[27 Pa.B. 5010]
[Continued from previous Web Page] CDT = Coast-down time required for dynamometer to coast from 20 to 10 mph.
(2) Roll speed.
Roll speed and roll counts shall be checked at least once per week by an independent means (for example, photo tachometer). Deviations greater than ±0.2 mph or a comparable tolerance in roll counts shall require corrective action. Alternatively, a redundant roll speed transducer independent of the primary transducer may be used in lieu of the daily comparison. Accuracy of redundant systems shall be checked quarterly.
(c) Emission sampling system.
(1) Leak check.
The entire sample system shall be checked for vacuum leaks on a daily basis and for proper flow on a continuous basis. The sample system leak check shall be performed using the manufacturer's recommended procedure. The allowed maximum leak rate and minimum flow rate shall be those determined in the equipment certification procedure (see § 7).
(d) Analytic instruments.
(1) General requirements.
The analyzer shall, to the extent possible, maintain accuracy between gas calibrations taking into account all errors, including noise, repeatability, drift, linearity, temperature and barometric pressure.
(i) Calibration method.
(2) Two-point gas calibration.
Analyzers shall automatically require a two point gas calibration for HC, CO, CO2 and NO. Gas calibration shall be accomplished by introducing span gases that meets the requirements of (d)(3)(iv) in this section into the calibration port. The pressure in the sample cell shall be the same with the calibration gas flowing as with the sample gas flowing during sampling. When a calibration is initiated, the analyzer channels shall be adjusted to the center of the allowable tolerance range.
(ii) Calibration frequency.
Analyzers shall be calibrated within 72 hours before each official test. The Department may adjust the calibration check frequency as necessary based on a statistical process control algorithm approved by the Department. If the system does not calibrate or is not calibrated, the analyzer shall lock out from testing until corrective action is taken.
(iii) Working zero and span gases.
The following gases shall be used for the calibration check.
(a) Zero gas
O2 = 20.9%
HC < 1 PPM THC AS C-1
CO < 1 PPM
CO2 < 400 PPM
NO < 1 PPM
N2 = Balance 99.99% pure(b) Working span gas
HC = 3,200 PPM propane
CO = 8%
CO2 = 12%
NO = 3,000 PPM
N2 = Balance 99.99% pure(iv) Traceability. The span gases used for the gas calibration and the gas audit shall be traceable to National Institute of Standards and Technology (NIST) standards ±1%, and, in the case of low volume stations shall have a zero blend tolerance.
Alternatively, 5% blend tolerance gases may be used if the system reads the bar-coded calibration gas bottle specifications and adjusts the calibration accordingly.
(3) Five-point gas audit.
(i) Audit frequency.
Analyzers shall successfully pass a five point gas audit for HC, CO, NO and CO2. Analyzers shall undergo the audit procedure minimally every 6 months. For either type of station, the analyzer shall be adjusted or repaired if the requirements of § 3(c)(2) are not met.
(ii) Audit method.
The gas calibration audit shall be accomplished by introducing span gas that meets the requirements of § (d)(3)(iv). The pressure in the sample cell shall be the same with the calibration audit gas flowing as with the sample gas flowing during sampling.
(iii) Audit gases.
The following gases shall be used for the calibration check. Other calibration gas values may be acceptable when a ''gas blender'' apparatus is used if approved by the Department.
(a) Zero gas
O2 = 20.9% (if O2 span is desired)
HC < 1.0 PPM THC
CO < 1.0 PPM
CO2 < 1 PPM
NO < 1.0 PPM
N2 = Balance 99.99% pure(b) Low range calibration gas
HC = 200 PPM propane
CO = 0.5%
CO2 = 6.0%
NO = 300 PPM
N2 = Balance 99.99% pure(c) Low-middle range calibration gas
HC = 960 PPM propane
CO = 2.4%
CO2 = 3.6%
NO = 900 PPM
N2 = Balance 99.99% pure(d) High-middle range calibration gas
HC = 1920 PPM propane
CO = 4.8%
CO2 = 7.2%
NO = 1800 PPM
N2 = Balance 99.99% pure(e) High range calibration gas
HC = 3200 PPM propane
CO = 8.0%
CO2 = 12.0%
NO = 3000 PPM
N2 = Balance 99.99% pure(iv) Traceability. The span gases used for the gas calibration and the gas audit shall be traceable to National Institute of Standards and Technology (NIST) standards ±1% and, in the case of low volume stations shall have a zero blend tolerance. Alternatively, 5% blend tolerance gases may be used if the system reads the bar-coded calibration gas bottle specifications and adjusts the calibration accordingly.
