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TSI Instruments PORTACOUNT 8020 Addendum
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TSI Instruments PORTACOUNT 8020 Addendum

TSI Instruments PORTACOUNT 8020 Addendum

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P
C
®
Plus Model 8020 Technical Addendum
revised 7-27-2001
ORTA
OUNT
www.tsi.com
®
P
C
Plus Model 8020
ORTA
OUNT
Technical Addendum
(includes the N95-Companion™ Model 8095)
TSI Incorporated, St. Paul, Minnesota, USA
1
Copyright © 2001 all rights reserved

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Summary of Contents for TSI Instruments PORTACOUNT 8020

  • Page 1 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT www.tsi.com ® Plus Model 8020 ORTA OUNT Technical Addendum (includes the N95-Companion™ Model 8095) TSI Incorporated, St. Paul, Minnesota, USA Copyright © 2001 all rights reserved...

  • Page 2: Table Of Contents

    ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT INTRODUCTION ® This document is a addendum to the PortaCount Plus Model 8020 Operation and Service Manual (TSI p/n 1980092). It contains detailed technical information that is not normally needed by persons using the PortaCount Plus for respirator fit testing.

  • Page 3: Dip Switch Settings

    ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT DIP SWITCH SETTINGS LASER CAUTION This instrument is a Class I laser device. Adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. There is a bank of 8 DIP switches located inside the P Plus.
  • Page 4 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT The DIP switches are located towards the bottom of the circuit board just to the left of center. Make sure the Plus is always off when ORTA OUNT changing DIP switch settings. There are 8 DIP switches.
  • Page 5 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT DIP Switch 4: Memory Lock Switch 4 allows you to lock the P Plus memory so that the internal settings for ORTA OUNT the sampling times, fit factor pass level and number of exercises cannot be changed from the P Plus Keypad or by using the MODIFY program software supplied with ORTA...
  • Page 6 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT peripheral device. When switch 8 is OFF, the CTS signal will be required. The CTS signal is always required when the P Plus is in External Control Mode ORTA OUNT regardless of the position of switch 8.

  • Page 7: Serial Interface Output

    ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT SERIAL INTERFACE OUTPUT Output in Fit Test Mode An example of the printout from a eight exercise fit test is shown below. All characters are ASCII. Each line is terminated with both carriage return (0D hex) and line feed (0A hex) characters.
  • Page 8 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT In 15-Second Count Mode, the ASCII output is in the following format. Each line is terminated with both carriage return (0D hex) and line feed (0A hex) characters. A line of data is transmitted every 15-seconds.
  • Page 9 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT • DIP Switches are considered ON if set to 1 and OFF if set to 0. DIP Switches are numbered 1 - 8 from left to right on the printout and 1 - 8 from top to bottom on the circuit board.

  • Page 10: Data And Accessory Port Pin Assignments

    ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT DATA and ACCESSORY PORT PIN ASSIGNMENTS The P Plus features bi- ORTA OUNT directional RS-232C communications through the Data Port. The Accessory Port is used to interface with the N95- ACCY Port Data Port Companion accessory.

  • Page 11: Computer Interface Cables

    ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMPUTER INTERFACE CABLES The diagrams below show how to connect an IBM-PC compatible RS-232C serial interface to the P Plus Data Port. The computer end of these cables are always ORTA OUNT female.

