SAMPLINK™
Contents
1. IDH 234 14 14 19 APR 02 continued k k k SAMPLING RESULTS Program Started at 9 02 19 APR 02 1752 15 T 11 02 19 APR 673 Nominal Sample Volume 400 ml 2 2 15 T 11 06 19 APR 673 di a2 16 T 11 10 19 APR 671 S 2 2 16 T 11 14 19 APR 673 1 2 17 T 11 18 19 APR 673 U R 2 2 17 T 11 22 19 APR 673 R R COUNT 14 2 18 T 11 26 19 APR 673 c TO 2 2 18 T 11 30 19 APR 673 SAMPLE BOTTLE E R TIME DATE LIQUID 1 2 19 T 11 34 19 APR 673 23 2 19 T 11 38 19 APR 673 1 S 9 04 19 APR 615 1 112 20 T 11 42 19 APR 668 Program Halted at 9 05 19 APR 2 2 20 T 11 46 19 APR 673 Program Resumed at 9 06 19 APR 1 2 21 T 11 50 19 APR 673 2 2 1 T 9 08 19 APR 669 2 2 21 T 11 54 19 APR 673 Program Halted at 9 10 19 APR 34 72 22 T 11 58 19 APR 668 Program Resumed at 9 10 19 APR 2 2 22 ak 12 02 19 APR 673 1 2 2 T S 9 12 19 APR 0 Dig 2 23 T 12 06 19 APR 673 Program Halted at 9 12 19 APR 2 2 23 T 12 10 19 APR 646 Program Resumed at 9 12 19 APR 1 2 24 T 12 14 19 APR 602 2 2 2 9 16 19 APR 610 Program Halted at 12 16 19 APR 1 2 3 T 9 20 19 APR 607 Program Resumed at 12 18 19 APR 2 2 3 T 9 24 19 APR 609 2 2 24 R PJ 12 18 19 APR 0 1 2 4 T 9 28 19 APR 609 Program Finished at 12 21 19 APR 2 2 4 T 9 32 19 APR 609 ae 5 T S 9 36 19 APR 0 SOURCE T TIME Program Halted at 9 36 19 APR SOURCE 5 gt START Program Resumed at 9 36 19 APR SOURCE R gt RESUME 2 2 5 T 9 40 19 APR 627 SOURCE2. 1 3 1 2 2 Software Hardware Configurations 1 3 1 2 3 Interrogation Cable Requirements 1 4 1 3 Installation and 1 5 1 3 1 Installation ici eave 2 20 ORLA VERRE IE ERE 1 5 1 8 2 Running SAMPLINK 1 1 5 1 8 8 Retrieving Sampler Data 1 6 1 3 4 Printing the Text File 1 9 1 3 5 Reading the 3700 Series Sampler Text File Reports 1 9 1 3 6 Reading RTD 581 and 6700 Series Sampler Text File Reports 1 11 1 3 7 SAMPLINK File Names 1 15 1 3 8 Error Messages di rd Pre ke a nenn le nn ehe 1 17 1 4 Technical Information 0 0 0 0 ccc ehh 1 19 1 4 1 Byte Level Description of Dataset Header and Data Files 1 19 A 1 Safety A 1 A 2 General Safety Procedures 0 0 ccc eee A 1 Lethal Atmospheres in Sewers A 4 List of Figures 1 1 Example of Text File Reports for 3700 Series Sampler 1 2 1 2 Connecting a Laptop Computer to the Sampler 1 4 1 3 SAMPLINK Title Screen 1 6 1 4 Viewing Data 3700
3. E gt ENABLE 152 6 T 9 44 19 APR 627 SOURCE D gt DISABLE 2 2 6 T 9 48 19 APR 625 ERROR 5 gt PUMP STOP KEY HIT 1 2 7 T 9 52 19 APR 620 ERROR PJ gt PUMP JAMMED 2 2 7 T 9 56 19 APR 625 ERROR NM gt NO MORE LIQUID Sampler Disabled at 10 00 19 APR 1 2 8 D 10 00 19 APR 610 Sampler Enabled at 10 10 19 APR 2 2 8 E NM 10 10 19 APR 610 154 2 9 T NM 10 14 19 APR 610 2 2 9 T 10 18 19 APR 673 Mead 10 T 10 22 19 APR 673 2 2 10 T 10 26 19 APR 673 1 2 11 T 10 30 19 APR 673 2 2 11 T 10 34 19 APR 673 15 2 12 T 10 38 19 APR 673 252 12 T 10 42 19 APR 673 quy 2 13 T 10 46 19 APR 673 2 2 13 T 10 50 19 APR 673 1 2 14 T 10 54 19 APR 673 2 2 14 T 10 58 19 APR 673 Figure 1 9 The Results Report 1 3 7 SAMPLINK File Names Samplink Section 1 Samplink Instructions SAMPLINK creates files in two formats an ASCII text file which contains the settings and results reports and a dataset which contains a pair of linked files The sampler dataset contains the same sample event data sample event times and bottle numbers included in a sampler dataset retrieved from an Isco flow meter The dataset consists of a header file and a data file The header file contains the sampler ID a letter which indicates the source of the data the source type and name the date and time of the most recent reading and the number of readings The data file contains only readings the sample event time and date and th
4. It is the number of minutes that have elapsed since 1 1 77 00 00 The fifth byte of the reading is an unsigned character containing the sample event s bottle number Header file HDR The header file is made up of a minimum of 5 records of 32 bytes Record 0 byte 0 unit type set to 1 byte 1 partition number 0 1 2 for partition A B C byte 2 data type O time data 1 event data byte 3 data width 5 samples 2 other data bytes 4 5 integer current software version byte 7 partition type O level 1 sampler 2 rainfall 323240 flow byte 8 rainfall units of mea Ozinch 1 mm sure rest of record unused Record 1 Record 2 Unused Record 3 Records 4 and above One record for each interrogation byte 0 length of description set to 27 bytes 1 17 unit description bytes 18 27 partition name rest of record unused bytes 0 1 integer site I D 000 999 bytes 2 5 long integer iscodate date and time of first reading bytes 6 7 integer data interval 1 5 10 30 60 or 120 minutes bytes 8 11 long integer last cell number bytes 12 13 integer level factor 3048 feet 1000 meters bytes 14 17 long integer date and time of last reading rest of record unused bytes 0 3 iscodate date and time of first reading bytes 4 7 iscodate date and time of last reading rest of record unused Samplink Section 1 Samplink Instruc
5. the customer will pay to return the instrument to Isco and Isco will pay surface transportation to return the repaired instrument to the customer Isco will not pay air freight or customer s packing and crating charges The warranty for any instrument is the one in effect on date of shipment Warranty period begins on the shipping date unless Isco agrees in writing to a different date Excluded from this warranty are normal wear expendable items such as charts ribbon tubing and glassware and damage due to corrosion misuse accident or lack of proper maintenance This warranty does not cover Isco on line Process Analyzers and certain Isco SFE instruments which are covered under different warranty terms nor does it cover products not sold under the Isco trademark or for which any other warranty is specifically stated in sales literature This warranty is expressly in lieu of all other warranties and obligations and Isco specifically disclaims any warranty of merchantabihty or fitness for a particular purpose Any changes in this warranty must be in writing and signed by a corporate officer The warrantor is Isco Inc 4700 Superior Lincoln NE 68504 U S A This warranty applies to USA customers Customers in other countries should contact their Isco dealer for warranty service Before returning any instrument for repair please call fax or e mail the Isco service department for instructions Many problems can o
6. SELECT PORT 1 COM1 2 COM2 or Q to quit Figure 1 3 SAMPLINK Title Screen SAMPLINK will display HOLDING FOR DATA PLEASE WAIT for several seconds as it checks the serial port and cable connections Then it will display the contents of the files in a formatted report twenty lines at a time The sampler status is displayed first then the program settings followed by the sampling results Figures 1 4 and 1 5 show examples of the first twenty lines of data for different configurations Samplink Section 1 Samplink Instructions IDs 792 11 02 4 AUG 02 RRARARARA RAR SAMPLER STATUS xxx PROGRAM HALTED 11 02 44 4 AUG 02 doeeieieeeeioeck PROGRAM SETTINGS xxx TIME MODE 10 ml SAMPLES FIRST SAMPLER AT START TIME Press N key for next page C to scroll continously Figure 1 4 Viewing Data 3700 Series Sampler SAMPLER ID XXXXXXXXXX 15 30 3 AUG 02 AREA A RAR PROGRAM SETTINGS xs PROGRAM NAME EXTENDED 1 SITE DESCRIPTION FACTORY UNITS SELECTED LENGTH ft 1 MINUTE DATA INTERVAL Press N key for next page C to scroll continously Model 6700 HW Rev XX SW Rev XX XX ID XXXXXXXXXX Figure 1 5 Viewing Data 6700 Series Sampler and RTD 581 Press the N for next key to view the next twenty lines of the display Each time you press N SAMPLINK will present another page of data Even if you make no response SAMPLINK will continue to retrieve the data If you want to scroll thro
