measuring mode: 1 range or 2 ranges (for measuring the same sample gas components with the same measuring system) measuring range: co 2 0 to 10 ....100 100 to 90 .... 0 h 2 0 to 3 ....100 100 to 95 .... 0 ar 0 to 10 ....100 100 to 90 .... 0 ch 4 0 to 20 ....100 100 to 80 .... 0 he 0 to 5 ....100 100 to 90 .... 0 output signal: dc 4 to 20 ma (load resistance less than 400 ? ) dc 0 to 10mv (output resistance 100 ? ) 0 to 100 a (load resistance 100 ? ) is further available for special specification. [ ] } data sheet zaf thermal conductivity gas analyzer thermomat in modern industries, it is indispensable to analyze components and measure concentrations of mixture gases and combustion gases for strict quality control and to file data for establishing production schedules which will allow proper management of industrial processes. of the various analytical methods and measuring prin- ciples available for analyzing process gases, this gas analyzer utilizes the fact that electric resistance of a heated platinum wire changes depending on kind and concentration of gas. features 1. continuous measurement possible. 2. quick response. 3. integral unit incorporating detector, current regulator and indicator. 4. simple and robust mechanism assuring high maintainabil- ity. 5. minimum influence due to external and operating condi- tions. 6. stable accuracy. specifications measuring principle: measurement of thermal conductivity measuring component: two-component gases (from viewpoint of thermal conductivity) such as co 2 , h 2 , ar, ch 4 , he, sf 6 simultaneously available kind of gas relative thermal conductivity (at 0 c)expressed taking that of air(5.572 10 -5 cal/cm.sec. deg.)as 1 sulfurdioxide so 2 carbondioxide co 2 argon ar carbon monoxide co water vapor(100 c)h 2 o air nitrogen n 2 oxygen o 2 methane ch 4 hydrogen h 2 repeatability: 1% of f.s. drift: within zero point 2.5% of full scale/week within span 2% of full scale/week date EDS3-61H jun. 27, 2002
zaf 2 standard measuring measuring principle code symbols response speed: within 30 sec for 90% response (for 20% co 2 ) within 60 sec for 90% response (for 0 to 10% h 2 ) (varies with kind of gas and range) sample gas flow rate: 0.4 0.05 /min, constant standard requirements for sample gas: temperature 0 to 50 c dust 0.3 m or less pressure 10kpa or less (flow rate 0.4l / min) materials of gas-contacting parts: lead, stainless steel jis sus316, platinum, platinum iridium, epoxy resin, silver, fluororubber power supply: ac 100v 10%, 50/60 hz 110v, 200v, or 220v usable for special specification power consumption: approx. 10va mounting: indoor panel plug-in warmup time: at least 30 min. ambient temperature: -5 to 45 c ambient humidity: less than 90% rh weight: approx. 5kg external dimensions (h x w x d): 240x197x 212 mm finish color: munsell 7.5bg 3.2/0.8 ? = 90 measur- ing gas compari- son gas compo- nent co 2 h 2 ar ch 4 he 1 : max. 5 1 : max. 10 1 : max. 5 1 : max. 10 measuring range range ratio 0-10, 20, 50, 100% 100-90%, 100-80% n 2 , o 2 , air, he ar impossible n 2 , co 2 , ar air, o 2 impossible 0-3, 5, 10, 20, 50, 80, 100% 100-90%, 100-80% output characteristic 0-10, 20% : linear others : non-linear 100-90% : linear others : non-linear n 2 , o 2 , air, he co 2 impossible 0-10, 20, 50, 80, 100% 100-90%, 100-80% 0-10, 20%, 100-90% : linear others : non-linear 1 : max. 5 n 2 , co 2 , ar, he air, o 2 impossible 0-20, 40, 50, 60, 80, 100% 100-80% n 2 , co 2 , ar, o 2 , air 0-5, 10, 20, 30, 40, 50, 80, 100% 100-90%, 100-80% non-linear 100-90% : linear others : non-linear (note 1) linear output is 2.5% fs or less. (note 2) on 2-range type, the zero point is used in common. (note 3) when sample gas consists of more than 3 components, contact our office with a table of gas components submitted for confirma- tion of whether or not applicable analyzers are available. - 2 f a zp description reference gas n 2 n 2 others than n 2 gas sample gas co 2 co 2 h 2 ar ch 4 he sf 6 others co 2 h 2 ar ch 4 he sf 6 others measuring range 0 to 20% others than 0 to20% as specified by customer (see the table below) as specified by customer (see the table below) power supply ac 100v 50/60hz ac 110v 50/60hz ac 200v 50/60hz ac 220v 50/60hz 3a 4a 4b 4c 4d 4e 4f 4z 6a 6b 6c 6d 6e 6f 6z 1 2 3 4 measuring 1 range 2 ranges (available only for measuring the same sample gas) 1 2 dc constant current measuring chamber reference chamber fixed resistor fixed resistor dc amplifier dc 4 to 20ma dc 0 to 10mv or 0 to 100 a v-i converter v/i enclosed gas inlet sample gas (note 1) reference gas components are as listed in the table below. (note 2) sample gas, herby, means a gas components to be measured, and reference gas stands for each component other than the sample gas (remaining gas component).
3 gas sampling system diagram (example) connection diagram scope of delivery analyzer main unit panel mounting brackets fuse 2 pieces items to be prepared separately sampling equipment receiving instrument 1 2 power ac or ac 100v 50/60hz 200, 110, 220v 0 to 10ma or 0 to 100 a 4 to 20ma g 3 4 5 6 7 8 9 10 note 1 note 2 note 2 pump peltier gas cooler flow checker 0.4l/min membrane filter atmosphere drain pot , standard gas for zero , standard gas for span zaf (note 1) dust must be purged adequately (for protection of the pump, flowmeter, etc.). (note 2) unnecessary when sample gas is dry.
zaf asterisked * items: non-standard outline diagram (unit:mm) zero span inlet outlet thermomat range power panel 2 188 19 24.2 8 gas inlet gas outlet terminal cover indicator terminal board specification card tapping rc1/4 230 26 268 184 panel cutout dimensions rear view +2 0 46 232 +2 0 140 t 197 169 192 182 240 130 33.5 t 10 information in this catalog is subject to change without notice. printed in japan head office 6-17, sanbancho, chiyoda-ku, tokyo 102-0075, japan http://www.fesys.co.jp/eng sales div. international sales dept. no.1, fuji-machi, hino-city, tokyo, 191-8502 japan phone: 81-42-585-6201, 6202 fax: 81-42-585-6187 http: //www.fic-net.jp/eng caution on safety *before using this product, be sure to read its instruction manual in advance.
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