data sheet zaj this product is an analyzer which measures oxygen con- centration in a sample gas by converting it into pressure, utilizing the magnetic property of oxygen. when compared with the oxygen analyzers of other measuring systems, this oxygen analyzer features a faster response, and smaller influence by coexisting gas and com- bustible gas, etc. further, this analyzer is easy to use because of abundant functions such as discretionary range setting and interac- tive operation. it is usable in diverse field including control of various heat treating furnaces, combustion furnaces and other various fields. 1. because of a pressure detection type, response is quick. 90% response can be reached within 2sec. 2. measuring range can be set in any range of 0 to 2 ... 100%o 2 3. combustible gases do not affect measurements. 4. measurements are scarcely affected by coexisting gases (h 2 , co 2 etc). 5. suppression range is possible (for example, 21 to 100%, 100 to 95%o 2 etc). 6. interactive operation is possible by using liquid crystal display. 7. parts which are brought in contact with gases are made of anticorrosive materials such as stainless steel and te- flon. measuring range: 1) when reference gas is n 2 , 0 to 2 ... 0 to100%o 2 (freely settable in 1%o 2 steps) 2) when reference gas is air, 21 to 23 ... 21 to 100%o 2 or 21 to 19 ... 0%o 2 (freely settable in 1%o 2 steps) 3) when reference gas is 100%o 2 , 100 to 98 ... 100 to 0%o 2 (freely settable in 1%o 2 steps) numbers of range: 2 ranges measuring system: paramagnetic pressure type output signal: 4 to 20ma dc (load 550 ? max.) 0 to 1v dc repeatability: within 0.5% of full scale (in 10% or higher ranges) within 1% of full scale (in ranges below 10%) zero drift: within 1% of full scale/week (in 10% or higher ranges) within 1.5% of full scale/week (in ranges below 10%) span drift: within 2% of full scale/week flow rate of sample gas: 0.5l/min. or 1l/min response time (90% response: *indication start-up time): 2sec or less (sample gas flow rate 1l/ min, range width 5%o 2 or more) 3sec or less (sample gas flow rate 1l/ min, range width less than 5%o 2 ) 3sec or less (sample gas flow rate 0.5l/ min) *the time (= 1sec.) required for gas re- placement in the internal piping is not included. linearity: within 2% of full scale compositional variations: 0.04%o 2 or 1% of full scale, or which- ever is larger. sample gas temperature: 0 to 40?c pressure loss: approx. 1.3kpa {about 130mmh 2 o}(at sample gas flow rate 0.5l/min) approx. 2.8kpa {about 280mmh 2 o}(at sample gas flow rate 1l/min) reference gas: n 2 , o 2 gas or air reference gas pressure: 100kpa (range width: 10%o 2 or more) specified pressure: 50 to 150kpa (range width: less than 10%o 2 ) *specified pressure is marked at the ref- erence gas inlet. *reference gas is supplied at the above pressure to allow for flow rates of 5 to 20ml/min. purging gas (dry air or n 2 ) flow rate: 1l/min (flowed for purging corrosive ambient gas) gas inlet/outlet dimensions: rc1/4 (pt1/4 female screw) or npt1/4 features specifications paramagnetic oxygen analyzer date EDS3-115C apr. 1, 2011
zaj 2 mounting method: mounting on 19-inch rack, flush mount- ing on panel or desk top mounting materials of gas-contacting parts: teflon and 304 stainless steel temperature characteristic: 1.5% of full scale/10 c warmup time: approx. 2 hours interference due to coexisting gas: (deviation in o 2 % of zero point caused by flowing interfering gas component at 100%) interfering gas deviation in o 2 % deviation in o 2 % interfering gas no no 2 he h 2 ne hf co n-c 7 h 16 xe c 3 h 8 c 3 h 6 c 2 h 6 +43 +28 + 0.30 + 0.24 + 0.13 + 0.10 + 0.01 2.10 0.95 0.86 0.55 0.46 c 3 h 4 h 2 s hc r co 2 nh 3 c 2 h 2 ar so 2 n 2 o ch 4 h 2 o 0.44 0.39 0.30 0.27 0.26 0.24 0.22 0.22 0.20 0.20 0.02 display: liquid crystal display, concentration indication (4 digits), range indication (4 digits) message indication (24 characters, 2 lines) output hold: output hold is possible during calibration. moving average time: 0 to 99.9sec contact output: 1a contact calibration signal, instrument failure, contact capacity 250v ac, 2a (re- sistance load) power supply: 85 to 264v ac, 50/60hz power consumption: approx. 45va ambient temperature: ? to +45 c ambient humidity: less than 90% rh allowable (max.) external vibration: 1.0m/s 2 {0.1g}(0 to 30hz) 0.5m/s 2 {0.05g}(30 to 100hz) external dimension (hxwxd): rack mount type 220x483x463mm flush mount type 220x443x463mm desk-top type 233x443x463mm mass: approx. 16kg finish color: munsell 5y 8/1 installation condition: the instrument must be protected from direct sunlight and heat radiation from objects at high temperature. for installing the instrument outdoors, it must be protected from the elements with a suitable casing or cover. the instrument must be installed in a clean atmosphere free from corrosive or combustible gas. the instrument must be free from se- vere external vibrations. when fast response time is required, it should be used in a place free from vibration. 