7. Series Sampler 1 7 1 5 Viewing Data 6700 Series Sampler and RTD 581 1 7 1 6 Data Received 3700 Series Sampler 1 8 1 7 All Data Received 6700 Series Sampler and RTD 581 1 9 1 8 Interpreting the Results Report 1 13 1 9 The Results Report aa 1 14 List of Tables 1 1 Results Report Samples Bottle Sources and Error Codes 1 12 Samplink Table of Contents This page intentionally left blank SAMPLINK TE Section 1 SAMPLINK Instructions 1 1 Introduction This manual shows you how to install and operate SAMPLINK software Isco 3700 Series Samplers store program settings and sampling routines in internal memory 6700 Series Samplers and RTD 581 Rapid Transfer Devices have similar storage capabilities SAMPLINK collects the data directly from the instrument and stores that data on the computer SAMPLINK formats the sampler data into an ASCII text file Versions 2 and 3 of Isco s FLOWLINK can read SAMPLINK s files SAMPLINK is NOT compatible with Version 4 of FLOWLINK You can edit and print the text files with a word processor or use DOS printing commands to print the file without editing it The text file records the following information the sampler s status at the time the data was retrieved e a list of program settings sample event times and d
8. T gt TIME SOURCE S gt START Figure 1 1 Example of Text File Reports for 3700 Series Sampler Samplink Section 1 Samplink Instructions SAMPLINK creates sampler data files that are identical to those created by Isco s FLOWLINK software when it retrieves sample event data from an Isco flow meter SAMPLINK is compatible with any 3700 Series Sampler fitted with a printer connector The printer connector is on the back of the sampler s control box and is labeled with a printer icon SAMPLINK is also compatible with Isco s RTD 581 and 6700 Series Samplers including the 6712 GLS GSS and Glacier 1 2 Installation Checklist Use this checklist when you install SAMPLINK Check the contents of your SAMPLINK software package Your package should contain a The SAMPLINK Instruction Manual this manual b An envelope containing a high density 3 1 2 inch program disk Register your software refer to Section 1 2 1 Check the hardware requirements Section 1 2 2 nstall the software on your computer Installation instructions are in Section 1 3 1 2 1 Registering SAMPLINK Registration insures your access to customer support and future software revisions Please register your copy of SAMPLINK by completing the registration sheet in the front of this manual Promptly return the sheet to Isco 1 2 2 Software Hardware SAMPLINK is a DOS program that will run on an IBM PC or Configurations compatible computer Bec
9. but also from swamps and from hot springs In one resort area at least five persons died from H2S poisoning before the peo ple were ready to admit that H2S is not a therapeutic agent Hardly a year passes in the U S without a sewer fatality from H S as well as deaths elsewhere in the world The presence of HS in a sewer atmosphere is easily determined A bellows and ampoule type of tester is very satisfactory for the pur pose even though it is only crudely quantitative When using a tester of this type do not bring the air to the ampoule by way of a tube as this may change the H S concentration Hang the ampoule in the air to be tested with a suction tube to the bulb or bellows Lead acetate paper is very useful as a qualitative indicator It cannot be used to estimate the amount of sulfide but it will quickly turn black in an atmosphere containing only a tenth of a lethal concentra tion Electrodes or other similar electrical indicating devices for H2S in the air have been marketed Some of them are known to be unreliable and we know of none that have proved dependable Do not use one unless you check it at frequent intervals against air containing known H2S concentrations A supposed safety device that is unreli able is worse than none at all Remember that the nose fails too when it comes to sensing dan gerous concentrations of H2S Various other toxic gases have been mentioned in some publica tions It is unlikely that a
10. hat Wear coveralls or removable outer garment which can readily be removed when the work is completed Wear boots or nonsparking safety shoes Wear rubberized or waterproof gloves Wear a safety harness with a stout rope attached Do not smoke Avoid touching yourself above the collar until you have cleaned your hands 9 Emergencies Every member of the crew should be instructed on procedures to be followed in cases of an emergency It is the duty of each crew chief to have a list of emergency phone numbers includ ing the nearest hospital and ambulance service police precinct fire station and rescue or general emergency number 10 Field Equipment The following will be available for use Blowers Harnesses Breathing Apparatus Manhole Irons Coveralls Mirrors Emergency Flashers Pick Axes First Aid Kits Rain Slickers Flashlights Ropes Gas Detectors Safety Vests Gas Masks Traffic Cones Gloves Waders Hard Hats A 3 Samplink Appendix A Safety Information Lethal Atmospheresin following is an article written by Dr Richard D Pomeroy Sewers and published in the October 1980 issue of Deeds Data of the WPCF Dr Pomeroy is particularly well known for his studies over a period of nearly 50 years in the field of the control of hydrogen sulfide and other odors in sewers and treatment plants He has personally worked in a great many functioning sewers In the earlier years he did so he admits
11. of Og Man can tolerate down to 12 Minimum safe 8 hour exposure 14 to 16 Below 10 dangerous to life Below 5 to 7 probably fatal Max naturally occur ring level is 0 04 ppm 0 05 ppm causes irri tation of eyes and nose 1 to 10 ppm causes headache nau sea can cause coma Symptoms similar to radiation damage Will not support life Inflammation of the eyes 400 to 500 ppm immediately fatal At 200 500 ppm head ache nausea bad taste lassitude Eye irritation Head ache dizziness nau sea irritation of the kidneys provided oxygen percent age is suf ficient for life At top increasing to certain depth Near top but may be found near bottom Near bottom Variable at dif No data Would vary widely with composition ferent levels Near bottom Near top of structure At bottom can combine with water to form sulfu rous acid At bottom At bottom Natural gas sludge gas manufactured gas sewer gas Strata of sedi mentary origin In swamps or marshes Sewer gas sludge gas Also issues from some rock strata Industrial wastes Common air pol lutant Oxygen deple tion from poor ventilation and absorption or chemical con sumption of oxy gen Where ozone is used for disin fection From digestion of sludge Industrial waste combus tion common air pollutant Solvent Solvent used in paint 1 Combu
12. starts down When two men climb at the same time the upper one can cause the lower one to fall by slipping or stepping on his fin gers 5 Traffic Protection In addition to traffic cones markers warning signs and barricades a vehicle or heavy piece of equipment should be placed between the working area and oncoming traffic Flashing warning signals should be used to alert drivers and pedestrians Orange safety vests should be worn by personnel stationed at the surface when the manhole is located in a vehicular traffic area 6 Falling Object All loose items should be kept away from the manhole opening This applies to hand tools as well as stones gravel and other objects 7 Removing the Covers Manhole covers should be removed with a properly designed hook Use of a pick ax screwdriver or small pry bar may result in injury A suitable tool can be made from 3 4 inch round or hex stock Two inches of one end should be bent at a right angle and the other end should be formed into a D handle wide enough to accommodate both hands Even with this tool care must be exercised to prevent the cover from being dropped on the toes The two inch projection should be inserted into one of the holes of the cover the handle grasped with both hands and the cover lifted by straightening the legs which have been slightly bent at the knees 8 Other Precautions Other precautions that should be taken when entering a manhole are Wear a hard
