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To better meet customer needs, Campbell

Scientific Capital, Inc., offers short-term

rentals and long-term leases of the

CR5000 (left), CR9000 (center), and

CR23X (right).

Equipment

leasing, rentals

now available

through CSCI

By Robert Carpenter

Campbell Scientific Capital, Inc.

To serve the changing needs of

our customers, Campbell Scientific

has created a rental/leasing organiza-

tion, Campbell Scientific Capital,

Inc. (CSCI). CSCI offers short-term

rentals, long-term leases, and lease-

to-own purchase options of Campbell

Scientific equipment.

Campbell Scientific Capital was

created because we realized that rent-

ing or leasing additional dataloggers

to get a job done makes sense for

some customers.

We currently offer the CR23X

Micrologger, and the CR7, CR5000,

and CR9000(C) Measurement and

Control Systems. To help meet addi-

tional application needs, we also

offer a variety of datalogger peripher-

als: multiplexers, some SDM

devices, many communication

peripherals, and external data storage

devices for data retrieval.

As with our corporate parent, we

accept MasterCard, Visa, and

American Express credit cards.

Visit our Web site at the following

address:

http://leasing.campbellsci.com or

give us a call at (435) 750-9560. !!

SDMs added to product line

Campbell Scientific’s SDMs

(Synchronous Devices for Measure-

ment) are microprocessor-controlled

measurement and control peripherals

that augment the measurement and

control capabilities of most Campbell

dataloggers.

Once enabled, the SDMs operate

independently of the datalogger until

additional commands are received or

results are transmitted. Each SDM is

configured with a unique address and

is controlled/interrogated via a single

datalogger programming instruction.

Up to 16 SDMs can be operated by

one datalogger; the SDMs are wired to

the 12 Vdc, GND, and three SDM-

compatible control ports on a CR10X,

CR23X, CR7, or CR5000.

The SDMs listed below are new to

our product line this year; all were

Campbell Scientific Ltd.

The SDM-CVO4 is a four-channel device capable of

outputting either a voltage signal (0 to 10 V) or

a current signal (0 to 20 mA). The

signal level is under datalog-

ger program control, typically

by Program Instruction 103

(also used for the SDM-AO4).

Typical applications are driving

remote "current loop" display

units, retransmitting measured

values to industrial control systems

that have current or voltage inputs,

sending control signals to valve

controllers, and providing excitation

voltages or currents to external sensors

which cannot be excited directly by a datalogger. !!

New SDM-CD16D expands digital output

The SDM-CD16D is a 16-channel

device that expands the digital output

capabilities of Campbell Scientific dat-

aloggers. Output voltages are 5 V

(nominal, high state) and 0 V (nomi-

nal, low state). Output source current

is 36 mA at 3 Vdc. The SDM-CD16D

is intended for use with dc-powered

devices only, to drive normal logic

level inputs as well as directly control

low voltage valves and relays.

A related Campbell SDM product,

the SDM-CD16AC, is rated for ac use.

SDM-CAN: The CANbus network interface

The SDM-CAN interfaces a

Campbell Scientific datalogger directly

to a CANbus peripheral or communi-

cations network.

CANbus is

a commu-

nication

protocol

developed for robust data

transfer; it is becoming widely used in

the automotive test industry as part of

on-board vehicle diagnostic systems.

Data acquired by a vehicle’s on-

board "computer" is exported to the

datalogger where it can be stored and

synchronized with a variety of other

measurements. This allows storage of

comprehensive time-series data, on-

board system operation to be verified

by independent measurements, and

the capability to measure a large

number of additional or

unique sensors "in parallel"

with the diagnostic system

(e.g., GPS data, additional

pressure, flow, temperature

measurements).

The SDM-CAN is configured for

individual tests within the datalogger

program; a 9-pin RS-232 is also avail-

able to update firmware to the SDM-

CAN from a PC. Baud rates up

to 1 Mbaud are supported by the

SDM-CAN. !

SDM-CVO4 outputs voltage or current signal

New to the CSI

product line this year, the

SDM-CVO4 can output voltage

signals up to 10 Vdc and current

signals up to 20 mA.

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