Detcon FP-424C Bedienungsanleitung

Model FP-424C4-20 mA Combustible Gas Sensor (0-100% LEL)Operator’s Installation & Instruction ManualMay 18, 2010 • Document #2243T • Version 3.8CA

d) Replace the plug-in transmitter module and the junction box cover.5.6 Remote Mounting ApplicationsSome sensor mounting applications require that t

Material Requirements* Digital volt meter* Jewelers type screwdrivera) Declassify the area around the sensor.b) Remove the junction box cover from the

ment and will, in most cases, not require significant adjustment on start up. However, Detcon recommendsthat a complete calibration test and adjustmen

8.0 FAULT SUPERVISIONModel FP-424C sensors incorporate fault circuitry which monitors both the detector loop and the bridgevoltage of the catalytic

Unstable Output/ Sudden Spiking/Nuisance Alarms1. Check condulet for accumulated water. 2. Check transmitter and Terminal PCB for abnormal corrosion

11.0 WARRANTYDetcon, Inc., as manufacturer, warrants each new LEL plug-in detector (PN 370-201600-000), for a two yearperiod under the conditions des

Table of Contents1.0 Description2.0 Principle of Operation3.0 Application4.0 Specifications5.0 Installation6.0 Start-up7.0 Calibration8.0 Fault Superv

1.0 DESCRIPTIONDetcon Model FP-424C combustible gas detection sensors are designed to monitor ambient air for com-bustible hydrocarbons in the lower

1.4 Explosion Proof EnclosureThe transmitter electronics are packaged in a cast aluminum explosion proof enclosure and given a bakedepoxy paint finis

2.1 CharacteristicsThe detector elements maintain good sensitivity to combustible hydrocarbons in air in the lower explosive limitrange, as shown in

When calibrating with one gas (Cal Gas) and scale sensitivity is required for a different gas (Target Gas) usethe following calculation to determine c

4.0 SPECIFICATIONSMethod of DetectionCatalytic detector diffusion/adsorptionMeasurement Range0-100% LEL (lower explosive limit) Accuracy/Repeatabilit

5.2 Remote Mount ConsiderationsIf the application requires that the sensor head be remotely mounted away from the transmitter, maximumline resistance

5.4 Local Electrical CodesSensor and transmitter assemblies should be installed in accordance with all local electrical codes. Useappropriate conduit