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Positioners

Series NE

Installation, Maintenance and
Operating Instructions

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Содержание NE Series

Страница 1: ...7 NE 72 en 2 2020 Positioners Series NE Installation Maintenance and Operating Instructions ...

Страница 2: ...ment air supply 8 2 6 Electric connections 8 3 INPUT SIGNAL AND DIRECTIONS OF OPERATION 8 3 1 Changeover piece 8 3 2 Cam plate 8 4 PRELIMINARY ACTIONS FOR THE ADJUSTMENT 9 4 1 Position of the changeover piece 9 4 2 Pilot valve 9 4 3 Setting the internal feed back spring 9 4 4 Position of the cam plate 9 5 BASIC ADJUSTMENT 10 6 a0 ADJUSTMENT 10 7 SPLIT RANGE ADJUSTMENT 11 8 MAINTENANCE 11 8 1 Suppl...

Страница 3: ... actuator is exactly in the position required by the input signal The spring 40 causes a negative feed back between the first amplification stage nozzle 166 and restriction 24 and the second pilot valve assembly 44 By changing the lower fastening point for the spring 40 on the balance beam 164 the dynamics of the positioner can be adapted to suit the actuator size The zero adjustment 61 is mechani...

Страница 4: ...ition separate recycling and disposal instructions are available from the manufac turer A positioner can also be returned to the manufacturer for recycling and disposal against a fee 1 6 Safety precautions Table 1 Pilot valve alternatives Positioner type Actuator stroke volume dm3 litres Air consumption nm3 h scfm Max delivery nm3 h scfm NE724 1 0 8 0 0 9 0 5 12 7 NE726 8 0 30 0 1 2 0 7 18 10 4 NE...

Страница 5: ...ation Obsolete since 2013 The bottom of the limit switch acts also as the cover for the positioner Remove the limit switch before the adjustment of the positioner 1 Loosen the cover screws Note the position of the shaft relative to the positioner when removing the limit switch 2 When the adjustment of the positioner is done operate the actuator until the valve is in the closed or open posi tion 3 ...

Страница 6: ...x 1 1 8 10 0 9 55 1 8 111 3 8 x x x x 1 5 3 1 5 3 2 5 5 5 12 16 3 6 225 6 7 415 1 2 x x x x 4 5 11 8 18 3 5 6 4 5 11 20 25 13 795 27 1642 3 4 x x x x x x x x 8 5 21 17 38 7 5 19 15 33 32 322 53 3231 106 6480 1 x x x x x 33 74 30 64 60 130 QP Stroke vol dm3 in3 NPT 6 4 10 8 12 10 1 4 3 8 1 2 ø4LC ø4 ø6 ø6 HC 1C 0 62 38 3 8 x x 1 5 2 1 5 2 2C 1 08 66 3 8 x x 2 3 5 2 3 5 3C 2 18 133 3 8 x x 3 5 2 3 4...

Страница 7: ... to open valve Spring to close valve Cam segments B 0 100 A 0 50 A 50 100 4 Increasing input signal to close valve Spring to open valve Cam segments B 0 100 A 0 50 A 50 100 WARNING Valve closes exceptionally counterclockwise Unsuitable for Q R T5 F and L series valve NOTE Reverse piping for ST actuators Spring and piston in the opposite position from shown SINGLE ACTING SPRING TO OPEN 5 Increasing...

Страница 8: ...n R and the external tubes mounted in accordance with Fig 6 3 2 Cam plate The figures marked on the cam plate 29 are the signal ranges expressed as percentages for example 0 100 corre sponds to 4 20 mA or 50 100 to 12 20 mA See Fig 9 The arrows on the cam plate show the direction it must turn when the input signal is rising in the cam segment in ques tion The non rising segments between the rising...

Страница 9: ...f the valve goes into position too slowly the spring can be moved to the e direction respec tively In sticker inside the cover 2 has also been shown the posi tion for the lower end of the spring 40 in accordance with the actuator size 4 4 Position of the cam plate Choose the side A or B and the rising segment of the cam plate from Fig 6 in accordance with the function desired Move the actuator pis...

Страница 10: ...and ball valves This adjustment takes into account the dead angle α0 of the ball valve The entire signal range is then used for effective valve opening 90 α0 see Figure 14 The same adjustment method can be applied to butterfly valves in papermills for pulp flow control to avoid the dewa tering of the pulp near the closed position of the disc Table 4 shows the shift on the circumference of the cam ...