90 support note: instrument mass of more than 70% should be supported at the bottom of the case. * for panel mounting or 19-inch rack mount- ing, a support should be provided for sup- porting the rear side of the case. alarm output: upper limit alarm: contact output; 1c contact contact capacity; 250 ac, 2a (resistive load) lower limit alarm: contact output; 1c contact contact capacity; 250 ac, 2a (resistive load) remote range changeover: range can be changed with external signal signal input for range changeover; 5v dc range identification signal output: contact output; 1a contact contact capacity; 250 ac, 2a (resistive load) output hold: each output can be held by external in- put signal input signal for external hold; 5v dc (held by 5v input) transmission function: rs-232c interface half-duplex bit serial, start-stop synchronouse, 9600bps automatic calibration: zero/span calibration is performed auto- matically at a preset cycle. calibration gas is supplied while driving the external electromagnetic valve. calibration gas density setting range: zero gas: 0.00 to 99.99%o 2 (0.01%o 2 step) span gas: 0.00 to 99.99%o 2 (0.01%o 2 step) calibration start: built-in timer or remote start signal output hold during calibration: possible calibration gas flow time: up to max. 60min and 59sec calibration cycle: 1 to 168 hours (1 hour step) contact output: calibration: 1a contact contact capacity: 250v ac, 2a (resistance load) calibration error: 1a contact contact capacity: 250v ac, 2a (resistance load) remote start: remote start input signal: 5v dc (start at more than 100msec of pulse input) optional specification
3 main unit: analyzer unit x 1, 2 of fuses, one of in- struction manual, one of accessory kit (one of restrictor, six of packings, two of filters, two of spanners) items to be prepared separately: standard gas for calibration code symbol zbm sy04-01 reference gas measuring range 0 to 2 ... 100%o 2 n 2 : code symbol zbm ny04-01 measuring range 21 to 23 ... 100%o 2 21 to 19 ... 0%o 2 air : code symbol zbm ry04-01 or instrumentation air measuring range 100 to 98 ... 0%o 2 o 2 : code symbol zbm sy04-01 buffer tank zbh410 3 note (1) when using this analyzer, be sure to provide a buffer tank in the exhaust path immediately after the analyzer. this is required for preventing output fluctuation due to disturbances such as large noise and strong wind. (2) in case of air-suppletion range, span gas concentration should be ordered by specifying 80 to 100% of the full scale. at this time, clearly describe "manufacture ac- cording to weighing method and accuracy within o 2 con- centration corresponding to 1% of full scale." otherwise, concentration error will increase. [example] in case of 21 to 19%o 2 range: span gas concentration 19.0 to 19.4%o 2 /n 2 , manufacture accord- ing to weighing method, accuracy within 0.02%o 2 . (3) in case of oxygen-suppletion range, use o 2 gas of purity 99.99% or more for zero gas in ranges of 10% or less o 2 full scale, and that of purity 99.9% or more in other ranges. (4) use a copper pipe (6/4 copper pipe) for the reference line. it should be as short as possible from the gas cyl- inder. if it is long, it takes time until it is stabilized after power on. do not use a plastic pipe, as it causes errors in reading due to permeantion of oxygen. sampling system diagram (example) code symbols scope of delivery constitution gas sampler gas inlet tube safety drain trap pump electromagnetic valve flow checker membrane filter buffer tank note) span gas cylinder zbm mist filter drain atmosphere analyzer-unit zaj pressure alarm unit electromagnetic valve peltier gas cooler regulation valve exhaust zero gas cylinder zbm reference gas cylinder zbm polyethylene tude copper pipe 6/ 4 a zj 4 10 2 13 45678 1112 9 description measuring range 2 range selectable minimum range 2%o 2 maximum range 100%o 2 range setting before delivery 5/25 o 2 range (refer to "measuring range" in specifi- cation) construction desk-top type 19 inches rack mount type panel flush mount type response time standard type (2sec/90% of full scale) (5% or more o 2 of full scale) power supply and pipe connection dimension 85 to 264v ac 50hz/rc1/4 85 to 264v ac 60hz/rc1/4 85 to 264v ac 50hz/npt1/4 85 to 264v ac 60hz/npt1/4 use for general service display japanese english option without automatic calibration alarm output, remote range, range identification transmission function (rs-232c) a + b a + c b + c a + b + c 4 - y 2 5 6 7 8 0 n e y a b c d e f g a b c
zaj external connection diagram zaj co2 483 465 443 220 146 35 400 28 435 r3.5 7 212 < front view > power switch (rack mounting plate) operation panel ?supporter more than 70% of the instrument mass at the bottom of the case. external connection terminal terminal block 1 sample gas inlet sample gas outlet reference gas inlet purge gas inlet gas inlet, outlet rc 1/4 or npt 1/4 fg power supply terminal < rear view > terminal block 2 rs232c connector < side view > supporter panel cutout (for flush mounting) 213 +2 0 436 +2 0 outline diagram (unit:mm) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 output signal 4 to 20ma dc oxygen concen- tration value output signal 0 to 1v dc oxygen concen- tration value upper limit alarm contact output (option) lower limit alarm contact output (option) remote range input (option) external hold input (option) range identification contact output (option) under calibration contact output instrument abnormal contact output automatic calibration error contact output remote start input contact output for zero calibration gas contact output for span calibration gas power supply 85 to 264v ac 50/60hz ( ( power supply terminal terminal block 2 terminal block 1 printed in japan caution on safety *before using this product, be sure to read its instruction manual in advance. international sales div sales group gate city ohsaki, east tower, 11-2, osaki 1-chome, shinagawa-ku, tokyo 141-0032, japan http://www.fujielectric.com phone: 81-3-5435-7280, 7281 fax: 81-3-5435-7425 http://www .fjielectric.com/products/instruments/ information in this catalog is subject to change without notice.
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