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| EDS3-132C |
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 FUJI
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ZSVS 2 • Indicated values: Digital 4-digit indication (by LCD with back light) • Instantaneous values of respective gas components • Instantaneous values after O2 correction (when provided with O2 analyzer) • Average value after O2 correction (when provided with O2 analyzer) • CP calculation value display (when pro- vided with CO2 analyzer) * The channel numbers of indicated value and output value correspond to each other one by one. • Power supply: Rated voltage; 100 to 115 V AC or 200 to 240 V AC Working voltage; 85 to 132 V AC or 180 to 264 V AC * Depending on customer’s code selection. Rated frequency; 50/60 Hz Max. rated power; 150 VA Inlet; Class 1 type conforming with EN60320 • Operating conditions: Ambient temperature; 0 to 40˚C Ambient humidity; 90% RH or less * Condensation unallowable • Storage conditions: Ambient temperature; -20 to 60˚C Ambient humidity; 95% RH or less * Condensation unallowable. • External dimensions (H × W × D mm): 211 × 365 × 527 • Weight: Approx. 12 kg • Finish color: Cover; White pearl mica Base; Medium gray metallic • Enclosure design: Casing made of steel plates for indoor installation. • Gas-contacting part materials: Gas inlet/outlet; Polypropylene Sample cell; SUS304/neoprene rubber Transparent window: CaF2 Internal pipes: Toalon tube/Teflon tube • Gas inlet/outlet: φ6/φ3 hose end • Purge gas flow rate: 1 L/min (to be purged as required) Standard Functions • Zero gas flow time: Z180 to 999 sec (settable in 1-sec step) • Auto indication off: Indication automatically turns off when no key is operated for the determined period of time in the standby status. Light off time; OFF/ON (1 to 30 min) (settable in 1-min step) • Output holding:At calibration during measurement, out- put holds the value just before the cali- bration according to hold setting. In the standby status, output will not be held. Indication will not be held either. Hold setting; OFF/ON • Key lock: None of the set values can be changed when key lock is turned ON. This is helpful for reducing operation er- rors and wrong inputs. C= × Cs 21–On 21–Os C; Sample gas concentration after O2 correction Cs; Measured concentration of sample gas Os; Measured O2 concentration On; Standard O2 concentration for conver- sion (settable within 0 to 19%) The result of conversion is indicated and output in a signal simultaneously. * An Os value of 20% or more is taken as 20% for calculation. • Averaging after O2 correction; The result of O2 correction is subjected to moving average for the determined period of time. And the result of averag- ing is indicated and output in a signal si- multaneously. Average value will be taken at a cycle of 30 sec. (Indication and output are updated every 30 sec.) • Resetting of output average value: Indication and output of average value are cleared in response to resetting. * Effective only when average value se- lection is specified in CODE SYMBOLS. • CP calculation: The carbon potential of carburizing fur- nace and conversion furnace are calcu- lated using furnace temperature (fixed input value) and CO concentration value (fixed or measured value) while referring to CO2 measured value. Calculation equation; where, CPS ; Saturated carbon concentration (partial pressure) 0.0028t–1.30 (800˚C 850˚C) 0.0030t–1.47 (850˚C 950˚C) 0.0034t–1.85 (950˚C 1000˚C) t; Furnace temperature PCO ; CO concentration value (partial pressure) PCO2 ;CO2 concentration value (partial pressure) K1 ; Constant K1=10 (9.06–15966/T) T; Rankine temperature (tx9/5+32+46˚) • Instrument/calibration error indication: When the instrument or calibration is abnormal, an error number is indicated to help analysis of the error. • O2 correction: Conversion of measured NOx, SO2 and CO gas concentrations into values at stan- dard O2 concentration Calculating equation; CP= CPS ×(PCO)2 K1 ×PCO2 |
