ACD CAL 2000 LT Gebrauchsanweisung - Seite 4

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VII.
Accessory Items / Parts List
The following items are available as accessories for the
CAL 2000 LT:
P/N
Description
113-0402-00
Male Hose Barb Quick Connector, 1/8"
OD hose
150-4121-00
Charcoal Filter Element, one
each
150-4131-00
Charcoal Filter Element,
package of 12
362-0600-00
AC Adaptor, 115 VAC, US style plug
7.5VDC, 300 mA
400-0600-LT
Main Circuit Board Assembly
400-0703-00
Power Circuit Board Assembly
510-2000-LT
Chlorine Cell
510-2050-LT
Hydrogen Sulfide Cell
510-2070-LT
Hydrogen Cyanide Cell
510-2090-LT
Hydrogen Cell
Page 17
I.
GENERAL DESCRIPTION
The Cal 2000 LT is a battery-powered, portable electrochemi-
cal 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 life and
avoiding generation of unwanted gas. A built-in mass flow
sensor provides accurate flow control to insure proper cali-
bration gas concentrations. The Cal 2000 LT uses the fol-
lowing components to produce the calibration gas/air mix-
ture:
Internal Micro Pump
A small, rotary vane, micro air pump draws in ambient air to
blend with the generated gas.
Electrochemical Generating Cell
The electrochemical generating cell contains an electrolyte
solution and either inert or consumable electrodes, depend-
ing 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 LT instru-
ment what type and concentration of gas is to 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 must be
oriented flat (on the units feet) for correct concentration out-
put.
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