13. when SAMPLINK is unable to contact the sampler In most cases the cable connections are loose If the connections are snug check the sampler s battery The sampler may be unable to send data because it has no power Be sure to select the serial port to which the cable is connected Unable to open communications port SAMPLINK presents this message when the computer s serial port is not installed or is not working Check to see that the computer s COM port has been correctly installed in the computer and that all switches and jumpers are set correctly SAMPLINK will return to DOS after displaying this message Unable to save data File access error SAMPLINK is unable to open or write a file when saving data If you receive this message run the program again to force SAMPLINK to create a new file This message can also indicate a damaged or malfunctioning hard disk If you receive this message repeatedly for a hard disk have a qualified service technician check your hardware Unable to save data All file numbers already exist SAMPLINK can place up to 100 files with the same xxx file name segment in the same directory Copy the existing files to another directory before deleting the files in the SAMPLINK directory File names are discussed in section 1 3 7 Allocation error not enough memory aborting The computer does not have enough free memory available to run SAMPLINK This message may indicate that other software
14. PLER SHUT OFF The second section of the settings report appears under the heading PROGRAM SETTINGS It lists the following program settings pacing and volume e start time sample distribution sampling stops and resumes suction head The comments listed for each program setting vary with the sampling program For example the sampler stores sampling stop and resume times only when the sampler is configured for sampling stops and resumes It stores suction head settings when the sampler is configured for a manual suction head entry in the program sequence or when the liquid detector is disabled in the sampler s Liquid Detector configure option 1 3 6 Reading RTD 581 and 6700 Series Sampler Text File Reports Samplink Section 1 Samplinh Instructions Results Report The results include the time date and bottle numbers for each sample event the sample event source and any errors encountered during the routine A sample event source is the cause of the sample event the sample event may be initiated as one of the time paced or flow paced events required by the routine Other examples of sources are manual samples sample events initiated when the sampler is enabled or disabled or sample events initiated at start times Errors are conditions which cause missed samples for example a jammed pump or distributor The results report lists the sample event sources and errors as codes A key at the bottom of th
15. SAMPLINK Instruction Manual SAMPLER ID XXXXXXXXXX 15 3 xxxxxxxxxxxx PROGRAM SETTINGS PROGRAM NAME EXTENDED 1 SITE DESCRIPTION FACTORY UNITS SELECTED LENGTH ft 1 MINUTE DATA INTERVAL Press N key for next page C to scroll continously Model 6700 HW Rev XX SW Rev XX XX ID XXXXXXXXXX Part 60 3773 024 of Assembly 60 3774 015 Copyright 1991 2002 All rights reserved Isco Inc Revision G July 2002 O O FOREWORD This instruction manual is designed to help you gain a thorough understanding of the operation of the equipment Isco recommends that you read this manual com pletely before placing the equipment in service Although Isco designs reliability into all equipment there is always the possibility of a malfunction This manual may help in diagnosing and repairing the malfunc tion If the problem persists call or email the Isco Customer Service Department for assistance Contact information is provided below Simple difficulties can often be diagnosed over the phone If it is necessary to return the equipment to the factory for service please follow the shipping instructions provided by the Customer Ser vice Department including the use of the Return Authorization Number speci fied Be sure to include a note describing the malfunction This will aid in the prompt repair and return of the equipment Isco welcomes suggestions that would improve the information present
16. al port Note that you will use either cable 60 2544 044 or 60 2954 021 depending upon the sampler you have Extension Cable The 25 foot extension cable extends the distance between the sampler and the interrogator cable Samplers are often installed in manholes or other inacces sible places The extension cable connects to the installed sampler and is routed to a safer location The cable has a connector cap that protects the connector against moisture damage When installing the extension cable connect the extension cable to the sampler and connect the capped end of the cable to another extension cable or to the interrogator cable When data is to be retrieved from an RTD an RTD power cable must be used This cable combines an interrogator cable and power supply for the RTD The RTD power supply cable is Isco P N 60 9004 077 Attach the 6 pin connector to the sampler s connector Interrogator Cable Isco P N 60 2544 044 or P N 60 2954 021 gt GSS GLS Glacier 3700 Series Sampler Control Box 2 an ns Attach the 9 rectangular cable extends the distance connector to the laptop Extension Cable i between the interrogator computer s serial port Isco P N 60 3774 012 cable and the sampler You can chain up to two cables together Figure 1 2 Connecting a Laptop Computer to the Sampler 1 3 Installation and Operation 1 3 1 Installation 1 3 2 Running SAMPLINK Sampli
17. an SMP file extension It saves the dataset header with an HDR extension and the dataset data file with a DAT extension The chart below shows four examples of Sampler ID numbers and the file name created from the ID number The bold face characters indicate the characters used from the ID number and their location in the file name Sampler ID File Name SI000Fzz SMP 234 SI234Fzz SMP 2357 92 SI792Fzz SMP 25 SI025Fzz SMP Samplink Section 1 Samplink Instructions Note If you move the portable samplers from site to site you may prefer to assign each site a unique number Each time you select a sampler for installation at that site change its Sampler ID number so that the site number comprises the last three digits of the ID number This will allow you to collect data from the same site under similar dataset file names Sequence Numbers Sequence numbers the zz segment of the file name allow SAMPLINK to create separate files for samplers with the same ID number When SAMPLINK interrogates a sampler it searches the current directory for any file SMP DAT or HDR file with the dataset name that matches the ID segment starting with the dataset with the file sequence number 00 If SAMPLINK locates a file which matches both the ID segment and the sequence number it increments the sequence number by 1 and begins the search again When it is not able to find a matching file it saves the file with
