ACD Cal 2000 Manuale utente
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AdvancedCalibrationDesigns,Inc.
InstructionManual
CalibrationGasGenerator
AdvancedCalibrationDesigns,Inc.
CAL 2000
Instruction Manual
Cal 2000
Calibration Gas Instrument
TABLE OF CONTENTS
I. General Description Page 2
II. Normal Operation: Diffusion Mode Page 7
III. Normal Operation: Sample Draw Mode Page 12
IV. Menu Options Page 14
V. Maintenance Page 16
VI. Troubleshooting Page 17
VII. Standard Warranty Page 19
VIII. Accessory Items / Parts List Page 21
IX. InstrumentSpecications Page23
ATENCIÓN / ATTENTION
Para bajar la version del manual en Español visite:
http://www.goacd.com/downloads/manuals/
manual-cal-2000-spanish.pdf
Vous pouvez télécharger une version française de ce manuel à:
http://www.goacd.com/downloads/manuals/
manual-cal-2000-french.pdf
WARNING:
This instrument generates calibration gas for toxic gas detectors. The
instruction manual should be read and understood prior to operation
of the instrument. Failure to operate the instrument correctly can lead
to improper calibrations.
This instrument conforms to the protection requirements of the EC
DIRECTIVE 89/336/EEC on Electromagnetic Compatibility (EMC), in
accordancewiththeprovisionsofStatutoryInstrument2372.
The following standards have been applied:
EN 50081-1
Emissions Standard (Residential Commercial and Light Industry)
EN 50082-1
Immunity Standard (Residential Commercial and Light Industry)
I. GENERAL DESCRIPTION
The Cal 2000 is a battery-powered, portable electrochemical gas generator
designed to calibrate toxic gas sensors. Fast warm-up time allows the
instrument to be turned off between remotely located sensors saving battery
lifeandavoidinggenerationofunwantedgas.Abuilt-inmassowsensor
providesaccurateowcontrolandtheabilitytomeasureexternallyprovided
sampledrawowrates.TheCal2000usesthefollowingcomponentsto
produce the calibration gas/air mixture:
Internal Micro Pump
A small, rotary vane, micro air pump draws in ambient air to blend with the
generated gas. The pump may be disabled for use in calibrating sample
draw instruments.
Electrochemical Generating Cell
The electrochemical generating cell contains an electrolyte solution and
either inert or consumable electrodes, depending upon the gas being
generated. A precise concentration of gas is produced when a known
amount of current and a known amount of air is supplied continuously
to the cell. Each cell has a built-in memory chip that tells the Cal 2000
instrument what type and range of gas can be generated and how much
cell life is remaining. The electronics board mounted to the cell should
never be removed from the cell. Removal of this board will void warranty
and destroy the cell. Due to the design characterization of the cell, the unit
mustbeorientedat(ontheunitsfeet)forcorrectconcentrationoutput.
Page 2
Cell Installation and Removal
There are no tools required by the end user for service of the
instrument. The electrochemical cells are shipped seperate of the unit
and should be installed on receipt. To install the cell, remove the bottom
cover of the instrument. This is done by pulling each of the ‘plunger feet’
on the bottom of the instrument. Once all of the plungers have been pulled
out, the bottom cover is simply removed from the instrument.
The cell is keyed to ensure proper alignment into the instrument. When
installed,thecircuitboardofthecellshouldbeatwiththebottomofthe
instrument. Push up on the clear window at the back of the instrument to
eject the cell.
Page 3
Alkaline “C” Batteries
A set of four fully charged, heavy duty alkaline “C” batteries provides
20-30hoursofoperationat.5LPM.Note: Rechargeable or light duty
batteries can be used, but they give signicantly less operating time.
Microprocessor-Based Circuitry
The Cal 2000 has microprocessor based circuitry that performs several
different operations and offers the user many different features. The
microprocessortrackscellandbattery usage,monitorsthe airowrate
andcontrolsthecellandpumptogivetheselectedppmandowrate.In
addition to English, every Cal 2000 is capable of providing menu displays in
French, German and Spanish. See section IV. Menu Options for instructions
on how to change the menu language.
