Honeywell EC-P2 User manual

Honeywell EC-P2
Instruction Manual
CHARGE BATTERY WHEN NOT IN U SE
Gas Detector
EC-P2

Honeywell EC-P2 Instruction and Installation Manual 3
Copyright 2009 by Honeywell International Inc.
Release J July 2008
While this information is presented in good faith and believed to be accurate,
Honeywell disclaims the implied warranties of merchantability and fitness for a
particular purpose and makes no express warranties except as may be stated in
its written agreement with and for its customers.
In no event is Honeywell liable to anyone for any indirect, special or consequential
damages.The information and specifications in this document are subject to change
without notice.
Manning is a registered trademark of Honeywell International Inc.
Other brand or product names are trademarks of their respective owners.
Honeywell Analytics Inc.
405 Barclay Boulevard
Lincolnshire, Illinois 60069
Tel: [phone]
Toll Free: 1 800 538 0360
Fax: [phone]
www.honeywellanalytics.com
[e-mail]
www.manningsystems.com

Honeywell EC-P2 Instruction and Installation Manual
4
Introduction
This manual has been prepared to help in the use of the Honeywell EC-P2 Portable
Gas Detector.
This manual must be carefully followed by all individuals who have or will
have the responsibility for using or servicing this device.
Warranties made by Honeywell Analytics Inc. with respect to this equipment will be
voided if the equipment is not used and service in accordance with the instructions
in this manual. If in doubt about a procedure, please contact Honeywell Analytics
Inc. before proceeding.

Honeywell EC-P2 Instruction and Installation Manual 5
Introduction ....................................................................................4
1 System Description............................................................................7
System Specifications ..........................................................................8
2.1 Operating the Sensor...............................................................8
2.2 Changing the Target Gas using SMART-CELL Technology..9
2.3 Response Test ........................................................................10
2.4 Sample Inlet Port....................................................................10
2.5 Response/Recovery Time......................................................10
2.6 Interference Gases.................................................................11
2.7 Alarm Functions.....................................................................11
2.8 Display Resolution.................................................................11
3 Maintenance .....................................................................................12
3.1 Periodic Maintenance ...........................................................12
3.2 Sensor Life .............................................................................12
3.3 Calibration .............................................................................12
To Enter ZERO / SPAN Mode .................................................13
Zero Calibration ......................................................................13
Span Calibration .....................................................................13
To Exit ZERO / SPAN Mode....................................................13
3.4 Troubleshooting......................................................................13
4 Programming and Advanced Features...........................................15
4.1 Alarm Setpoints, Functions...................................................15
To Enter CAUT / WARN / ALRM Mode ...................................15
Warning Setpoint ....................................................................15
To Exit CAUT / WARN / ALRM Mode......................................15
To Enter CAUT / WARN / ALRM Mode ...................................15
Warning Function....................................................................16
To Exit CAUT / WARN / ALRM Mode......................................16
4.2 Display Variables ....................................................................16
To Enter AVG / BLANK Mode..................................................16
AVG Variable ...........................................................................17
To Exit AVG / BLANK Mode ....................................................17
4.3 Sample Mode..........................................................................17
Taking a sample ......................................................................17
Programming sample mode variables.....................................17
To Enter SAMP / MEAS / CLEAR Mode .................................17
SAMP Variable ........................................................................18
To Exit SAMP / MEAS / CLEAR Mode....................................18
4.4 Data Logging ..........................................................................18
EC-P2 software installation:....................................................18
Table of Contents

Honeywell EC-P2 Instruction and Installation Manual
6
Data Logging with the Honeywell EC-P2: ...............................18
Working with the “EC-P2” program:.........................................19
4.5 Analog Output ........................................................................19
Changing the full scale range on EC-P2:................................20
To Enter RANGE Mode...........................................................20
Adjusting the RANGE .............................................................20
To Exit RANGE Mode .............................................................20
Appendix A ..........................................................................................21
Available SMART-CELLs..............................................................21
Appendix B ..........................................................................................22
SMART-CELL Cross-Sensitivity Table (Interference Gases) .22
Limited Warranty .................................................................................24

