Flow sensor for liquid media type 0 Flow range 0.... 0 l/min Nominal diameters DN 6 / 8 / 0 / / 0 / Temperature measurement -0... + ÀC In comparison to the OEM flow sensor (type 00), the type 0 is available with an increased range of power supply and output signals all with and without temperature measurement. With no moving parts the flow sensor is not sensitive to debris, has marginal pressure loss and high accuracy. Flow measuring with voltage, current or frequency output Temperature non-sensitive measuring principle Excellent media resistance (measuring element not in contact with the media) CE conformity Wide application temperature range Marginal loss of pressure Measuring element not sensitive to debris Direct temperature measurement in the medium Drinking water approval TW, W70, WRAS, ACS /9
Technical overview Flow measurement Measuring principle Vortex Piezoelectric sensor element Measuring range 0.... 0 l/min Nominal diameters DN 6 / 8 / 0 / / 0 / Accuracy at < 0% fs (water) < % fs Accuracy at > 0% fs (water) < % measuring value Response time Immediately Signal delay < 00 ms Frequency output Therefore suitable for spigot use. Response time < ms Signal delay < s Analogue output Response time < 00 ms Temperature measurement (> 8 DN) Measuring principle Resistance PT000 Measuring range -0... + ÀC PT000 @ T = 0 ÀC μ 0. Accuracy class B D EN 607 @ T 0 ÀC μ 0. μ 0.00 * T Measuring range -... + ÀC Accuracy μ 0. μ 0.00 * T 0... 0 V T (ÀC) = +0 ÀC Calculation temperature 0 V * UOUT_T - ÀC Temperature influences Self-heating at temperature sensor /mw Conduction resistance to connector 0.8 Ohm Operating conditions Medium Suitable for heating circuit water with the usual additives Drinking water Other medium on request Media < + ÀC Temperature Ambient -... +8 ÀC Storage -0... +8 ÀC (for lifetime) bar at +0 ÀC (for lifetime) 6 bar at +00 ÀC Max. pressure and (for 600 hours) bar at + ÀC medium temperature (for hours) bar at +0 ÀC (max. test pressure) 8 bar at +0 ÀC Cavitation The following equation is valid to prevent cavitation: P abs outlet / P difference >. Materials in contact with medium (FDA-conform) Sensor paddle Case with damming body Sealing material ETFE PA6T/6I (0% GF) EPDM (perox.) FPM Electrical overview Frequency output Voltage output Current output Power supply U.7... VDC.... VDC 8... VDC Output Frequency square pulse signal UOUT_Q_frequency < 0.... > U - 0. V flow (Q) Analogue signal U OUT_Q or I OUT 0... 0 V... 0 ma Output Resistant signal R OUT PT000 PT000 class B D EN 607 temperature (T) Voltage signal U OUT_T 0... 0 V Electrical connection and protection class Mx (IP 6) Mx (IP 6) Mx (IP 6) Load agianst or < ma / < 00 nf < 6 ma / < 00 nf ) < (U - 8 V) / 0 ma Current consumption load free (I ) < ma < ma Electrical reliability Short circuit, reverse voltage and external voltage protected within the admissible supply voltage. Weight DN 6 / 8 DN 0 DN DN 0 DN ~ 7 g ~ 7 g ~ 68 g ~ 9 g ~ 00 g Test / Admissions Electromagnetic compatibility CE conformity acc. to EN 66-- WRAS Drinking water approval Plastic parts with TW and W70 approval ACS Packaging (multiple packaging) Connection copper tube Outside thread Outside thread G DN 6 Blister 0x Blister 0x DN 8 / 0 Blister 0x Blister 0x Blister 0x DN Blister 0x Blister 0x Blister 0x DN 0 Blister 0x Blister 0x Blister x DN Blister x Blister x ) against only /9
