Maxtec R217P65 Manuale utente
Nitrogen Analyzer
OPERATING MANUAL &
INSTRUCTIONS FOR USE
R217P65, R217P66, R217P67
R217M65 Rev. G
bWWW.MAXTEC.COM
iWWW.MAXTEC.COM
EC REP QNET BV
Hommerterweg 286
6436 AM Amstenrade
The Netherlands
Maxtec TEL (800) 748.5355
2305 South 1070 West FAX (801) 270.5590
Web-Site: www.maxtec.com
Authorized Representative:
CLASSIFICATION
Protection against electric shock: Internally powered equipment.
Protection against water: IPX1
Mode of Operation: Continuous
Do not throw away. Dispose of properly in accordance with local regulations.
WARRANTY
The N2analyzer is designed for nitrogen delivery equipment and systems. Under normal operating
conditions, Maxtec warrants the N2analyzer to be free from defects of workmanship or materials
for a period of 2-years from the date of shipment from Maxtec, provided that the unit is properly
operated and maintained in accordance with Maxtec’s operating instructions. Based on Maxtec’s
product evaluation, Maxtec's sole obligation under the foregoing warranty is limited to making
replacements, repairs, or issuing credit for equipment found to be defective. This warranty extends
only to the buyer purchasing the equipment directly. Maxtec's sole obligation under the foregoing
warranty is limited to making replacements, repairs, or issuing credit for equipment found to be
defective. This warranty extends only to the buyer purchasing the equipment directly from Maxtec
through Maxtec's designed distributors and agents as new equipment.
Maxtec warrants the oxygen sensor in the N2analyzer to be free from defects in material and
workmanship for a period of 2-years for Nitrogen A & AE and 1-year for Nitrogen A Fast from
Maxtec's date of shipment in a N2analyzer. Should a sensor fail prematurely, the replacement
sensor is warranted for the remainder of the original sensor warranty period.
Routine maintenance items, such as batteries, are excluded from warranty. Maxtec and any other
subsidiaries shall not be liable to the purchaser or other persons for incidental or consequential
damages or equipment that has been subject to abuse, misuse, mis-application, alteration,
negligence or accident.
These warranties are exclusive and in lieu of all other warranties, expressed or implied,
including warranty of merchantability and tness for a particular purpose.
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PREFACE
This manual describes the function, operation and maintenance of the
N2analyzer hand-held and panel mount nitrogen analyzers. The Maxtec
N2analyzer is engineered for long life, maximum reliability and stable
performance.
NOTE: In order to obtain optimum performance from your analyzer,
all operation and maintenance must be performed in accordance
with this manual. Please read the manual thoroughly before using
the analyzer and do not attempt any repair or procedure that is not
described herein. Maxtec cannot warrant any damage resulting
from misuse, unauthorized repair or improper maintenance of the
instrument.
WARNING:
Never allow an excess length of tubing, lanyard, or sensor cable near a
person’s head or neck, which may result in strangulation.
Before use, all individuals who will be using the N2analyzer must become
thoroughly familiar with the information contained in this Operation Manual.
Strict adherence to the operating instructions is necessary for safe, effective
product performance. This product will perform only as designed if installed
and operated in accordance with the manufacturer’s operating instructions.
Use only genuine Maxtec accessories and replacement parts. Failure to do
so may seriously impair the analyzer’s performance. Repair of this equipment
must be performed by a qualied serice technician experienced in repair of
portable hand held medical equipment.
Calibrate the N2analyzer weekly when in operation, or if environmental
conditions change signicantly. (ie. Elevation, Temperature, Pressure,
Humidity — refer to Section 3.0 of this manual).
Use of the N2 analyzer near devices that generate electrical elds may cause
erratic readings.
If the N2analyzer is ever exposed to liquids (from spills or immersion) or to
any other physical abuse, turn the instrument OFF and then ON. This will
allow the unit to go through its self test to assure everything is operating
correctly. You may need to allow the sensor time to dry out.
Never immerse or expose the N2analyzer (including sensor) to high
temperatures (>70°C). Never expose the device to pressure, irradiation
vacuum, steam, or chemicals.
!
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»Replace the batteries with recognized high quality AA Alkaline or Lithium batteries.
»If the unit is going to be stored (not in use for 1 month), we recommend that you remove the
batteries to protect the unit from potential battery leakage.