Honeywell EC-P2 Instruction and Installation Manual 7
1 System Description
The Honeywell EC-P2 is a portable, battery operated instrument for the measurement
of gas concentrations in ambient air.
The Honeywell EC-P2 can be converted from one target gas to another by simply
plugging in a different SMART-CELL for the desired target gas (takes about 30
seconds). This allows one instrument to detect a number of different gases. All
calibration and alarm setpoint data is stored on the individual SMART-CELL so
reconfiguration is not necessary when changing target gases. Extra SMART-CELLs
should be kept on the optional sensor keeper when not in use to keep them “warmed
up” and ready for immediate use.
The Honeywell EC-P2 utilizes two different batteries to insure that you’ll never be
without power when you need it. The primary power source is a “D” size alkaline
battery housed in the handle. It will run the unit approximately 75 hours. When
this battery is removed or dead, the unit will switch to its standby power source,
an internal rechargeable NiCad battery, which will run the unit approximately six
hours. When not in use, the unit should be plugged into the charger to keep this
standby battery charged. If desired, the unit can be run continuously when plugged
into the charger.
The Honeywell EC-P2 also has advanced capabilities such as data logging to an
Excel spreadsheet, 0 to 1.0 Volt DC analog output capability, and a sampling mode
for taking a single reading in a controlled, repeatable manner.
Outlet Tube
Sampling Wand
Assembly
Data LoggerPort
Standby Battery
Recharge Receptacle
Primary Battery
Figure 1. Basic Parts of the Honeywell EC-P2 Sensor

Honeywell EC-P2 Instruction and Installation Manual
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System Specifications
Primary Power:
Alkaline D cell battery, 75 hours operation.
Note: An audible alarm single beep every 60 seconds
indicates that either the Alkaline D cell battery is low or
the internal rechargeable NiCad battery is low.
Standby Power:
Internal rechargeable NiCad battery, 6 hours
operation.
Note: An audible alarm single beep every 60 seconds
indicates that either the Alkaline C cell battery is low or
the internal rechargeable NiCad battery is low.
Charger: 120 VAC plug-in charger for internal standby battery
Display: Backlit LCD
Pump: Miniature internal diaphragm type, flowrate 0.5
SCFH
Alarms:
Two concentration alarms, zero drift caution, Low flow
and Low battery alarms.Alarms displayed on LCD and
indicated by audible beeper.
Standard Accessories:
Storage case, 10” extension wand, battery charger,
filter material, datalogging software, RS-232 output
cable (DB9 connector)
Optional Accessories: Analog output cable. Sensor Keeper for storage of
additional SMART-CELLs
Sensor Type: Target gas selective electrochemical SMART-CELL
Accuracy: Sensor dependant but generally ± 5% of reading
Repeatability: ± 1% full scale
Operating Ambient Temperature
Range: 0° to +120° F
Storage Temperature: Recommend storing on the charger in an air
conditioned office
Weight: 3 lbs. (shipping weight), 1.8 lbs. (detector only)
Dimensions: Approx 3.5” x 5” x 8.5”
Outputs:
RS-232 output of stored gas values.
Analog output 0 to 1.0 VDC (requires optional
analog output cable)
Memory:
12,000 data points, storage interval between points
programmable at 1, 5, 10, or 15 minutes. Typical
capacity: 8 days at 1 minute storage interval
2.1 Operating the Sensor
The Honeywell EC-P2 is shipped ready for use. To power up the instrument, push
the PWR button. The power up sequence displays first the self check, the sensor
full scale value, the downscale caution level, warning concentration setpoint, alarm
concentration setpoint, output ranges, software version, then the normal operating
screen.
The unit will then display the instantaneous gas concentration and is ready for
use.

