Global Water WL705 Manual

Global Water Ikke kategoriseret WL705

Læs gratis den danske manual til Global Water WL705 (2 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 30 personer og har en gennemsnitlig bedømmelse på 4.9 stjerner ud af 15.5 anmeldelser. Har du et spørgsmål om Global Water WL705, eller vil du spørge andre brugere om produktet?

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Side 1/2

WL705 Ultrasonic Water Level Sensor

01-313 5/4/12.doc

Specifications:

Sensor Range: WL705-003 4” (.33’) - 36” (3’)

WL705-012 4” (.33’) - 144” (12’)

WL705-048 15” (1.25’) - 576” (48’)

Supply Voltage: 10-30VDC (sensitivity reduced below 15 VDC)

Supply Current: 40mA

Averaging Time: 15 seconds

Temperature: -40º to +158º F Output Current:

4mA, maximum distance

20mA, minimum distance

Connections: Brown +15-30VDC

Blue Ground

Green 4-20mA output (WL705-048)

Black 4-20mA output (WL705-012 & WL705-003)

Operation:

The WL705 sensors use ultrasonic sound waves to determine the distance from the face of the sensor

to the surface of the water by timing how long it takes the signal to return. An internal temperature

sensor automatically compensates for the temperature related variation in the speed of sound and a 15-

second averaging time reduces the affects of turbulence in the water. Note that the sensor must be

powered for 15 seconds for the output to stabilize.

WL705

-012/003

WL705

-048

WL705 Ultrasonic Water Level Sensor

01-313 5/4/12.doc

Calibration:

The calibration procedures for recording devices vary. The process requires knowing the output

current from the sensor at two different distances, as well as the distance from the sensor to the bottom

of the reservoir. The sensor’s output current increases as the distance between it and the target gets

shorter. Thus, the current is lowest when the water level is zero. Due to the difficulty in calibrating

the recording device with actual water levels, a hand held target may be used or the sensor signal can

be reflected off a solid flat object at known distances. Measuring the current at two different distances

within the range of the sensor would be one calibration method. Divide the difference in the two

currents by the difference in distance to get the amount of current per unit of length. Mount the sensor

at a distance from the bottom that gives a zero depth reading. The 12º width of the beam means the

size of the “spot” on the surface of the water gets bigger at greater distances. Maximum accuracy is

attained by insuring that the beam hits a flat surface at all times, best achieved by mounting the sensor

as close as possible to the surface of the water without exceeding the measurement range.

LED Functions:

Round LED Displays “Green” when target is sensed, “Red” when target not

found/not sensed.

Square LED WL705-003 - Illuminates “Green” when target is sensed and is within

the min and max range (4” – 36”)

WL705-012 - Illuminates “Green” when target is sensed and is within

the min and max range (4” – 144”)

WL705-048 - Illuminates “Green” when target is sensed but shorter than

the minimum distance sensor (<15”)

Rectangular LED WL705-003 - Illuminates “Green” when target is sensed and is within

the min and max range (4” – 36”)

WL705-012 - Illuminates “Green” when target is sensed and is within

the min and max range (4” – 144”)

WL705-048 - Illuminates “Green” when target is sensed but farther than

the maximum distance for the sensor (>48’ or 576”).

Produkt Specifikationer

Mærke:	Global Water
Kategori:	Ikke kategoriseret
Model:	WL705

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