Flowmeters and System Solutions
Flowmeters and System solution.
Flowmeters and System Solutions
Flowmeters and System solution.
PRODUCTS
Format：type D, type UD
Liquid
Gas
Steam
This register, compatible with all ULTRA OVAL and ULTRA UF-II flowmeter, automatically and continuously measures the process flow with correction to a specific reference temperature (for example, 15 Deg. C.).
All the calculations are carried out digitally to assist the application engineer to build a measurement and control system for oils where a high degree of accuracy is required.
With a single assembly, a pulse and analog output and total flow and instantaneous flowrate on a local LCD display.
1. By inserting a temperature sensor (resistance thermometer) connected to the register into the pipeline, accurate flow measurement is achieved while carrying out flowrate correction (volume conversion) of the process fluid to the reference temperature and temperature correction (3 α ) of the flowmeter body simultaneously
2. The operator can review the total flow and instantaneous flowrate on the local digital display.
3. Complies with the explosionproof construction for maximum safety.
4. In case of power failure and power cycling of an external power source, a built-in nonvolatile memory retains all parameters and the most recent parameters.
| Flow input | Magnetometriic sensor (amorphous sensor) signal |
|---|---|
| Temperature input | Platinum resistance thermometer element(Pt100Ω) Temperature correction range: -10 to +150°C |
| Display | 8-digit LCD ・Scrolls through available variables and parameters below, using furnished magnet or internal pushbutton). Resettable total: Before temp. correction and after temp. correction (7-digit reading each) Grand total: Before temp. correction, after temp. correction (8-digit reading each) Display Instantaneous flowrate: After temp. correction (4-digit reading) Temperature Fluid kind setting Density setting at reference temperature Volume conversion factor ・Error code upon detection of an error |
| Output | Output 1 (TEM①:+,TEM②:–)…2-wire transmission(Serves as power and signal lines.) Either pulse flow signal or analog flow signal is selectable. ● Pulse flow signal (4/20mA current pulse)…Pulse width: 1ms (default) or 50ms Select one of the following: ・Unfactored pulse, factored pulse before temp. correction, or factored pulse after temp. correction (default) ● Analog flow signal (4 to 20mA current) Select one of the following: ・Before temp. correction or after temp. correction (default) |
| Output2(TEM③:+,TEM④:–)…To use Output2 , power supply to Output1 is required. Either alarm signal or pulse flow signal is selectable. ● Alarm signal (open collector) ※1 … NPN Transister output Normal operation: Transistor OFF An error detected: Transistor ON Max. voltage impression: 30VDC Allowable current: 50mA Transister on voltage:1.5VDC and below ● Pulse flow signal (open collector pulse)*1…NPN Transister output Pulse width: 1ms (default) or 50ms Max. voltage impression: 30VDC Allowable current: 50mA Transister on voltage:1.5VDC and below Select one from the following: ・Unfactored pulse, factored pulse before temp. correction, or factored pulse after temp. correction (default) ● Pulse flow signal (voltage pulse) *2…Pulse width: 1ms (default) or 50ms “H” level = 6.9V, “L” level = 1V max. Select one from the following: ・Unfactored pulse, factored pulse before temp. correction, or factored pulse after temp. correction (default) |
|
| Items to be set up | ・Kind of fluid setting (fluid kind: crude, fuel oil, lubricant, LPG) ・Reference temperature for correction ・Density (setting range: 0.500 to 1.200g/cm3） ・High alarm setpoint in instantaneous flowrate ・Analog output full scale (trimmer adjustable) |
| Computation | ・Volume conversion based on JIS K 2249-1995 “Density test methods of crude oil and petroleum products with density/mass/volume conversion tables” ・Volume conversion based on JIS K 2240-1191 “Liquefied petroleum gas (LP gas)” ・3α correction |
| Computing accuracy | ±0.1% of reading or better (temperature sensor’s accuracy excluded). To the instant flowrate reading, an additional ±1% of reading; to the analog output, an additional ±0.1% of F.S. is added. |
| Power source | With external power source: 12 to 45VDC(TEM①:+,TEM②:–) or 12 to 24VDC when Output 2 is used as voltage pulse output. (TEM①:+,TEM④:–) Current consumption: Max.30mADC Without external power source: Operates on built-in dedicated battery pack (battery life: one year in continuous operation) …Output 1 and Output 2 are disabled. |
| Transmission cable*3 | External power and signal transmission cable: 1.25mm2shielded cable (O.D.: 8.5 to 12mm) Number of conductors: Output 1 only in use …2-conductor; Output 1 + Output 2 (open collector) in use … 4-conductor Output 2 (voltage pluse)in use… 3-conductot Temp. sensor transmission cable: AWG18×3-conductor shielded cable furnished (1.5 meters long) |
| Transmission length | External power and signal transmission cable: 1 kilometer max. (with cable 1.25mm2in conductor area） Temp. sensor transmission cable: 20 meters max. (with AWG18 cable) NOTE: Temp. sensor to be located close enough to the flowmeter so that no temperature differential results between meter body and process fluid. |
| Operating temp. range | –20 to +60°C |
| Explosionproof construction | Select one of the two below:① Non-explosionproof type ② Explosionproof type : Exd II BT3 / Exia II BT3 |
| Degree of protection for enclosure |
IP66 (dust-tight / water-tight) – IEC / EN60529, JIS C 0920 |
| Housing material | Aluminum die casting |
| Finish | Munsell 2.5PB5/8 (baked melamine) |
*1：When used as open collector output, both Output 1 and Output 2 are available at the same time. Power supply across TEM① : +, TEM② : – is 12 to 45VDC.
*2：When used as voltage pulse output, Output 1 is not available. Power supply across TEM① : +, TEM④ : – is 12 to 24VDC.
*3：For wiring of explosionproof type, do not fail to use the ancillary pressure-resistant packing. Also, in case of TIIS explosionproof type used under the ambient temperature of 40℃ or higher, use a cable resistant to the temperature of 80℃ or higher.
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Register Types D and UD