(v) Audit specifications. The analytical system shall read the audit gas within 5% of labeled value. The analyzer shall be adjusted or repaired if the accuracy specifications are not met.
(4) Service and repair calibration.
(i) In-field calibration.
Each time an analyzer's emissions measurement system, sensor or other electronic components are repaired or replaced, a minimum of a five-point gas audit such as (d)(3) shall be performed prior to returning the unit to service.
(ii) Leak check
Each time the sample line integrity is broken, a leak check shall be performed prior to testing.
§ 5. ASM test record information.
(a) General requirements
(1) Test data.
In addition to the information required to uniquely identify the testing station, technician and vehicle, the following data shall also be recorded.
(i) General records
a. Test record number
b. Inspection station and inspector numbers
c. Test system number
d. Dynamometer site
e. Date of test
f. Emission test start time and the time the final emission scores are determined
g. Vehicle identification number
h. License plate number
i. Test certificate number
j. Vehicle model year, make and type
k. Number of cylinders or engine displacement
l. Transmission type
m. Odometer reading
n. Type of test performed (that is, initial test, first retest or subsequent retest)
(ii) Ambient test conditions
a. Relative humidity (%)
b. Dry-bulb temperature (°F)
c. Atmospheric pressure (MM HG)
d. No correction factor
e. System response time for each instrument (Transport +T90)
(iii) ASM5015 mode
a. ASM5015 final HC running average (AVGHC) (PPM).
b. ASM5015 final CO running average (AVGCO) (%).
c. ASM5015 final NO running average (AVGNO) (PPM).
d. Total ASM5015 horsepower used to set the DYNE (THP5015) (HP).
e. Engine RPM running average corresponding to the final test score.
f. Dilution correction factor (DCF).
(iv) Diagnostic/quality assurance information.
a. Test time (SEC).
b. Mode time (SEC).
c. Vehicle speed (MPH) for each second of the test.
d. Engine RPM running average.
e. Dynamometer load (pounds) for each second of the test.
f. HC concentration (PPM) for each second of the test.
g. CO concentration (%) for each second of the test.
h. No concentration (PPM) for each second of the test.
i. CO2 concentration (%) for each second of the test.
j. O2 concentration (%) for each second of the test (optional).
§ 6. ASM terms and definitions.
HPXXXXYY = The ASM actual horsepower value contained in the look up table for a vehicle being tested (using the ASM5015 or 2525) on a dynamometer with YY inch diameter rollers. The actual horsepower is the sum of the indicated horsepower and the parasitic losses (PLHPZZ-YY).
IHPXXXXYY = The ''indicated'' ASM horsepower value set on the dynamometer.
THPXXXX = The ''total'' horsepower for an ASM test includes indicated, tire losses and parasitics. This value is independent of roll size.
ETW = Equivalent test weight. Weight class of vehicle for testing, defined as curb weight plus 300 pounds. For ASM testing, it is rounded to the nearest 125 pound increment.
GTRL@ZZ MPH-YY = Generic tire-roll interface horsepower losses at ZZ mph on a dynamometer with YY inch diameter rollers.
PLHPZZ-YY = Parasitic losses (horsepower) due to internal dynamometer friction. A value is specific to each individual dynamometer and speed.
AT = 1st curve coefficient used to characterize tire/roll losses. Different values depending on dynamometer roller diameter.
BT = 2nd curve coefficient used to characterize tire/roll losses. Different values depending on dynamometer roller diameter.
CT = 3rd curve coefficient used to characterize tire/roll losses. Different values depending on dynamometer roller diameter.
XXXX = Place holder for ASM test mode, ASM5015 or ASM 2525.
YY = Place holder for dynamometer roll diameter. Usually 8.6 or 20 inches.
ZZ = Place holder for dynamometer speed. Usually 15 mph or 25 mph.
§ 7. Equipment certification procedures.
