ALL-IN-ONE MINI THERMAL MASS FLOWMETER

Transcription

1 INDICATION, TOTAIZATION, -POINT AARM, DC to ma AND PUSE OUTPUT BY ONE UNIT TF-T Series A-IN-ONE MINI TERMA MASS FOWMETER OUTINE TF-T MINI TERMA MASS FOWMETER is for the measurement of mass flow rate of various gases without being influenced by changes in pressure and temperature. TF-T has CD indication of flow rate and totalization. Also, functions of scaled output pulse and DC to ma are provided. In addition, two point field adjustable alarm contacts are provided. TF-T can be operated by DCV power supply. As mentioned above, one unit provides all necessary functions for flow measurement. Full function and wide ine-up of TF-T cover various applications. FEATURES Wide range of process connection Rc /" screw to " flanges are available. They are useful with the extensive use in general process, air conditioning and gas supply line etc. Simultaneous indication of flow rate and totalization arge size, two line CD is provided! Output of current, Pulse and Alarm functions are provided. Remote indication, batch processing and safety operations are achieved by one unit. Up to six kinds of gas and scale range can be chosen Up to different gases and scale ranges can be preset using keys. Mass flow measurement Flow measurement is not influence of the change in pressure and temperature. STANDARD SPECIFICATION Fluid Scale range Rangeability Gas press. Gas temp. Temp. change effect Press. change effect Response Material Finish Construction Installation Ambient temp. Cable entry Power supply Consumption Gas (Gas containing more than % of hydrogen or helium, or mixed gas of hydrogen or helium with Cnm is unsuitable.) Min. to /min (nor) Max. to 7m /h (nor) : (std.).7 to.mpa (std.) to C Within ±.% F.S./ C Within ±.% F.S./.MPa sec. for 9% Tube : SUS [Excluding TF-T] SUS or SUS [TF-T] (SUS only as for the flange connection) Sensor : Combination of SUS, Glass, CTFE and PT Seal : FKM or CR ousing : ACA ousing : Munsell N8. Stainless body not painted Waterproof (Equiv. to IP) orizontal or Vertical ( ) to C G/ (terminal: M screw) DCV (DCV to 7V) Approx..W Installation & flow directions: orizontal and eft to Right (standard) set up at factory. Excellent in durability Excellent durable sensor supported by old know-how is used. ow pressure drop ow pressure drop type is about kpa at max. flow igh speed response 9% response within a second and also corresponding to batch processing and total flow rate control Stabilization of Flow rate display and current output By setting up a filter coefficient, flow display and current output can be stabilized. oop check function Operation of equipment can be checked in the condition without flowing gas. OPERATION PRINCIPE Temperature detection sensor Ra and velocity detection sensor Rw are installed in the gas flow path of TF-T MINI TERMA MASS FOWMETER. The internal electronic circuits keep the temperature gap between Rw (Tw) and Ra (Ta=Gas temp.) constant by supplying electric current Ι. The transferred heat from Ra to passed gas (RwΙ ) is proportional to the mass flow rate of the gas to be measured which can be calculated from supplied current Ι. The detection of mass is not influenced by the change in gas pressure and temperature because it is compensated by the internal software, and finally the measurement is made, completely independent of any operating conditions. The flow rate is calculated from the supplied current Ι and outputted in the form of electric signal. OW F Rw Tw Ra Ta

2 A MINI-TERMA TF-T TOKYO KEISO CO.,TD. /h /min m A MINI-TERMA TF-T TOKYO KEISO CO.,TD. /h /min m MINI-TERMA TF-T MASS FOW METER /h /min A m TOKYO KEISO CO.,TD. A MINI-TERMA TF-T TOKYO KEISO CO.,TD. /h /min m A MINI-TERMA TF-T TOKYO KEISO CO.,TD. /h /min m TF-T A-IN-ONE MINI TERMA MASS FOWMETER FRONT PANE AND FUNCTION CAUTION FOR INSTAATION Straight run for upstream and downstream (d: diameter) 7 igh alarm () 8 ow alarm (A) Use the key for gas setting. MINI-TERMA TF-T MASS FOW METER /h /min A m TOKYO KEISO CO.,TD. Indicator Upper line: Flow rate Bottom line: Totalizing Unit UP DOWN SIFT Model code Upstream Downstream TF-T TF-T TF-T Unnecessary TF-T TF-T d (*, ) d (*, ) Model code Upstream TF-T TF-T d (*) TF-T Downstream Unnecessary (*) * The tolerance of the pipe with the different connection from flowmeter is ± size. Install the necessary straight run with the same connection as flowmeter. TERMINA -G/ PUSE OUT A (E) (C) (E) ( ) (+) ( ) (+) (C) (E) ( ) A (+) (C) d d * Use the pipe less than Sch. 8 for Rc screw connection. * Installation of the pipe is the same connection of flowmeter. (E) (C) PUSE OUT RESET (E) (C) (E) (C) A A ANAOG OUT POWER (+) ( ) V M screw Totalizing pulse output 7 ow alarm igh alarm Flow rate alarm output Open collector (Rating: DCV, ma max.) RESET ANAOG OUT POWER ( ) (+) V 8 9 DC to ma External switch output Power supply DCV Before installing the flowmeter onto process piping, flush and clean the whole piping. Install valves downstream if any. Use the shielded cable for wiring and do not locate it near to power supply line etc. to avoid the electric noise. There is the arrow mark showing the flow direction. Make the installation so that the measured gas can flow as per the arrow marking. INSTAATION POSTURE orizontal installation MASS FOW METER MASS FOW METER Indication Flow rate : digits Totalization: 7 digits CD eight: mm CD eight: mm Accuracy Flow rate : ±%F.S. ± dig. Totalization : ±.%F.S. Totalizing count : to 8c/h FOW FOW ow cut off Std. %F.S. (Depending on rangeability) Flow rate, Totalization, Current output, Pulse output Flow direction: eft to Right Flow direction: Right to eft Current output Output : DC to ma (oad resistance ohms or less) Max. output value: (Approx.).mA Accuracy : ±%F.S. Vertical installation Output Data backup Pulse output Output : Open collector Rating : DCV, ma Max. Pulse width : (Approx.) ms fixed Pulse rate : Synchronized with pulse count Flow rate alarm output Output : Open collector Action : ON when operating (with Red ED for operating confirmation) Rating : DCV, ma Max. Setting : Push key at front panel No. of points : points ( + alarm) Setting accuracy : ±.%F.S. Setting range : to % of F.S. ysteresis : ±.%F.S. fixed Setting of parameter and totalizing value is memorized by EEPROM. (Retaining: For years) MASS FOW METER FOW Flow direction: Top to Bottom MASS FOW METER FOW Flow direction: Bottom to Top * When installing vertically, indicator can be placed on the right-hand side. Specify to that effect when ordering. At this time, cable entry is on the upper side, so waterproof treatment shall be performed. TOKYO KEISO CO., TD. TG-F-E

