Campbell SAT SCD Especificaciones descargar pdf (Pagina 7)

Page 7

For applications with large power

requirements, we’ve added the MSX64R

and MSX128R Solar Panels to our prod-

uct line. They are regulated solar panels

with peak output power of 64 and 128

Watts, respectively.

Both panels are designed to support

solar recharge of deep cycle marine bat-

teries. Attaching the power leads to the

posts of a deep cycle battery is made

more convenient using our terminal strip

adapter, part number 4386.

If you own an MSX64R and decide

you need more power, you can order an

unregulated 64 Watt panel (part number

13968) that connects to an MSX64R to

increase the peak output power to 128

Watts. Typically, the only products avail-

able from Campbell Scientific that require

this much power are the 023/CO

Bowen

ratio and CO

Eddy Covariance systems.

Campbell Scientific strives for instru-

mentation designs that have minimal

power requirements. It is perhaps telling

that these "large" solar panels have power

output ratings equivalent to the power

requirements of one household light bulb!

Most of our systems can be easily pow-

ered with a 10 Watt solar panel.

We recommend that you use our

Application Note 5-F to calculate the

specific power requirements of your

data acquisition system. !!

Large power requirements? New solar panels can help

Power requirements vary from applica-

tion to application depending on the

instruments in the system, datalogger scan

rate, ambient temperature, and availability

of a power source to recharge system bat-

teries. Satellite transmitters, for example,

have large power needs. Other stations

might be expected to operate unattended

with minimal recharge over long periods.

These systems may require a rechargeable

power supply with more capacity than

those typically sold with our dataloggers

(e.g., PS12LA, CR23X and CR5000

rechargeable battery bases).

Campbell Scientific offers the BP12

and BP24 battery packs for these systems,

which have nominal ratings of 12 and 24

Ahrs, respectively. These batteries should

be connected to a charging regulator, typi-

cally our CH12R, and a charging source,

such as ac power or a solar panel. The

charging source powers the datalogger

system while float-charging the batteries.

The batteries provide back-up power to

the datalogger if the charging source is

interrupted. The charging regulator also

controls the current flowing to the battery

and prevents the battery current from

flowing to the charging source.

For information about analyzing your

system's power requirements, see our

Power Supply brochure or CSI

Application Note 5-F. !!

The SDS-122 is a two-way data switch

that allows two modem devices to be con-

nected to one datalogger.

For example, this allows you to toggle

between retrieving data from the datalog-

ger locally (e.g., with a laptop computer)

while the datalogger is also connected to

a telephone modem. The SDS-122 is

controlled by a datalogger control port or

logic signals.

The SDS-122 can support both DTE

and DCE devices without the need for a

null modem cable, and can operate in

either automatic or manual mode. !

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The RF313 UHF radio is now

available; it supports transmissions

over frequencies in the 400 to 430

MHz band.

As with other Maxon radios, the

RF313 is compatible with the

RF310B base station and the

RF310M radio modem.

It is not compatible with other

RF systems, including the RF300-

RF304 radios, RF95(A) modems, or

RF232(A) base stations. An FCC-

assigned frequency is required to

order. !!

BP12, BP24: When your power supplies need to be hearty

Shown in an environmental enclosure, a BP12

(top) is typically wired to a charging regulator,

such as our CH12R.

Push-To-Talk serves as RF diagnostic tool

RF313 UHF radio

is now available

Connect two modems to a datalogger with SDS-122

The 13826 double-notch bracket has

been added as an option for the ENC

16/18 enclosure, and is recommended for

attachment to our UT10 10-foot tower.

The triple notch bracket option should

still be ordered when attaching the enclo-

sure to our CM6/10 tripods, UT20 tower,

or UT30 tower. !!

Double-notch bracket option added for the ENC 16/18

DRL or Maxon Radios purchased from Campbell

Scientific include a cable to connect the radio to

its modem. This rainbow-colored cable includes

a 10-pin rectangular connector to which a PTT

(Push-To-Talk) Button can be attached. This

button (part number 13855) is used to trigger a

brief transmission by the radio which can assist

in verifying operation of each RF transceiver in

a system.

It is intended as a short-term diagnostic tool to

optimize RF performance and should not remain connected.

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