High-precision Thermal Mass Flow Meters & Mass Flow Controllers for Gases

Technical Specifications red-y smart series

MEASURING RANGES
Air/Full scale freely selectable	Body size ¼” from 0 … 25 mln/min to 0 … 60 ln/min (from 0 … 27 SCCM to 0 … 64 SLPM) Body size ½” from 0 … 60 ln/min to 0 … 450 ln/min (from 0 … 65 SLPM to 0 … 480 SLPM)
INSTRUMENT VERSIONS
“Standard” The economic solution	Accuracy: ± 1.0% of full scale* Turndown ratio: 1 : 50
“Hi-Performance”With highest accuracy and turndown ratio(available for GSM < 200 ln/min (200 SLPM) /GSC < 150 ln/min (150 SLPM) (air))	Accuracy: ± 0.3% of full scale + ± 0.5% of reading* Turndown ratio: 1 : 100*An additional error of ±0.25% may apply for analogue signals
PERFORMANCE DATA
Media (real gas calibration)	Air, O2, N2, He, Ar, CO2, H2, CH4, C3H8 (other gases and gas mixtures on request) *O2 & N2 are calibrated with air
Response time	Meter: 50 ms; Controller: 150 ms
Repeatability	± 0.2% of full scale
Longterm stability	< 1% of measured value / year
Power supply	24 Vdc (18 – 30 Vdc), 15 Vdc on request
Current consumption	Meter: max. 100 mA; Controller: max. 250 mA
Operation pressure	0.2 – 11 bar (3 – 160 psia) / GSC with valve type 4.5 and 8: max. 8 bara (120 psia)
Temperature (environment/gas)	0 – 50°C (32 – 122°F)
Body Materials	Anodized aluminum, optional stainless steel electropolished
Seals	FKM, NBR, optional EPDM
Pressure sensitivity	< 0.2% / bar of reading (typical N2)
Temperature sensitivity	0.025% FS measuring range type per 1°C (<0.012% per 1°F)
Warm-up time	< 1 sec. for full accuracy
INTEGRATION & INSTALLATION
Output signals analog	0-20 mA, 4-20 mA, 0-5 V, 1-5 V, 0-10 V, 2-10 V
Output signals digital	RS-485; Modbus RTU (Slave); LabView-VIs available / option: Profibus DP-V0, DP-V1
Process connection	G¼” (BSPP* female) up to 60 ln/min (64 SLPM) G½” (BSPP* female) up to 450 ln/min (480 SLPM)*British Standard Pipe Parallel
Inlet section	None required
Electrical connection	Sub D plug, 9 pole
Mounting orientation	Any orientation (horizontal only above 5 bar)
SAFETY
Test pressure	16 bara (240 psia)
Leak rate	< 1 x 10-6 mbar l/s He
Environmental protection	IP50
EMC	EN 61326-1