18. angements for test equipment tools ventilating equipment protective clothing traf fic warning devices ladders safety harness and adequate number of personnel Hasty actions may result in serious injuries Time spent in the manhole should be kept to a minimum 3 Adverse Atmosphere Refer to the table on the following pages Before entering a manhole tests should be made for explosive atmosphere presence of hydrogen sulfide and oxygen deficiency Since combustible or toxic vapors may be heavier than air the tests on the atmosphere must be run at least of the way down the manhole Whenever adverse atmosphere is encountered forced ventilation must be used to create safe conditions After the ventilating equip ment has been operated for a few minutes the atmosphere in the manhole should be retested before anyone enters the manhole When explosive conditions are encountered the ventilating blower should be placed upwind to prevent igniting any gas that is emerg ing from the opening When a gasoline engine blower is used it must be located so that exhaust fumes cannot enter the manhole If testing equipment is not available the manhole should be assumed to contain an unsafe atmosphere and forced ventilation must be provided It should never be assumed that a manhole is safe just because there is no odor or the manhole has been entered previously 4 Entering Manholes Since the top of the manhole is usually flush with the sur
19. ates bottle numbers for each sample event sample event sources the program settings that initiated the event any errors encountered during the sampling routine Figure 1 1 shows an example of the reports produced by the file 1 1 Samplink Section 1 Samplink Instructions SETTINGS REPORT RESULTS REPORT ID 10 35 07 JUN 02 SAMPLER STATUS xx kxxk STANDBY 10 35 13 07 JUN 02 PROGRAM SETTINGS TIME MODE 100 ml SAMPLES FIRST SAMPLE AT START TIME THEN SAMPLE 0 HOURS 30 EVERY MINUTES NO MULTIPLEXING IDH 10 35 07 JUN 02 SAMPLING RESULTS k x k Program Started at 15 51 06 JUN 02 Nominal Sample Volume 100 ml S O E U R R R COUNT O TO SAMPLE BOTTLE E R TIME DATE LIQUID 1 1 5 15 51 06 JUN 758 1 2 T 16 21 06 JUN 755 1 3 T 16 51 06 JUN 747 1 4 T 17 21 06 JUN 746 il 5 T 17 51 06 JUN 748 6 T 18 21 06 JUN 750 1 7 T 18 51 06 JUN 745 1 8 T 19 21 06 JUN 747 1 9 T 19 51 06 JUN 746 i 10 T 20 21 06 JUN 748 1 11 dH 20 51 06 JUN 745 1 12 T 21 21 06 JUN 748 1 13 T 21 51 06 JUN 745 1 14 T 22 21 06 JUN 748 1 15 dh 22 51 06 JUN 748 1 16 T 23 21 06 JUN 746 1 17 T 23 51 06 JUN 748 I 18 T 0 21 07 JUN 752 1 19 T 0 51 07 JUN 749 L 20 T 1 21 07 JUN 749 L 21 T 1 51 07 JUN 750 1 22 T 2 21 07 JUN 750 1 23 T 2 51 07 JUN 750 1 24 T 3 21 07 JUN 749 Program Finished at 3 21 07 JUN SOURCE
20. ause it is a DOS program it may not run on systems with operating systems newer than Windows 95 Although SAMPLINK is primarily used with a laptop computer you can use two hardware configurations A laptop computer with a PC compatible serial port and at least one floppy disk drive Install SAMPLINK on the lap top computer and take it to each site to retrieve the data A desktop personal computer with a PC compatible serial port a hard disk and at least one floppy disk drive This configuration allows you to retrieve data with the desktop computer in the office In the case of a desktop compuer you may find it more convenient to bring the sampler to the office than to bring the computer out to the sampler Using both a desktop computer and a laptop computer allows you to process data on the desktop computer while the laptop computer is in the field 1 3 Samplink Section 1 Samplink Instructions 1 2 3 Interrogation Cable In addition to the hardware listed above the system requires a Requirements cable to connect the computer to the Isco sampler An optional extension cable is available Figure 1 2 shows the cables the sampler and a laptop computer Interrogator Cable The interrogator cable used with SAMPLINK has a 6 pin connector at one end and a 9 pin connector on the other The 6 pin connector connects to the sampler s printer interrogator connector The 9 pin connector on the cable attaches to the computer s seri
21. blood Uncon sciousness in 30 min at 0 2 to 0 25 Fatal in 4 hours at 0 1 Headache in few hours at 0 02 Intestinal upset loss of consciousness pos Sible renal damage respiratory failure Irritates respiratory tract Kills most ani mals in a very short time at 0 1 Near top Concentrates in closed up per spaces At bottom At bottom At bottom when heated may stratify at points above bottom 12 5 74 0 Near top especially if present with illuminating gas At bottom At bottom Sewers chemi cal feed rooms Industrial wastes varnish sol vents An insecticide Products of com bustion sewer gas sludge Also issues from car bonaceous strata Manufactured gas flue gas products of com bustion motor exhausts Fires of almost any kind Industrial wastes solvent clean ing Chlorine cylin der and feed line leaks Detectable odor at low concentrations Combustible gas indicator Combustible gas indicator Oxygen deficiency indicator CO ampoules Detectable odor at low concen trations Detectable odor at low concen trations Formal dehyde Hydrogen Hydrogen Cyanide CS2 CO2 co Clo CH to CHp Ha HCN Colorless pungent suffocating odor Volatile solvent Colorless Odor notice able at 0 03 Flam mable Simple asphyxiant Colorless odorless tasteless Flammable Faint odor of bit
22. dly causes acute poison ing Paralyzes respira tory center Exposure Exposure Explosive Range 96 by vol in air Limits lower upper Likely Location of Highest Concentration Near bottom but may be above bottom if air is heated and highly humid Most Common Sources Coal gas petro leum sewer gas Fumes from blasting under some conditions Sludge gas Simplest and Cheapest Safe Method of Testing 1 HS Ampoule 2 5 by weight lead acetate solution Nitrogen Oxides Sulfur Dioxide Turpentine Simple asphyxiant Colorless odorless tasteless flammable Simple asphyxiant Colorless tasteless Non flammable Prin cipal constituent of air about 79 Color Colorless sweet odor Reddish brown Irritating odor Deadly poison Colorless odorless tasteless Supports combustion Irritant and poison ous Strong electrical odor Strong oxidizer Colorless At 1 ppm strong sulfur like odor Mostly a simple Variable asphyxiant May be practically odorless tasteless Colorless pungent odor Suffocating cor rosive poisonous non flammable Colorless benzene like odor Colorless Character istic odor Acts mechanically to deprive tissues of oxy gen Does not support life Physiologically inert 60 to 150 ppm cause irritation and cough ing Asphyxiant 100 ppm dangerous 200 ppm fatal Normal air contains 20 896
23. e bottle numbers The RTD 581 and 6700 Series Samplers do not create Flowlink compatible header and data files SAMPLINK follows the FLOWLINK naming convention for both text files and datasets SIxxxFzz SMP for text files SIxxxFzz HDR for header files and SIxxxFzz DAT for data files The letters SI stand for site The letters xxx represent three digits from the sampler ID number The character F indicates the source of the dataset a sample event dataset created by SAMPLINK Datasets retrieved from flow meters use A B or C to indicate that the source of the dataset is one of three flow meter memory partitions The characters zz represent the file sequence number ASCII text file SlxxxFzz SMP SI002F01 SMP Header File SixxxFzz HDR SI002F01 HDR Data File SlxxxFzz DAT SI002F01 DAT SAMPLINK uses the Sampler ID number and the sequence number to form a unique dataset file name When SAMPLINK checks the Sampler ID number it reads the ID from right to left It will use the first three digits it encounters as the xxx segment of the file name Although the sampler will allow you to enter periods dashes and spaces in the ID number SAMPLINK will use only the digits from the Sampler ID Ifit finds a period dash or space instead of a digit it will skip those characters and search for the next digit These are skipped over because periods dashes and spaces are not legal characters in DOS files names SAMPLINK saves the text file with
