Detectores de Fuga de Gases y Flama, Analizadores, Dispositivos de Alarma y Gases de Calibracion
SENSIDYNE 820-0206-02-0249
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Detector de Gas sensidyne SensAlert Plus para Acetileno 0-50% LEL (sensor SA+infrarrojo). Transmisor de 24VDC de 3 hilos con pantalla LCD gráfica. Gabinete a prueba de explosión. Aprobado por NEC y CEC. Clase I Div 1 GruposA, B, C y D

Parte# con Opciones:        820-0206-02-0249
Precio con Opciones:        Favor de solicitar precio via Email   

Opciones:    

Opción de Relé
(1) Opción de Relé para Sensidyne SensAlertPlus
Adaptador de Calibración
(2) Adaptador de Calibración para Sensidyne SensAlertPlus

  Tiempo de Embarque 2 Semanas  ]

Highest Reliability and Function

Predictive Sensor End-of-Life Indication
Missing or Non-functional Sensor Indication
Sensor Test-On-Demand, with On-board Gas Generator

Intrinsically Safe Sensor Head

Shop Calibrate and Hot-swap Gas Sensors in Classified Areas
Mount Sensor up to 100 ft./30 m. Away Without Rigid Conduit

Intelligent SensAlert Plus Sensors

Auto-recognition and Set-up from Sensor Memory Provides
Operating Parameters and Diagnostics for All Plus Transmitters

International Performance Approvals

Performance Tested and Certified to FM and ATEX Standards
Unrestricted Hazardous Classified Area Installation and Operation

Flexible Installation or Retrofit

2-Wire and 3-Wire Transmitters with Enclosure Options
Non-intrusive Configuration and Maintenance Interface
Remote Sensor / Gassing, Duct Mount and Sample Draw
Configurable Alarms: Fault Conditions and Test-on-Demand

Increased Reliability

Intelligent and dependable firmware monitors the intelligent Plus sensor for changes that could effect performance. Sensor condition and maintenance notifications are displayed locally and can be sent to a controller or facility monitoring system via on-board relays, a virtual relay (assignable to a fault current), RS-485 Modbus, or HART. This thorough monitoring provides increased reliability.

Simple to Install & Maintain

The SensAlert Plus Intrinsically Safe sensor head can be remote mounted up to 100 feet (30m) from the transmitter providing greater flexibility to position the transmitter in an personnel-accessible location while positioning the sensor closer to potential hazards. A wide range of sensors, accessories and remote gassing/sampling systems further simplify maintenance and provide installation flexibility.

Reduced Cost of Ownership

Shop or field calibrate, then swap sensors under power to minimize maintenance and calibration time. A large backlit alphanumeric display with a non-intrusive user interface allows for configuration, setup, and data review without declassifying a hazardous area. SensAlert Plus is a universal transmitter allowing facility standardization across gas types, sensor technologies, and sensor ranges.

Special Calibration Considerations Zeroing The Sensor

It is recommended that zero-air or zero-nitrogen be used to calibrate the zero on this sensor. It is important that the zero-gas be at the same temperature as the sensor, zeroing with the gas and sensor at different temperatures will significantly affect both the baseline value and sensor accuracy. Complete zeroing instructions are provided in the SensAlert Plus User Manual. A 3 to 5 minute pre-exposure is recommended prior to zeroing the sensor.

Span Calibration

It is recommended that this sensor be calibrated at the full scale concentration of 50 %LEL C 2 H 2 . It is important that the span gas be at the same temperature as the sensor, calibrating with the gas and sensor at different temperatures will significantly affect the sensor accuracy. Complete span calibration instructions are provided in the SensAlert Plus User Manual.

NOTE: Due to the sensor C 2 H 2 IR absorption characteristics, it is highly recommended that the zero and span be calibrated one right after the other. Zeroing the sensor without a subsequent span calibration can affect the sensor accuracy.

