Sl No

Particulars

Approximate Quantity

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Water level meter

For measuring depth of water in wells, boreholes, standpipes, and tanks.

Level meters that feature a laser marked PVDF flat tape, and coaxial cable water level meters. Both options allow shut-off and sensitivity adjustment .

Water level meter that has a solid stainless steel probe, connected to durable polyethylene flat tape, a standard 9 volt battery, housed inside the reel hub. The electronics should be water resistance.

When the probe enters water, the electrical circuit should be completed, sending a signal back to the reel where a light and clearly audible buzzer should be activated.

Size: 12.7 mm wide, 102 mm long (1/2" x 4")

Effective diameter: 16.5 mm (5/8")

Weight: 100 grams (3.53 ounces)

Cable length : 60 meter .

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Water level data-logger :

Pressure and water level range : 0 to 400 kpa,0 to 100ft

Factory calibrated range at 0 to 40 degc ;

Water level accuracy : +/- 3.0 cm ;

Pressure resolution :<0.04 kpa 0.013 ft water ;

Burst pressure : 500 kpa ;

Temperature accuracy: +/- 0.44 deg c from 0 deg c to 50 degc ;

Temperature range : - 20 deg c to 50 deg c ;

Temperature resolution ( 10 bit ) : 0.10°c at 25°c;

Pressure response time :< 1 second at a stable temperature ;

Temperature response time : 10 minutes ;

Stability : 0.1 deg c per year ;

Material of construction : polypropylene housing for use in fresh water ;

Measurement of water level , temperature , barometric pressure , absolute pressure ; should have ceramic pressure sensor ;

Logger measurement includes:

Real time clock : +/- 1 minute per month 0 deg c to 50 deg c;

Battery : should have replaceable battery 2/3 aa, 3.6 volt lithium

Memory : 64 k bytes , 21000 pressure measurement should log for the sample data viewing and data analysis

Data viewing, data analysis software with usb connection cable should be included.

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