24. e report lists the source and error codes for your reference Table 1 1 lists the source and error codes Figure 1 8 diagrams the results report and Figure 1 9 shows a report with a number of source and error codes The Results Report lists each event in chronological order If the routine is halted and resumed again between sample events the halt and resume times are reported in sequence The report also includes the pump count for each sample under the COUNT TO LIQUID heading The count reports the number of forward pump counts between the initiation of forward pumping for the sample delivery after the prepurge and liquid detection The number of counts is related to the suction head By examining the counts for each event you can identify fluctuating or abnormal head conditions If the liquid detector has been disabled the report prints an asterisk instead of a pump count SAMPLINK is primarily a program used to retrieve data from Isco products With new products being supported the reports are continually evolving The instruction manual for the product should be consulted when interpreting the data presented in the reports The RTD 581 is used to retrieve data from other products so the manual for the product that created the data should be used to interpret the report Samplink Section 1 Samplink Instructions Table 1 1 Results Report Samples Bottle Sources and Error Codes SOURCE CODES EXPLANATION T The
25. ed in this manual or enhance the operation of the equipment itself Contact Information Phone 800 228 4373 USA Canada Mexico 402 464 0231 Outside North America Repair Service 800 775 2965 Analytical and Process Monitoring Instruments 800 228 4373 Samplers and Flow Meters Fax 402 465 3022 Email address Info isco com Website www isco com Return equipment to 4700 Superior Street Lincoln NE 68504 1398 Other correspondence P O Box 82531 Lincoln NE 68501 2531 Isco SAMPLINK Software Registration To Register the SAMPLINK software fill out the registration information below and return this sheet to Isco Registration ensures your access to customer support and software updates Look at your disks Write the version number and the e Software number in the blanks provided below Version Serial Number Today s Date a H 2 e Contact Name To whom should we send updates Contact Name Telephone S A BE 3j e Company Where should we send the updates Company Address Address City State Zip 4 e Fold and mail this sheet to Isco promptly Isco Inc PO Box 82531 Lincoln 68501 2531 SAMPLINK Table of Contents Section 1 SAMPLINK Instructions 1I Introduction 4 5 eee Lore tt tes 1 1 1 2 Installation 8 1 3 1 2 1 Registering SAMPLINK
26. ften be diagnosed and corrected over the phone or by e mail without returning the instrument to the factory Instruments needing factory repair should be packed carefully preferably in the original carton and shipped to the attention of the service department Small non fragile items can be sent by insured parcel post PLEASE BE SURE TO ENCLOSE A NOTE EXPLAINING THE DEFECT Return instruments to Isco Inc Attention Repair Service 4700 Superior Street Lincoln NE 68504 USA Mailing address Isco Inc PO Box 82531 Lincoln NE 68501 USA Phone Repair service 800 775 2965 lab instruments 800 228 4373 samplers amp flowmeters Sales amp General Information 800 228 4373 USA amp Canada Fax 402 465 3001 Email service isco com Isco Inc November 2000 2217
27. me or flow pacing sample volumes are identical to those displayed when you review settings with the sampler s DISPLAY STATUS key 1 9 Samplink Section 1 Samplink Instructions The Results Report lists the sampling results stored in the sampler s memory Sampling results include the start time for the routine the sample event times and bottle numbers and so on The sampler stores the sampling results for any sample event that occurs after you ve pressed the START SAMPLING key to start the sampling routine Any results stored for previous routines will be erased once you press the START SAMPLING key Both reports list the time and date the report was produced and the sampler ID number Examples of both reports appear in Figures 1 1 1 8 and 1 9 In Figure 1 1 the Settings Report is in the left column and the Results Report is in the right column Settings Report The Settings Report is divided into two sections sampler status and program settings The first section lists the sampler status information and appears under the heading SAMPLER STATUS The sampler status information duplicates the displays presented by the sampler when you start the report These displays can include any standby messages run state displays or programming input displays If the sampler presents a flashing display when you start the report the flashing text may not appear If the sampler is off when you start the report the sampler status will be SAM
28. multiplexing 1 of 3 2 of 3 of 3 HH bottles 1 through 3 Composite sampling routines Sample m event number 1 Composite sampling routines bottle 1 Program Started ai 00M Nominal Sample Volume ml 5 U H C E SAMPLE BOTTLE See Table 2 3 1 DOF 237 Source Error Code Code DATE LIQUID See Table 2 3 1 Sampler Enabled i DD ZI nmm Sampler Disabled OO nmrm Program Halted DD zl nnm Program Resumed DD zn Power Failed i DD nmm Power Restored i i DO NAN Program Finished i DD z nnm Source Time Source 5 gt Start Error gt Program Halted Figure 1 8 Interpreting the Results Report Samplink Section 1 Samplink Instructions Time and Date of Sample Event Number of pump counts between the initiation of forward pumping and the detection of liquid The number of pump counts varies with the suction head for the sampler By examining the counts for each sampler event you can identify fluctuating or abnormal head conditions Ifthe liquid detector is disabled the report will list an for the count These items are listed as required The time the sampler completes the program is listed if the program has finished at the time of interrogation The report includes a key that lists each source and error code used in the report Samplink Section 1 Samplink Instructions
29. ncies The following procedures are used by Black amp Veatch a respected consulting firm and are published here with their per mission Field personnel must keep safety uppermost in their minds at all times When working above ground rules of common sense and safety prevail However when entering manholes strict safety pro cedures must be observed Failure to do so could jeopardize not only your own life but also the lives of other crew members 1 Hazards There are many hazards connected with entering man holes Some of the most common hazards are Adverse Atmosphere The manhole may contain flammable or poi sonous gases or the atmosphere may be deficient in oxygen Forced ventilation may be necessary Deteriorated Rungs Manhole steps may be corroded and not strong enough to support a man It may be difficult to inspect the rungs because of poor lighting Traffic Whenever manholes are located in the traveled way barri cades and warning devices are essential to direct traffic away from an open manhole Falling Object Items placed near the manhole opening may fall and injure a worker in the manhole Sharp Edges Sharp edges of items in or near a manhole may cause cuts and bruises A 1 Samplink Appendix A Safety Information A 2 Lifting Injuries Unless proper tools are used to remove manhole covers back injuries or injuries to hands and feet may result 2 Planning Advance planning should include arr
