EMS 5001 Manuel utilisateur
Portable Exhaust Gas Analyzer
Operators Manual Rev.9
Model # 5001 (4 & 5 Gas)
Model # 8000 (Wireless)
Emissions Systems, Inc.
480 Wright Dr.
Lake In The Hills, IL. 60156
Voice & Fax: 1-847-669-8044
Website: www.emsgas.com
Email Address: [email protected]
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Table of Contents
1. Technical Data .......................................................................... Page 3
2. General Information.................................................................. Page 4
3. LED and Button Operation Model 5001................................... Page 5
4. Rear Panel Description............................................................ Page 6
5. Gas Analyzer Preparation........................................................ Page 7
6. Gas Analyzer Operation........................................................... Page 8-9
7. Error Codes............................................................................. Page 10
8. Calibration................................................................................. Page 11
9. Maintenance............................................................................. Page 12-19
10. Diagnostic Accessories & Diagnostics...................................... Page 20-21
11. Warranty.................................................................................. Page 22
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Power: 10 -16 VDC
Ranges: HC: 0 - 2000 ppm (0-20,000 ppm High Range)
CO: 0 - 10%
CO2: 0 - 20%
O2: 0 - 25%
NO: 0 - 5000 ppm ( Nitric Oxide ) *
·Warm up: Less than 5 minutes
·Display resolution: HC: 1 ppm vol.
CO: 0.01% vol.
CO2: 0.1% vol.
O2: 0.01% vol.
NO: 1ppm*
·Digital display: Four 0.5” LCD
·Accuracy ( Bar 97 EPA ASM ) HC: 4 ppm HC
CO: 0.06% CO
CO2: 0.3% CO2
O2: 0.1% O2
NO: 25 ppm*
·Drift: Zero and span drift are less than ± 0.6% of full scale for the first hour
and less than ± 0.4% of full scale per hour thereafter.
·System response time: Bench: 1.5 Sec/25 ft. hose 5 sec. to 90% of final reading
·Ambient conditions: 35F (2C) to 120F (45C), rel. humidity 0-98%
·Sample hose: 25 feet ( 7.5 m) with QD coupling /200 F Degrees Max.
·Sample probe: Stainless steel 1200 Degrees F ( replaceable flex tip )
Mass: Approx.: 10 LBS. ( 4.5 Kg )
Technical Data
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General Information
Congratulations on your purchase of an EMS Exhaust Gas Analyzer. This product is
designed to assist you in the process of diagnosing driveability issues. With proper care and
maintenance this product will provide accurate information for many years to come.
Figure 1 highlights the features and buttons available on the Model 5001 front display
area. If you purchased a 4-Gas analyzer the “O2/NOX” button is inactive. The “Z”, “P” and “C”
buttons will be described in detail later in this manual.
IMPORTANT NOTE: Moisture is the biggest concern for prolonged good operation of
the gas analyzer, always allow the analyzer to dry out by running the unit with ambient air. This
may take only one auto shut down cycle or as much as 1 hour or more! The analyzer will not
be harmed by powering up and letting it sit in standby mode till ready to use. Running the
analyzer with ambient air in-between sampling and after a day of testing, is the best thing to do
for prolonged life of the bench and components not allowing the carbon build up due to mois-
ture!
Figure 1
5
LED and Button Operation Model 5001
Figure 3 shows the control buttons on the front of the gas analyzer:
1. The “O2/NOx” button is used on 5-Gas analyzers only. The O2/NOx button switches
the display from reading Oxygen to reading NOx. The default following warm-up or
restart is O2. Switching from O2 to NOx, press the O2/NOx button, hold down until the
decimal point disappears and then release the button. The analyzer will now display
NOx.
2. The “Z” button has several functions.
a. Zeroing the gas analyzer as needed during use.
b. Restarting the pump following automatic shutdown.
c. Used along with the “C” button to begin calibration and changing values.
3. The “P” button is used to print a snapshot of gas reading information. Aparallel
printer will need to be connected to the 25 pin connector on the back of the analyzer.
4. The “C” button is used to calibrate the gas analyzer. The calibration procedure will
be explained in detail later in this manual.
Figure 3
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234
1.
2.
3.
4.
Figure 2
Figure 2 shows the LED display from the lower left corner of the gas analyzer:
1. Power LED: This LED will illuminate when power is applied to the analyzer.
2. Saving LED: This LED is not currently used.
3. Sampling LED: This LED is illuminated when the pump is operating.
4. NOx LED: This LED indicates a NOx cell is present (5-Gas Analyzer only).
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Rear Panel Description
Figure 4 shows the view from the back of the analyzer. The specific details of each item
are described below, starting from the upper left corner of the analyzer and working clockwise.
Sample Hose Connection: The sample hose connection uses a quick disconnect
coupler. The is helpful for storage of the analyzer and maintenance of the sample hose.
Display Control Switch: The display switch has two basic positions, Computer and
Display. The switch should normally be in the lower position “Display”. If you are using
PC software for display or recording, the switch should be in the up position. Note: If
the analyzer is not displaying gas values after warm-up, the display switch may
be in the computer position.
Computer Connection: This is used to connect the analyzer to the PC.
Power Cord: Connect to the appropriate voltage supply source.
Fresh Air Port: The analyzer uses this for fresh air sampling. Do not plug.