I. Dynamometer.
A. Load cell verification (if equipped).
This test confirms the proper operation of the dynamometer load cell and associated systems. Weights in the proper range shall be supplied by the system supplier. Weights shall be NIST traceable to 0.1% of point.
(1) Calibrate the load cell according to the manufacturer's direction.
(2) Using a dead weight method, load the test cell to 20%, 40%, 60% and 80% (in ascending order) of the range used for ASM testing. Record the readings for each weight.
(3) Remove the weights in the same steps (descending order) and record the results.
(4) Perform steps A through B two more times (total of three).
(5) Calculate the average value for each weight.
(6) Multiply the average weight from E by the length of the torque arm.
Acceptance criteria: The difference for each reading from the weight shall not exceed 0.1% of full scale.
B. Speedometer verification.
This test confirms the accuracy of the dynamometer's speedometer.
(1) Set dynamometer speed to 15 MPH.
(2) Independently measure and record dynamometer speed.
(3) Repeat at 25 mph.
Acceptance criteria: The difference for each reading from set dynamometer speed shall not exceed 0.2 mph.
C. Parasitic verification.
Parasitic losses shall be calculated using the following equations at 25 and 15 mph. The indicated horsepower (IHPXXXXYY) shall be set to zero for these tests. Using time versus speed data from the system, calculate PLHPYY for 15 mph and 25 mph.
(1) Parasitic losses at 25 mph for a dynamometer with YY diameter rollers.
Where:
DIW = Dynamometer inertia weight. Total ''inertia'' weight of all rotating components in dynamometer.
V30 = Velocity in feet/sec at 30 mph.
V20 = Velocity in feet/sec at 20 mph.
CDT = Coast-down time required for dynamometer to coast from 30 to 20 mph.
(2) Parasitic losses at 15 mph for a dynamometer with YY diameter rollers.
Where:
DIW = Dynamometer inertia weight. Total ''inertia'' weight of all rotating components in dynamometer.
V20 = Velocity in feet/sec at 20 mph.
V10 = Velocity in feet/sec at 10 mph.
CDT = Coast-down time required for dynamometer to coast from 20 to 10 mph.
Acceptance criteria: The difference between the external calculated value and the machine calculated value shall not exceed 0.25 HP (or 6.25 lb. wheel force a 15 MPH and 3.75 lb. wheel force at 25 mph).
D. Verify coast-down.
The coast-down procedure shall use a vehicle off-dynamometer type method or equivalent. Using a vehicle to bring the dynamometer up to speed and removing the vehicle before the coast-down shall not be permitted.
(1) Randomly select an IHP2525 value that is between 8.0 hp and 18.0 hp and set dynamometer PAU to this value.
Coast-down dynamometer from 30-20 mph.
Where:
DIW = Dynamometer inertia weight. Total ''inertia'' weight of all rotating components in dynamometer.
V30 = Velocity in feet/sec at 30 mph.
V20 = Velocity in feet/sec at 20 mph.
IHP2525YY = Randomly selected ASM2525 indicated horsepower.
PLHP25-YY = Parasitic horsepower for specific dynamometer at 25 mph.
(2) Randomly select an IHP5015 value that is between 8.0 hp and 18.0 hp and set dynamometer PAU to this value.
Coast-down dynamometer from 20-10 mph.
Where:
DIW = Dynamometer inertia weight. Total ''inertia'' weight of all rotating components in dynamometer.
V20 = Velocity in feet/sec at 20 mph.
V10 = Velocity in feet/sect at 10 mph.
IHP5015YY = Randomly selected ASM5015 indicated horsepower.
PLHP15-YY = Parasitic horsepower for specific dynamometer at 15 mph.
Acceptance criteria: The measured 30-20 mph coast-down time and the 20-10 mph coast-down time must be inside the window bounded by DET (seconds ±7%.
II. Analyzer system:
A. Analyzer warm-up.
The analyzer shall be turned off and at a room temperature not greater than 41°F for a time period of at least 4 hours.
Analyzer warm-up acceptance criteria. The analyzer shall reach stability in less than 30 minutes at 41°F from start-up. If an analyzer does not achieve stability within the allotted time frame, it shall be locked out from testing. The instrument shall be considered ''warmed up'' when the zero and span readings for HC, CO, NO and CO2 have stabilized, within the accuracy values specified in § 3(c)(2) for 5 minutes without adjustment.
