PDA–PERSONAL DISTRESS ALARM AND PDR–PERSONAL DISTRESS RECEIVER USER ACCOUNTABILITY SYSTEM AND PERSONAL DISTRESS ALARM FOR THE SCOTT AIR-PAK® 2.2 / 3.0 / 4.5 / FIFTY SELF-CONTAINED BREATHING APPARATUS WARNING THE SCOTT SEMS USER ACCOUNTABILITY SYSTEM IS INTENDED FOR USE WITH SCOTT SELF-CONTAINED BREATHING APPARATUS (SCBA) WHICH MAY SUPPORT HUMAN LIFE IN HAZARDOUS ATMOSPHERES.
The SCOTT SEMS PDA Personal Distress Alarm is an optional accessory which is intended to be integrated only with SCOTT AIR-PAK® 2.2 / 3.0 / 4.5 / Fifty self-contained breathing apparatus (SCBA). The SEMS...
The installation of the SCOTT SEMS PDA distress alarm is approved by the National Institute of Occupational Safety and Health (NIOSH) on all models of SCOTT AIR-PAK 2.2 / 3.0 / 4.5 / Fifty SCBA. The SCOTT SEMS PDA distress alarm Portable Unit, when added to...
DETECTING AND AVOIDING RADIO FREQUENCY INTERFERENCE: When any electronic device is adversely affected by radio waves, Radio Frequency Interference (RFI) is said to have occurred. All electronic devices like the SEMS PDA distress alarm may be subject to the ef- fects of RFI.
If the SEMS PDA distress alarm is affected by RFI when the respirator air supply is turned off or the cylinder is empty, the distress alarm could be turned off during use. If this occurs, depress the RED Manual Alarm Button and hold at least two seconds to activate the alarm. IF THE SYMPTOMS OF RFI OCCUR, THE RESPIRATOR USER MUST CHECK THE SEMS PDA DISTRESS ALARM TO VERIFY THAT IT IS FUNCTIONING PROPERLY.
(less than 6 inches from) components of the SEMS PDA distress alarm. INTRINSICALLY SAFE LISTING The SEMS PDA distress alarm, when installed on a SCOTT respirator, is listed as intrinsically safe in Class I Division 1 Groups A, B, C and D hazardous locations by Entela Testing Laboratories.
BASIC FUNCTIONS OF THE SEMS EQUIPMENT The SEMS equipment has two primary functions: · Personal Alert Safety System (PASS) Distress Alarm · Evacuation Signal The PASS Distress Alarm is joined to the SEMS PDA distress alarm operation. The Portable Unit will send a signal to the Base Station when the SEMS PDA distress alarm goes into full alarm.
OPERATION OF THE SEMS PDA DISTRESS ALARM With proper batteries installed and a charged air cylinder, the SEMS PDA distress alarm (PASS) is automatically activated when the respi- rator is pressurized by opening the cylinder valve of the respirator. If batteries are completely discharged or have not been installed, there will be no light or sound indicating that the unit will not work at all.
2. The reset button on the control module has been pressed twice. In the automatic mode the SCOTT SEMS PDA distress alarm con- stantly monitors motion of the respirator backframe. The motion sen- sor is located in the Sensor Module along with the audible alarm. If...
MANUAL ALARM: If the respirator user is in a situation where immediate assistance is required, the SEMS PDA distress alarm provides a manual alarm but- ton, located on the front of the Control Console on the user’s right shoulder, shown in FIGURE 2. The manual alarm causes the Full Alarm signal to be given.
OTHER OPERATIONAL FEATURES END OF SERVICE TIME INDICATOR The SEMS PDA distress alarm also provides an electronic end of ser- vice time indicator and cylinder pressure display as follows: 1/2 full cylinder When the air supply cylinder has reached 1/2 full capacity, the audible signal will sound and the display will read “1/2 AIR”...
USE OF THE SEMS PDA PORTABLE UNIT Users of SCOTT respirators equipped with the SEMS PDA Portable Unit must be fully trained in the operation of the equipment as part of a complete respiratory protection program before entering a hazard- ous environment.
Distress Alarm a) If the user is in distress or becomes immobile, the SEMS PDA distress alarm will operate in conjunction with the Portable Unit. If the distress alarm is activated, either by the user pressing and holding the MANUAL ALARM for at least two seconds, or from the user being immobile for the required time duration, the Portable Unit will send a distress signal to the Base Sta- tion.
