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Emerson Fisher N201 Series, Instruction Manual

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Emerson Fisher N201 Series Instruction Manual Download Page 3

Type N201

3

l

PiVOT 

POinT

m

F

BEam 

hOrizOnTal

(lEVEl)

BEam in raisED 

POsiTiOn

D

E

sTanDarD TriP ValVE 

insTallaTiOn

maniFOlD

sCalE FramE

h

TriP ValVE

2 PiVOT 

POinT

C

i

P

h

K

J

TriP ValVE

3 (76)

1-1/4 

(32)

inChEs 

(mm)

TriP 

ValVE

J

J

BEam WhEn CylinDEr 

is nOT FillED

sCalE 

FramE

BEam sTOP

sCalE BEam

FrOm Charging PumP

TriP ValVE 

hOsE

TyPE n201 

FillEr ValVE

PilOT VaPOr 

PrEssurE FrOm 

air COmPrEssOr 

sTOragE TanK, 

Or auXiliary 

PrOPanE CylinDEr

sCalE BEam

Filling hOsE

aPPrOX. 1/5 

lEngTh OF 

sCalE BEam

alTErnaTE TriP ValVE insTallaTiOn # 2

(FOr TyPEs 1124a anD 1280a FairBanKs mOrsE sCalE)

alTErnaTiVE TriP ValVE 

insTallaTiOn #1

a

B

          c.  Drill a 5/8-inch (16 mm) hole through the scale 

               frame at this point.  

 

          d.  Attach the beam bar “L” to the clamp “M” with 

               two screws, and attach the clamp to the rear 

               of the scale beam with two screws.  

 

          e.  Remove locknut “D” and insert the trip valve 

               through the 5/8-inch (16 mm) hole.  

               Replace locknut. 
         f.  Using locknut “D” and “E”, position trip 

             valve so that it barely contacts the beam 

             bar ”L” with the scale in a 

             level position.  

  4.  Connect supply pressure (air or gas) at point “P”. 

       Recommended supply pressure is at least 30 psig 

       (2,1 bar), since regulator 2 is set at 30 psig 

       (2,1 bar) outlet pressure.  A 30 psig (2,1 bar) 

       supply is sufficient for pump discharge pressures 

       up to 350 psig (24,1 bar).  Regulator 1 is set at 

       3 psig (0,21 bar).    

 

note  

if propane vapor pressure is used, 

atmospheric or room temperature below 

8°F (-13°C) will limit supply pressure to 

below 30 psig (2,1 bar).  To assure tight 

shutoff of the filler valve in this event, 

refer to Table 1.    

Figure 3.

  Type N201 Installation

Summary of Contents for Fisher N201 Series

Page 1: ...e scale beam contacts the trip valve see B in Figure 2 The trip valve opens to exhaust pressure from under the lower diaphragm Spring force opens the lower valve allowing pressure from regulator 2 to register on the upper diaphragm This closes the upper valve and stops flow through the orifice A red button indicates that the filler valve is closed and that the cylinder is full Removing the full cy...

Page 2: ...ade This is usually necessary when both 20 pounds 9 kg and 100 pounds 45 kg cylinders are to be filled Follow steps 3 a b c and d Place the beam button J on the scale beam close enough to the pivot point to allow the slide weight to move to zero If there is not enough room to permit this either the beam button must be ground down or the user must make a special beam button e Mount beam bar K on th...

Page 3: ...int d Attach the beam bar L to the clamp M with two screws and attach the clamp to the rear of the scale beam with two screws e Remove locknut D and insert the trip valve through the 5 8 inch 16 mm hole Replace locknut f Using locknut D and E position trip valve so that it barely contacts the beam bar L with the scale in a level position 4 Connect supply pressure air or gas at point P Recommended ...

Page 4: ...lide beam weight H to the tare weight stamped on the cylinder open the hose shutoff valve and the cylinder valve and the Type N201 will fill the cylinder to the weight added on the scale pan Note When operating with high pump pressure the filler valve may close off then reopen for a short spurt and close off again This is due to the force of the incoming liquid stream If the proper cylinder weight...

Page 5: ...Type N201 5 Figure 4 Type N201 Assemblies CH1624 11 button and bar for Attachment to scale beam 15 10 9 18 20 19 5 3 7 6 8 1 21 34 33 38 40 36 37 23 46 25 45 39 22 17 16 14 32 35 13 45 2 42 44 43 41 24 ...

Page 6: ...bling To Reassemble 1 Replace orifice key 3 in valve head key 1 2 Replace O ring key 7 and screw in bushing key 8 3 Replace disk holder assembly key 5 and spring key 21 Screw the disk holder into the diaphragm head key 9 4 Replace upper diaphragm key 10 on the valve head key 1 Align the valve housing key 2 spring key 35 lower diaphragm assembly key 32 and valve body key 17 so that the cap screws k...

Page 7: ...ip Valve Body Brass 1F945014012 25 Inner Valve Brass 20B9389X012 28 Pipe Plug Steel not shown 1A3619X0012 32 Diaphragm Assembly 1H1615000A2 33 Pipe Nipple 3 required 1C488226232 34 Tee Malleable iron 1C597547362 35 Spring Steel 1F944627212 36 Compression Elbow Brass 2 required 15A6002X172 37 Nut 2 required 1H262224122 38 Hose Assembly 1J152299012 39 Tubing Assembly Copper T20048000A2 40 Street Elb...

Page 8: ...n or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management product remains solely with the purchaser Emerson Pr...

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