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EB 9520 EN

Safety instructions and measures

Safety instructions and measures

Intended use

The Media 05 Differential Pressure and Flow Meter is used to measure and indicate the dif-
ferential pressure or derived measuring variables for gases and liquids. Typical application 
include liquid level measurement on pressure vessels, differential pressure measurement be-
tween flow and return flow pipes, pressure drop measurement on valves and filters as well as 
flow rate measurement according to the differential pressure method.
The device is designed to operate under exactly defined conditions (e.g. operating pressure, 
process medium, temperature). Therefore, operators must ensure that the device is only used 
in operating conditions that meet the specifications used for sizing the device at the ordering 
stage.
In case operators intend to use the device in other applications or conditions than specified, 
contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice for its intended purpose or for damage caused by external forces or any other external 
factors.

 

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Refer to the technical data for limits and fields of application as well as possible uses.

The Media 05 Differential Pressure and Flow Meter without limit contacts may be used to 
measure flammable gases and liquids in which hazardous area conditions of Zone 0 are to 
be expected, provided the operator observes the applicable regulations for measuring 
flammable gases and liquids in Zone 0. This means that measuring instrument suited for the 
connection to Zone 0 can be installed provided:

1.  The pipes connecting the instruments have been sized and installed according to the 

German Technical Regulations for Flammable Liquids TRbF 50 or

2.  Flame arresters or endurance burning flame arresters have been installed in the two 

measuring lines.

Whether you have to install flame arresters or endurance burning flame arresters depends 
on the conditions on site. However, endurance burning flame arresters are preferably to be 
installed. You are required to contact the appropriate regulatory authority to agree on the 
necessary measures.
The operator is responsible for meeting the above specified requirements specified (1 and 2). 
SAMSON does not assume any responsibility if the operator fails to do so.

Summary of Contents for Media 05

Page 1: ...of original instructions EB 9520 EN Media 05 with indicating unit and dp cell with valve block and pressure gauge for operating pressure right Edition November 2010 Media 05 Differential Pressure and...

Page 2: ...fter sales Service Department aftersalesservice samson de The mounting and operating instructions for the devices are included in the scope of delivery The latest documentation is available on our web...

Page 3: ...ressure lines 14 3 5 Orifice flange orifice plate assembly 14 4 Accessories 16 4 1 Valve block 16 4 2 Shut off and equalizing valves 16 4 3 Compensation chambers 16 4 4 Accessories for connection 16 5...

Page 4: ...e caused by external forces or any other external factors Refer to the technical data for limits and fields of application as well as possible uses The Media 05 Differential Pressure and Flow Meter wi...

Page 5: ...ide the limits defined during sizing and by the technical data Furthermore the following activities do not comply with the intended use Use of non original spare parts Performing maintenance activitie...

Page 6: ...proper operation and compliance with the safety regulations Operators are obliged to provide these mounting and operating instructions to the operating personnel and to instruct them in proper operat...

Page 7: ...requirements stipulated by VBG 62 or similar regulations until they are handed over to the manufacturer Otherwise SAMSON does not accept any responsibility Risk of damage to the differential pressure...

Page 8: ...ce plate creates a force at the measuring diaphragm 1 5 which is opposed by the range springs 1 4 The movement of the measuring diaphragm and lever 1 8 which is proportional to the differential pressu...

Page 9: ...mber 1 3 Low pressure chamber 1 4 Range springs 1 5 Measuring diaphragm 1 6 Diaphragm plates 1 7 Diaphragm stem 1 8 Lever 1 9 Flexible disk Housing of indicating unit 2 1 Gear segment 2 2 Pointer mech...

Page 10: ...ale division for any linear measured variable for measured variables based on equations curve or table Characteristic Characteristic linear to differential pressure scale linear to tank content Deviat...

Page 11: ...rox 2 6 kg without valve block 4 6 kg with valve block Materials Version Standard version Housing Brass CW617N or CrNi steel Measuring diaphragm and seals ECO 2 Springs diaphragm plates functional par...