Digital Display
The Cal 2000 has a liquid crystal display (LCD) located on the front of the
instrument. This display is protected by a thin, clear plastic cover that is part
of the front label and may be replaced if it becomes scratched or unclear.
POWER and SELECT
The POWER and SELECT switches are momentary push button type
switches activated through the front membrane panel. They are physical
switches mounted directly on the circuit board.
Nylon Carrying Case
The Cal 2000 comes with a convenient, durable, nylon carrying case. It
is adjustable to be worn as a hip pack, or the belt strap can be reattached
to be worn around the neck or over the shoulder. The top of the carrying
case is clear plastic, allowing the unit to be operated while within the case,
and there is a convenient front pocket for storage of additional cells or the
delivery hose.
Page 4
Page 5
Delivery Hose
Theinstrumentcomesstandardwithathree(3)footlong,¼inchdiameter
norprene hose for delivering the gas to the sensor or calibration adapter.
The hose has a male quick connect adapter for easy attachment to the
instrument.
Mass Flow Sensor
TheCal2000hasabuilt-inmassowsensorthatmeasurestheowrate
of the instrument. This information is used in two ways. With the pump
engaged,itisusedtocontrolthepumptothedesiredowrateoverarange
of0.2to1.0LPM.Withthepumpdisabled,itisusedtomeasuretheairow
rate drawn through the Cal 2000 by an external pump. This information is
usedtoadjustthecellcurrenttothedesiredppm.Theowmetershould
becalibratedagainstaprimarymassowstandardevery12to24months.
Internal Charcoal Filter
Aninternalcharcoallterisprovidedtoscrubcontaminatedairand
provideacleanbaselinefor“zeroing”sensors.Thisltershouldbe
replaced on a yearly basis and is removed by pulling out the grey plunger
atthetopoftheunit.Sparelterelementscanbepurchasedthrough
ACD.Note:Thecharcoalltermustbefullyinstalledintotheinstrument
for correct operation.
Page 6
Optional items available for the Cal 2000 include:
AC Adapter
The Cal 2000 may also be operated from an AC adapter. The AC adapter
converts the AC voltage supplied from the main power lines to 6 VDC which
is used in lieu of the batteries. The adapter plugs into the instrument from
the underside of the case directly into the power board and is independent
ofpolarity.Ifneeded,contactthefactoryforexactspecicationsofthe
AC adapter.
Hard Body Instrument Case
A water resistant, padded instrument case is available for storage and
shipping of the Cal 2000. The case is made out of rugged, high impact
resistant plastic and will help protect the instrument in harsh environments.
The foam insert may be customized to hold additional items like spare
batteries and cells.
Extension Hoses
Longer sample hoses may be purchased for use with the Cal 2000 in lengths
up to 20 feet. Note: the internal pump may not be capable of overcoming
owrestrictionsassociatedwithextremehoselengthswhenoperatingat
1.0 LPM.
Page 7
II. NORMAL OPERATION: DIFFUSION MODE
To start the generator, press and hold the POWER switch, located
in the middle left front of the instrument, until the display reads A. C.
D., approximately three (3) seconds. Release the switch immediately
thereafter.
The instrument will sequence through several screens as follows:
Please Note: If you would like to change the language of the menus, see
section IV. Menu Options: Foreign Language Option, for instructions.
The instrument will display the Serial Number and Cell Number, followed
by the manufactured date.
A. C. D. VI
Copyright 2000
Calibration Date
01 Jan 2000
Manufactured
01 Jan 2000
Serial # 0000001
Cell # 000001
The Calibration Date refers to when the instrument itself was last calibrated
at the Factory. It does not refer to the calibration date of the generating
cells,whichareeldreplaceable.
The following status screens indicate the remaining cell life and battery
status.
Please Note: If you have a ClO2 or H2S cell in the unit you will receive
an additional message at this time. Please refer to section IV. Menu
Options for additional information.
Whentheairowratescreenappears,
youmayadjustyourowratebypressingtheSELECTswitch.Ifyoudo,
youwillentertheowadjustscreen.
Page 8
Cell Life
049 Hrs 59 Mns
Battery Status
100% remaining
Flow: 0.5 lpm
SELECT to change
0.2 to 1.0 lpm
set . . . 0.0 lpm
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