wilks InfraRan User manual

InfraRan is a trademark of Wilks Enterprise, Inc.
Copyright, 2004-2008 Wilks Enterprise, Inc. Norwalk, Ct. USA

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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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7.2 Softkey Menu Operations Map
7.2.1 Top Menu :
The top menu display is shown below.
7.2.2 Analyze Menu :
REZERO Prompts user " INSTALL ZERO FILTER ".
Press ZERO Softkey.
Timer countdown 30 seconds to introduce fresh air.
Timer countdown 30 seconds to zero instrument.
Display zero voltage of detector.
RUN Prompts user " INSTALL PARTICULATE FILTER ".
Press RUN softkey.
Timer countdown 30 seconds to introduce sample air.
Analyzer continues into run mode.

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LOCATION Input site location names for the log report with the
data entry keypad.
Multiple locations can be entered by pressing the
up or down arrow keys.
Pressing ENTER at any of the location numbers exits the
location entry menu.
ESCAPE Returns to prior menu.
Note: Defined locations cannot be changed unless the current file is empty.
See section 5.3 for erase functions.
7.2.3 Run Menu:
LOG ON Toggles logging operations, LOG ON indicates that the logging
operation is currently off. Pressing LOG ON will change the softkey
to LOG OFF and display a LOG ON indication on the top left
of the display.
Pressing the LOG OFF softkey toggles the logging functions off
and turns off the LOG ON indicator on the display.
See section 5.4.4 for additional logging functions.
CONTROL Toggles pump and alarm on/off conditions. ( note : the pump and
alarm functions are toggled on/off for the current run. Starting a
new run resets these functions to their normal defaults as set
in section 5.7 ).
Displays battery condition at time of key press.
See section 7 for display mode definitions on display alarms.

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7.3 Files Menu :
NEW Enter file name with the alpha numeric keypad.
Press CLEAR to delete current file name.
Press ENTER to accept changes.
ERASE Prompts user to delete file, press ENTER key to erase data
in current file.
ESCAPE cancels erase operation.
ESCAPE Returns to prior menu.
7.4 Setup Menu :
DIAG Diagnostic menu. Allows user to check current calibration by
injecting a calibrated gas standard.
Dislpays system energy and gain number.
CLOCK Set system time and date.

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ANALYSIS Global settings for the log functions and audible alarm high/low
toggles on or off.
Sets system display.
CALIBRATE Settings containing information on current calibrated gas(s).
ESCAPE Returns to prior menu.
7.4.1 Diag Menu :
VERIFY Prompts calibration standard concentration.
Press ENTER to start verification.
Prompts user to inject standard gas, press RUN to continue.
Press ESCAPE at any time to cancel.
ENERGY Prompts user to install zero filter.
Press begin softkey to continue.
ESCAPE Returns to prior menu

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7.4.2 Clock Menu :
DATE Set Year - Month - Date with keys on keypad.
TIME Set Hour - Minute - Second with keys on keypad.
ESCAPE Returns to prior menu.
7.43 Analysis Menu :
LOG Settings for logging functions on/off status , mode and interval.
DISPLAY Display selection for concentration, %T, and ABS.
ESCAPE Returns to prior menu.

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7.4.4 Log Menu :
STATUS Global selection to turn logging function on/off.
Selectable log interval, 1 second to 1 minute using on
keypad.
MODE Select Continuous or Single logging mode.
INTERVAL Selectable by on keypad from 1 second to 1 minute.
ESCAPE Returns to prior menu.
Note : The analyzer does not average readings over the time period set in
interval. Instead the analyzer will take a snapshot of the concentration
displayed at the interval set point.
7.5 Calibrate Menu :
EDIT Step thru calibration values with the ENTER key on the keypad.
To change values, press CLEAR to erase current value and
enter new values thru the alpha numeric keypad. Press ENTER
to accept the new values.

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SEL GAS Using on keypad step thru gases available and press
ENTER to select gas for measurement. ( This menu item is
available on multi gas analyzers only ).
ESCAPE Returns to prior menu.
Calibration Values: Name Factory Set
Precision # User Select
y0 # Factory Set
y1 # Factory Set
alpha1 # Factory Set
alpha2 # Factory Set
k # Factory Set
Range # Factory Set
Scale Factor # Factory Set
Temp Comp # Factory Set
High Alarm # User Select
Low Alarm # User Select
ID Number # User Select
When all the calibration values have been entered or after the
last item has been selected with the ENTER key, the menu will
proceed to the prior menu and SAVING CHANGES.... should
be visible on the display.
7.6 Download Menu :
FILE Selecting FILE allows the user to download the current log
file to the host computer.
Press ENTER to download file, ESCAPE cancels operation.
ESCAPE Returns to prior menu.

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7.7 Control Menu :
PUMP Toggles analyzer pump on or off.
ALARM Toggles alarms on or off.
BATTERY Displays percent of charge on analyzer battery.
BRIGHT Selectable display brightness from 25% to 100%.
( set to 25% for best battery life )
ESCAPE Returns to prior menu.
Note : Setting the pump or alarms either on or off, effects their operation at all
times. If the pump or alarms are turned off, they will not operate until they
are turned on in RUN mode using the CONTROL softkey.

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8.0 Analysis Modes :
8.1 Normal ( Analysis ) Mode
In normal analysis mode, reported data are the result of a rolling average of 16
measured values over a period of about 24 seconds. The display is updated at
each data point. The value will lag the sample concentration by a few seconds
but noise will be reduced.
8.2 Fast ( Survey ) Mode
Fast mode is entered and exited by pressing the light bulb button on the lower
right corner of the keypad. The display shows “Fast Response” when this mode
is enabled.
The fast mode is intended for detecting leaks or “hot” spots. The measurements
are not signal averaged. In this mode the display is considerably noisier than
in the normal mode but response is faster.
9.0 Display Operations :
9.1 System Indicator
LOW BAT warning appears in the indicator area when the battery is low
and will soon require a charge.
9.2 Display Modes
The concentration display changes depending on the relationship between the
measured concentration and the control parameters.
Concentration in normal range Normal Display
Concentration above alarm level Flashing Display
Concentration above Calibrated Range Inverted Display
Concentration above Mathematical Range Asterisks replace digits

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10.0 Power Sources :
When changing the power source from battery to mains power or the reverse, the
instrument zero should always be redetermined.
11.0 Quick Start Instructions :
1. Turn on power (allow 30 minute warm up)
2. Select Control - Select (Battery) Check Battery Status
3. Select Analyze - Select (Rezero) Prompt to Install Zero Filter
Hit (Zero) Count Down 30 seconds
4. Select Run - Prompt to Install Particulate Filter
Hit (Run) Count Down 30 seconds
YOU ARE READY TO SAMPLE!
12.0 USB Driver Installation :
1. Plug in the USB cable from the host computer to the InfraRan USB mini B port.
2. The host computer will come up with a dialog box, noting that it has found new
hardware and asking where to find the driver.
Place the driver/utilities CD into the host computer CDROM drive and continue
with the driver installation by directing the Windows driver dialog box to the driver
directory on the CDROM ( Please note : Windows XP has the proper driver included
in the operating system, so the driver CD should not be needed for the USB
installation ).
3. After the installation of the driver, confirm that a new COM port has been added to
the host computer.