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Operating instructions
Bourdon tube pressure gauges
Capsule pressure gauges
Diaphragm pressure gauges
Spring diaphragm pressure gauge for differential
pressure
D0, D1, D2, D3, D4, D5, D6, D7, D8, D9
Nominal size: 40, 50, 63, 80, 100, 160, 250
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Read instructions before using product!
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Observe all safety information!
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Keep instructions for future use!
02.2017 0
854.001.0336
Mess-, Regel- und
Überwachungsgeräte
für Haustechnik,
Industrie und Umweltschutz
Lindenstraße 20
74363 Güglingen
Telefon +49 7135 102-0
Service +49 7135-102-211
Telefax +49 7135-102-147
info@afriso.de
www.afriso.com
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Table of Contents
Related Manuals for Afriso EURO-INDEX D0
Summary of Contents for Afriso EURO-INDEX D0
- Page 1 Capsule pressure gauges Diaphragm pressure gauges Spring diaphragm pressure gauge for differential pressure D0, D1, D2, D3, D4, D5, D6, D7, D8, D9 Nominal size: 40, 50, 63, 80, 100, 160, 250 Read instructions before using product! Observe all safety information! Keep instructions for future use! 02.2017 0...
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Page 2: Table Of Contents
Table of contents This instruction manual.................... 4 Precautions ....................4 Safety........................5 Intended use....................5 Predictable incorrect application ..............6 Safe handling ....................7 Staff qualification ..................7 Modifications to the product ................. 7 Usage of spare parts and accessories ............8 Liability information .................. - Page 3 Operation ....................... 32 Dismounting the pressure gauge ............... 32 Additional equipment ..................... 33 Shut-off unit ....................33 Pressure gauge holder ................33 Siphons ...................... 34 Chemical seals ................... 34 Overpressure safety devices ..............34 Pressure gauge with maximum pointer ............35 Electrical contacts ..................
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Page 4: This Instruction Manual
This instruction manual This instruction manual This instruction manual is part of the product. Read this manual before using the product. Keep this manual during the entire service life of the product and always have it readily available for reference. ... -
Page 5: Safety
Safety Safety Intended use Bourdon tube pressure gauges Bourdon tube pressure gauges may only be used to display the pressure of media which are not highly viscous and which do not crystallize. Bourdon tube pressure gauges NS50 with inductive contact (RF50ExIK1.2/ RF50IK1.2 - D302/D312) are additionally suitable for the generation of signals within the given adjustment range. -
Page 6: Predictable Incorrect Application
Safety Media The fluids used must be compatible with the materials of the product under the specific measuring conditions (for example, temperature, atmosphere, immunity of the material against the measured fluid, etc.) and which do not cause chemical reactions. • Intended operation as per EN 837-1/-3 •... -
Page 7: Safe Handling
Safety Safe handling WARNING Injury due to escaping fluids or bursting parts as a result of leaks or bursting of pressurised parts Use Bourdon tube safety pressure gauges with blow-out (for example, blow-out back). As per EN 837, liquid-filled pressure gauges must have a blow-out device (version S1, S2 or S3). -
Page 8: Usage Of Spare Parts And Accessories
Safety Usage of spare parts and accessories Usage of unsuitable spare parts and accessories may cause dam- age to the product. Use only genuine spare parts and accessories of the manufac- turer. Liability information The manufacturer shall not be liable in any form whatsoever for direct or consequential damage resulting from failure to observe the technical instructions, guidelines and recommendations. -
Page 9: Product Description
Product description Product description Measuring principle Bourdon tube pressure gauge Bourdon tube pressure gauges contain measuring elements (Bour- don tubes) which are deformed if pressure is applied. This motion is transmitted to a movement. Bourdon tubes are tubes with a oval cross-section, bent into a circle. The pressure to be measured acts on the inside of the tube so that the oval cross-section approximates a circular shape. -
Page 10: Measuring Principle Capsule Type Pressure Gauge
Selection criteria the system is high-resistance (approx. 7000 Ohm), the current input is then < 1 mA. The difference in the current input is used to control a switching am- plifier. This amplifier converts the input signal into a binary output signal. -
Page 11: Range
Selection criteria Range Select the range in such a way that the maximum pressure load does not exceed 75 % of the full scale value in the case of static load and 65 % of the full scale value in the case of dynamic load. -
Page 12: Ambient Conditions
Selection criteria Due to the limited selection of materials for the elastic measur- ing elements, it may be necessary to use suitable diaphragm pressure gauges or to install chemical seals made of resistant materials (see chapter 9.4, page 34). Ambient conditions Mechanical shocks Pressure gauges must not be subjected to mechanical shocks. -
Page 13: Overload
Selection criteria Corrosive atmosphere In the case of a corrosive atmosphere, use suitable housings and assemblies made of resistant materials, for example, spe- cial surface treatments against external influences. Overload Overloads cause tension in the elastic measuring element which de- creases its services life and deteriorates the measuring accuracy. -
Page 14: Connection
Selection criteria Connection Select the size and the type of the connection thread according to EN 837-1/-3, chapter 7.3 and observe the selection table as per EN 837-1, chapter 8 (combinations: pressure, thread, nomi- nal size). Other connections for special industries and applications must be agreed upon. -
Page 15: Technical Specifications
Technical specifications Technical specifications Table 1: Technical specifications Bourdon tube pressure gauges Parameter Value General specifications Measuring ranges -1/0 bar to -1/15 bar 0/0.6 bar to 0/1600 bar Temperature perfor- Rising temperature approx. +0.4 %/K mance Falling temperature approx. -0.5 %/K (indication error when the temperature of the measuring system deviates from the normal temperature of 20 °C, with... - Page 16 Technical specifications Table 2: Technical specifications Bourdon tube pressure gauge with clamp type chemical seal Parameter Value General specifications Degree of protection > 25 bar = IP 65 (as per EN 60529) ≤ 25 bar = IP 54 (as per EN 60529) Ranges 0.6-40 bar Permissible operating...
