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Instructions Sierra Monitor Corporation, Modèle 2050-00

Fabricant : Sierra Monitor Corporation
Taille : 207.76 kb
Nom Fichier : 2050-60_manual.pdf
Langue d'enseignement: en
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OPERATION 4 3.1 Introduction 4 3.2 Alarms 4 3.3 Outputs 4 4. ALARM CALIBRATION 5 4.1 Factory Alarm Calibration 5 4.2 Frequency of Alarm Calibration Check 5 4.3 Alarm Calibration Check Process 5 4.4 Equipment Required 6 4.5 Alarm Calibration Procedure 6 5. SERVICE 5.1 Sensor Replacement 7 6. INSTALLATION 8 6.1 Gas Sensor Module Locations 8 6.2 Mounting 8 6.3 Wiring 8 6.4 Power Supply 8 6.5 Alarm Devices 8 7. ALARM CONFIGURATION 10 8. SPECIFICATIONS 11 9. ACCESSORIES AND REPLACEMENT PARTS 11 10. LIMITED WARRANTY 11 Table of Contents Instruction Manual 1.0 PRODUCT DESCRIPTION 1.1 Introduction The Model 2050 Ammonia and Model 2060 Refrigerant/ Halocarbon Gas Monitors are continuous duty, low cost stationary monitors for detection of high levels (50-500 PPM) of ammonia and halocarbon ("freons") refrigerant gases. See the specifications page for a full list of available applicable halocarbons This manual provides instructions for both the 2050 and 2060 series Gas Monitors, including the relay versions. 1.2 Application These monitors are primarily used in and around freezers, refrigerators, and compressor rooms to warn of leaks and dangerous levels of these gases. 1.3 Configuration An alarm is activated when the concentration of gas exceeds the user-adjustable level. An alarm condition activates the alarm light on the front of the monitor and generates an output signal. On Models 2050-00 and the 2060-00 the output signal a TTL (Transistor-Transistor- Logic signal) can activate a remote alarm through one of Sierra Monitor’s Alarm Panels. (The Model 2102 Dual Channel Alarm Panel can be connected up to 500 feet from the monitors. ) The models can be configured with a 0.5 amp, dry contact relay. The monitors are housed in a polystyrene enclosure that is suitable for installation in freezer, refrigerator or other applications. Test connections and adjustment controls are located on the outside of the enclosure and are easily used, even when the operator is wearing hand protection. The Model 2050 Ammonia monitor has a factory alarm setpoint of 100 ppm NH3. This setpoint is user adjustible in the field over a range of 50 to 500 ppm NH3. The Model 2050 calibration can be checked with Hydrogen gas. The Model 2060 Halocarbon monitor can be calibrated with carbon monoxide and the factory setpoint varies for the specific type of halocarbon present. The Model Gas TTL Relay 2050-00 Ammonia X X 2060-00 Halocarbons X X Table 1.1 Gas Monitor Configurations factory setpoint for R12 is 500 ppm while the setpoint for R134 a is 50 ppm. See the specifications for more details. The Model 2050 / 2060 is cross sensitive to other combustible gases. If combustible gasses in excess of 50 ppm are expected in the area please contact Sierra Monitor to determine amount of cross-sensitivity expected for the specific combustible gas. It is not recommended to use this unit in areas with combustible gases present. Figure 1.1 Outline View - 2050/2060 Series Page: 1 2050/2060 Gas Monitors (5/04) Instruction Manual 1.4 Temperature Range The Model 2050 and 2060 have temperature compensated circuitry to provide stabilization in temperatures ranging from -4o to 158oF. However, for optimum operation the unit should be calibrated at the normal temperature expected for the sensor location. 1.5 Semiconductor-Type Sensor A solid-state semiconductor-type sensor and associated electronic circuitry ensure trouble-free, long-term operation. All the electronic circuitry needed to operate the monitor, except the DC input power, is contained in a compact unit. There are no pumps, filters, or chemical cells to replace or maintain. Except for periodic calibration to verify the alarm setting, no attention is required after installation. The user may adjust the alarm level by applying a different calibration gas concentration. A sensor self-check feature will flash the alarms on and off alternatively should the sensor fail (open circuit). The alarm flash includes LEDs, audible alarm, relay or alarm signal as applicable. 1.6. Remote Alarm Available If a remote alarm is desired, Sierra Monitor’sAlarm Panels, the Model 2102 Dual Channel Alarm Panels can be connected up to 500 feet away from the monitors. 2050/2060 Gas Monitors (5/04) Page: Instruction Manual 2.0 QUICK START 2.1 Overview The Gas Sensor Module has been supplied factory calibrated and ready for immediate installation and operation. An installer familiar with installation and operation of gas detection products can use this section to begin immediate use of the monitor. 2.2 Wiring Each module requires four-conductor wiring (two wires for power and two wires for the signal). 2.2.1. Model 2050-2060 Series The Model 2050-2060 series are designed to mount on any indoor vertical surface. Mount the monitor in the desired location. -T...

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Alarme incendie - 2060-10 (207.76 kb)

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