Honeywell EC-P2 Instruction and Installation Manual 9
The normal operating screen displays the information as shown in Figure 2.
The Honeywell EC-P2 is designed to avoid accidental shut-off of the power. To turn
the unit off, the PWR button must be held down for approximately three seconds.
Release the button after the “Power Down” message appears.
2.2 Changing the Target Gas using SMART-CELL Technology
The Honeywell EC-P2 can easily be changed to sense another target gas by
installing the SMART-CELL for the desired target gas. Each SMART-CELL contains
all the calibration and alarm setpoint information on its internal memory chip, so
recalibration or reprogramming is not necessary when changing the Honeywell
EC-P2 from one gas to another. This procedure can be performed with the unit
powered on or off (see Figure 3).
Unscrew the two stainless steel thumbscrews and remove the black inlet1.
/ outlet manifold lid from the back of the unit.
To remove the existing SMART-CELL, grip the sides of the cell and pull2.
it straight out.
Install the desired SMART-CELL by gently inserting it into the socket. Notice3.
that the SMART-CELL is keyed so it cannot be inserted incorrectly.
Replace the manifold and hand tighten the thumbscrews.4.
Verify proper flow through the sampling wand using the flowmeter5.
provided.
Note:
Extra SMART-CELLS should be kept on the optional sensor keeper when
not in use to keep them “warmed up” and ready for immediate use. The
sensor keeper is powered by an Alkaline “D” size battery which should
be replaced every 6 months.
For a variety of target gases, see page 19 for a list of available SMART-CELLs.
Contact Honeywell Analytics if the desired target gas is not listed, as new cells
may be available.

Honeywell EC-P2 Instruction and Installation Manual
10
MENU SMPL
PPM
NH3
OFF
0
P
A
Power
BATTERY IN USE
P= Primary (“D” cell)
S= Standby(Internal NiCad)
Flashing indicates low battery
CURRENT GAS CONCENTRATION
(Blinking indicates sensor overrange)
TARGET GAS
SMART-CELL dependent
ADVANCEDFEATURES ONLY
Do not push for normal operation
ALARM INDICATION CODE
Blank = No alarm condition present
C= Caution—Cell has excessive zero downdrift
W = Warning—Gas concentration has exceeded warninglevel
A= Alarm—Gas concentration has exceeded alarm level
P= Pump trouble
Lg = Data logging in progress
Battery Light
Figure 2. Normal Operating Screen
2.3 Response Test
Prior to use, the unit should first be tested for proper response. With the detector
operating, the unit should be exposed to a sample of the target gas.The display should
show an increasing concentration. If not, do not use it for field measurements.
2.4 Sample Inlet Port
The Honeywell EC-P2 is provided with a quick disconnect flexible extension wand.
It will work with or without the wand. When using the extension wand, the internal
walls must be kept dry. Water on the walls of the tubing can potentially absorb the
target gas. To dry, allow the unit to pump dry, ambient air for 15 minutes.
2.5 Response/Recovery Time
Under normal conditions, the instrument will reach 90% of final value within two
minutes. This is dependent on concentration and temperature.
Recovery time for the sensor depends on duration and concentration of exposure.
Short exposures of concentrations at the lower end of the target gas range result in
rapid recovery. Long exposures to levels above the middle of the target gas range
or short exposures to levels exceeding the target gas range can extend recovery
times to hours. Repeated exposures above the target gas range will reduce cell life
and should be avoided.

Honeywell EC-P2 Instruction and Installation Manual 11
2.6 Interference Gases
The Honeywell EC-P2 is generally quite specific to the target gas, but depending
on the target gas, other gases may cause a reading. See Appendix B for a listing
of potential interference gases for the various SMART-CELLs.
2.7 Alarm Functions
The Honeywell EC-P2 provides both visible and audible gas concentration alarms
and system alarms. An alarm condition will be displayed on the normal operating
screen as described on page 8.
In addition to the alarm indication code in the left side of the screen, an alarm
message will flash intermittently on the screen, the audible beeper will sound and
the ACK button will appear. Pushing the ACK button will silence the beeper and
stop the display flashing. The Alarm Indication Code will remain on the left side of
the screen until the alarm condition clears.
Alarm setpoints are stored on the individual SMARTCELL and can be changed by
the user as described in Section 4.
Note:
An audible alarm single beep every 60 seconds indicates that either the
Alkaline D cell battery is low or the internal rechargeable NiCad battery
is low.
2.8 Display Resolution
The Honeywell EC-P2 displays gas concentration with a resolution that depends
upon the range of the unit. Full scale ranges of 0-4.00 or below will provide resolution
of 0.01. Ranges from 0-5.0 up to 0-49.9 will provide resolution of 0.1. Full scale
ranges above 50 will have a resolution of 1.
CAUTION
DO NOT BLOCK INLET
OR OUTLIET PORTS
INLET
OUTLET
TEST UNIT PRIOR TO USE
SMART-CELL Sensor
Filter Material
Sensor alignment pin
Sensor alignment groove
Manifold lid
Inlet fitting
Sampling Wand
Outlet tube barb fitting
Thumbscrews (loosen to remove manifold lid)
Figure 3. Manifold Assembly

