Honeywell EC-P2 instruction manual Interference Gases, Alarm Functions, Display Resolution

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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.

 

Thumbscrews (loosen to remove manifold lid)

Sampling Wand

Outlet tube barb fitting

OUTLET

 

TEST UNIT PRIOR TO USE

 

Filter Material

 

INLET

Inlet fitting

CAUTION

 

DO NOT BLOCK INLET

 

OR OUTLIET PORTS

Manifold lid

SMART-CELL Sensor

Sensor alignment groove

Sensor alignment pin

Figure 3. Manifold Assembly

Honeywell EC-P2 Instruction and Installation Manual

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Contents Honeywell EC-P2 Page Page Introduction Table of Contents Analog Output Basic Parts of the Honeywell EC-P2 Sensor System DescriptionOperating the Sensor System SpecificationsChanging the Target Gas using SMART-CELL Technology Sample Inlet Port Response/Recovery TimeResponse Test Interference Gases Alarm FunctionsDisplay Resolution Calibration MaintenancePeriodic Maintenance Sensor LifeZero Calibration TroubleshootingTo Enter Zero / Span Mode To Exit Zero / Span ModeCalibration of the Honeywell EC-P2 Sensor using a Bypass Tee To Exit Caut / Warn / Alrm Mode Programming and Advanced FeaturesAlarm Setpoints, Functions To Enter Caut / Warn / Alrm ModeDisplay Variables To Enter AVG / Blank ModeSample Mode Samp Variable To Exit Samp / Meas / Clear ModeEC-P2 software installation Data LoggingWorking with the EC-P2 program Analog OutputTo Exit Range Mode Changing the full scale range on EC-P2 To Enter Range ModeAdjusting the Range Available SMART-CELLs Appendix aNH3 H2S NO2 SO2 Hcho SMART-CELL Cross-Sensitivity Table Interference GasesNone means there is no interference Exclusions Limited WarrantyHoneywell EC-P2 Instruction and Installation Manual Page Page Find out more Contact Honeywell Analytics Americas
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EC-P2 specifications

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