30. ng on which version of Microsoft Windows you are running type either cmd or command from the Run dialog Windows Start RUN 2 Atthe C gt prompt type CD space SAMPLINK to access the SAMPLINK directory on Drive C 3 At the C SAMPLINK gt prompt type SL to start the SAMPLINK program To create a shortcut on the desktop 1 Right click on your desktop and select New Shortcut from the dropdown menu 2 In the dialog box type in the path name for the SAMPLINK program file C SAMPLINK SAMPLINK EXE or click on Browse to select the file 1 5 Samplink Section 1 Samplink Instructions 3 Select Next from the dialog box and select the name you want for the shortcut 4 Select Next and then choose an icon to represent the shortcut 5 Select Finish The shortcut will be displayed on your desk top To run SAMPLINK click on the shortcut M Note When using the SAMPLINK on the laptop computer you may be required to enter dangerous locations Appendix A contains important safety considerations Please review Appendix A before entering any hazardous location 1 3 3 Retrieving Sampler To retrieve sampler data start your SAMPLINK program Data SAMPLINK will present the title screen shown in Figure 1 3 Select 1 ifinterrogation Cable is attached to Serial Port COM1 or 2 if the cable is attached to serial port COM2 SAMPLINK Version 3 04 01 Copyright c 1993 1995 1996 2001 ISCO INC
31. nk Section 1 Samplink Instructions This section shows you how to install and operate SAMPLINK After you install SAMPLINK read Sections 1 3 2 and 1 3 3 for instructions on running SAMPLINK Sections 1 3 4 1 3 5 and 1 3 6 show you how to print and interpret the reports contained in SAMPLINK s text file SAMPLINK normally runs on a laptop computer and the laptop is taken to the sampling site to collect the data However SAMPLINK can also be installed on a desktop computer Because SAMPLINK is a DOS program rather than a Microsoft Windows program you may experience difficulties running it on some newer operating systems such as Windows NT 2000 and XP This is due to the limited DOS support in those operating systems Use the following instructions to install SAMPLINK on your hard disk 1 Place the SAMPLINK program disk in Drive A Since itis a DOS program you must run it from a DOS prompt Depending on which version of Microsoft Windows you are running type either cmd or command from the Run dialog Windows Start RUN 2 Atthe DOS prompt type A to change the directory to Drive A 3 After the A gt prompt type INSTALL space C This will install the program files on your C drive in a directory named SAMPLINK After SAMPLINK is installed you can run the program either by issuing a command at a DOS prompt or by creating a shortcut on your desktop To run from a DOS prompt 1 Dependi
32. nt was to occur The sampler was unable to take the sample because the sampler s power source was E Power Lost disconnected The sampler was prevented from taking the sample by an inhibit signal from the flow Sampler Inhibited meter DJ Distributor Jammed The sampler was unable to take the sample because the distributor jammed The sampler determines overflow by comparing the bottle volume to the product of the Ov Probable Overflow sample volume and the number of samples If the product exceeds the bottle volume the sampler will not pump a sample for that sample event This code appears for portable composite and refrigerated samplers If the liquid level T j Float Weight Tripped of the composite bottle raises the float past the trip point or the refrigerator s weight table detects a full bottle the sampler records the Float Weight Tripped condition NL No Liquid Detected The sampler was unable to take the sample because no liquid was detected The sampler was unable to deliver a full sample volume because the sampler pumped NM Ne Mere Liquid all liquid from the flow stream The sampler was unable to take the sample because it was halted with the ON OFF key O Sampler Shut OFF during the sample event SAMPLES BOTTLES Sequential sampling routines Sequential sampling routines 1 1 sample per bottle HH bottle number Samples per bottle multiplexing Bottles per sample
33. ny person has been asphyxiated in a sewer by any of those other gases except possibly chlorine The vapor of gasoline and other hydrocarbons is sometimes present in amounts that could cause discomfort and illness but under that condition the explosion hazard would be far more serious The explosimeter tests as well as the sense of smell would warn of the danger Pipelines in chemical plants might contain any number of harmful vapors They too are sensed by smell and explosimeter tests if they get into the public sewer Such occurrences are rare The attempt to instill a sense of urgency about real hazards is diluted if a man is told to give attention to a long list of things that in fact are irrelevant Be very careful to avoid high H2S concentrations flammable atmo spheres and hazards of physical injuries Remember that much H2S may be released by the stirring up of sludge in the bottom of a struc ture Obey your senses in respect to irritating gases such as chlo rine unconsciousness comes suddenly from breathing too much Be cautious about strange odors Do not determine percent oxygen in the air There is a danger that the result will influence a man s thinking about the seriousness of the real hazards Most important use ample ventilation and do not enter a potentially hazardous structure except in a good safety harness with two men at the top who can lift you out A 5 Samplink Appendix A Safety Information Hazardo
34. programs are using memory Terminate all other programs and reboot the computer If no other programs are using memory this message may indicate that the computer s RAM is malfunctioning or damaged Have a qualified service technician check your hardware if this occurs repeatedly Unable to retrieve data Device or port error SAMPLINK is having communications problems with the device This could be caused by large amounts of electrical noise EMI in the local environment or other elements that are not compatible with communication Samplink Section 1 Samplink Instructions No data received from the device Device error SAMPLINK attempted to retrieve data from a device but the device does not support the method of data retrieval being used by SAMPLINK Data reception lost Check cable connections SAMPLINK was receiving data from the device then too much time passed without any data being received This is caused by the device not sending all of its data 1 4 Technical Information 1 4 1 Byte Level Description Samplink Section 1 Samplink Instructions The data transfer protocol is ASCII RS 232 with a one way handshake provided by SAMPLINK The sampler downloads the data at 2400 baud paced by SAMPLINK s handshake signal Data file DAT Readings in a sample event data file use a five of Dataset Headerand byte record The first four bytes are a long integer which records Data Files the date and time the sample was taken
