Audible alarm

Check for plant integrity/flammable leaks periodically or continuously on-line, as appropriate Install appropriate fire/smoke detection, audible alarms Provide adequate fire suppression systems Deal with mishaps such as spillage immediately... 

CR Yellow Alert Gas leak in MSM Audible alarm, yellow flashing light on fire gas panel Uncertain could be real 1. Accept alarm 2. Cz area technician 3. Make PA announcement 4. Determine which gas detector is in alarm (its location) Suspend current operation. Scan panels for flashing yellow or red light. Turn around to MSM Fire Gas panel. Press "accept" button CCR Layout MSM Fire Gas panel Visual and audible Whatever op is doing when alarm occurs Initially disorientating because MSM does not have its own sound source. Alarm could be missed if second simultaneous alarm occurs on main bank of Fire Gas panels... 

An independent overriding second low-water control. This will be set below the level control in (2). It will give an audible alarm on shutting off the fuel and air supply and require manual reset before the boiler may be brought back into operation ... 

Feedwater contamination problems may also occur where ion-exchange plants are employed for dealkalization or demineralization/ deionization (DI) processes. Where such equipment is used, however, it is common for some form of continuous monitoring to be provided, perhaps in association with an audible alarm to provide a warning of out-of-specification FW. 

Failure of water pressure can spell disaster in laboratories where some operations, such as distillations, are dependent on water. Ideally, an audible alarm would indicate the lack of water pressure. Laboratory supply houses sell water flow indicators that can be placed in series with the water line to equipment. When water is flowing, a brightly colored ball in a clear tube will move or a small propeller will turn. These can be observed from a considerable distance by watchful laboratory personnel. 

Install appropriate fire/smoke detection, audible alarms... 

Alarms should be able to be noticed at all areas of the facility, whether manned or considered technically unmanned. The basic theory for determining the number and location of audible alarm devices is that strategically placed and distributed devices will provide an efficient distributed level of sound, than one large centrally located device. 

The sensor head is lowered into a monitoring well. Upon contact with any fluid, the float ball is raised and a continuous tone emitted from an audible alarm. When the sensor head contacts the interface between LNAPL and groundwater, the change in conductive properties is detected by the electrical conductivity sensor and a beeping tone is emitted. The distances along the tape at which the two changes in the audible alarm occur are recorded as referenced from a presurveyed point on the lip of the monitoring well. The resultant distance is equivalent to the apparent thickness of the LNAPL in the well. 

An alarm system consists of sensors that detect different types of events an arming station that is used to turn the system on and off a control panel that receives information, processes it, and transmits the alarm and an annunciator that generates a visual and/or audible response to the alarm. When a sensor is tripped it sends a signal to a control panel, which triggers a visual or audible alarm and/or notifies a central monitoring station. A more complete description of each of the components of an alarm system is provided below. 

In addition to the standard laboratory protection, such as safety goggles and chemically resistant butyl rubber gloves, a personal HF gas monitor with audible alarm and a safety sensor for liquids, as described in Section 10.4, are commercially available [2], For detailed information about the toxic effects of HF, see references Fi5, Wa8 and Re4. 

This section includes guidelines for the central control station equipment, emergency alarm stations, supervisory devices, and visual and audible alarm services. These systems can be used for all types of in-house emergencies, such as fires, explosions, vapor releases, liquid spills, and injuries. 

The detection system should sound an audible alarm in the control room and be interlocked to shutdown the air handler in the event smoke is detected. When these areas are not served by an independent HVAC system, an approved 1 -hour fire damper needs to be installed where the duct penetrates the room closure. 

Production Gas Detection Instruments. A family of portable instruments has been developed for the detection and monitoring of CO levels in air (7 > The instrument family consists of a direct reading detector with LCD display of actual CO concentration and a personal CO dosimeter. Both the detector and the dosimeter measure the accumulated CO exposure of personnel in industrial environments and provide both visible and audible alarms if instantaneously unsafe levels of CO are encountered. An accompanying support console is used for integrated cumulative CO dosage readout and battery charging. 

A colorimeter (Figure 4) has been designed specifically for analyzing >2/ ) passive samplers. It is lightweight, portable and simple to use. Features incorporated into the unit include a ten-minute timer with audible alarm to ensure complete color development of the samples before analysis, a cuvette slot which... 

Identify, then describe how critical alarm works, i.e., audible alarm only, audible alarm and flashing panel alarm at this location, computer alarm with typewriter output, etc.)... 

The analysis is completed by a colorimeter that electronically compares the color intensity of the analytical stream against an air reference. The ratio signal is sent to a strip chart recorder and to a counter and logic card. Activation of visual and audible alarms will occur if predetermined agent levels exist. 

Interface features (information pages, visual/audible alarms, mimics/graphics)... 

Witness test results as they occur. This requires personnel to monitor testing as it progresses and sign test results/outcomes as each test is completed. This approach need only be nsed to document critical observations where physical test evidence such as printouts are not directly available from the computer system (e.g., audible alarm). The role of the witness can be restricted to GxP-related Test Cases. 

An audible alarm shall sound when any device anomaly is detected. 

Whenever deviation from established operating hmits is sensed, hghts indicating the cause of the problem will be activated, an audible alarm will call attention to the problem, and the system will be automatically shutdown until the problem is corrected. The audible alarm may be switched off. The indicating lamps remain lighted until the problem is corrected and the system is reset. 

A lock-out relay is included in the circuit that allows indicating alarm lamps to light, the audible alarm to sound, and prevents restarting without resetting the system when shutdown occurs in an alarm situation. It also prevents alarm devices from functioning during normal shutdown. 

M8A1), through IMS techniques, detects the presence of nerve agents (tabun (GA), sarin (GB), soman (GD), O-ethyl S-diisopropylaminoethyl methylphosphonothiolate (VX)) and supplies visible and audible alarms. This mature system has been available for a long time. More than 40,000 M8A1 systems have been fielded by the U.S. Army and many foreign countries. 

An automatic, audible alarm, shall be installed to warn of malfunction or impending shutdown if considered necessary by the Control or Regulatory Agency. 

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