Test-on-Demand Cell

There is no Test-On-Demand cell available for this sensor.

Technical Specifications
Sensors
Sensors Electrochemical, Infrared, Catalytic Bead
Test-On-Demand Modules Type C and Type S
Electrical
Voltage/Power: 2-Wire 24 VDC (18-30 VDC): 20 mA
3-Wire 24 VDC (12-30 VDC): 90mA
With Opt. Relay Card and combustible sensors: 300mA
Output and load resistance with 24 VDC at transmitter terminals: 3 wire 4-20: 600 Ω minimum
2-wire 4-20 mA: 350 Ω minimum
Relay: 3-Wire Only - One SPDT Configurable Relay
Optional Card: Three (3) SPDT Configurable Relays
Contact Ratings: 5 Amps at 115 VAC or 30 VDC Resistive
Communication Link: 4-20mA current, non-isolated 2 or 3-wire options, RS-485 (Modbus), HART
Controls
Magnetic Keypad: OK, << (Go Back), ▲, ▼
Security: Password Protected Configuration Menu
Display
LEDs: Four (4) Red, corresponding to magnetic keypad, and Alarm Relays when equipped.
Graphic LCD: 128 by 64 pixel screen (backlight on 3-wire transmitters); displays Concentration and Measuring Units, Gas Name or Type, Sensor Span, Date and Time, Tag Number and System messages or Warnings
Enviromental
Temperature (Transmitter): -40°F to 158°F /-40°C to 70°C
Humidity (Transmitter): 0-90% RH, non-condensing
Temperature (Sensor): See Sensor Data Sheets
Humidity (Sensor): See Sensor Data Sheets
Moisture Resistance: IP54; IP56 with optional rainshield
Enclosure Options
NEMA 4X Enclosure: Polycarbonate
Dimensions: 7.5” W x 12.6” H x 6.2” D
190 mm W x 320 mm H x 157 mm D
Weight Range: 5.5-7.2 lbs /2.5-3.3 kg
Explosion-proof Enclosure: Copper-free, Cast Aluminum
Physical: 5.5” W x 12.3” H x 4.6” [6.4”] D
140 mm W x 312 mm H x 117 mm [163 mm] D.
Weight Range: 6.1-8.7 lbs / 2.8-4.0 kg
Approval Ratings
Explosion Proof: NEC and CEC Class I Div 1, Grps A, B, C, D;
Class II Grps E, F, G; Class III T4
Flame proof: ATEX EEx d[ia] IIC T4 II 2 [1] G
Non-Incendive (Enclosed Break) : NEC and CEC Class I Div 2, Grps A, B, C, D;
Class II Grps E, F, G; Class III T4
ATEX EEx nC [ia] IIC T4 II 3 [1] G
Intrinsic Safety NEC and CEC Class I Div 1, Grps A, B, C, D;
Class II Grps E, F, G; Class III T4
ATEX EEx ia IIC T4 II 1 G
CE Mark: ATEX Directive 94/9/EC
IMETRO IEC 60079-0:2006, IEC 60079-11:1999, IEC 60079-15:2007
Acetylene - Infrared (0 – 50 %LEL) Specifications
Minimum Indicated Concentration 2 %LEL
Repeatability ± 5% of Reading
Accuracy Highest of ± 1 %LEL or 10%-of-Reading
Baseline Drift < 1 %LEL change per month (typical)
Response Time (Rise) 2 T 60 : < 16 seconds
Response Time (Rise) 2 T 90 : < 45 seconds
Recovery Time (Fall) 2 T 10 : < 90 seconds
Temperature Range -20° to 55°C (-4° to 131°F)
Humidity Range (continuous) 0–95 %RH, non-condensing
Expected Sensor Life 5 years from Shipping Date
Recommended Calibration Flow Rate 500 to 1000 cc/min
SensAlert 4-Channel Controller Compatible
1 When unit is calibrated and serviced at recommended intervals.
2 Room Temperature.


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