wilks InfraRan User manual
InfraRan is a trademark of Wilks Enterprise, Inc.
Copyright, 2004-2008 Wilks Enterprise, Inc. Norwalk, Ct. USA
Wilks Enterprise Inc InfraRan Instruction Manual
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Table of Contents:
1.0 INFRARAN SPECIFIC VAPOR ANALYZER OVERVIEW.................................................................. 3
2.0 INSTALLATION .............................................................................................................................. 3
2.1 ANALYZER CHECK....................................................................................................................... 3
2.2 CHARGING THE BATTERY........................................................................................................... 3
2.3 CLEANING THE INSTRUMENT..................................................................................................... 4
3.0 THEORY OF OPERATION.................................................................................................................. 4
4.0 INSTRUMENT WARMUP .................................................................................................................... 5
5.0 ANALYZER PORT FITTINGS.............................................................................................................. 7
6.0 INSTRUMENT SHOULDER STRAP .................................................................................................. 8
7.0 KEYPAD OPERATIONS................................................................................................................. 9
7.1 DATA ENTRY KEYPAD ...................................................................................................................... 9
7.2 SOFTKEY MENU OPERATIONS MAP............................................................................................ 10
7.2.1 TOP MENU :.................................................................................................................................. 10
7.2.2 ANALYZE MENU :........................................................................................................................... 10
7.2.3 RUN MENU:.................................................................................................................................... 11
7.3 FILES MENU :.................................................................................................................................... 12
7.4 SETUP MENU :................................................................................................................................. 12
7.4.1 DIAG MENU :.................................................................................................................................. 13
7.4.2 CLOCK MENU :............................................................................................................................. 14
7.43 ANALYSIS MENU :......................................................................................................................... 14
7.4.4 LOG MENU :.................................................................................................................................. 15
7.5 CALIBRATE MENU :......................................................................................................................... 15
7.6 DOWNLOAD MENU :....................................................................................................................... 16
7.7 CONTROL MENU :........................................................................................................................... 17
8.0 ANALYSIS MODES :........................................................................................................................ 18
8.1 NORMAL ( ANALYSIS ) MODE ....................................................................................................... 18
8.2 FAST ( SURVEY ) MODE................................................................................................................ 18
9.0 DISPLAY OPERATIONS :................................................................................................................. 18
9.1 SYSTEM INDICATOR................................................................................................................... 18
9.2 DISPLAY MODES......................................................................................................................... 18
10.0 POWER SOURCES :....................................................................................................................... 19
11.0 QUICK START INSTRUCTIONS :................................................................................................ 19
12.0 USB DRIVER INSTALLATION :...................................................................................................... 19
13.0 USB PORT OPERATION TEST ...................................................................................................... 21
14.0 DOWNLOADING DATA WITH RS-232/USB .................................................................................. 21
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14.1 USING WINDOWS HYPERTERMINAL PROGRAM :..................................................................... 21
14.2 USING THE EXCEL SPREADSHEET DOWNLOAD :................................................................... 22
15.0 SERIAL DATA OUTPUT : ............................................................................................................... 25
16.0 INPUT/OUTPUT AND POWER CONNECTORS :........................................................................... 26
17.0 BATTERY REMOVAL : ................................................................................................................... 27
18.0 OPTIONAL ACCESSORIES :.......................................................................................................... 28
18.1 ANALOG OUTPUT :........................................................................................................................ 28
19.0 SPECIFICATIONS :......................................................................................................................... 29
20.0 TROUBLESHOOTING..................................................................................................................... 30
21.0 SERVICE AND CUSTOMER SUPPORT :...................................................................................... 32
FIGURE 1INFRARAN OPTICAL SYSTEM WITH 16CM CELL ................................................................4
FIGURE 2INFRARAN OPTICAL SYTEM WITH 6M CELL ....................................................................5
FIGURE 3INFRARAN CONTROLS AND CONNECTIONS......................................................................6
FIGURE 4INFRARAN GAS PORT FITTINGS......................................................................................7
FIGURE 5INFRARAN KEYPAD AND DISPLAY....................................................................................9
FIGURE 6EXCEL SPREADSHEET DOWNLOAD SCREEN....................................................................23
FIGURE 7EXCEL SPREADSHEET DOWNLOAD COM PORT SETTING ................................................23
FIGURE 8ANALYZER CONNECTIONS .............................................................................................26
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1.0 InfraRan Specific Vapor Analyzer Overview
The InfraRan Specific Vapor Analyzer measures a particular gas or vapor in air at the parts per
million (ppm) level by infrared absorption.
The gas or vapor absorbs infrared energy at specific wavelengths and the amount of
energy absorbed is proportional to the gas concentration. The analyzer is calibrated to read out
directly in the desired units.
The analyzer has a rechargeable internal battery pack with a 7 – 8 hr run time. It may also be run
from 100 – 250 VAC 50/60 Hz using the charger/power supply.
