Campbell LWS-L Manual do Operador descarregar pdf (Página 41)

Campbell Scientific TE525-L Tipping Bucket Rain Gauge

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

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

RM72004,0000163 -19-29OCT13-1/1

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

Mount Location

NOTE: Before installing rain bucket, remove packaging

that secures tipping mechanism inside rain bucket.

Mount rain bucket in a level spot that is representative

of surrounding area. Install rain bucket so funnel lip is

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

Install rain bucket above average snow depth. Natural

vegetation or gravel surface around rain bucket provides

best results. Avoid placing rain bucket in a paved area.

Place rain bucket away from objects that obstruct wind.

Position rain bucket a distance of 2–4 times 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.

65-1

102914

PN=41

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