B. Leak rate.
A needle valve teed into the line upstream of the sample pump inlet shall be used to induce a leak which reduces the readings by 3%. Perform a leak check using the manufacturer's recommended procedures. The unit under test shall fail the leak check and prevent further testing until corrective action is performed.
Leak rate acceptance criteria. The analyzer shall not allow a deviation of more than 3% of the readings obtained using the mid-range span gas described in paragraph (d)(3)(iii)(c) of § 4.
C. Flow restrictions.
(1) Using the mid-range span gas described in Paragraph (d)(3)(iii)(c) of § 4 entering the sample probe at atmospheric pressure, take a base reading with no restriction in the line. Insert a throttling valve in the vacuum side of the sampling system. With the gas flowing (still at atmospheric pressure), restrict the sample flow until: (1) the low flow indication is activated, (2) the response time of the slowest NDIR channel exceeds 11 seconds to 90% of the base reading, or (3) the actual gas reading differs from the base reading on any channel by more than 3% of the base reading.
Acceptance criteria: The low flow indication is activated and the response times of all NDIR channels are 13 seconds or less to 90% of the base readings, and the actual gas readings differ from the base readings by 3% of the base readings or less.
(2) If the low flow sensor is activated by pressure (or vacuum), insert A 0-10 PSIG (0-30 in. HG) gauge between the throttling valve and the inlet O the low flow sensor. Use the throttling valve to activate and deactivate the low flow indication. Measure the pressure (or vacuum) at which activation and deactivation occur. Perform this test three times.
Acceptance criteria: The difference between the activation point and deactivation point shall be no greater than 3% of the activation point pressure (or vacuum).
D. Dilution.
The procedure for measuring flow rate dilution shall be as follows:
(1) Set vehicle with 1.6 liter maximum engine displacement at factory-recommended idle speed. OEM configuration exhaust system, transmission in neutral, hood up (a fan to cool the engine may be used if needed). Set idle speed not to exceed 920 RPM. (Set for 900 RPM with a tolerance ± 20 RPM.)
(2) With a laboratory grade analyzer system, sample the exhaust at 40 centimeters depth with a flow sample rate below 320 liters per hour. Allow sufficient time for this test. Record all HC, CO, NO, CO2 and O2 readings. A chart recorder or electronically stored data may be used to detect the point of stable readings.
(3) While operating the candidate analyzer system in a mode which has the same flow rate as the official test mode. Record the levels of HC, CO, NO, CO2 and O2. Ensure that the probe is installed correctly.
(4) Repeat step (II).
Acceptance criteria: The flow rate on the analyzer shall not cause more than 10% dilution during sampling of exhaust of a 1.6 liter engine a normal idle. Ten percent dilution is defined as a sample of 90% exhaust and 10% ambient air. If the difference of the readings between (ii) and (iv) exceed 5% of the average of (ii) and (iv), repeat (ii), (iii), and (iv); otherwise average (ii) and (iv) and compare with (iii). If (iii) is within 10% of the average of (ii) and (iv), then the equipment meets the dilution specification.
E. Analyzer accuracy.
This test confirms the ability of the candidate instruments to read various concentrations of gases within the tolerances required by this specification. The test compares the response of the candidate instrument with that of standard instruments, and also estimates the uncertainty of the readings.
The analyzer shall be zeroed and span gas calibrated using the working gases. The instrument shall be tested using propane, carbon monoxide, carbon dioxide and nitric oxide in nitrogen, with a certified accuracy of ±1%, in the following concentrations: 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% of full scale for the analyzers. Full scale is defined in § 3(c)(3).
(1) Introduce the gases in ascending order of concentrations, through the probe, beginning with the zero gas. Record the readings of the standard and candidate instruments to each concentration value.
(2) After the highest concentration has been introduced and recorded, introduce the same gases to the standard and candidate analyzers in descending order, including the zero gas. Record the reading of analyzers to each gas, including negatives (if any).
(3) Repeat steps A and B for the candidate only, four more times (total of five times).