2.0 Installation
2.1 Analyzer Check
When the instrument is received examine the container for damage.
unpack the container and check its contents:
1 - InfraRan Analyzer
1 - Charger - AC Adapter – InfraRan Interconnect Cable
1 - Sampling Hose & Particulate Filer
1 - Zero Filter Assembly
1 - Package of 2 zero filters
1 - Set of Inlet/Outlet Fittings
1 - Power Cord
1 - USB Cable
1 - Instruction Manual
1 - Driver/Utilities CD
1 - Wand Clip
2.2 Charging the Battery
After unpacking, the InfraRan Analyzer should be placed on the charger overnight.
1) Connect charger to charger port on instrument
2) Charge at least 12 hours
3) The battery charger is a “smart charger” that will not overcharge the battery.
4) Explanation of indicator lights is given on the charger.
Please Note:
The battery should be substantially discharged before recharging to avoid
developing memory in the battery that will reduce its capacity.
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2.3 Cleaning the Instrument
Use damp soapy rag. NO SOLVENT!
Do not attempt to clean the gas cell. If the cell has become fouled it will need to be
returned to Wilks Enterprise for replacement.
3.0 Theory Of Operation
The InfraRan Specific Vapor Analyzer is an infrared based analyzer. The diagrams
below, Figures 1 & 2, illustrate the theory of operation. A broad-band, pulsed
infrared source produces IR energy in the wavelength range from 2 to 5 microns.
This source is placed so as to illuminate the entrance window of a tubular, single
pass transmission cell or a folded path, multipass cell. A portion of the energy is
absorbed by the sample.
The infrared beam passes through an exit window, then through an optical filter
that selects the wavelength required for the analysis. The energy of the selected
wavelength illuminates a detector that converts it to an electrical signal proportional
to the intensity.
This signal is processed by a microcomputer that converts it to a real-time display,
of the gas concentration in parts per million (ppm). In addition to the display both
the original detector signal(s) and the calculated concentrations are transmitted as
an ASCII string through an RS-232 serial or USB port.
Figure 1 InfraRan Optical System with 16cm cell
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Figure 2 InfraRan Optical Sytem with 6m cell
4.0 Instrument Warmup
For a typical instrument warmup, the InfraRan should be run with the pump on for
a minimum of 30 minutes for the most stable zero prior to making measurements.
Even though the signal continues to vary significantly for approximately 4 more hours,
the detector voltage varies approximately linearly with temperature during the warm
up period.
The linear fit should not be counted as being appropriate for a long time. Each time the
InfraRan zero is determined ( after rezeroing ), a new temperature origin is recorded
and the compensation is applied from that point on ( until the next zero cycle ).
The InfraRan can be used sooner, in the fast response mode for making spot checks.
The accuracy and stability of the zero of the instrument is greatly reduced, but will
indicate points of leaks.
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Figure 3 InFraRan Controls and Connections
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5.0 Analyzer Port Fittings
Inlet/Outlet Fittings:
The inlet fitting will accept the sample wand fitting and the fitting on the zero filter holder.
The outlet fitting is to reduce noise exiting the gas port block. And can be used to attach
a exhaust tube to the analyzer if the user wishes to purge the gas from the test area.
All fittings to the gas analyzer are standard 1/4 NPT ports.
Please Note:
If an analyzer is to be attached to long lengths of tubing for the inlet and outlet, it is
advised that an external pump be used.
It is not recommended that an external pump be attached to the internal pump as this
may cause pressure or a vacuum differential that could effect the readings or cause a
seal to fail.
Contact Wilks Enterprise if an external pump is needed, in that case a analyzer without
a internal pump can be supplied.
Reducing Pump Outlet Noise:
Additional quieting of the pump output may be required for applications in hospitals or
locations where the noise of the outlet pump port may be a problem.
A particulate filter, such as the type found on the sample wand can be attached to the
outlet with a short length of tubing.
Figure 4 InfraRan Gas Port Fittings
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6.0 Instrument Shoulder Strap
The shoulder strap supplied with the instrument is rated for greater weight capacity than
the total weight of the InfraRan gas analyzer and should provide safe carrying of the
InfraRan for the lifetime of the instrument.
Care should be taken to ensure that the strap is in good condition and properly used.
Occasionally check the strap hooks for cracks, and that the metal safety clip is intact
and properly operating.
Check the strap itself for tears and stitching that is coming loose.
If there is any doubt about the condition of the strap, it should be replaced.
The strap hook is latched to The clip loop is correctly
the safety clips slot and may engaged by the strap clip and
release upon lifting the analyzer. the safety clip is in it’s slot.
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7.0 Keypad Operations
7.1 Data Entry Keypad
“ENTER” accepts the current selection and advances to the next item or if there are
no more items, exits to the next higher menu level.
“CLEAR” erases data entered in user fields.
The down arrow returns to the previous menu item.
The up arrow forwards to the next menu item.
The right arrow enters a space.
Keypad Backlight (option) This button by default selects Survey (fast) or
Analyze (normal) mode. The Survey (fast) mode allows for a rapid scan
With much higher instrument noise. For leak detection, this will give the
fastest response. Selection of the response mode is available after RUN
is selected in the ANALYZE menu.
The display will indicate that Survey (fast) mode selected.
Figure 5 InfraRan Keypad and Display
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