Drain Hose: This hose will drain moisture collected during the sample process.
External Filter: This is the primary sample filter. Filter maintenance will be discussed in
the Maintenance section of this manual.
Printer Connection: Connect to an approved parallel printer.
Figure 4
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Gas Analyzer Preparation
Getting started is simple. Figure 5 shows the items you should have received in the
shipping container. Note: This description applies to the Model 5001 analyzer with a
display, see Page 13 for instructions on setting up a Model 8000 bluetooth wireless
analyzer.The first step is assembling the sample hose. Once the sample hose is assembled,
connect the hose to the sample hose fitting on the back of the analyzer.
Figure 5
The next step is providing power to the analyzer. The analyzer should be connected to
a 12v DC power source. You have several options:
1. Cigarette Lighter Connection - Figure 6
2. Cigarette lighter to battery connection with adapter - Figure 7
3. AC to DC Power Supply - Figure 8 EMS-5256
The Power LED in the lower left corner of the display will light once voltage is applied.
Figure 6 Figure 7 Figure 8
8
Gas Analyzer Operation
Immediately after applying power, the analyzer will display 8’s (Figure 9) for a few
seconds and then flash dashes (Figure 10). This starts the analyzer warm-up mode and will
continue for approximately 5 to 10 minutes, depending on ambient temperature. Once the
warm-up mode is complete, the analyzer will go into the gas sample mode (Figure 11) and the
Sample LED will turn ON. Note: If the display only shows decimal points (Figure 12),
check the “Display/Computer” switch on the back of the analyzer. The switch should be
in the display position. Disconnect power before changing the switch position.
Figure 9 Figure 10
Figure 11Figure 12
Once the analyzer has completed the warm-up process the sample hose can now be
connected and the probe placed in the tailpipe.
Caution: Exhaust gases pass through the gas analyzer and vent through its ex-
haust tubing. Use the analyzer in a well vented area.
Note: Gas analyzers are designed for diagnostics and verification of repairs. The
sample probe should be removed from the tailpipe after taking readings to prolong
analyzer life and save on maintenance costs.
The pump will continue to operate as long as the CO2 level is above 3%. The pump will
automatically shut-off after the CO2 level has been below 3% for approximately 15 minutes.
The pump can be turned back on by depressing the “Z” button.
Caution: Monitor the clear hose between the filter assembly and the cabinet. If
moisture appears in the tubing, remove the probe from the tailpipe and disconnect the
sample hose from the analyzer immediately. Use compressed air to remove moisture
from the sample hose. Operate the analzyer without the exhaust hose connected, until
the moisture is removed. It may be necessary to replace the filters. Once the lines are
dry, normal operation can continue.
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Gas Analyzer Operation
Manual Zero: Any time after warm-up, you can zero the gas readings and calibrate O2
by pressing the “Z” button. If the pump is off, it will automatically start. Note: The sample
probe should be removed from the tailpipe, when the unit is being zeroed.
Automatic Zero: The analyzer will automatically zero as needed. If the analyzer does
not sense exhaust gases, the automatic zero procedure will begin. The Sample LED will flash
during this process. If exhaust gases are present, the analyzer will wait until the gases are
clear.
Low Flow Warning: If gas flow into the bench becomes restricted due to clogged filters
or restricted sample hose, the “HC” display will show “LO” (Figure 13). The other gas dis-
plays will be blank. Check the sample hose for restrictions or kinks. If no problems are found,
check the filters. Begin with the External filter and then check the Internal filter. Keep in mind
the gas flows through the inside to the outside of the filter. The filter may look clean on the
outside, but be clogged on the inside.
Figure 13
Printing: Connect a parallel printer to the 25 pin connector on the back of the analyzer.
Press the “P” button to begin the printing process. Note: To avoid print communication
problems, connect and power on the printer first, then provide power to the analyzer.
Computer Connection: PC software can enhance the diagnostic benefits of the ana-
lyzer. The analyzer can be connected to a PC using a 9 pin serial communications cable. EMS
offers software that will display the sample gases, graph data and record information. Using
the portable gas analyzer with a laptop will help diagnose problems that only occur when
driving. The EMS software will be discussed later in this manual.
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ERROR CODES
O2 Sensor Error Code: Any time after warm-up, you can get a O2 sensor error code
that will be shown with an “E” in the CO window, and a number “800” in the O2/NOX window.
When this error message is displayed, a new O2 sensor needs to be installed. See mainte-
nance for the O2 sensor replacement.
NOX Sensor Error Code: Any time after warm-up, you can get a NOX sensor error
code that will be shown with an “E” in the CO window, and a number “1000” in the O2/NOX
window. When this error message is displayed, a new NOX sensor needs to be installed. See
maintenance for the O2 sensor replacement.
Optical Bench Error Codes (HC,CO,CO2): Any time after warm-up, you can get an
error code that will be shown with an “E” in the CO window, and a number “100” in the O2/NOX
window indicates HC out of range, “200” in the O2/NOX window indicates CO out of range,
“400” in the O2/NOX window indictes “CO2” out of range. When this error message is dis-
played, the analyzer MUST be sent to EMS for a bench diagnosis. Please send the unit to 801
N. Harrison St., Algonquin IL. 60102, and indicate in writing what the error code is that oc-
curred.
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