Nominal diameters dependent variables Nominal diameters DN 6 Tube connection G Measuring range Quantity per pulse @ 0% fs Flow range Frequency range ), ) Q 0 f U I Pressure drop 0.... 0 l/min 0.86 ml 0.07....7 m/s 8... 7 Hz -0. 0.08.0 0.6 0 * Q 0.68 ml 0... 8 Hz 0.098 DN 8 G 0.9... l/min 0.6 ml 0.....0 m/s 0... 88 Hz -0. 0.09 N 0.6 ml... 99 Hz 0.08. 0.98 8.00 * Q.99 ml... 79 Hz 0.080 DN 0 G.8... l/min.70 ml 0.6....76 m/s... 87 Hz -0. 0.08 N.8 ml... 8 Hz 0.08..000.0 * Q.0 ml 6... 7 Hz 0.080 DN 0 G.0... 0 l/min.7 ml 0.9....89 m/s 6... 8 Hz -0. 0.08 N.88 ml 6... 78 Hz 0.08.0.00.0 * Q.07 ml 0... 7 Hz 0.8 DN G.... 0 l/min.06 ml 0.90.... m/s 0... 7 Hz -0. 0.8 N.077 ml 0... 70 Hz 0.86.0. 6.70* Q 6. ml... 7 Hz 0.7 DN 0 G.0... 8 l/min 6. ml 0.6....09 m/s... 0 Hz -0. 0.70 N 6.08 ml... 7 Hz 0.7 8...0 * Q DN. ml... 0 Hz 0.767 9.0... 0 l/min 0.8....709 m/s -0. G. ml... 0 Hz 0.770 9.7 0.9 * Q Characteristic line formula frequency output Q V = f * + Q 0 Characteristic line formula current output Q V = I * (I OUT - ma) (Influence of viscosity for media other than water - see page 8) Characteristic line formula voltage output Q V = U * U OUT Formula quantity per pulse [litres/pulse] quantity = Q V * f pulse 60 * (Q V - Q 0 ) Legend Q V Volume flow rate [l/min] Q 0 Axis intercept [l/min] f Coefficient frequency output [(l/min) / ] U Coefficient voltage output [(l/min) / V] I Coefficient current output [(l/min) / ] Frequency [Hz] U OUT Voltage [V] I OUT Current [ma] quantity litres Quantity per pulse pulse pulse Minimum life span on high flow rate and high temperature Temperature in ÀC Temperatur in C 0 0 0 0 00 9 90 8 80 7 70 6 60 0 0 60 80 00 0 0 Durchfluss Flow in % in % Std hours 0 hours Std 00 hours Std 0. year Jahr Jahr year 0 year Jahre ) incl. xdi inlet and outlet side ) Pv in Pa; Q in l/min /9
6 7 Order code selection table 0. X X X X X X X Version Flow 9 Flow and temperature (PT000) 8 Flow and temperature (0... 0 V) 6 Nominal diameters and DN 6 0.... 0 l/min. 9 0 6,G flow range DN 8 0.9... l/min. 0 8 DN 0.8... l/min. 0 DN 0.0... 0 l/min. DN.... 0 l/min. DN 0.0... 8 l/min. 0 DN 9.0... 0 l/min.,g Output / power supply Frequency output (Square pulse signal).7... VDC 8,9 Analogue signal 0... 0 V.... VDC Analogue signal... 0 ma 8... VDC 8,9 Electrical connection Connector Mx - or -pole (condensation protection) 9 Connector Mx - or -pole (condensation protection) 8,6 Sealing material EPDM Ethylene propylene rubber (peroxidically cross-linked) FPM ) Fluoro elastomer Tube connection Plastic PA6T / 6I connection copper tube (max. DN 0) N Plastic PA6T / 6I outside thread (see dimension diagram) Plastic PA6T / 6I outside thread G (see dimension diagram) G Accessories ) Order number Connection kit ) DN 8, 0 with copper tube 77 Connection kit ) DN 8, 0 with adapter Rp ⅜ Stainless steel.0/aisi 0 776 Connection kit ) DN with copper tube 777 Connection kit ) DN with adapter Rp ½ Stainless steel.0/aisi 0 778 Connection kit ) DN 0 with copper tube 779 Connection kit ) DN 0 with adapter Rp ¾ Stainless steel.0/aisi 0 780 Straight-wire box for connector Mx with cable -pole 00 cm 60 Corner-wire box for connector Mx with cable -pole 00 cm 60 Straight-wire box for connector Mx with cable -pole 00 cm (with temperature) 6 Corner-wire box for connector Mx with cable -pole 00 cm (with temperature) 6 Straight-wire box for connector Mx screwing terminal -pole 0 Clip for DN 8,0 6 Clip for DN 09 Clip for DN 0 O-Ring for DN 8, DN 0 EPDM Œ.9 x.6 Copper tube and adapter O-Ring for DN EPDM Œ 7.86 x.6 Copper tube and adapter 6 O-Ring for DN 0 EPDM Œ.89 x.6 Copper tube and adapter 7 O-Ring for DN EPDM Œ x (as a replacement, already assembled) 79 Connection copper tube for DN 8, 0 L=0 mm Connection copper tube for DN L=0 mm Connection copper tube for DN 0 L=0 mm 06 Adapter for DN 8 und DN 0 Rp ⅜ Stainless steel.0/aisi 0 6 Adapter for DN Rp ½ Stainless steel.0/aisi 0 660 Adapter for DN 0 Rp ¾ Stainless steel.0/aisi 0 66 ) No drinking water approval ) Accessories supplied loose ) Connection set includes: x Clip, x Copper tubes or Adapter and x O-Ring /9