(4) Calculations:
a. Calculate the average value of each concentration for the readings of the standard instruments.
b. Calculate the mean and standard deviation of each candidate's readings for each concentration. Include both upscale and down scale readings for the same gas concentration. (All calculations may not be possible for zero concentrations.)
c. For each concentration, calculate the difference between the candidate mean and the standard average.
d. For each concentration, compute the following:
(i) Y1 = X + KSD
(ii) Y2 = X - KSD
Where:
KSD = STD DEV * 3.5 for zero and the highest concentration value.
KSD = STD DEV * 2.5 for all other concentration values, and
X = Mean (arithmetic average) of the set of candidate readings.
e. Compute the uncertainty (U) of the calibration curve for each concentration as follows:
(i) U1 = Concentration value - Y1
(ii) U2 = Concentration value - Y2
Acceptance criteria: (1) for each concentration, the differences calculated in Step 3 shall be no greater than the accuracy tolerances specified in § 3(c)(3). (2) for each concentration, the uncertainties, (U1 and U2) shall be no greater than the accuracy tolerances required in § 3(c)(3).
F. Analyzer system repeatability.
This test characterizes the ability of the instrument to give consistent readings when repeatedly sampling the same gas concentration.
(1) Using an 80% full scale gas, introduce the gas through the sample probe. Record the readings.
(2) Purge with ambient air for at least 30 seconds but no more than 60 seconds.
(3) Repeat steps (1) and (2) above four more times.
(4) Repeat steps (1), (2) and (3), introducing the gas through the sample probe.
Acceptance criteria: The differences between the highest and lowest readings from both ports shall not exceed the value specified in § 3(c)(3).
G. Analyzer system response time.
This test determines the speed of response of the candidate instrument when a sample is introduced at the sample probe.
(1) Gas calibrate the candidate instrument per the manufacturer's instructions.
(2) Using a solenoid valve or equivalent selector system, remotely introduce an 80% full scale gas to the probe. The gas pressure at the entrance to the probe shall be equal to room ambient.
(3) Measure the elapsed time required for the instrument display to read 90% of the final stabilized reading for HC, CO, CO2 and NO. (Optional: also, measure the time required for the O2 analyzer to read 0.1% O2). Alternatively, the bench outputs may be recorded against a time base to determine the response time. Record all times in seconds.
(4) Switch the solenoid valve to purge with zero air for at least 40 seconds but no more than 60 seconds.
(5) Measure the elapsed time required for the NO instrument display to read 10% of the stabilized reading in Step (3).
(6) Repeat steps (1), (2) and (3), two more times (total three times).
Acceptance criteria: The response (drop time for O2 and NO. Rise time for HC, CO, CO2 and NO) time shall meet the requirement specified in § 3(c)(2)(X). The response time shall also be within ± 1 second of the nominal response time supplied by the equipment supplier for use in § 5(1)(a)(i)(e).
H. Analyzer interference effects.
The following acceptance test procedure shall be performed at 45°F, 75°F and 105°F conditions, except as noted.
(1) Zero and span the instrument.
(2) Sample the following gases for at least 1 minute. Record the response of each channel to the presence of these gases.
a. 16% carbon dioxide in nitrogen.
b. 1600 PPM hexane in nitrogen.
c. 10% carbon monoxide in nitrogen.
d. 3000 PPM nitric oxide in nitrogen.
e. 75 PPM sulfur dioxide (SO2) in nitrogen.
f. 75 PPM hydrogen sulfide (H2S) in nitrogen.
(3) Water-saturated hot air. The water-saturated hot air shall be drawn through the probe from the top of a sealed vessel partially filled with water through which ambient air will be bubbled. The water shall be maintained at a temperature of 122°F ±9°F. This test shall be performed at only the 75°F, and 105°F conditions.
Acceptance criteria: The interference effects shall not exceed the limits specified in § 3(c)(2)(iii).
I. Electromagnetic isolation and interference.
This test shall measure the ability of the candidate instrument to withstand electromagnetic fields which could exist in vehicle testing and repair facilities. For all tests described below, sample ''low-middle calibration gas'' specified in § 4(d)(3)(iii)(c), at atmospheric pressure, through the sample probe. Record analyzer reading during test periods.