Honeywell EC-P2 Instruction and Installation Manual
12
3 Maintenance
3.1 Periodic Maintenance
It is essential that the test and calibration schedule be adhered to. Honeywell
Analytics recommends the following maintenance schedule:
Response test prior to each use. Expose sensor to a sample of the target•
gas to verify proper sensor response and alarm functions.
Calibration should be performed with certified calibration gas every six•
months, and all tests must be logged.
Check filter material every six months. Replace if dirty or moist.•
If the optional sensor keeper is used for extra SMART-CELLs, change the•
sensor keeper battery once every 6 months. Use only alkaline “D” size
batteries.
3.2 Sensor Life
The electrochemical SMART CELL is extremely reliable, but the following can cause
the cell chemicals to become depleted:
A period of time•
Exposure to high temperatures•
Exposure to high concentrations of the target gas•
Exposure to high moisture•
When the cell becomes depleted, the unit will give no indication of failure other than
that the sensor will not respond. For this reason it is absolutely essential that these
units be exercised with a gas sample on a regular basis.
Typical sensor life under normal use is two years or more.When the SMART-CELL will
no longer calibrate properly, simply purchase a new SMART-CELL and replace.
3.3 Calibration
Calibration is recommended every six months in normal use. Each SMART-CELL
stores its calibration and alarm setpoint information on its own memory chip. When
the SMART-CELL is plugged into the Honeywell EC-P2, this information is used
by the sensor. The SMART-CELL can be field calibrated by the user or returned to
Honeywell Analytics for factory calibration.
The calibration procedure requires the use of a bypass tee to allow the gas to be
drawn into the flow cell without creating variable pressure or dilution problems.
Calibration gas cannot be fed into the flow cell under pressure.
When applying calibration gas use the bypass tee as shown in Figure 4 on page
11. The flowrate of calibration gas should be high enough that at least 0.5 SCFH is
flowing out of the calibration tee.This can be measured with the supplied flowmeter
and insures that air is not being drawn into the unit and diluting the calibration
gas.

Honeywell EC-P2 Instruction and Installation Manual 13
Note:
The unit may be zeroed without spanning it; however, never span the unit
without rst zeroing it.
The following procedure will calibrate the SMART-CELL.
To Enter ZERO / SPAN Mode
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push and hold the unnamed button (second from left) first, then Push2.
and hold the Menu button. Hold both buttons until the screen goes blank
(2 seconds). Release both buttons and the unit is now in Programming
Mode.
Push the SENS button and the unit is now in the zero/span mode.3.
Zero Calibration
Be sure the unit is in clean air or apply zero air for two minutes.4.
Push ZERO button.5.
Push SAVE button to save the new zero calibration.6.
Span Calibration
Push SPAN button.7.
Apply span gas for two minutes.8.
Push INC button (increase) or DEC button (decrease) until the display9.
matches the span gas concentration.
Push SAVE button to store new span calibration.10.
To Exit ZERO / SPAN Mode
Push DONE button twice slowly to get back into normal operation mode.11.
3.4 Troubleshooting
The detector does not start: Check to see that a fresh battery is installed. Both
the primary and standby batteries must be discharged for this problem to occur.
Plug the charger into the Honeywell EC-P2 to charge the standby battery. Wait 10
minutes and retry.
The detector does not respond to the target gas: Verify the proper flow rate
using the supplied flowmeter. Perform calibration. If sensor won’t calibrate, the
SMART-CELL may be depleted. Contact Honeywell Analytics for a replacement
SMART-CELL.
Pump alarm: This will occur if the pump motor stops or if an internal pressure
sensor detects blockage of the inlet. Check that the internal filter is not clogged or
wet and that the inlet tube is clear.