Страница 11: ...valve sticks wash the body and spool with sol vent See the exploded view for the correct installation position of the pilot valve The size code for the pilot valve on the body for example DIA 4 0 must be visible on the right side Check the condition of the O rings 43 and 47 and of the gasket 45 The end of the leaf spring on the beam must be on top of the pilot valve spool Figure 13 Make sure that ...

Страница 12: ...ir gap with e g tape 2 Place the magnet into the body carefully making cer tain that the moving force coil does not jam in the air gap Tighten the screw 169 firmly 8 4 3 Mounting the force coil nozzle assembly Check the O ring 39 in the case and the location of the wire in the body groove Turn the screws 38 until tight Mount the terminal card and the springs Note the correct position of the spring...

Страница 13: ... supply air tube too small or supply air filter dirty valve sticks 5 Zero point unstable restriction assembly dirty inaccurate dead angle α0 adjustment 10 OPTIONS 10 1 NE700 R dust proof construction IP65 For extremely dusty environments The protective cover 3 behind the standard posioner is replaced with an exhaust port with a 3 4 NPT filter Please note do not remove the exhaust port 10 2 NE700 A...

Страница 14: ... 99 64 101 3 69 98 4 3 4 3 NE700 J_ NE700 S1 NE700 R NE700 _GN 86 88 87 25 24 23 22 15 76 77 78 79 70 72 73 71 74 54 NE700 K NE700A 55 10 14 9 17 13 8 20 18 19 21 38 27 28 7 50 62 1 100 43 44 45 47 46 48 49 109 110 2 29 30 31 32 57 58 5 6 59 168 37 169 164 41 35 36 33 34 42 16 61 39 40 105 ...

Страница 15: ... Cam plate 30 1 Locking wheel 31 1 Screw 32 1 Pointer 33 1 Lever arm assembly 34 1 Retaining ring 1 35 1 Terminal card assembly 3 36 2 Screw 37 1 Force coil nozzle assembly 3 38 2 Screw 39 1 O ring 1 40 1 Spring 1 41 1 Spring 1 Item Qty Description Spare part category 42 1 Spring 43 1 O ring 1 44 1 Pilot valve assembly 2 45 1 Gasket 1 46 1 Changeover piece 47 2 O ring 1 48 1 Protective plate 49 2 ...

Страница 16: ...16 7 NE 72 en 13 2 Mounting parts for B1C6 502 and B1J8 322 actuators S1 Item Qty Description 1 1 Mounting bracket 2 1 Draught piece 3 4 Washer 4 4 Screw 28 4 Screw 29 2 Screw 36 1 Coupling jacket ...

Страница 17: ...Description 1 1 Mounting bracket 2 2 Coupling half 3 1 Adapter 4 4 Screw 5 4 Hex nut 6 1 Screw 7 4 Screw 8 4 Washer 9 4 Screw 10 4 Washer Drive female spline Item Qty Description 1 1 Mounting bracket 2 1 Ear 4 4 Screw 28 4 Screw 29 1 Screw 30 4 Screw 35 1 Coupling 36 1 Coupling jacket ...

Страница 18: ... actuators S2 Item Qty Description 1 1 Mounting bracket 2 1 Draught piece 3 2 Washer 4 2 Screw 5 1 Bracket 6 1 Washer 7 1 Screw 8 2 Washer 10 1 Rod 11 2 Bushing 12 2 Screw 13 2 Stud B1C6 only 14 2 Hexagon nut B1C6 only 26 2 Locking nut 27 2 Washer 28 2 Screw ...

Страница 19: ...g parts for B1C25 502 and B1J25 322 actuators S2 Item Qty Description 1 1 Mounting bracket 2 1 Draught piece 3 2 4 Washer 4 2 4 Screw 8 2 Washer 9 2 Screw 10 1 Rod 11 2 Bushing 12 2 Screw 26 2 Locking nut 27 2 Washer 28 2 Screw ...

Страница 20: ...ered carefully Standard IP 54 enclosure PG11 conduit entry S1 always to be defiened Temperature range 25 to 85 C 13 to 185 F R Water and dustproof enclosure IP65 NEMA 4 and 4X W Better vibration resistance Special flexure pivot and diamond coated pilot H High temperature construction Viton diaphragms and seals Temperaturerange 10 to 120 C 14 to 248 F Not available with options A and accessory K S1...

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