Dimension diagram DN 6, 8, 0,, 0, d 6d d d d d d d d d d 6d DN6.7.0 G ½ 77. DN6 G 8..7 G ¾ 86. DN8.7.0 G ½ 77. d DN8 G 8..7 G ¾ 86. DN0.0. G ½ 8. 9 DN0 G 9.. G ¾ 90. 9 6.6 6. G ¾ 87 6 G.6 9. G 97 6 6.6 6. G 0 0 7 G.6 6.8 G ¼ 7 0 7 DN 0.0 68. G ¼ 0 6 DN G 6.0 7. G ½ 6 Dimension diagram DN 8, 0,, 0 a a a a a a a a a a 6a 6a DN8 9. 9.0.9 7 0. 8.9 DN0. 7..9 77 0. 8.9. 6. 9.0 8 0..0 9. 66..0 0 0. 7. /9
Admissible locking torque DN6/8/0 G ½ DN6/8/0 G ¾ G ¾ G G G ¼ DN G ¼ DN G ½ M min [Nm]... M max [Nm] Accessories DN 8, 0,, 0 adapter.0 c inside thread clip c o-ring to adapter c c 7c 6c c 8c 9c c c c c c 6c 7c 8c 9c DN8 DN0 0 Rp ⅜ D 999 lenght min. 9 Rp ⅜ D 999 lenght min. 9 Rp ½ D 999 length min.. Rp ¾ D 999 lenght min..0 9 7.6.6. 6.00 0.8.0 9 9.6 7.. 6.00 0.8 6. 67.0 0.0 8.0 7.0. 8. 8 8. 8.8 8.0 8.00. Geometry of customers connection tube DN 8, 0,, 0 o-ring b clip 6b b b bevelled edge min. 0. b 7b b 8b 9b b b b b b 6b 7b 8b 9b DN8 Œ.9x.6 μ 0. 8.9 μ 0. Œ μ 0. Œ.00 μ 0.08 Œ 8.88 μ 0.. 6.00 0.8 DN0 Œ.9x.6 μ 0. 8.9 μ 0. Œ μ0. Œ.00 μ 0.08 Œ 8.88 μ 0.. 6.00 0.8 Œ 7.86x.6 μ 0. 8.9 μ 0. Œ 6 μ 0. Œ 8.00 + 0.08-0.06 Œ.89x.6 μ 0..9 μ 0. Œ 0 μ 0. Œ.00 + 0.08-0.06 Œ.8 μ 0. 8.0 7.0. Œ.8 μ 0. 8.0 8.00. 6/9
Tube mounting instructions Consider the following to ensure the correct function of the sensor. Only diameter changes from large to small are allowed. Avoid repeated elbows in the same level at entryside minimum xdn for alternative elbows minimum 0.xDN for recommended 90À elbow with min. R.8xDN Electrical connection Connector Mx without temperature measurement A Pin Colour brown blue black OUT Frequency output Hz current output V OUT voltage output OUT Q brown white blue black gray Connector Mx with temperature measurement A T Ω T Hz T Ω T T Ω T OUT OUT Q V OUT T OUT Q V V frequency output with PT000 current output with PT000 voltage output with PT000 voltage output with temperature output 0...0 V 7/9
Influence of glycol With the following definitions we are able to correct the influence of media with higher viscosity than water (= media viscosity >.8 cst) in order to reach a measuring accuracy of % fs in the range of.8 - cst and of % in the range of - cst (υ = viscosity in cst). Definition of viscosity of glycol-water-compound inematic inematische Viskosität Ethylenglykol Wasser viscosity ethylene glycol water inematic inematische Viskosität Propylenglykol Wasser viscosity propylene glycol water 60 60 Temperature Temperatur in C ÀC 0 0 0 0 0% 0% 0% 0% 0% 0% 60% 70% Temperature Temperatur in C ÀC 0 0 0 0 0% 0% 0% 0% 0% 0% 60% 0 0 0 6 7 8 9 0 viscosity Viskosität in cst in 0 6 7 8 9 0 viscosity Viskosität in cst in Definition of respond threshold Q min Definition of characteristic line formula Q V = k f * f + Q 0 Minimal detektierbarer Durchfluss detectable flow Einfluss der Viskosität auf Q Influence on viscocity Q0 0 Minimaler Durchfluss in l/min flow l/min 0 0 DN0 DN characteristic Q0 in ennlinienformel in l/min line formula 0 8 6 DN0 DN 0 6 7 8 9 0 viscosity Viskosität in cst in 0 6 7 8 9 0 viscosity Viskosität in cst in Formula respond threshold Q min in l/min < DN 0 not possible DN 0: Q min = υ + 0.8 DN : Q min = υ +. DN 0: Q min = υ +.0 DN : Q min = υ + 6.0 Formula characteristic line for Q > Q min in l/min < DN 0 not possible Frequency output: DN0: Q = 0.08 * f 0.0υ + 0.0 : Q = 0.8 * f 0.υ + 0. : Q = 0.7 * f 0.υ + 0. DN: Q = 0.767 * f 0.80υ + 0.60 Voltage output 0...0 V DN0: Q =. * UOut 0.0υ + 0.0 : Q =.0 * UOut 0.υ + 0. : Q = 8. * UOut 0.υ + 0. DN: Q =.0 * UOut 0.80υ + 0.80 Current output... 0 ma (I in ma) DN0: Q =.000 * (I ma) - 0.0υ + 0.0 : Q =. * (I ma) - 0.υ + 0. : Q =. * (I ma) - 0.υ + 0. DN: Q = 9.7 * (I ma) - 0.80υ + 0.80 8/9
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