3 A A A MINI-TERMA TOKYO KEISO CO.,TD. MINI-TERMA TOKYO KEISO CO.,TD. MINI-TERMA TOKYO KEISO CO.,TD. A A MINI-TERMA TOKYO KEISO CO.,TD. MINI-TERMA TOKYO KEISO CO.,TD. TF-T A-IN-ONE MINI TERMA MASS FOWMETER DIMENSION TF-T MASS FOW METER /h /min m TF-T MASS FOW METER /h /min m -Rc W -SW W FOW FOW TF-T MASS FOW METER /h /min m TF-T MASS FOW METER /h /min m W -Rc D FOW FOW TF-T MASS FOW METER /h /min DIMENSION OF INDICATOR m -G/ MINI-TERMA TF-T MASS FOW METER D 7 A /h /min m TOKYO KEISO CO.,TD. FOW Model code TF-T TF-T TF-T TF-T TF-T TF-T TF-T TF-T Fig. Process connection Rc /, /8, / Female screw OD / SW OD /8 SW OD / SW JIS K A Flange JIS K A Flange JIS K A Flange Rc /, /8, / Female screw OD / SW OD /8 SW OD / SW JIS K A Flange JIS K A Flange JIS K A Flange Rc /, /8, / Female screw OD / SW OD /8 SW OD / SW JIS K A Flange JIS K A Flange JIS K A Flange Rc /8, /, / Female screw OD /8 SW OD / SW OD / SW JIS K A Flange JIS K A Flange JIS K A Flange Rc Female screw Rc -/ Female screw Rc -/ Female screw Rc Female screw JIS K A Flange JIS K A Flange JIS K A Flange JIS K A Flange JIS K A Flange JIS K 8A Flange Rc / Female screw JIS K A Flange Rc / Female screw JIS K A Flange Rc Female screw JIS K A Flange W or D Mass (Approx.) kg TG-F-E TOKYO KEISO CO., TD.

4 TF-T A-IN-ONE MINI TERMA MASS FOWMETER TF- Type Scale range Output Scale range [/min (nor)] Full scale range (A B) C [m /h (nor)] Ex.) m /h (nor) m /h (nor) 7m /h (nor)7 Main material SUS excluding TF-T Connection rating Connection size Flow direction Model code T ABC P S F 8 R U D Standard type ow pressure drop type Max. /min (nor) Max. /min (nor) Max. /min (nor) Max. /min (nor) Max. 7m /h (nor) DC to ma, Pulse, Alarm output to /min (nor) to /min (nor) to /min (nor) to 8 /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to 8 /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to /min (nor) to 8 /min (nor) to /min (nor) Max. 7m /h (nor) (Refer to Table.) SUS SUS Rc female screw SW JISK flange /" mm (/8") mm (/") mm (/") mm (") mm (-/") mm (-/") mm (") mm (-/") 8mm (") eft to Right (Std.) Right to eft Bottom to Top Top to bottom TF-T TF-T TF-T TF-T TF-T TF-T TF-T TF-T Description TF-T only as for the flange connection, choice is possible Available for all models Refer to P. for process connection of each model TOKYO KEISO CO., TD. TG-F-E

5 PRESSURE OSS (The following graphic chart is data in case of air.) TF-T A-IN-ONE MINI TERMA MASS FOWMETER TF-T C, atm TF-T ow press. loss type C, atm /min (nor) /min (nor) /min (nor) /min (nor) Flow rate [/min (nor)] Flow rate [/min (nor)] TF-T Middle to arge connection type C, atm A A A A A 8A Flow rate [m /h (nor)] 7 8 * Specification is subject to change without notice. ead Office : Shiba Toho Building, 7 Shibakoen, Minato-ku, Tokyo 88 Tel : +8- (KEY) ; Fax : overseas.sales@tokyokeiso.co.jp ; UR : TG-F-E TOKYO KEISO CO., TD.