Davis DAV-6470 Handleiding

Davis Temperatuurregelaar DAV-6470

Lees hieronder de 📖 handleiding in het Nederlandse voor Davis DAV-6470 (5 pagina's) in de categorie Temperatuurregelaar. Deze handleiding was nuttig voor 49 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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Soil Moisture Sensor & Multi-Purpose Temperature

Probe Installation Instructions

For Wireless Leaf & Soil Moisture/Temperature Stations

The WATERMARK Soil Moisture Sensor and the Multi-Purpose Temperature

Probe are for use with the Vantage Pro2 Wireless Leaf & Soil Moisture/Temperature

Station, #6345. Please refer to your Wireless Leaf & Soil Moisture/Temperature

Station manual for more information on how to install and use the sensors.

Installation Procedures

Connecting the Sensors

• To extend the sensor cables, see “Extending Sensor Cables” on page 4.

• To use a temperature probe for temperature compensation of a soil moisture

sensor, install the sensor pair in corresponding connectors: 1 & 1, 2 & 2, 3 &

3, and 4 & 4.

• If no soil temperature probe is used, the station will use a default temp of

75°F (24°C) to compensate the soil moisture readings.

• If you are installing a temperature probe that is not providing temperature

compensation for a soil moisture reading, do not use a connector that matches

to any installed soil moisture sensor.

• If a soil moister / temperature sensor pair do not use matching connectors, the

soil moisture reading can be off as much as 1% for every 1

° °F (0.5 C) error in

the soil temperature.

1. Run the sensor cables up through the grommets on the bottom of the station

housing.

2. Connect soil moisture probes to the SOIL connectors.

3. Connect the temperature probes to the TEMP connectors.

Cable Clam

Mount

Leaf Wetness

Sensor Cable

Rubber

Grommets

SENSOR

INTERFACE

MODULE

Cable Clamp

Cable Clam

Screw

Temperature Moisture

1 2 3 4 1 2 3 4

Soil Moisture

Sensor Cable

Temperature

Probe Cable

Sensor Cables Enter Station

Housing Through Grommets

Connecting Sensor Cable to

Terminal Block

4. Secure all sensor cables through the provided cable clamps and then secure the

mounts by driving a screw through the clamp into the cable clamp mounts

located above the grommets.

Before “Planting” the Sensors

If you can, soak soil moisture sensors overnight in water before installing them.

• Always “plant” a wet soil moisture sensor.

• If time permits, wet the soil moisture sensor for 30 minutes in the morning and let

dry until evening, wet for 30 minutes and let dry overnight, wet again for 30 min-

utes the next morning and let dry again until evening. Soak over the next night

and install wet. This will improve sensor response during the first few irrigations

or waterings.

“Planting” the Sensors

1. Make sensor access holes to the depth required with a 7/8” diameter rod.

• Make a hole for the soil moisture sensor and a sepa-

rate adjacent hole for the temperature probe.

• For very coarse or gravely soils, an oversize hole of 1”

to 1 1/4” may be needed to prevent abrasion damage

to the soil moisture sensor membrane. In this case,

you will need to “grout in” the sensor with a slurry

made from the sample soil to get a snug fit in the soil.

2. Always install sensors in the active root system of the

crop with a snug fit in the soil.

CAUTION: In gravelly soils and with deeper sensors, you must

use extra caution to install the soil moisture sensor

without damaging the membrane.

• Lack of a snug fit is the biggest problem in obtaining

good soil moisture sensor readings.

• The ideal method of making the access hole is to have

a stepped tool. This makes an oversize hole for the

upper portion and an exact sized hole at the bottom

where the sensor is located.

2-1/2" (64 mm)

7/8" (22.5 mm)

Cold rolled steel,

round rod

1-1/4" (32 mm)

approximate

diameter

Overall length

variable

Stepped Sensor Installa-

tion Tool

3. Fill the hole with water and push the sensor down into the hole so it bottoms out.

• A length of 1/2” Class 315 PVC pipe (pipe inside diameter = 0.716”, 18.18mm)

fits snugly over the sensor collar and can be used to push the sensor. A good snug

t in the soil is important.

4. You can solvent weld the 1/2” Class 315 PVC pipe to the sensor collar for easier

installation and removal. Use a PVC/ABS cement (IPS Weld-on #794 or equiva-

lent).

5. Carefully backfill the access hole with soil to eliminate any air pockets which

could allow water to channel down to the sensor.

6. If you are using temperature sensors, install the temperature sensor next to the

soil moisture sensor.

Note: Soil moisture sensors will provide better accuracy after one or two irrigation cycles, during which

time they “break-in” and acclimate to the soil conditions.

“Planting” Sensors in Turf or Lawns

1. Cut a slight “V” shaped trench about 5” wide at the top, and about 6” deep into

the turf, and about 6” long.

2. Lift out the turf plug piece you just cut.

3. Press the sensors into the soil at about a 45 degree angle into the side of the

trench to set the sensors about 3”-5” below the soil surface. Make sure they are

set snugly in the soil.

4. Replace the plug removed from the trench and compact it back into place. It will

repair itself in short order.

5. Run the wires to the Soil Moisture Station and connect them as described in

“Connecting the Sensors” on page 1.

Sensor

Wires

Tape

1/2" Class 315 PVC Pipe

(inside diamter = 0.716",

18.18mm)

Pipe welded to

sensor collar with

PVC/ABS cement

Soil Moisture

Sensor

PVC Pipe Welded to Soil

Moisture Sensor Collar

Product specificaties

Merk:	Davis
Categorie:	Temperatuurregelaar
Model:	DAV-6470

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Handleiding Temperatuurregelaar Davis

Davis DAV-6470 Handleiding

23 Augustus 2023

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