Manuale d’uso / di manutenzione del prodotto MANTS420 del fabbricante GM
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Model TS420 Oxygen Deficiency Detector The information and technic al data disclosed in this document may be used and dissemin ated only for the purposes and to the extent specificall y authorized in writing by General Monitors.
i Model TS420 WARRANTY STATEMENT General Monitors warrant s the Model TS420 to be free from defe cts in workmanship or material under normal use an d service within two (2) years (sensor cell s one (1) year) from the date of shipment.
Model TS420 ii System Integrity Verification General Monitors missi on is to benefit society by providing solutions through in dustry leading safety products, services and systems t hat sa ve lives and protect capital resources from the dangers of hazardous flam es, gases and vapors.
Model TS420 iii Periodic Testing/Calibration of Field Devices Periodic testing/calibratin g should be performe d per the manufa cturers’ recommendations a nd instructions.
Model TS420 Quick Start Guide iv N I T O R S E N E R A L H A N D T I G H T E N O N L Y (GREEN/Y ELLOW) FRAME GROUND LOOP- (WHITE) LOOP+ (RED ) Ø1.75" M O D E C A L 4.
Model TS420 Quick Start Guide v Intrinsically Safe Barriers In order for the TS420 to be used with cl assified equipment inside of the hazardous area, it is necessary for the customer to purchase either a Galvanic or Zener Diode Ba rrier, which should be mounted in the non-classified area betwee n the TS420 and the facilities’ control room.
Model TS420 Quick Start Guide vi NOTE - Power must remain disconnected until all wiring co nnections are made. The absolute maximum distance betwee n the TS420 and the power supply is 8000 feet (243 8 meters).
Model TS420 Quick Start Guide vii 3. Calibrate the Detector. Activating the “ CAL ” switch will automati cally disable the external alarm circuits by fixing the analog output current to 3.
Model TS420 Quick Start Guide viii NOTE - If the unit fails to calibrate a flashing “ MO DE ” LCD will be displayed. The sensor must see “clean” air for at least fifteen (15) minutes b efore a second calibration is attempted by reapplying the magnet.
ix Model TS420 Table of Contents WARRANTY STATEMENT ..........................................................................................i System Integrit y Verification ............................................................................
Model TS420 x Table of Figures Page Figure Q-A Outline and Di mensional Dr awing ...................................................................... iv Figure Q-B Wiri ng Diagram .....................................................................
1 Model TS420 1.0 Introduction 1.1 General Description The Model TS420 is a 4-20mA, loop-powered Oxyge n Deficiency detector used for monitoring Oxygen levels. The micro-processor based electr oni cs process information at the sen sor site and are contained within a corrosio n and solvent resistant plastic housing.
Model TS420 2 This page left intentionally blank.
Model TS420 3 2.0 Detector Assembly 2.1 Sensor Assembly General Monitors use s a two-electrode electroc hemical cell (Figure 2) to provide a stable an d accurate gas detector. Figure 2 Oxygen Deficiency Sensor Assembly The oxygen sensor is of the self-powered, diffusion limited, metal air battery type.
Model TS420 4 2.2 Control Electronics The Model TS420’s electronics are co ntained within a plastic housing so that se nsor information can be processed at the point of detection. The Model TS420 provid es a 4-20 mA output signal proportional to 0 to 25% V/V O 2 full-scale gas con centration at the detector.
Model TS420 5 3.0 Installation 3.1 Receipt of Equipment All equipment shipped by General Mo nitors is packed in shock ab sorbing containers, which provide considerable p rotection against physical damage. The cont ents should be carefully removed and checked a gainst the packing slip.
Model TS420 6 3.3 Installation Instructions The TS420 is shipped without the sen sor installe d. The sensor must be installed into the detector and calibrated for prop er operation. S ee Section 4.5 for installation instructions and Section 4.3 for calib ration instruction s.
Model TS420 7 3.4 Wiring Connections The two wires at the base of the TS420 provide a 4-20mA loop- po wered output. The red wire is the “loop +” lead and the white wire is t he “loop -” lead (Figure 4). A third gree n/yellow wire is provided for frame ground.
Model TS420 8 4.0 Operation 4.1 Applying Power Before applying power to the system for the first time, all wiring con nections should be checked for correctness. The sensor should be all owed to stabilize prior to calibration. The stabilization time should be one (1) hou r for all sensors.
Model TS420 9 4.2 Operating Modes The TS420 has four distinct operating mode s: St art-up, Normal Operation, Calibration and Fault. The mode is indicated by both the analog output and the LCD display.
