Related Manuals for Endress+Hauser promag 31
Summary of Contents for Endress+Hauser promag 31
- Page 1 31 BA 019D/06/e/10.96 Nr. 50074675 Electromagnetic valid from software version V2.01.XX (measuring amplifier) Flow Measuring System Operating Manual Endress Hauser Nothing beats know-how...
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Page 2: Safety Instructions
Safety Instructions Correct Usage • The Promag 31 is only to be used for measuring the flow of conductive fluids. • The Promag 31 flowmeter is designed and checked according to the regulations in force EN 61010 “Protection Measures for Electronic Measuring Equipment”). The flowmeter may be dangerous if it is not used for the purpose it was designed for or is used incorrectly. -
Page 3: Table Of Contents
....4.3 Local display Promag 31 ..4.4 Commissioning ... - Page 4 Promag 31 Endress+Hauser...
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Page 5: System Description
For the exact calculation of the energy used in heating and cooling circulations heat counter do their work. Part of a heat counter is the hydraulic transmitter Promag 31. It registers the flow volume of the heat, resp. refrigerating transfer medium. -
Page 6: The Promag 31 Measuring System
The Promag measuring system is fully modular, both mechanically and electrically. The equipment can be extended by exchanging electronic boards. Thus the measur- ing point can be optimally equipped and extended. The illustration below gives an overview of the complete Promag 31 measuring system. Sensor... -
Page 7: Measuring System
1. System Description 1.4 Short description and design of the measuring system Short description The measuring equipment comprises: • Transmitter Promag 31 and • Sensor Promag A or F Compact version: Remote-mounted version (FS or FL version): The Promag 31 transmitter... - Page 8 Output of system/process errors Flow direction recognition • Creep suppression (on/off) Local display Using the Promag 31 local display, important parameters can be read off and controlled at the measuring point directly: • Flow rate and/or totaliser value • Technical units (SI/US units) •...
- Page 9 Turn down/Accuracy class As a hydraulic transmitter appropriate for verification of thermic energy measurement Promag 31 has been tested according to the international recommendation for heat counters (OIML R72) and for warmwater countes and meets their technical require- ments for measurements.
- Page 10 1. System Description Promag 31 Endress+Hauser...
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Page 11: Mounting And Installation
Promag 31 2. Mounting and Installation 2. Mounting and Installation Caution! Pay consistent attention to the notes in this chapter regarding • Type of protection • Temperature ranges • Mounting to assure reliable measurement. 2.1 General hints Type of protection IP 67 (EN 60529) The equipment fulfils all requirements of IP 67. -
Page 12: Transport Instructions For Promag From > Dn 350 / 14
2. Mounting and Installation Promag 31 2.2 Transport instructions for Promag from > DN 350 / 14" Transportation to the installation point The pipe coating on the flanges is protected from damage by protective disks during transportation to the installation point. These are to be removed before installation. - Page 13 Promag 31 2. Mounting and Installation Base of the sensor The sensor should stand on a base which is sufficiently strong to withstand its weight. Fig. 10 Note! The sensor must not be supported by the sheet casing! This can buckle the casing and dam- age the internal magnetic coils.
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Page 14: Hints For Mounting
Please pay attention to the following hints, in order that you may measure correctly and avoid damage to the equipment. Electrode axis The plane in which the electrode axis lies Measuring electrodes with regard to the Promag 31 measuring transmitter is identical for the measuring sensors A and F. Electrode axis Fig. - Page 15 Promag 31 should preferably be installed in the cooler backflow for heat measurement, respectively in the foreflow for refrigerated measurement. Promag 31 should be placed between 2 blockage and control units (see installation scheme on page 5). Fig. 16 Partly filled pipes For inclines a mounting similar to a drain should be adopted.
- Page 16 2. Mounting and Installation Promag 31 Downward pipe (> 5 m) Vent valve With the suggested installation opposite no partial vacuum is created (siphon, vent valve after the sensor). Fig. 18 Installation of pumps If possible avoid mounting the sensor on the suction side of the pump (danger of vacuum!).
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Page 17: Mounting The Sensor
Promag 31 2. Mounting and Installation 2.4 Mounting the sensor Mounting Promag 31 A Length and dimensions See chapter 6.1 “Dimensions and weights”. Mounting The inserted parts are • screwed on to the 1" stub with a skirted nut. • screwed on to the 1" stub direct •... - Page 18 2. Mounting and Installation Promag 31 Mounting Promag 31 F Lengths and dimensions See chapter 6.1 “Dimensions and weights” Mounting The sensor is mounted between the flanges of the pipe (Fig. 22). Since the lining of the measuring pipe is drawn on over the sensor flange, it performs the sealing func- tion at the same time.
