Campbell LWS-L Návod k obsluze stáhnout pdf (Strana 57)

Campbell Scientific TE525-L Tipping Bucket Rain Gauge

RM72004,0000162 -19-07MAY13-1/1

RM72004,0000166 -19-07MAY13-1/1

RM72004,0000163 -19-07MAY13-1/1

RM72004,0000164 -19-07MAY13-1/1

RM72004,00001A1 -19-07MAY13-1/1

Theory of Operation

The rain gauge measures precipitation (rainfall and

overhead irrigation) in 0.25 mm (0.01 in.) amounts and

sends a signal through the gateway to the John Deere

Field Connect website. The website collects the sensor

signals and presents precipitation amounts up to 100 mm

per hour (4 in. per hour).

Precipitation collects in a bucket that tips when filled to the

calibrated level. A magnet triggers a switch as the bucket

tips. Switch signals are counted to measure precipitation.

PC15761 —UN—24AUG12

Specifications

Switch: Momentary potted reed switch

Average Switch Closure Time: 135 ms

Bounce Settling Time: 0.75 ms

Switch Rating: 30 VDC @ 2 A, 115 VAC @ 1 A

Output Resolution: 0.2 mm (0.01 in.)

Accuracy: 1.0% up to 50 mm/hr. (2 in./hr.)

Operating Environment: 0–50 °C (32–125 °F), 0–100%

relative humidity

Dimensions:

•

Height, Total: 255 mm (10 in.)

•

Collector Diameter: 154 mm (6.1 in.) with knife-edge

•

Funnel Depth: 163 mm (6.4 in.)

•

Splash Protection: Greater than 50 mm (2 in.)

•

Cable Length: 6 m (20 ft.)

•

Connector Type: Molex MX150

Mounting Location

Mount rain bucket in a level spot which is representative

of the surrounding area. Funnel lip must be horizontal

and at least 30 cm (12 in.) above ground and must be

placed above average snow depth. The ground surface

around rain gauge must be natural vegetation or gravel.

Avoid placing rain gauge in a paved area. Place rain gage

away from objects that obstruct wind. Position rain gage a

distance of 2–4 times the height of any obstruction.

Maintenance

NOTE: Contact your John Deere dealer for

replacement parts.

Check funnel and bucket mechanism. Remove dust,

insects, plant litter, and other material.

External Cleaning Of Probe, Sensors, and

Gateway

IMPORTANT: Field Connect components and

connections may not be weatherproof. Properly

close and latch enclosure cover after any

procedure completed inside enclosure.

Do not use pressure washer or common solvents such

as automotive brake cleaning fluid to clean soil moisture

probe, sensors, or gateway. To remove soil from plastic

components, use a solution of soap and water.

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