Page 12: ...everse installation can only be used when there is no other possibility particularly for steam measurements Refer to VDE VDI 3512 Sheet 1 for details 3 3 Media 05 indicating unit Make sure that the hi...

Page 13: ...embly Compensation chamber Standard Standard Installation standard Separation chamber Reverse Reverse Measurement of liquids Measurement of steam Measurement of gases h H z h H h K H Y H Measuring ran...

Page 14: ...w on the orifice plate Unobstructed pipe sections are required upstream and downstream of the orifice plate assembly For the orifice tubes de livered by SAMSON these section are ensured by the weld on...

Page 15: ...tallation Location of the differential pressure lines on the orifice plate assembly For steam For gas For liquids Type 90 Orifice Flange Inlet 20 to 50 x d Outlet 5 x d 65 d Fig 3 Orifice flange orifi...

Page 16: ...t off valves as well as the bypass valve equalizing valve can also be installed as illustrated in Fig 5 4 3 Compensation chambers Compensation chambers that establish a constant liquid column are requ...

Page 17: ...valve Shut off valves Holes for lead seal wires Shut off valves Test connection Liquid level measurement Fig 4 SAMSON valve block Flow rate measurement 1 Shut off valves 2 Equalizing valve To the ind...

Page 18: ...late 1 Slowly open the high pressure line 2 Close the equalizing valve or bypass of the valve block 3 Open the low pressure line NOTICE 4 Wait a while Open both vent screws of the dp cell one after th...

Page 19: ...the shut off valve in the low pres sure line to allow the pressures to equal ize in the dp cell The pointer must indicate zero If this is not the case undo the dial screws and turn the dial it can be...

Page 20: ...pressure to the high pressure mea suring chamber until the pointer indi cates 100 while the low pressure con nection is open Read off the adjusted pressure value at the pressure gauge It corresponds...

Page 21: ...Class 0 1 pressure gauge 1 Screws 2 Cover plate 3 Fastening screw 4 Measuring unit frame 5 Dial screws Recess for screwdriver 5 4 3 2 1 Supply air reducing sta tion with oil filter and test pressure...

Page 22: ...he listed maximum values in the table apply concerning the connection of proximity switches to certified intrinsically safe circuits in the type of protection Ex ia IIC T6 PTB 00 ATEX 2049 X Type 1 Ty...

Page 23: ...ifica tions 1 Connect the device to a switching ampli fier as described in section 7 1 2 Apply a pressure to the high pressure connection of the dp cell which corre sponds to the desired switching poi...

Page 24: ...contact unit 2 onto the unit frame plate 3 from the right so that the metal tags reach into the proximity switches without touching the contacts 5 Fasten the contact unit 2 to the measur ing unit fra...

Page 25: ...s 1 PCB 2 Contact unit 3 Measuring unit frame 4 1 Connecting cable A1 4 2 Connecting cable A2 5 Slotted head screws 6 Phillips screw 8 Cable gland Positioning notch 3 6 1 8 4 1 5 A1 2 A2 5 4 2 51 52 4...

Page 26: ...EB 9520 EN Dimensions 8 Dimensions 31 60 212 5 110 _ Pressure gauge connection G LH with coupling sleeve G for pressure gauge NG 100 and 12x2 O ring as well as for G for pressure gauge NG 63 with G se...

Page 27: ...EB 9520 EN 27 Dimensions 200 117 25 64 26 43 36 58 26 103 129 5 80 SW14 G Valve block when mounted upside down Pipe mounting...

Page 28: ...4 117 158 5 25 17 5 52 30 35 8 6 30 Drill pattern for wall panel mounting Center of the indicator unit Two 8 5 mm holes for fastening at the back of the dp cell M8 screws Two 8 5 mm holes for fastenin...

Page 29: ...EB 9520 EN 29...

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Page 32: ...2019 10 23 English SAMSON AKTIENGESELLSCHAFT Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 9520 EN...

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