:
Conventional sampling: timing, time, flow, liquid level and external control sampling;
Bottle splitting method: parallel sampling, single mining, mixed mining and other bottle splitting methods;
Synchronous sample retention: synchronous sampling and sample retention with online monitor, which is often used for data comparison;
Remote control (optional): it can realize remote status query, parameter setting, record upload, remote control sampling, etc;
Power off protection: power off automatic protection, power on automatic recovery;
Record: with sampling record;
Low temperature refrigeration: compressor refrigeration;
Automatic moistening and washing: before each sampling, moisten and wash the pipeline with the water sample to be tested to retain the representativeness of the sample;
Automatic emptying: after each sampling, automatically empty the pipeline and blow back the sampling head

Technical indicators:

Sampling bottle	Specification: 1000ml & times; 25 bottles
Single sampling quantity	(10～1000)ml
Sampling interval	(1～9999)min
Sampling error	& plusmn; 7%
Proportional sampling error	& plusmn; 8%
System clock time control error	& Delta; 1≤ 0 1%  & Delta; 12≤ 30s
Water sample retention	2℃～6℃（±1 5℃）
Sampling vertical height	& ge; 8m
Horizontal sampling distance	& ge; 80m
Air tightness of pipeline system	& le;- 0 085MPa
Mean time between failures (MTBF)	& ge; 1440 H / time
Insulation impedance	＞ 20 MΩ
communication interface	RS-232/RS-485
Analog interface	4mA～20mA
Digital input interface	Switching value