35. rounding surface there may not be anything for the per son who is entering the manhole to grab on to steady himself Persons who are entering manholes should not be permitted to carry anything in their hands as they enter the manhole to ensure that their hands are free to hold on or grab if they slip A good method for entering a manhole is to sit on the surface facing the manhole steps or ladder with the feet in the hole and the arms straddling the opening for support As the body slides forward and downward the feet can engage a rung and the back can rest against the opposite side of the opening If there is any doubt about the soundness of the manhole steps a portable ladder should be used A person should never enter a manhole unless he is wearing per sonal safety equipment including a safety harness and hard hat Two persons should be stationed at the surface continuously while anyone is working inside a manhole to lift him out if he is overcome or injured One man cannot lift an unconscious man out of a man hole The persons stationed at the surface should also function as guards to keep people and vehicles away from the manhole opening To avoid a serious injury a person should not be lifted out of a manhole by his arm unless it is a dire emergency When more than one person must enter a manhole the first person should reach the bottom and step off the ladder before the second Samplink Appendix A Safety Information one
36. s Units are in All data received Press Q key to quit Data saved in file 1001F00 SMP Model 6700 HW Rev XX SW Rev XX XX ID Figure 1 7 All Data Received 6700 Series Sampler and RTD 581 1 3 4 Printing the Text File 1 3 5 Reading the 3700 Series Sampler Text File Reports You can press the for quit key at any time to leave SAMPLINK and return to the DOS screen If you quit before SAMPLINK has saved the data it will display a message DATA NOT SAVED DO YOU WANT TO QUIT Type Y to quit and return to DOS SAMPLINK will not save any files Press any other key to continue the program and save the data To print an ASCII text file load it into a word processor The text files can be identified by the SMP file extension Use the word processor to edit and print the files You can also use the DOS command TYPE to print the files Use the command with the redirection sign gt and the printer default commands PRN or AUX Using gt PRN or gt AUX redirects the output from the monitor to the printer The PRN command sends output to a parallel printer while AUX sends output to a serial printer To print the file with the TYPE command type TYPE SIxxxFzz SMP gt PRN or TYPE SIxxxFzz SMP gt AUX The sampler text file contains two formatted reports The Settings Report lists the sampler status information and program settings for the current sampling routine The program settings ti
37. sample event was one of the program s time paced samples Flow The sample event was one of the program s flow paced samples S Start The sample event was initiated at the program s start time The sample event was initiated to compensate for a missed sample which should have Resume occurred while the sampler was halted The sample event was initiated to compensate for a missed sample which should have za occurred while the sampler was without power E Enable The sample event was initiated when the sampler became enabled by the flow meter This source is also reported when the sample was initiated at a resume time M Manual The sample event was initiated with the MANUAL SAMPLE key and was counted as one of the programmed sample events Sw Time Switch The sample event was initiated at the programmed switch time D Disable The sample event was initiated when the sampler became disabled by a flow meter ERROR CODES EXPLANATION S STOP Key Hit The sampler was halted with the STOP key during the sample event Pump Jammed The sampler was unable to take the sample because the pump jammed The sampling routine was started after the programmed start time for the first sample L Started Too Late This message is reported for all samples skipped because of an expired start time The sampling routine was interrupted by the STOP or EXIT PROGRAM key when the sam H Er gram Halted ple eve
38. stible gas indicator 2 Oxygen defi ciency indica tor Oxygen deficiency indicator NO detector tube Oxygen defi ciency indicator Detectable odor at 0 015 ppm See components Detectable taste and odor at low concen tration Combustible gas indicator 1 Detectable odor at low concentrations 2 Combustible gas indicator Colorless flammable Percentages shown represent volume of gas in air Mostly methane and carbon dioxide with small amounts of hydrogen nitrogen hydrogen sulfide and oxygen occasionally traces of carbon monoxide Narcotic in high con centrations less toxic than benzene At bottom Solvent Combustible gas indicator A 7 Samplink Appendix A Safety Information This page intentionally left blank A 8 One Year Limited Warranty Factory Service Isco instruments covered by this warranty have a one year limited warranty covering parts and labor Any instrument that fails during the warranty period due to faulty parts or workmanship will be repaired at the factory at no charge to the customer Isco s exclusive liability is limited to repair or replacement of defective instruments Isco is not liable for consequential damages Isco will pay surface transportation charges both ways within the 48 contiguous United States if the instrument proves to be defective within 30 days of shipment Throughout the remainder of the warranty period
39. ter almonds Colorless gas Irritating to the nose Anesthetic effects when inhaled Rap idly fatal at 2 496 Dangerous for short exposure at 1 1 to 2 266 Acts mechanically to deprive tissues of oxy gen Does not support life Slight symptoms appear upon exposure to 0 002 to 0 004 0 396 rapidly fatal 4 000 to 7 000 1 000 Near bottom 13 6 0 At bottom 4 0 74 0 At top 6 0 40 0 Near top Incomplete com bustion of organics Com mon air pollut ant fungicide Service stations garages storage tanks houses Manufactured gas sludge digestion tank gas electrolysis of water Rarely from rock strata Insecticide and rodenticide Detectable odor 1 Combustible gas indicator 2 Oxygen deficiency indicator Combustible gas indicator Detector tube Percentages shown represent volume of gas in air For concentration over 0 3 A 6 Chemical Formula Common Properties Specific Gravity or Vapor Density Air 1 Irritant and poison ous volatile com pound Rotten egg odor in small concen trations Exposure for 2 to 15 min at 0 01 impairs sense of smell Odor not evident at high concentrations Colorless Flammable Samplink Appendix A Safety Information Hazardous Gases Continued Physiological Effect Impairs sense of smell rapidly as con centration increases Death in few minutes at 0 2 Exposure to 0 07 to 0 1 rapi
40. the new sequence number The new sequence number is always the lowest available number If you have suppressed the dataset files SAMPLINK will search for SMP files only to determine the next sequence number Because the file name can use only two characters for a sequence number SAMPLINK can save up to 100 files 00 through 99 with the same xxx segment in one directory For example SAMPLINK will save files SI234F00 SMP through SI234F99 SMP in the same directory When all 100 sequence numbers have been used SAMPLINK will present a message Unable to save data All file numbers already exist You must delete older unused files so that SAMPLINK can use their sequence numbers You may prefer to copy the files to another directory before deleting them As linked files datasets must be stored copied and deleted as a set The RTD 581 can store data from about twenty interrogations more if the programs are relatively simple fewer if the programs are complex and generate a large number of events When SAMPLINK collects data stored by the RTD 581 a separate file will be created and saved for each interrogation 1 3 8 Error Messages Samplink Section 1 Samplink Instructions SAMPLINK has several error messages to alert you to problems The messages appear at the bottom of the display Each message and a short explanation is listed below No data received Check cable connections This message appears on SAMPLINK s title screen