Honeywell EC-P2 Instruction and Installation Manual
14
External flowmeter indicates no flow: Verify that pump is running. Check that the
manifold screws are tight and the extension wand connection is tight.
Unit does not respond when keys are pressed: Press and hold all four buttons
for five seconds. This will reset the Honeywell EC-P2. Turn the unit back on by
pressing the PWR button.
High reading won’t clear: When the sensor is exposed to very high gas
concentrations, it takes a relatively long time for the sensor to clear. Leave the unit
running in a clean environment for a few hours to clear the sensor. If it doesn’t clear
after six hours, the sensor may have been damaged. Contact Honeywell Analytics
for a replacement SMART-CELL.
Unit is in alarm with gas reading of 0 ppm: Check the alarm setpoints and
alarm functions as described on page 12. Verify that alarm is not programmed as
a downscale alarm, and that the setpoint is above zero.
Calibration gas flowmeter
Vent through flowmeter
Bypass Tee
Calibration gas bottle
(useonly Certified Calibration Gas)
1.0
.8
.6
.4
.2
LPM AIR
CAUTION
DO NOT BLOCK INLET
OR OUTLIET PORTS
INLET
OUTLET
TEST UNIT PRIOR TO USE
Figure 4. Calibration of the Honeywell EC-P2 Sensor using a Bypass Tee

Honeywell EC-P2 Instruction and Installation Manual 15
4 Programming and Advanced Features
4.1 Alarm Setpoints, Functions
The Honeywell EC-P2 has three adjustable alarm setpoints. These setpoints
are stored on each SMART-CELL. The Caution setpoint is to warn of excessive
negative zero drift. The WARNING and ALARM setpoints are to warn of potentially
dangerous target gas concentrations. The following procedure will change the
WARNING setpoint.
To Enter CAUT / WARN / ALRM Mode
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push and hold the unnamed button first, then Push and hold the Menu2.
button. Hold both buttons until the screen goes blank (two seconds).
Release both buttons and the unit is now in Programming Mode.
Push the ALRM button and the unit is now in the CAUT / WARN / ALRM3.
mode.
Warning Setpoint
Push WARN button.4.
Push S.P. button (setpoint).5.
Push INC button (increase) or DEC button (decrease) until the display6.
matches the desired warning setpoint. Notice the minus sign above the
arrow if the setpoint is below zero.
Push SAVE button to store new warning setpoint.7.
Push DONE button to return to Alarms mode.8.
To Exit CAUT / WARN / ALRM Mode
Push DONE button twice slowly to get back into normal operation mode.9.
The Caution and Alarm setpoints are programmed in the same manner, except for
step four above in which you would push either the CAUT or ALRM button. The
function of each alarm can be selected to alarm on increasing gas concentration
(UP arrow), alarm on decreasing gas concentration (DOWN arrow), or be disabled
(off). The following procedure will set the Warning function to alarm on decreasing
concentration (Useful for Oxygen Depletion warning).
To Enter CAUT / WARN / ALRM Mode
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push and hold the unnamed button first, then Push and hold the Menu2.
button. Hold both buttons until the screen goes blank (two seconds).
Release both buttons and the unit is now in Programming Mode.
Push the ALRMS button and the unit is now in the CAUT / WARN / ALRM3.
mode.