(1) Radio frequency interference test.
a. Use a test vehicle with an engine having a high energy ignition system (or equivalent), a solid core coil wire and a 3/8" air gap. Leave engine off.
b. Locate the candidate instrument within 5 feet of the ignition coil. Gas calibrate the candidate instrument.
c. Sample gas specified above. Wait 20 seconds, and record analyzer readings.
d. Start engine. With the hood open, cycle the engine from idle through 2500 RPM. With the gas flowing record the analyzer readings.
e. Relocate the instrument to within 6 inches of one side of the vehicle near the engine compartment. Repeat Step 4.
f. Relocate the instrument to within 6 inches of the other side of the vehicle near the engine compartment. Repeat Step 4.
Acceptance criteria: The analyzer readings shall deviate no more than 0.5% full scale.
(2) Induction field test. Use a variable speed (commutator type) hand drill having a plastic housing and rated at 3 amps or more. While the analyzer is sampling the gas, vary the drill speed from zero to maximum while moving from the front to the sides of the instrument at various heights.
Acceptance criteria: The analyzer readings shall deviate no more than 0.5% full scale.
(3) Line interference test. Plug the drill used in Part B above into one outlet of A #16-3 wire extension cord approximately 20 feet long. Connect the instrument into the other outlet of the extension cord. Repeat Part B above.
Acceptance criteria: The analyzer readings shall deviate no more than 0.5% full scale.
(4) VHF band frequency interference test. Locate both a citizens ban radio (CB), with output equivalent to FCC legal maximum, and a highway patrol transmitter (or equivalent) within 50 feet of the instrument. While the analyzer is sampling the gas, press and release transmit button of both radios several times.
Acceptance criteria: The analyzer readings shall deviate no more than 0.5% full scale.
(5) Ambient conditions instruments. Upon installation and every 6 months, the performance of the ambient conditions instruments shall be cross checked against a master weather station.
Acceptance criteria: The individual instruments shall be within the tolerance specified in § 3(c)(4).
§ 8. Software specifications and enhanced emission inspection waiver procedure.
(a). Software specifications.
(1) General.
(i) The software shall prompt the test personnel to restrain the vehicle. The test system does not need to have a feedback to detect the presence of the restrain system. (Shop requirement).
(ii) At each calibration called for in § 4(d)(2)(i), the system shall automatically record the date, time, the gas readings for HC, CO, NO and CO2 prior to adjustment to the labeled gas values of the calibration gases, and the gas readings after adjustment. This data shall be readily accessible for purposes of statistical process control analysis.
(iii) Software shall be developed and provided to permit statistical process control procedures to be utilized to determine calibration lengths and intervals and other procedures as specified in § 4(a) and as otherwise determined by the Commonwealth.
(2) Software shall be developed and provided to permit the use of the enhanced waiver procedure described in subsection 8(b) of this appendix.
(3) Enhanced emission inspection equipment software for the Pennsylvania enhanced emission inspection program shall be approved by the Department or its designee prior to installation and use in enhanced emission inspection equipment installed at certified enhanced emission inspection stations.
(4) An emission inspection test report, meeting the requirements of § 177.252(b), shall be generated by the analyzer. A sample is attached as Exhibit A.
(b) Enhanced emission inspection waiver procedure.
(1) After failing initial I/M test, vehicle will receive vehicle repair form.
(i) This form must be completed by person repairing vehicle.
(ii) Completed form will include repairs done and cost of such repairs.
(2) When repairs are completed, vehicle shall be returned to a certified emission inspection.
(3) When retest is begun, repairs made and cost of repairs will be entered into analyzer.
(i) If vehicle fails retest, screen will prompt inspector ''Do you wish waiver?''
(ii) If no, retest will be aborted.
(iii) If yes, inspector will be presented with analyzer waiver screen.
(iv) This screen will ask for certified repair technician number (it may be read by bar code reader or manually entered).
(4) The vehicle inspection information data base (VIID) will be queried and the repair data, including cost, will be examined.
(5) The VIID will review the transmitted data.
(i) The repairs will be compared with the cause of the failure to ensure that they were appropriate to the failure.
(ii) the cost of the repairs will be examined to ensure that cost meets minimum requirements for a waiver.
(6) If the VIID determines that the waiver requirements as specified in § 177.281 and § 177.282 have not been satisfied, the VIID will return a ''NO'' to request for waiver.
(7) If all waiver requirements under § 177.281 and § 177.282 are met, the VIID will transmit a unique waiver transaction approval number to the certified repair technician approving the waiver.