41. tions 1 20 Note that dates and time are stored in two formats both representing the number of minutes elapsed since January 1 1977 00 00 The iscodate format stores the time as a pair of integers The first integer represents the number of days and the second integer represents the number of minutes past midnight The long integer format of the date simply stores the number of minutes elapsed since 1 1 77 00 00 SAMPLINK Appendix A Safety Information A 1 Safety Considerations A 2 General Safety Procedures When using SAMPLINK and a laptop computer in hazardous loca tions the safety of the personnel involved should be the foremost consideration No project is so important or deadline so critical as to justify the risk of human life The following sections provide safety procedures for working in and around manholes and sew ers The first section offers general safety advice the second sec tion deals with the special problem of poisonous gases found in sewers CAUTION Before using the laptop computer in a hazardous location the proper safety precautions must be taken The following discus sions of safety procedures are only general guidelines Each situation varies and you must take into account the individual circumstances of each installation Additional safety consider ations other than those discussed here may be required Check applicable guidlines codes and regulations of federal state city and county age
42. ugh the data without pausing press the C for continuous key Note SAMPLINK allows you to scroll forward through the displayed report once you cannot scroll backward To view the data again use the DOS TYPE command to display the saved file Samplink Section 1 Samplink Instructions ID 792 to the screen This command will scroll the contents of the file on the screen You can stop the scrolling with the Control S keys and resume the scrolling with the Control Q keys If you run SAMPLINK again to view the file it will save a second identical file under a new name The TYPE command not only allows you to save disk space it can eliminate the confusion duplicate files can cause When SAMPLINK completes the process it will display the message ALL DATA RECEIVED PRESS THE Q KEY TO QUIT DATA SAVED IN FILE SIXXXFYY SMP Refer to Figures 1 6 and 1 7 SIxxxFyy SMP is the file name which will be located in the C SAMPLINK directory SAMPLINK file names are discussed in Section 1 3 7 11 02 4 AUG 02 RRARRRARARAR SAMPLER STATUS xxx PROGRAM HALTED 11 02 44 4 AUG 02 oeeieeeeeook PROGRAM SETTINGS xxx TIME MODE 10 ml SAMPLES FIRST SAMPLER AT START TIME All data received Press Q key to quit Data saved in file S17292F09 SMP Press N key for next page C to scroll continously Figure 1 6 All Data Received 3700 Series Sampler 1 8 Hour Ending Samplink Section 1 Samplink Instruction
43. us Gases Gas Chemical Common Specific Physiological Max Max Explosive Likely Most Simplest and Formula Properties Gravity or Effect Safe Safe Range Location Common Cheapest Vapor 60 Min 8 Hour by vol of Sources Safe Method Density Exposure Exposure air Highest of Testing Air 1 ppm ppm Limits Concentration lower upper Benzene Carbon Bisulfide Carbon Dioxide Carbon Monoxide Carbon Tetra Chloride Chlorine Trritant and poison ous Colorless with characteristic odor Irritant colorless anesthetic Nearly odorless when pure color less anesthetic Poisonous Asphyxiant Color less odorless When breathed in large quantities may cause acid taste Non flam mable Not generally present in dangerous amounts unless an oxygen deficiency exists Chemical asphyxiant Colorless odorless tasteless Flammable Poisonous Heavy ethereal odor Irritant Yellow green color Choking odor detectable in very low concentrations Non flammable Causes throat and eye irritation at 0 05 coughing at 0 17 Short exposure at 0 5 to 1 fatal Slight symptoms after several hours exposure at 0 16 to 0 32 2 rapidly fatal Very poisonous irritating vomiting convulsions psychic disturbance Cannot be endured at 10 more than a few minutes even if sub ject is at rest and oxy gen content is normal Acts on respiratory nerves Combines with hemo globin of
44. with little knowledge of the grave hazards to which he exposed himself It is gratifying that the subject of hazards to people working in sew ers is receiving much more attention than in past years and good safety procedures are prescribed in various publications on this sub ject It is essential that people know and use correct procedures It is less important to know just what the hazardous components of sewer atmospheres are as safety precautions should in general be broadly applicable but there should be a reasonable understanding of this subject It is disturbing to see statements in print that do not reflect true conditions One of the most common errors is the assumption that people have died from a lack of oxygen The human body is able to function very well with substantially reduced oxygen concentrations No one wor ries about going to Santa Fe New Mexico elev 2100 m where the partial pressure of oxygen is equal to 16 2 percent a normal atmosphere is about 21 percent oxygen When first going there a person may experience a little shortness of breath following exer cise People in good health are not afraid to drive over the high passes in the Rocky Mountains At Loveland Pass oxygen pressure is 13 2 percent of a normal atmosphere At the top of Mt Whitney oxygen is equal to 12 2 percent Many hikers go there and to higher peaks as well After adequate acclimation they may climb to the top of Mt Everest where o
45. xygen is equal to only 6 7 percent The lowest oxygen concentrations that have observed in a sewer atmosphere was 13 percent It was in a sealed chamber near sea level upstream from an inverted siphon on a metropolitan trunk A man would be foolish to enter the chamber Without ventilation he might die but not from lack of oxygen It seems unlikely that anyone has ever died in a sewer from suffoca tion that is lack of oxygen Deaths have often been attributed to asphyxiation This is a word which according to the dictionary is used to mean death from an atmosphere that does not support life The word has sometimes been misinterpreted as meaning suffoca tion which is only one kind of asphyxiation In nearly all cases of death in sewers the real killer is hydrogen sul fide It is important that this fact be recognized Many cities diligently test for explosive gases which is very important and they may mea sure the oxygen concentration which usually is unimportant but they rarely measure H2S Death has occurred where it is unlikely that there was any measurable reduction in the oxygen concentra tion Wastewater containing 2 mg l of dissolved sulfide and at a pH of 7 0 can produce in a chamber with high turbulence a concentra tion of 300 ppm in the air This is considered to be a lethal con centration Many people have died from H2S not only in sewers and A 4 Samplink Appendix A Safety Information industries
Download Pdf Manuals
Related Search
SAMPLINK samplink alias autosampler samp link sampling sampling methods sampling bias sampling distribution sampling error sampling frame sampling rate sampling techniques sampling plan sampling meaning sampling techniques in research