Honeywell EC-P2 Instruction and Installation Manual
16
Warning Function
Push WARN button.4.
Push FUNC (function) button.5.
Push SELECT button while viewing the arrow in the lower left hand corner6.
of the screen to toggle through the following three possibilities:
UP arrow — Warn on increasing concentration (gas goes higher•
than setpoint).
DOWN arrow — Warn on decreasing concentration (gas goes•
lower than setpoint).
Blank — warning function turned OFF.•
Push SAVE button when the DOWN arrow is displayed to store new7.
warning function.
Push DONE button to return to Alarms mode.8.
To Exit CAUT / WARN / ALRM Mode
Push DONE button two times slowly to get back into normal operation9.
mode.
The Caution and Alarm functions are programmed in the same manner, except for
step four above in which you would push either the CAUT or ALRM button.
4.2 Display Variables
The Honeywell EC-P2 has two adjustable display variables.These variables control
signal conditioning of the LCD display. Variables are stored on each SMART-CELL.
The AVG (Average) variable determines the number of one second samples to
average to calculate the displayed value. The lower the averaging value, the faster
the display will change and the more “wiggle” will be displayed. The BLANK (zero
blanking) variable controls the lowest reading that will be displayed. This is to
eliminate the misleading display of signals within the zero noise of the sensor. The
following procedure will change the AVG variable.
To Enter AVG / BLANK Mode
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push and hold the unnamed button first, then Push and hold the Menu2.
button. Hold both buttons until the screen goes blank (two seconds).
Release both buttons and the unit is now in Programming Mode.
Push the MORE button.3.
Push the DISP (display) button and the unit is now in the AVG / BLANK4.
mode.

Honeywell EC-P2 Instruction and Installation Manual 17
AVG Variable
Push AVG button.5.
Push INC button (increase) or DEC button (decrease) until the display6.
matches the desired value.
Push SAVE button to store new AVG variable.7.
To Exit AVG / BLANK Mode
Push DONE button twice slowly to get back into normal operation mode.8.
The Blanking variable is programmed in the same manner, except for step 5 above
in which you would push the BLANK button.
4.3 Sample Mode
The Sample Mode feature allows the user to take a measurement using a predefined
repeatable method to eliminate user “interpretation” of a gas concentration that is
changing. This is similar to a digital scale, for example, so the exact same reading
will be taken regardless of who is taking it.
The measuring sequence used in Sample Mode is as follows:
Draw a• Sample for a user programmed sampling time to allow unit to
stabilize to the existing gas concentration.
Measure• the gas concentration and average it for a user programmed
measuring time.
Clear• the gas concentration to below a user programmed recovery value
before allowing another cycle to start. (Unit should be moved to fresh air
during the clear time.)
Taking a sample
To take a sample, locate the detector at the desired sample location, and push the
SMPL (sample) button on the normal operation screen. The unit will count down
the Sample time, followed by the Measure time, at the end of which the average
value will be displayed.
Note the displayed sample value. Pushing the CLEAR button will return the unit to
the normal operation screen once the gas concentration is below the predefined
recovery value. The unit is now ready to take another sample if desired.
Programming sample mode variables
The sample mode variables are Sample, Measure and Clear as described above.
The following procedure will change the Sample variable.
To Enter SAMP / MEAS / CLEAR Mode
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push and hold the unnamed button (second from left) first, then Push2.
and hold the Menu button. Hold both buttons until the screen goes blank
(two seconds). Release both buttons and the unit is now in Programming
Mode.

Honeywell EC-P2 Instruction and Installation Manual
18
Push the MORE button.3.
Push the SMPL (sample) button and the unit is now in the SAMP / MEAS4.
/ CLEAR mode.
SAMP Variable
Push SAMP (sample) button.5.
Push INC button (increase) or DEC button (decrease) until the display6.
matches the desired value. The display is in minutes and seconds.
Push SAVE button to store new SAMP variable.7.
To Exit SAMP / MEAS / CLEAR Mode
Push DONE button twice slowly to get back into normal operation mode.8.
The Measure and Clear variables are programmed in the same manner, except for
step five above in which you would push the MEAS or CLEAR button.
4.4 Data Logging
The Honeywell EC-P2 can log periodic gas concentration readings to be downloaded
to a file which can be read by Microsoft Excel or other popular spreadsheet
applications.The EC-P2 will store instantaneous gas values every one, five, 10, or 15
minutes. Multiple sessions can be logged and then downloaded as separate files.
EC-P2 software installation:
The Honeywell EC-P2 is supplied with a CD containing the “Honeywell EC-P2”
program. It will run on Windows 98, Windows 2000 or Windows XP. To install the
program, place the disk in your CD drive. The CD should automatically begin the
installation process. Follow the prompts as they appear on your screen. Accepting
the default directory locations is recommended for most installations. If the CD does
not automatically start, click on “My Computer” and then your CD drive. Double-click
on the file named “Setup.exe.”
Prior to your first datalogging session it is recommended that you connect the
Honeywell EC-P2 to your computer with the data logging program running. The
computer can then set the time in the EC-P2 to match its own clock.
Data Logging with the Honeywell EC-P2:
To Start the Data Logging Session
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push the MENU button.2.
Push the LOG button and the unit is now in the CLEAR / INT / START3.
mode.
If the CLEAR button is available, that means there is data currently stored4.
in the unit. If desired, you can erase the data already in the unit by pushing
the CLEAR button. (If you don’t push CLEAR, each data logging session
can be downloaded as a separate file).