(7) The waiver sticker may then be placed on the vehicle.
(8) Copies of all repair receipts must be kept by the inspection station issuing waiver.
(i) All waiver repair receipts will be examined by quality assurance officers during normal record audits.
(ii) Waiver repair receipts may also be examined at any time by quality assurance officers or other qualified Commonwealth employes.
§ 9. Hardware specifications.
(a) General.
(1) Tamper control
--Keys allowed Yes --Solenoid required Optional --Switches required Yes --Secure user floppy No --Allow DOS access No --Gas analyzer Yes --Detect power off Yes (2) Computer requirements
Processor (minimum): Pentium OS system: Latest version of commercially
available OSRAM required (minimum): 16 MB Minimum RAM upgrade capability 32 MB Secured floppy drive (3.5"): 1 Hard drive size (minimum): 1.2 GB 2nd HD expansion required: Yes 2nd 3.5" expansion required: Yes CD required (4X minimum): Optional 16 BIT sound card (minimum) Optional Modem speed (minimum): 28.8 Free slots required: 2 Mouse upgrade: Optional (3) Ports/connectors:
--Parallel (minimum): 2 --Serial (free port) 1 (BAUD 300-115.2) 111 MAX (DB25 connector): Yes --Special serial port:* 1 (4) Special COMM PORTS CPC
--12V switched power Yes --12V protected Yes * An additional RS232 serial port shall be provided specifically to conduct either a gas cap test or a tank integrity test (pressure test) and a purge test when the appropriate test(s) or alternate tests are developed and approved by the Federal Environmental Protection Agency (EPA).
(5) Bar code scanner 2D --User replaceable Yes (6) Printer (Laser): 1 --User replaceable: Yes (7) Keyboard: 101 --User replaceable Yes (8) Video CRT: 14" --User replaceable Yes --Memory (minimum): 1 MB --Resolution: SVGA (9) Other devices required:
--Opacity Future --OBD II Port Future upgrade --Gas cap tester Yes --Tachometer number 3 --Conventional 1 --Non-intrusive 1 --OBD II 1, when available Notes:
A. Operating system (OS) must be upgradable to Windows 95, if required by Department at a later date.
B. Manufacturer must demonstrate a working unit to the Department of Transportation or designee. Unit must provide minimum capabilities listed with costing for all options, including future upgrades.
(b) Gas analyzers.
(1) Bench performance (minimum):
Pennsylvania (East Coast)Specification
--Measured gases (standard): 4 --NO Standard --Humidity compensated Standard --PEF range (.XX format) 47-56 --Warmup time 15 minutes --Ranges
HC PPM 0-10,000 CO% 0-14.0 CO2% 0-18.0 NO PPM 0-5,000 O2% 0-25.0 --Zero set two point Yes (2) Sample system
--Dual probes required: Yes --25` sample hose required: Yes (3) Calibration system
--Zero gas required Yes --Calibration frequency 3 days --Calibration Single --Second gas Optional --Third gas Open --Calibration gas specifications
Accuracy +/- 1% Blend tolerance +/- 5% Type, blend TRI/QUAD* Values
CO% 3.5% HC propane 2,000 CO2 14.0 NO 2,000 (4) 3 ports shall be provided for calibration gas: 1 port shall be for zero gas, 1 port shall be used for calibration gas and 1 port shall be for a spare. Hardware shall be included to activate the third port.
(5) Vented storage required N/S (6) ASM areas will use QUAD blend, idle test areas will use tri blend
(c) ASM dynamometer
(1) Base specification Pennsylvania --Upgrade Standard (2) Identification Plate N/S (3) MAX vehicle test weight 9000 GVWR (4) Absorber accuracy +/- 2% (5) Base inertia 2000 +/- 40 Inertia simulation range 2-6 --Mechanical increments 500 --Electrical increments 1 (6) Roll diameter 8.5-21 (7) Testable track width 30-100 (8) Coast down CK 3 day (9) Vehicle weight measurement No (10) Vehicle restraint monitor No (11) Aximum allowed incline 5% (12) Automatic lift Yes --Power failure backup No (13) Remote control N/S (14) Fan required No --Remote control N/S (15) Augmented braking No (13) 12V PC controlled power switched Notes:
The fan in the Pennsylvania/East Coast specification is a shop requirement.
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