ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Applications
Geohydrological research
Water quantity research
Specifications
Battery life time: 2 years
Diameter (D) and /or size (L*W*H): Sensor D 14 mm
Maximum measuring depth: 10 m
Measured parameters: Level
Measuring principles: Conductivity
Power supply: Battery, 9 volt DC
Product material: Stainless steel, PVC, other material
Reading accuracy: 1 cm
Registration type: Manual
Rod or cable operated: Cable
Package size: 10 x 20 x 15 cm
Weight: 600 g
Description
The water level meter is part of the standard equipment for measurement of groundwater level. It is provided with a stainless steel probe with a diameter of only 14 millimetres, which is connected to a measuring tape with centimetre graduation. The probe gives clear light and sound signals when the probe comes into contact with a conductive liquid. The user can lift the cable slightly to stop the signal. The depth can then be easily read via the measuring tape. The product is accurate to approximately centimeter.
The purpose of the start/stop method of preliminary pumping is to limit the drop in water level such that the inflowing water draws many fewer soil particles into the filter pipe, which will result in much more accurate analyses. This water level meter can be connected to the Royal Eijkelkamp peristaltic pump.
Standards and directives
The Dutch standard NEN 5744-2011 for the sampling of groundwater
The American standard EPA504-S95-504 low flow (minimal drawdown) groundwater sampling procedure
The international directive ISO 5667-11: 2009 sampling of groundwater (micro-purging section).
Brochure
Manual