Honeywell EC-P2 Instruction and Installation Manual 19
Push INT button (interval) to cycle through the choices for how often to5.
log a data point. Stop when the desired interval is displayed. Notice how
much time can be covered with the remaining free memory.
Push and hold the START button until the screen goes blank (two seconds)6.
to begin a new data logging session. The unit will now display the gas
concentration. The Lg symbol in the left side of the display indicates that
the unit is logging data. If you watch this symbol carefully, you will see it
change to an “s” each time a data point is stored.
To Stop the Data Logging Session
Push the MENU button.7.
Push the LOG button.8.
Push and hold the STOP button until the screen changes to CLEAR / INT9.
/ START / MODE (two seconds).
Push the DONE button to get back into normal operation mode.10.
Working with the “EC-P2” program:
The “EC-P2” program downloads the logging files from the Honeywell EC-P2. It
does not display the data. The files it downloads can be opened by or imported into
Excel, Lotus 123 or other programs for graphing and analysis.
Turn on the Honeywell EC-P2 and connect it to your PC using the RS-232 cable
supplied. From Windows START menu, select “PROGRAMS,” then “Honeywell EC-
P2,” and then “EC-P2”. As soon as you start the “EC-P2” program, your computer
will try to establish a connection to the Honeywell EC-P2. If the Honeywell EC-P2
is currently logging data, the “EC-P2” program will automatically stop the logging
function.
The program contains two tabs, one marked “Download” and one marked “Configure”.
Review the settings on the “Configure” tab, making changes as necessary.
From the “Download” tab, review the Link Status block in the lower right hand corner.
It should indicate “Link OK”. Link Trouble can be caused by selection of the wrong
Com port in the Configure Tab, improperly connecting the RS-232 cable, or not
turning on the Honeywell EC-P2.
When you are ready to transfer data from the Honeywell EC-P2 to your PC, click on
“get data” and the files will be downloaded to your computer. Note the file names in
the destination window so you can locate the files.
These files can now be opened with Excel (use .csv filename), Lotus 123, or other
user supplied programs.
4.5 Analog Output
The Honeywell EC-P2 has a 0 to 1.0 volt DC analog output capability when used
with the optional analog output cable. With the analog output cable plugged into
the communication port of the EC-P2, the user can measure the voltage between
the two wires and correlate it to gas concentration.The voltage output will be linear
between zero and the full scale range of the SMART-CELL as programmed below.

Honeywell EC-P2 Instruction and Installation Manual
20
Each SMARTCELL has a wide range of choices of full scale values.
Note:
The full scale range as programmed below only affects the analog output
and the data logging full-scale output.
The display will always cover the entire operating range of the SMART-CELL.
Changing the range can affect the display resolution for some SMART-CELLs.
Changing the full scale range on EC-P2:
To Enter RANGE Mode
Push power button to turn unit on. Wait for power up sequence to finish1.
(30 seconds).
Push and hold the unnamed button (second from left) first, then Push2.
and hold the MENU button. Hold both buttons until the screen goes blank
(two seconds). Release both buttons and the unit is now in Programming
Mode.
Push the MORE button.3.
Push the DISP (display) button.4.
Push the MORE button and the unit is now in the RANGE mode.5.
Adjusting the RANGE
Push RANGE button.6.
Push INC button (increase) or DEC button (decrease) until the display7.
matches the desired full scale range.
Push SAVE button to store new full scale range.8.
To Exit RANGE Mode
Push DONE button twice slowly to get back into normal operation mode.9.