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MODEL: SP (Portable Single Gas Detector) Operating Manual...
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Senko’s authorized aftercare center. Product Introduction SP2nd is Simple Gas Alarm Detector that is required to protect users’ safety at dangerous work environments where an explosion accident can occur. The apparatus can indicate simultaneously the concentration of gases (Oxygen, Carbon Monoxide, Hydrogen Sulfide, Hydrogen, Sulfur Dioxide, Hydrogen Chloride, Ammonia and etc.) on a digital LCD monitor, and the methods of...
Contents of Operating Manual Product Specification ------------------------------------3 Names and Functions of Exterior -----------------------4 Start of Operation ---------------------------------------5 Operation Method ---------------------------------------6 Calibration ------------------------------------------------7 Method of Alarm Set and Display ----------------------9 Applicable Battery and External Pump ---------------12 Battery & Sensor replacement-------------------------13 Operation Flow Chart ----------------------------------14 Notice for User -----------------------------------------15...
Product Specification Model SP2217 SP2227 SP2257 SP2277 SP2297 Measured Gas 0~500ppm 0~20ppm 0~20ppm 0~100ppm 0~30% 0~100ppm 0~200ppm 0~1,000ppm 0~100ppm Measurement Electrochemical Type Method Principle of Diffusion Type Measurement Monitor Custom-made Digital LCD Alarm 90dB Alert Lamp Red LED Vibration Alert Vibration Alarm Power Source Applicable...
Start of Operation Instrument Power-On Press Power key for 3 seconds, and power is turned on displaying 3, 2, and 1 in order on the monitor. (Power won’t turned on, if pressing the Power key is stopped before 3 seconds) Afterwards during the instrument is being stabilized, the countdown of 10.
Operation Method Detection Mode The instrument is converted to Gas Measure Mode as below, when power is turned on. Gas Measure Mode indicates the concentration of gas and the remained capacity of battery on LCD, and it displays the gas concentration of Oxygen by %, and such toxic gases as H2S, CO and SO2 by ppm units.
Calibration Caution: Senko Co., Ltd. performs the initial calibration before the shipment. Incorrectly calibrated value can reduce the accuracy of the product, as the calibrated value is stored in the instrument. Calibration is in general to be performed monthly or quarterly, and can be adjusted according to frequency of the use.
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Caution: Fresh Gas Calibration should be performed at the environment of fresh air without any influence of other gases, since the calibration is performed on the assumption that the concentration of Oxygen is 20.9%, that of Inflammable Gas is 0%LEL, and the concentration of Toxic Gas is 0ppm in the fresh air.
Concentration of Calibration Gas Set to Instrument Carbon Hydrogen Sulfur Oxygen Hydrogen Monoxide Sulfide Dioxide Concentration 100ppm 50ppm 500ppm 10ppm Method of Alarm Set up and Display Caution: The value of alarm of the instrument is set according to the alarm standard of each gas that is required by international standard.
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When the 1st alarm occurs, and the operator recognizes it and presses Power key, only the alarm sound stops, remaining LED alarm as the operation stale. When the 2nd alarm happens, the operator and workers should promptly escape from the work site.
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Program returns to 1st Alarm Set Mode that is the initial Alarm Set Mode, after setting up 1st Alarm value. It can approach to 2nd Alarm Set Mode or return to Gas Measure Mode. The way of setting 2nd Alarm is same as the method of setting 1st Alarm. Hold 3 secs 10 secs count down When the program returns to Gas Measure Mode after 2nd Alarm Set Mode, 10 seconds...
Applicable Battery Caution: It is absolutely prohibited to replace battery at potential explosion areas or dangerous regions. Specification of the applicable rechargeable battery and disposable battery is as below. - Disposable Alkaline Battery: 3V lithium CR2 battery If the battery of other specification, It is not permitted to use it for the instrument at dangerous regions Warning: Explosion can occur, when a battery is thrown into fire or disassembled with force.
- Replacement of components can be damage to intrinsic safety function. - The sensors published by SENKO should be used for replacement. Unsuitable function could be shown if another sensors use for replacement.. - Disassembly should be necessary only for sensors & battery replacement. After the sensor replacement, the span gas calibration should be done.
Notice for User Please use the instrument in the range of the applicable temperature, humidity and pressure that are appropriate for the specification of the product. Using the instrument beyond this range may cause malfunction or glitch of the instrument. . Gas concentration measurement value by the sensor or the instrument can vary according to the environment at site (temperature, pressure and humidity).
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