FAILURE TO COMPLY WITH THESE WARNINGS AND CAUTIONS COULD RESULT IN INSTRUMENT
DAMAGE AND POSSIBLY JEOPARDIZE THE WELL BEING OF THE USER.
iv WWW.MAXTEC.COM
CAL
BAT
Warning
On/off Button
Calibration Button
Low Battery
Percent
Meets ETL standards
Do not throw away. Follow local
guidelines for disposal.
Calibration required
%
EC REP Authorized Representative
in the European Community
LOT
SN
Lot code/Batch code
Serial Number
REF Catalog Number
Manufacturer
Follow instructions for use.
1.2 SAFETY LABELING
The following symbols and safety labels are found on the N2Analyzer:
!
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TABLE OF CONTENTS
Classication.................................................... I
Warranty........................................................ I
Warnings .......................................................II
1.0 SYSTEM OVERVIEW.............................................1
1.1 Base Unit Description..........................................1
1.2 Component Identication.......................................2
1.3 Component Description ........................................2
1.4 Oxygen Sensor ...............................................3
2.0 OPERATING INSTRUCTIONS ......................................3
2.1 Getting Started ...............................................3
2.1.1 Protect Tape ..............................................3
2.1.2 Automatic Calibration ......................................3
2.2 Calibrating the N2Analyzer .....................................4
2.3 Operation with the Flow Restrictor ...............................4
3.0 FACTORS INFLUENCING ACCURATE READINGS .....................5
3.1 Elevation Changes ............................................5
3.2 Temperature Effects ...........................................5
3.3 Pressure Effects ..............................................5
3.4 Humidity Effects ..............................................6
4.0 CALIBRATION ERRORS AND ERROR CODES ........................6
5.0 CHANGING THE BATTERIES ......................................7
6.0 CHANGING THE OXYGEN SENSOR ................................8
6.1 R217P65.......................................................8
6.2 R217P66.......................................................9
7.0 CLEANING AND MAINTENANCE ..................................10
8.0 SPECIFICATIONS ..............................................11
8.1 Base Unit Specications ........................................11
8.2 Sensor Specications ..........................................11
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1.0 SYSTEM OVERVIEW
1.1 Base Unit Description
The N2analyzer provides unparalleled performance and reliability
due to an advanced design that includes the following features and
operational benets.
»Extra-life oxygen sensor of approximately 1,500,000 O2percent
hours
(2-year warranty).
»Durable, compact design that permits comfortable, hand-held
operation and easy to clean.
»Operation using only two AA Alkaline batteries (2 x 1.5 Volts) for
approximately 5000 hours of performance with continuous use. For
extra extended long life, two AA Lithium batteries may be used.
» Oxygen-specic, galvanic sensor that achieves 90% of nal value in
approximately 15 seconds at room temperature.
»Large, easy-to-read, 3 1/2-digit LCD display for readings in the
0-100% range.
»Simple operation and easy one-key calibration.
»Self-diagnostic check of analog and microprocessor circuitry.
»Low battery indication.
»Calibration reminder timer that alerts the operator, using a
calibration icon on the LCD display, to perform a unit calibration.
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1.2 Component Identication
1.3 Component Description
1 3 1/2-Digit Display - The 3 1/2 digit liquid crystal display (LCD)
provides direct readout of nitrogen concentrations in the range
of 0 - 105.0% (100.1% - 105.0% used for calibration determination
purposes). The digits also display error codes and calibration
codes as necessary.
2Low Battery Indicator - The low battery indicator is located at
the top of the display and is only activated when the voltage on
the batteries is below a normal operating level.
3“%” Symbol - The “%” sign is located to the right of the
concentration number and is present during normal operation.
4Calibration Symbol CAL - The calibration symbol is located at the
bottom of the display and is timed to activate when a calibration
is necessary.
5ON/OFF Key - This key is used to turn the device on or off.
6Calibration Key - This key is used to calibrate the device.
Holding the key for more than three seconds will force the device
to enter a calibration mode.
CAUTION: The device will assume a percent oxygen concentration when calibrating. Be
sure to apply 100% oxygen, or ambient air concentration to the device during calibration or the
device will not calibrate correctly.
Sample Inlet Connection - This is the port at which the device is
connected to determine oxygen concentration.
1
LCD Display
2
3
4
5
6
FIGURE 1
Keypad
Sample Inlet Connection
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