RAY FS WS 453/455
FLOW SENSOR | MECHANICAL
Volume measuring device to measure thermal quantities
- Possibility of remote transmission of quantities of flow
- For easy reading the complete head part with totalizer can be turned to any position
- Easily removeable reed-switch
- The pulse transmitter is fitted with a 100 Ω, ¼ W series resistor (cable length 3 m) - can be supplied without series resistor on request
- Contact load (without series resistor) max. 24 V AC/DC (protective low voltage) 0.2 A
- Outstanding continuance of accuracy even with extreme charges because of vane bearing beeing of ring saphire and carbide metal
- Considerably extended measuring range towards small flows compared to documentation of metrological class
- As a safeguard against magnetic influences, a sealable antimagnetic screen is fitted on the meter
- Approved according MID in class 2 and 3
- Completely dry-running
-
General
Application Heating Mounting position Horizontal Medium temperature range °C 15 ... 105 Medium temperature range with counter extension °C Ambient temperature °C 5 ... 55 Ambient class E1 + M1 Nominal pressure PN bar 161 Protection class IP 54 Approval MID (DE-15-MI004-PTB010) 1 special version on request -
Technical data
Nominal diameter DN mm 50 65 80 100 150 Nominal flow rate qp m³/h 15 25 40 60 150 Maximum flow rate (short-term) qs m³/h 30 30 50 75 187.5 Minimum flow rate qi l/h 600 1000 1600 2400 6000 Starting flow rate l/h 60 60 90 90 1000 Pressure loss at qp Δp bar 0.06 0.14 0.09 0.07 0.09 Pulse value reed switch 1 l/pulse 10 / 100 10 / 100 10 / 100 10 / 100 10 / 100 Metrological class 2 qp / qi 25:1 25:1 25:1 25:1 25:1 Flow rate at 0.1 bar pressure loss m³/h 19 21 42 70 160 1 other pusle values on request
2 other qp / qi on request -
Display range
Nominal diameter DN mm 50 65 80 100 150 0.5 l ... 999,999 m³ • • • • 5.0 l ... 9,999,999 m³ • -
Dimensions
Nominal diameter DN mm 50 65 80 100 150 Overall length (DIN 19625) L mm 270 300 300 360 500 Overall length (DIN ISO 4064) L mm 300 300 350 350 500 Flange diameter D mm 165 185 200 220 285 Hole circle diameter K mm 125 145 160 180 240 Number of screwholes pcs 4 4 8 / 4 8 8 Screwhole diameter D1 mm 18 18 18 18 23 Height H mm 84 97 102 113 155 Height (without counter extension) H1 mm 155 155 190 200 400 Height (with counter extension) H1 mm 195 195 230 240 440 Diameter Ø B mm 165 185 200 220 285 Weight kg 14.2 18 24 28 79.5 -
Pressure loss graph / Typical error graph
Pressure loss graph Typical error graph