Model TS420 10 CALIBRATION INDICATOR CAL MODE Magnet Applied ❑ ■ Magnet Recognized ■ ❑ Cal Proceeding ✹ ✹ Figure 6 Flow Diagram NOTE - If the unit fails to calibrate a flashing “MODE” LCD will be displayed.
Model TS420 11 NOTE – Calibrating the TS420 in norm al atmospheric air may introduce a cons iderable error due to the affects of temperature and humidity. Ambient temperatu re and humidity can affect the amount of oxygen in the atmosphere (see Fi gure 9).
Model TS420 12 Remove paper liner from gasket, if present CALI BRATION PLUG CALI BRATION CUP 4. Examine the sensor and ensure that it is the correct gas type for y our application. 5. Align the arrow on the sensor label with the notch on the TS420 body.
Model TS420 13 Figure 11, Calibration Kit with Bottle 6. Screw on TS420 sensor cap. 7. Apply power to the unit and allow the sensor to stabilize prior to initial calibration. The stabilization time should be at least one (1) hou r for all sensors. 8. Calibrate new sensor (see Section 4.
Model TS420 14 5.0 Appendix 5.1 Specifications 5.1.1 System Specifications Sensor Type: Electrochemical cell Typical Life (sensing element): 2 years in normal air Warranty : Two years for the electron.
Model TS420 15 Intrinsically Safe Parame ters U i /V MAX = 35VDC I i /I MAX = 100mA C i = 0 L i = 500 µH Input Power: 10 to 35VDC range; 3.5 to 22mA loop powered Output Current: (600 Ω max. @ 24VDC) (120 Ω max. @ 10VDC) Signal Range 3.5 to 22mA Fault 3.
Model TS420 16 5.1.5 Intrinsically Safe System Requirements NOTE - Refer to control drawing 45217 Rev A. (Section 5.2.2) The TS420 is approved as intrinsi cally safe on its own (entity approved).
Model TS420 17 N I T O R S E N E R A L H A N D T I G H T E N O N L Y (GREEN/YELLOW) FRAME GROUND LOOP- (WHITE) LOOP+ (RED) Ø1.75" M O D E C A L 4.
Model TS420 18 5.2.2 Control Dra w ing Figure 13 Control Drawing.
Model TS420 19 5.2.3 Sample Installation Figure 14 Sample Installation T A 5 0 2 A T R I P A M P L I F I E R 4 5 1 6 0 - 1 3 / 4 " N P T J U N C T I O N B O X A S S Y T S 4 2 0 T O X I C G A S D E T E C T O R M T L 7 0 7 + S H U N T B A R R I E R W I R I N G P E R A N S I / I S A - R P 1 2 .
Model TS420 20 5.2.4 Junction Boxes Figure 15 10252 Round Aluminum Junction Box Figure 16 31305-2 Aluminum Junction Box 1 2 3 4 5 6 7 8 9 1 0 C A L F G 4 - 2 0 m A C B U S S - C B U S S + + 2 4 V C O .
Model TS420 21 Figure 17 45160-1 Plastic Junction Box, NPT; 45 160-2 Plastic Junction Box, M20 5.2.5 Splash-Guard Figure 18 70631-2 Splash - Guard.
Model TS420 22 5.2.6 Accessories Figure 19 45170-1 Flow Block Figure 20 45147-1 Flow Block Retainer 5.2.7 Calibration Accessories Figure 21 914-152 Calibration Plug Figure 22 1400152-1 Calibration Cup.
Model TS420 23 5.3 Ordering Information TS420 - 3 0 0 - 101 - 1 0 Junction Box: 0 = None 1 = 45160-1 Junction Box – Plastic NPT 3 = 10252 Junction Box – Round, Aluminum.
Model TS420 24 5.4 Calibration Schedule for Problem Environments Detector Serial Number:__ ______________________ Location:____________________ _ 1) Installation and preliminary calibration. Re cord date after prelim inary calibration is performed: Date:______________ _ 2) 24-hour calibration.
Model TS420 25 5.5 Spare Parts & Accessories TS420 Spare Parts The Model TS420 has potted electroni cs, therefore, there are no replacement boards available for this unit.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il GM MANTS420 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del GM MANTS420 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso GM MANTS420 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul GM MANTS420 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il GM MANTS420, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del GM MANTS420.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il GM MANTS420. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo GM MANTS420 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
