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23.118/1 DFC 27B . . W/B: Heavy-duty pressure monitor/limiter

How energy efficiency is improved Demand-led controlling and monitoring, without auxiliary energy. Areas of application For controlling and monitoring pressures in liquids, gases and vapours. Especially suitable for equipment that is subject to vibrations. Features · Pressure range: 0.5 to 40 bar · Contact rating: 1 mA, 6 V to 10 A, 400 V · Up to 110 °C media temperature · Gold-plated silver contacts · Fixed switching difference, no hysteresis setting necessary · Sealable · Complies with DGRL 97/23/EC, Cat. IV Technical description · Light-alloy housing with transparent cover · Splash-proof · Ambient temperature: -40 to +70 °C · IP 44 or IP 54 as alternative · Brass sensor

Type Setting range bar Switching difference bar Max. sensor values bar °C Weight kg

P

Y03262

P

Pressure monitor DFC 27B43W F001 0.5...6 0,3 Safety pressure limiter with locking facility on rising pressure 1) DFC 27B43B F001 0,5...6 0,3 DFC 27B52B F001 2,0...16 0,6 DFC 27B58B F001 2,0...25 1,5 DFC 27B67B F001 3,0...40 2,0

Contact rating as silver contacts 2) for higher loading max. 10(2) A, 400 V~ 25 W, 250 V= min. 100 mA, 24 V as gold contacts 3) for lower loading max. 200 mA, 50 V min. 1 mA, 6 V Permissible vacuum loading -0,7 bar DFC 27B52 -1,0 bar

21 21 21 63 63

110 110 110 110 110

0,9

Y03384

0,9 0,9 0,9 0,9

-40...70 °C IP 44 (EN 60529) IP 54 5) I (IEC 60730) ID: 0000006021 ID: 0000006020 Cat. IV A01499 A01503 M259344 MV 2288

Xsd

Permissible ambient temp. Degree of protection Protection class Test marking 6) Monitor DWFS (SDB) 4) Limiter SDB PED Wiring diagram: Dimension drawing Fitting instructions monitor limiter

3 2

1

B01574

Accessories

0044529 000 0214120 000 0114467 000* 0233310 000 0259189 000* 0259409 000* 0259299 000 0292018 001* 0292019 001 0292019 002 0381141 001*

*) 1) 2) 3) 4) 5) 6)

Plug spanner for the setting screws Throttling screw of stainless steel for damping pressure surges 1 m of capillary tubing for damping pressure surges; steel Aluminium cover with window (with accessory 0259299 000 = IP 54) Bracket for off-wall mounting Bracket (for 3-point fixing when used with 0259189) Cable screw fitting Pg 13,5 Damping screw of stainless steel for arresting pressure surges in low-viscosity media Setpoint setting according to customer's specification (± 3% of the setting range) Setting screw sealed (with accessory 0292019 001 only) Sealing ring of copper for G ½"

Dimension drawing or wiring diagram are available under the same number Reset is possible only after the pressure has fallen by the switching difference If under inductive load, take RC circuit into account If the contacts are ever loaded higher than 200 mA, 50 V, the gold plating will be damaged. The contacts are then classed only as silver contacts, since they lose the properties of gold contacts As a safety pressure limiter when an external electric locking facility is connected IP 54 with 0259299 000 Certificates can be downloaded from www.tuv.com

Sauter Components

7123118003 06

Xs

P

23.118/2 DFC 27B . . W/B

Operation The monitor opens circuit 1-2 at the setpoint Xs and closes it again after the pressure has fallen by the fixed switching difference XSd. With an external electrical locking facility, it can be used as a safety limiter. The safety limiter opens circuit 1-2 at the setpoint Xs and locks the change-over contacts mechanically. It can be switched on again by pressing the reset button after the pressure has fallen by the switching difference XSd. The vibration-proof snap-action switch has a pre-loaded spring which prevents the change-over mechanism from operating until the switching point has been attained. This ensures that the contacts remain fully closed right up to the switching point, even if operation is very slow. Additional details on materials Materials which come into contact with the medium: housing of material no. 1.4104; spring tube of material no. 1.4541. Additional technical data

Complies with:Directive 2006/95/EC EMC directive 2004/108/EC PED 97/23/EEC, Cat. IV EN 60730-1/ EN 60730-2-6 EN 61000-6-1/ EN 61000-6-2 EN 61000-6-3/ EN 61000-6-4 Pressure 100/1 DIN 3398 T4

Technical notes

RC circuit under inductive load For the optimum RC circuitry, refer to the specifications supplied by the manufacturers of the relays, contactors etc. If these are not available, the following rule of thumb can be applied in order to reduce the inductive load:· Capacitance of the RC circuit (F) is equal to or greater than the operating current (A). · Resistance of the RC circuit () is approx. equal to the resistance of the coil ().

B03 772

Wiring diagram

Dimension drawing

133 32 61

G2, G4=67

P

>40

1 2 3

A01499a

V1, V2

22

117

259409

140

P

1 2 3

G1, G2

22,5 15,5

259189

10

6

A01503b

5,4 80...84 21 60 a 115 97 89 69 84 69 b 100 77 49 ------s 27 27 27 36 27 36 Pg 13,5 259299

Type DFC 17B1 . DFC 17B3 . DFC 17B5 . DFC 17B7 . DFC 17B9 . DFC 27 . . .

s G1/2A

Øb

M259344f

Sauter Components

a

7123118003 06

a

DFC 27B . . W/B

23.118/3

Accessories

114467 192700

s27

259189

G1/2

95 80 5,4 32

1000

M5 15,5

NW 1.0 (192700) NW 1.5 (114467)

50 38

M00318

R1/2

M00316a

259409

32 5,4

292018

M4 Ø1,58

Ø0,38

4,5

7,5 11 25

s5

45

M04566

22

M00314

381141

14,8 8

M06962

4,2

Sauter Components

Printed in Switzerland Right of amendment reserved N.B.: A comma between cardinal numbers denotes a decimal point © Fr. Sauter AG, CH-4016 Basle 7123118003 06

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