Detcon FP-624C Manuel d'utilisateur

Detcon MicroSafe™FP-624C Combustible Gas Sensor (0-100% LEL)Operator’s Installation & Instruction ManualMay 18, 2010 • Document #2246 • Revision 7

d)Position gold plated jumper tabs located on the connector board in accordance with desired Form C drycontact outputs: NO = Normally Open; NC = Norma

f) If applicable, set the RS-485 ID number via the two rotary dip switches located on the preamp board (see figure5). There are 256 different ID numbe

3.5.6 Remote Mounting ApplicationsSome sensor mounting applications require that the gas sensor head be remotely mounted away from the sensortransmit

3.6.1 Remote Mount Bridge Voltage SetupIf the sensor has been installed using the remote mounting configuration as described in section 3.5.6, the sen

h) Exit back to normal operations by holding the programming magnet over “PGM 2” for 3 seconds, or automati-cally return to normal operation in 30 sec

Model FP-624C Combustible Gas Sensor PG.15MethylethylketoneCyclohexaneBenzeneHydrogen SulphideMethyl n-propylketoneToluene2,3-DimethylpentaneTrieth

a) First, enter the programming menu by holding the programming magnet stationary over “PGM 2” for 30 sec-onds until the display reads “VIEW PROG STA

a) First, enter the programming menu by holding the programming magnet stationary over “PGM 2” for 30 sec-onds until the display reads “VIEW PROG STA

a) Verify the current calibration gas level setting as indicated by the programming status menu. To do this, followthe instructions in section 3.9 and

3.9 STATUS OF PROGRAMMING, ALARMS, TARGET GAS, CALIBRATION GAS, CALIBRATION LEVEL, RS-485 ID, AND SENSOR LIFEThe programming menu has a programming st

Table of Contents3.0 Description3.1 Principle of Operation3.2 Application3.3 Specifications3.4 Operating Software3.5 Installation3.6 Start-up3.7 Targe

magnet to make an adjustment to “PGM 1” to increase or “PGM 2” to decrease the display reading until thereading is equal to the desired alarm set poin

Fail-Safe/Fault SupervisionModel FP-624C MicroSafe™ sensors are programmed for fail-safe operation. Any of the following fault conditionwill activate

This is the trip point for the first alarm.Register #High Byte Low Byte40004 Alarm 2 SetpointThis is the trip point for the second alarm.Register #Hig

Reg40002 Data Lo 07 7 0000 0111Reg40003 Data Hi 00 0 0000 0000Reg40003 Data Lo 0A 10 0000 1010Reg40004 Data Hi 00 0 0000 0000Reg40004 Data Lo 14 20 00

Excessive Span Drift or Slow Response 1. Check Heater Voltage Setting (should be 2.7V C-Style and 2.2V J-Style) and check heater voltage at the sensor

3.15 SPARE PARTS LIST613-010000-000 Sensor rain shield613-120000-000 Sensor splash guard943-000006-132 Threaded Calibration Adapter 612-820000-000 LE

3.18 SOFTWARE FLOW CHARModel FP-624C Combustible Gas Sensor PG.26NORMALOPERATIONCALIBRATIONPGM1 (3) PGM2 (3)PGM1 (M) PGM2 (M)PGM1 (3)SET ALM1 @

3.0 DESCRIPTIONDetcon MicroSafe™ Model FP-624C, combustible gas sensors are non-intrusive“Smart” sensors designed to detect and monitor combustible g

3.0.3 Base Connector BoardThe base connector board is mounted in theexplosion proof enclosure and includes: themating connector for the control circu

3.1.2 CharacteristicsThe detector elements maintain good sensitivity to combustible gases in air in the lower explosive limit range, as shown inthe r

3.2.2 Response to Different GasesAn attractive feature of the catalytic detector elements is their almost universal response to lower explosive limit

c) Alarm 2 Leveld) Target gas selection (gas K factor)e) Calibration gas selection (cal K factor)f) Calibration Levelg) Set Bridge Volts3.4.1 Normal

3.4.3.6 Calibration Level AdjustmentThe Calibration level is adjustable from 10% to 90% LEL. The menu item appears as: “CalLevel @ ##%”3.4.3.7 Se

Ventilation- Normal ventilation or prevailing wind conditions can dictate efficient location of gas sensors in amanner where the migration of gas clou