DAVIS Solar Radiation Sensor Скачать руководство пользователя страница 4 | Manualshive

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DAVIS Solar Radiation Sensor Скачать руководство пользователя страница 4

Page 4

Solar Radiation Sensor

Installing the Sensor

Follow the instructions in this section to install your sensor. Before you begin, con-
sult the System Installation manual for instructions on labeling the sensor cable.

✦

For evapotranspiration (ET) or scientific measurements, the sensor can be
mounted on the Sensor Mounting Arm (SMA) or any level surface.

✦

For measurements where the immediate effect on humans is of interest, we recommend
that you mount the sensor such that its axis is aligned with the sun’s rays at solar noon.

This will maximize the mid-day readings and provide what is probably
a more accurate measure of the solar radiation people are exposed to.
The Health EnviroMonitor™ calculation of the solar radiation contribu-
tion to apparent temperature assumes that the sensor is tilted. The Sen-
sor Tilting Bracket #7706 is designed for this purpose.

✦

Similarly, if you wish to predict or monitor the irradiance on a solar voltaic or
thermal collection panel the data are probably most relevant if the sensor is tilted
to the same angle as the collection panel.

The Sensor Tilting Bracket #7706 is designed for this purpose.

Typical Standard Installation

The illustration below shows typical standard solar radiation installation. The
sensor cable attaches to connector S5 on the sensor interface module (SIM).

T

YPICAL

S

TANDARD

I

NSTALLATION

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Содержание Solar Radiation Sensor

Страница 1: ... made up of the following components Shield The outer shell shields the sensor body from thermal radiation and pro vides a path for convection cooling of the body minimizing heating of the sensor interior It provides a cutoff ring for cosine response a level indicator and fins to aid in aligning the sensor with the sun s rays Body The body houses the following components Diffuser Welded to the bod...

Страница 2: ... 4 screw retainers Three wood screws One 8 32 x 3 4 19 mm machine screw One 8 32 hex nut One 8 flat washer One3 16 5 mm cable clamp TOOLS AND MATERIALS NEEDED You may need some of the following tools and materials in order to complete your installation Please be sure you have everything you need before beginning Medium Phillips screwdriver Scissors Center punch or nail if mounting on wood surface ...

Страница 3: ...ar radiation reading on the console Consult the station manual for instructions on displaying solar radiation 3 Shade the sensor and make sure the reading changes Standard and Industrial Versions Installation 3 Testing the Sensor 3 Installing the Sensor 4 Typical Standard Installation 4 Typical Industrial Installation 5 Mounting on the Sensor Mounting Arm 6 Mounting on the Sensor Tilting Bracket 7...

Страница 4: ...rovide what is probably a more accurate measure of the solar radiation people are exposed to The Health EnviroMonitor calculation of the solar radiation contribu tion to apparent temperature assumes that the sensor is tilted The Sen sor Tilting Bracket 7706 is designed for this purpose Similarly if you wish to predict or monitor the irradiance on a solar voltaic or thermal collection panel the dat...

Страница 5: ...nstallation Page 5 Typical Industrial Installation The illustration below shows typical industrial solar radiation installation The sensor cable attaches to connector S5 on the sensor interface module SIM TYPICAL INDUSTRIAL INSTALLATION ...

Страница 6: ...HIELD ONTO BODY 3 Place a flat washer over the end of each screw and insert it into the body 4 Place a spring over the end of each screw and hold the springs in place using a 6 screw retainer 5 Secure the sensor to the mounting arm by driving the screws into the appropriate holes as shown below MOUNTING THE SOLAR RADIATION SENSOR ON THE SMA 6 Using the bubble level on the sensor as a guide adjust ...

Страница 7: ... as shown below SECURING SENSOR CABLE Mounting the Sensor on the Sensor Tilting Bracket Follow the instructions below to mount the sensor on the Sensor Tilting Bracket Do not install the bracket onto the mounting arm until instructed to do so below 1 Route the cable through the large hole in the bracket if desired 2 Place the shield onto the body as shown below PLACING SHIELD ONTO BODY ...

Страница 8: ...TION SENSOR ON THE SENSOR TILTING BRACKET 6 Position the Sensor Mounting Arm so it is pointed in the direction of the sun at solar noon Solar noon occurs halfway between sunrise and sunset consult your local paper or the WeatherLink software for sunrise and sunset times To correctly align the arm screw a mounting screw part way into any of the sensor s screw posi tions on the mounting arm and rota...

Страница 9: ...e levelling screws When pointed directly at the sun the shadows from the alignment fins should appear as shown in the illustration below FINAL SENSOR POSITIONING 9 Secure the sensor cable to the underside of the mounting arm using the 3 16 cable clamp 8 32 x 3 4 screw 8 hex nut and 8 flat washer as shown below SECURING SENSOR CABLE ...

Страница 10: ...ng surface using a 7 8 22 mm drill bit so the bottom of the sensor can sit inside of it and the sensor cable can run to the other side 3 Route the sensor cable through the hole in the wood if desired 4 Place the shield onto the body as shown below PLACING SHIELD ONTO BODY 5 Place a flat washer over the end of each screw and insert it into the body 6 Place a spring over the end of each screw and ho...

Страница 11: ...sible Routing Sensor Cable To prevent fraying or cutting of the cable where it is exposed to weather secure it so it doesn t whip about in the wind Use cable clips or weather resistant cable ties to secure the cable Place clips or ties approximately every 3 to 5 feet 1 to 1 6 m Do NOT use metal sta ples or a staple gun to secure cables Metal staples especially when installed with a staple gun have...

Страница 12: ...on shield It consists of several white plastic plates Accessing the SIM 1 Remove the wing nuts lock washers and flat washers 2 Remove the first three plates of the radiation shield You should now be able to see the SIM 3 Plug the solar radiation sensor cable into the receptacle labeled SOLAR on the SIM Hold the sensor body with white diffuser pointed upward Do NOT touch the diffuser If you do clea...

Страница 13: ...unting shelf 4 Place a flat washer over the end of each screw and insert it into the body 5 Place a spring over the end of each screw and hold the springs in place using a 6 screw retainer 6 Secure the sensor to the mount ing shelf by driving the screws into the appropriate holes as shown 7 Using the bubble level on the sen sor as a guide adjust the sensor until it is level by tightening or loosen...

Страница 14: ... rain collector base The cable needs to be wedged down into the notch so it will come up inside the rain collector cone when the cone is put back on 3 Route the cable down and out through the hole in the base Plug the cable into the receptacle labeled SOLAR in the SIM to see how much slack will be left in the cable as you secure it inside the rain collector 4 In the rain collector base loop up the...

Страница 15: ... on page 12 1 Slide the two open plates over the threaded studs 2 Slide the single closed plate over the threaded studs 3 Place a flat washer lock washer and wing nut over one of the studs Tip temporarily place a wing nut on one of the studs to hold the plates as you place washers and a wing nut on another stud 4 Finger tighten the wing nut 5 Repeat 3 and 4 until all three wing nuts are secure MAI...

Страница 16: ...ed TECHNICAL SUPPORT Before calling Technical Support 510 732 7814 regarding a problem with your sensor carefully check all cable connections from the sensor to the console Cable connections account for a large portion of the potential problems Con nections should be firmly seated in the jacks and plugged in straight If you think a connection may be faulty try jiggling the cable while looking at t...

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