- Page 17 Technical specifications Table 3: Technical specifications Bourdon tube pressure gauge NS 50 with inductive contact Parameter Value General specifications Nominal operating volt- Nom. 8.2 V DC Current input Active area free > 3 mA Active area covered < 1 mA Type of output NAMUR Degree of protection...
- Page 18 Technical specifications Parameter Value Fluid Max. +100 °C Attention: Fluid must not freeze. Table 4: Technical specifications capsule pressure gauges Parameter Value General specifications Measuring ranges -25/0 mbar to -1000/0 mbar 0/25 mbar to 0/1000 mbar Temperature perfor- Rising temperature approx. +0.06 %/K mance Falling temperature approx.
- Page 19 Technical specifications Table 5: Technical specifications diaphragm pressure gauges Parameter Value General specifications Measuring ranges 0/10 mbar to 0/25 mbar Temperature perfor- Rising temperature approx. +0.08 %/K mance Falling temperature approx. -0.08 %/K (indication error when the temperature of the measuring system deviates from the normal temperature of 20 °C, with reference to the full scale value) Operating frequency in...
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Page 20: Approvals, Tests And Conformities
Technical specifications Table 6: Technical specifications spring diaphragm pressure gauges (differential pressure) Parameter Value General specifications Measuring ranges 0/250 mbar to 0/6 bar Temperature perfor- Rising temperature approx. +0.05 %/K mance Falling temperature approx. -0.05 %/K (indication error when the temperature of the measuring system deviates from the normal temperature of 20 °C, with reference to the full scale value) -
Page 21: Transport And Storage
Transport and storage Transport and storage CAUTION Damage to the pressure measuring instrument, reduced accu- racy or leaks at the measuring system due to improper trans- portation Do not throw or drop the product. CAUTION Damage to the product due to improper storage. ... - Page 22 Mounting and commissioning Preparing mounting The pressure gauge must be mounted in such a way that it is not subjected to shocks and vibrations. The pressure gauge must be easy to read. Avoid parallax errors when reading the pressure gauge. In order to obtain a position of the pressure gauge that allows for easy reading, threaded connections should be made by means of a female/female connection or a union nut.
- Page 23 Mounting and commissioning Vent the gauge by cutting off the nipple at the pressure relief opening (blow-out). The internal pressure compensation helps to ensure an accu- rate indication. Bourdon tube pressure gauges with clamp chemical seal Do not remove the protective cap of the chemical seal until im- mediately before installation.
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Page 24: Connection Thread
Mounting and commissioning Connection thread The correct pressure gauge connection was selected. The pressure connections must be tight. You may only use a suitable seal whose material is compatible with the fluid to seal the connection. Cylindrical threads: Seal the sealing surface with suitable flat gaskets as per EN 837-1, chapter 7.3.6, profile gaskets (see chapter 14, page 41) or lens-shaped rings for the corresponding high-pressure connections. -
Page 25: Measurement Arrangements
Mounting and commissioning Measurement arrangements Table 7: Proven measurement arrangements and suggestions for the components as per VDE/VDI 3512-3 Liquid Gaseous State of fluid Liquid Partially Com- Gaseous Partially Com- State of filling gassing pletely condensed pletely in measuring evapo- (humid) con- line... -
Page 26: Mounting Position
Mounting and commissioning Mounting position The orientation is indicated by the orientation mark on the dial. Symbol Meaning Dial Fig. 6: Orientation mark as per EN 837 If no orientation mark is indicated on the dial, the pressure gauge must be mounted vertically (as per EN 837). Pressure gauge and chemical seal with 3A approval The fluid must be able to flow off. -
Page 27: Connection Types
Mounting and commissioning Connection types Possible connection types for pressure connections. Table 8: Cylindrical thread, sealing with seal at sealing surface Direct mounting Nipple connection Bevel seat connection Table 9: Conical threads, sealing in the thread Direct mounting Bourdon tube, capsule, diaphragm, spring diaphragm pressure gauges... -
Page 28: Mounting Types
Mounting and commissioning Mounting types Table 10: Mounting type and position of the connection pieces as per EN 837 Direct connec- Wall mounting Wall mounting tion 3-hole mounting Clamp fixing Bottom connec- tion piece Not recommended Rear connec- tion piece, centre Not recommended Rear... -
Page 29: Pressure Tap Piece
Mounting and commissioning Pressure tap piece Mount the pressure tap piece at a point with unobstructed flow or steady measuring conditions. The hole for the pressure tap piece must be sufficiently large; it is recommended to install a shut-off unit. Measuring line The measuring line connects the pressure tap piece and the pres- sure gauge. -
Page 30: Commissioning The Product
Mounting and commissioning Commissioning the product Carefully commission the pressure measurement arrangement in or- der to avoid pressure surges or sudden temperature changes. Slowly open the shut-off units. When subjecting pipe systems to pressure tests, never apply pres- sure to pressure gauges in excess of the specified permissible val- ues for static loads for the pressure gauge. - Page 31 Mounting and commissioning Bourdon tube pressure gauges NS50 with inductive contact: Adjusting the switching point Adjustment knob (knurled nut) Adjustment range: Ap- prox. 3-15 % of the full scale value Mark for switching point Lock Loosen Pointer above switching point: Contact low- resistance, current input >...