USE OF THE SEMS BASE STATION The SEMS PDR Base Station must be properly programmed before field use. See SEMS Programming Guide SCOTT P/N 89506-01 for complete details of SEMS programming. The SEMS PDR Base Station requires batteries for operation. See the BATTERY REPLACEMENT section of this instruction.
Evacuation a) To send an evacuation message to all logged-in respirator us- ers, the Base Station operator must press and hold the “EVAC” button on the Base Station and then choose “ALL-CALL” from the menu on the display. The “EVAC message will be sent to all logged-in respirator users.
Plug the Base Unit Interface Cable into a COM port as instructed in the COMPUTER SETUP section the SEMS Programming Instruc- tions SCOTT P/N 89506-01. 1. Plug the other end of the Base Unit Interface Cable into the con- nector on the side of the Base Unit.
5. The EVENT LOG file is a text (.txt) which may be viewed in either Microsoft Excel or Microsoft Word. The data is in columns sepa- rated (delimited) by commas. It may require some manipulation of the columns to facilitate reading as shown in FIGURE 6. The columns contain information as follows: Column 1 Event number Identification Column 2 Date of Event...
REGULAR OPERATIONAL INSPECTION When installed on a SCOTT SCBA, inspection and test of the SCOTT SEMS PDA distress alarm is to be conducted along with inspection and test of the respirator before each use. To do this, the REGULAR OPERATIONAL INSPECTION procedures in your respirator instruc- tions will require modification.
INSPECTION OF SEMS PDA DISTRESS ALARM 1. While performing the visual inspection of the respirator visually inspect all SEMS PDA distress alarm enclosures, lenses, and wire conduits for cracks, wear or other damage. If damage is noted, remove respirator from service and tag respirator for repair by qualified personnel.
UNIT WILL REMAIN “ON” IN AUTOMATIC MODE. INSPECTION OF SEMS PDA PORTABLE UNIT When installed on a SCOTT SCBA, inspection and test of the SCOTT SEMS PDA Portable Unit is to be conducted along with inspection and test of the respirator and the SEMS PDA distress alarm before each use.
MANUAL ALARM BUTTON (RED INDICATOR) WITHDRAW WITHDRAW BUTTON (BLUE INDICATOR) RED SIGNAL LIGHT GREEN SIGNAL LIGHT FIGURE 5 THE CONTROL CONSOLE OPERATIONAL INSPECTION of your respirator. If, during the inspec- tion any malfunction of the respirator or the SEMS PDA Portable Unit is noted, remove the respirator from service and tag for repair by au- thorized personnel.
BATTERY REPLACEMENT SEMS PDA DISTRESS ALARM PORTABLE UNIT Three batteries are required to operate the SEMS PDA Distress Alarm Portable unit: two in the Sensor Module assembly and one in the Con- trol Console. It is recommended to replace ALL batteries at the same time.
When replacing batteries on respirators equipped with Harness and Backframe, P/N 804173-XX, position respirator with the cyl- inder down exposing the battery cover on the back of the Sensor Module, as shown in FIGURE 8. FIGURE 8 BATTERY COVER To remove battery cover, first loosen all 4 cover screws 1 or 2 turns each, then fully loosen the screws so the cover can be re- moved.
CONTROL CONSOLE BATTERY 1. To replace the battery in the Control Console, position the respira- tor so the Control Console battery cover is accessible as shown in FIGURE 10. CONTROL CONSOLE BATTERY COVER FIGURE 10 2. To remove battery cover, first loosen all 4 cover screws 1 or 2 turns each, then fully loosen the screws so the cover can be re- moved.
SEMS PDR BASE STATION Battery replacement for the SEMS PDR Base Station is as follows: Place the Base Station in a clean, non-hazardous area. Verify that the unit is not in use and is OFF. Set the Base Station with the control panel face up and the bot- tom of the unit accessible.
READ AND UNDERSTAND THE COMPLETE INSTRUCTION MANUAL BEFORE USING A RES- PIRATOR WITH A SEMS PDA DISTRESS ALARM INSTALLED. QUICK REFERENCE GUIDE TO USE OF THE SEMS PDA DISTRESS ALARM: WHEN YOU WANT TO: Turn it on. Reset pre-alarm Reset full alarm Turn it off (finished with use) Turn on the...
Automatic (green flashing light, no sound) ... > 120 hours Full alarm (red flashing light, 95 dBA sound) ... 8-16 hours Compliance The Scott SEMS PDA distress alarm is a NIOSH approved ac- cessory for use on only the following Scott AIR-PAK and AIR-PAK FIFTY respirators: (NIOSH approval numbers have been included for identification): Scott 2.2 Air-Pak (30 min.)