  • Page 12: Remote Control Via Computer

    REMOTE CONTROL via COMPUTER This section describes in detail, how to operate the P Plus in External Control ORTA OUNT Mode through the Data Port. This information will be useful to those who want to write their own control program. The following nomenclature is used in this section: Single character ASCII numeral (0 - 9) Single character ASCII numeral (0 - 9)
  • Page 13 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT PTM0330<cr> The P Plus will respond as follows, without changing the mask sample ORTA OUNT time: WPTM0330<cr><lf> • If a low battery condition occurs while the P Plus is in External Control ORTA OUNT Mode, the following characters are transmitted just before the unit turns itself off:...
  • Page 14 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION VN<cr> Switch Valve ON (sample through Ambient Tube) This command switches the internal valve to the ON position which forces the sampled air to be drawn through the Ambient Tube. The valve is automatically set to OFF when the External Control Mode is first invoked.
  • Page 15 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION R<cr> Request Runtime Status of Battery and Signal Pulse This command forces the PORTACOUNT Plus to report the battery condition and the sensor pulse condition. Three characters are returned by the PORTACOUNT Plus. The first character is always an R.
  • Page 16 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION S<cr> (continued from previous page) (continued) 13 lines will be transmitted, one for each exercise. xx is the exercise number (01 to 13) and vv is the mask sample time in seconds. Mask sample times will be in the range from 10 to 99 seconds.
  • Page 17 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION Y<cr> Turn Power OFF This command turns the PORTACOUNT Plus OFF. It must be turned ON using the Keypad. There is no way to turn the PORTACOUNT Plus ON using an external computer.
  • Page 18 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION PTPA0vv<cr> Set Ambient Sample Purge Time This command sets the ambient sample purge time for exercises 1 through 12. vv is the ambient sample purge time in seconds and must be in the range from 04 to 25. For example, to set the ambient sample purge time to 8 seconds, send the command: PTPA008<cr>...
  • Page 19 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION Dxxxxxx.xx<cr> Display Concentration on PORTACOUNT Plus This command clears the entire Display and then displays a concentration value. The PARTICLE/cm 3 message is turned ON. xxxxxx.xx is the concentration to display and can be any number from 000000.00 to 999999.99.
  • Page 20 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION Axxxxxx.x<cr> Display Overall Fit Factor on PORTACOUNT Plus This command clears the entire Display and then displays an overall fit factor value. The OVERALL FIT FACTOR message is turned ON. xxxxxx.x is the overall fit factor to display and can be any number from 000000.0 to 999999.9.
  • Page 21 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION Ixxxxxxxx<cr> (continued from previous page) (continued) Bit 3: FIT FACTOR Message 1 = Turn FIT FACTOR message ON 0 = Turn FIT FACTOR message OFF Bit 4: SERVICE Message 1 = Turn SERVICE message ON 0 = Turn SERVICE message OFF Bit 5: LOW PARTICLE Message...
  • Page 22 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT COMMAND DESCRIPTION Ixxxxxxxx<cr> (continued from previous page) (continued) To turn the FAIL message on only, bit 7 must be a 1, send the command: I00000010<cr> The PORTACOUNT Plus will respond: (continued on next page) (continued from previous page) I00000010<cr><lf>...

  • Page 23: N95-Companion

    ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT N95-Companion Model 8095 The N95-Companion is an accessory for the PortaCount Plus that permits the PortaCount to perform quantitative fit testing on low efficiency disposable respirators such as class-95 (USA) and class-P1/P2 (other countries).
  • Page 24 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT The N95-Companion is used as a particle conditioner in between the respirator and the PortaCount. The 0.04 micrometer particles that are allowed to pass through to the PortaCount are in the size range that is effectively stopped by low efficiency filter media as well as high efficiency media.
  • Page 25 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT • The valve inside the PortaCount is no longer used and is left un-energized (sample tube open). The valve control is automatically re-routed to the N-95-Companion valve located inside the Sampling Pendant. •...
  • Page 26 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT • The internal pass/fail settings are reduced by a factor of 10. Pass/Fail setting for PortaCount Pass/Fail setting alone with N95-Companion Comment Pass/Fail indicator OFF 1 to 10* Minimum pass/fail = 1 1000 2000 or higher Maximum pass/fail =...
  • Page 27 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT N95-Companion Sampling Pendant + 5 VDC (to hold valve open on ambient sample tube) Ground (-) Pendant valve control connector Sample outlet (from N95-Companion) (to N95-Companion) N95-Companion Back Panel Particle Classifier Factory use only Check Button (turns DMA off)
  • Page 28 ® Plus Model 8020 Technical Addendum revised 7-27-2001 ORTA OUNT TSI Incorporated, St. Paul, Minnesota, USA Copyright © 2001 all rights reserved...