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Page 32: Operation
Operation Operation Slightly tap on the housing of the pressure gauge. Read the pressure. The error limits as per EN 837-1/-3 apply. When cleaning or flushing the pressure line, you must not ex- ceed the maximum permissible operating temperature of the pressure gauge. -
Page 33: Additional Equipment
Additional equipment Additional equipment Shut-off unit A shut-off unit between the pressure tap point and the pressure gauge allows you to check the zero point of the pressure gauge or to dismount the pressure gauge without interrupting the process. De- pending on the application, you can use valves or cocks. -
Page 34: Siphons
Additional equipment Siphons If the temperature of the measured fluid at the measuring point is higher than the permissible operating temperature of the pressure gauge, the shut-off units and the pressure gauges must be protected from the hot fluid by means of sufficiently long measuring lines or si- phons. -
Page 35: Pressure Gauge With Maximum Pointer
Additional equipment In the case of a pressure surge, the overpressure safety device clos- es immediately, in the case of a slow pressure increase, it closes gradually. Therefore, the closing pressure to be set depends on the values along the progression. Pressure gauge with maximum pointer Since Bourdon tubes have a relatively small resetting force, you must account for their influence when installing a maximum pointer. - Page 36 Additional equipment Magnetic spring contact The design of magnetic snap action contacts is similar to that of slid- ing contacts. This type of contact features additional magnets to ac- celerate the contact action. To close the circuit, the contact pin of the moving contact arm is at- tracted by the magnet so that the contact snaps closed.
- Page 37 Additional equipment Electronic contact The electronic contact with PNP switching output is particularly suit- able for direct connection to a PLC. Due to the low voltages and cur- rents, additional switching amplifiers are not required. Reed contact Pressure gauges with Reed contact have a bi-stable Reed sensor as their switching element.
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Page 38: Type Code - Design Numbers
Type code – design numbers 10 Type code – design numbers Digit 1 after the "D" for Design defines the housing version, digit 2 specifies the mounting type and digit 3 represents the measuring system (for example, D101). Table 11: Housing versions Digit 1 Housing Window... -
Page 39: Maintenance
Maintenance Table 13: Measuring systems Digit 3 Measuring system (wetted part) Bourdon Spring diaphragm pressure gauge tube/capsule/diaphragm pres- sure gauge Copper alloy Anodised aluminium, nickel-plated brass, stainless steel 301, Viton Stainless steel Stainless steel 316Ti/316L, stainless steel 301, Viton Monel 11 Maintenance Repairs may only be performed by the manufacturer, see chapter 13, page 41. -
Page 40: Decommissioning, Disposal
Decommissioning, disposal 12 Decommissioning, disposal Liquid filled pressure gauges: Remove the plug at the edge of the housing and completely empty the pressure gauge (drip- free). Usually, Bourdon tube pressure gauges and capsule pressure gaug- es are glycerine-filled (99.5 %), the spring diaphragm pressure gauges are filled with a glycerine/water mixture (66 %). -
Page 41: Returning The Device
Returning the device 13 Returning the device In order to protect the environment and our staff, we will transport, check, repair or dispose of returned products only if this is possible without risk to health and environment. Always enclose a declaration of decontamination when return- ing a device (confirmation that the device is free from hazards) ... -
Page 42: Customer Satisfaction
Customer satisfaction 17 Customer satisfaction Customer satisfaction is our prime objective. Please get in touch with us if you have any questions, suggestions or problems concerning your product. 18 Addresses The addresses of our worldwide representations and offices can be found on the Internet at www.afriso.com. -
Page 43: Appendix
Appendix 19 Appendix 19.1 EU Declaration of Conformity Bourdon tube, capsule, diaphragm, spring diaphragm pressure gauges... -
Page 44: Information On The Pressure Equipment Directive
Appendix 19.2 Information on the Pressure Equipment Directive Bourdon tube, capsule, diaphragm, spring diaphragm pressure gauges...
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