- Page 19 Promag 31 2. Mounting and Installation Replacement measuring electrodes • left side: Type DN 1350...2000 • right side: Type DN 350...1200 Fig. 23 The Promag F Type DN 350...DN 2000 is available with replacement electrodes. This version enables the measuring electrodes to be cleaned or replaced under process conditions.
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Page 20: Turning The Transmitter Housing (Compact Version)
2. Mounting and Installation Promag 31 2.5 Turning the transmitter housing (compact version) In the compact version the transmitter housing can be rotated in steps of 90° relative to the sensor. This enables the unit to be adapted to suit the various mounting positions in the pipe. -
Page 21: Mounting The Transmitter (Remote-Mounted Version)
Cable length L Fig. 26 Fixing the wall holder/Stamped lead seal Stamped lead seal for compact version (Promag 31 F for example) The lids of the electronics housing, e.g. connection housing of Promag 31 F (blind and display version) are Factory sealing leaded separately. -
Page 22: Potential Equalisation
Reference electrode therefore sufficient to connect the earthing terminal of the Promag 31 trans- mitter housing to the potential equali- sing line. Fig. 28 With the remote-mounted version this connection is made at the earth terminal of the connection housing (transmitter). -
Page 23: Earthing In An Area With Severe Interference
2.8 Earthing in an area with severe interference In order to make the most of the electro- magnetic compatibility (EMC) of the Promag 31, it is advisable to provide two flange-to-flange links and to con- nect them jointly with the transmitter housing to earth potential. - Page 24 2. Mounting and Installation Promag 31 Endress+Hauser...
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Page 25: Electrical Connection
Promag 31 3. Electrical Connection 3. Electrical Connection 3.1 General information Please note the information in section 2.1 on maintenance of the type of protection IP 67. 3.2 Connection to the transmitter Warning! • Risk of electric shock. Install or wire the unit when it is not live. Failure to comply can also result in damage to electronic components. -
Page 26: Connection Of The Remote-Mounted Version
3. Electrical Connection Promag 31 3.3 Connection of the remote-mounted version (FS) Procedure: Caution! Only connect or disconnect the coil-current cable when the supply is switched off. 1. The connection to the terminal compartment is made as described for the compact version (see section 3.2). -
Page 27: Wiring Diagrams
Promag 31 3. Electrical Connection 3.4 Wiring diagrams Electrical connection: supply, inputs and outputs Fuse Supply cable Earth terminal for protective conductor Earth terminal for cable screen Signal cable Earth terminal (protective conductor) for AC for DC supply = 400 Hz Pulse/frequency output max. - Page 28 3. Electrical Connection Promag 31 Remote-mounted version (FS/FL): Connection between sensor and transmitter Promag 31 F Promag 31 A (FS version) (FS version) Transmitter Transmitter Sensor Sensor Promag 31 F Promag 31 A (FL version) (FL version) Transmitter Transmitter Sensor Sensor Fig.
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Page 29: Cable Specifications
Capacitance: core/screen ≤120 pF/m Cable specifications for use in areas with severe electrical interference The Promag 31 measuring equipment fulfils all general requirements for electromagnetic compatibility (EMC) according to EN 50081 Part 1 and 2 / EN 50082 Part 1 and 2 when installed in accordance with the NAMUR recommendations. - Page 30 3. Electrical Connection Promag 31 Endress+Hauser...
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Page 31: Operation And Commissioning
Promag 31 4. Operation and Commissioning 4. Operation and Commissioning 4.1 Functions of the equipment and works settings The six unit parameters are set inside the housing with the aid of miniature switches. Creep suppression Works setting: Switched on Switch No. 1: ON... - Page 32 4. Operation and Commissioning Promag 31 Status output Works setting: Error messages Switch No. 2: OFF This switched output can optionally be configured for: • Signalling the direction of flow • Error messages: Fault (System error: coil current error, amplifier error...
- Page 33 The current at zero flow (Q = 0) can be set to 0 or 4 mA. The current for the full-scale value is always 20 mA. Extension to 25 mA is possible (≥125 % of the full-scale value). The hydraulic transmitter Promag 31 is always bidirectional (i.e. it always measures in both directions).
- Page 34 Therefore it is possible to extend to 25 mA up to a medium velocity of 10 m/s (see Fig. 39). For the Promag 31 measuring system eight preset pulse-value steps can be selected in terms of the nominal diameter. Setting is made by means of three miniature switches (see section 4.2).
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Page 35: Setting Unit Parameters With Miniature Switches
Promag 31 4. Operation and Commissioning 4.2 Setting unit parameters with miniature switches Warning! Danger of electric shock. Switch off the supply voltage before you unscrew the cover of the electronic compartment of the transmitter housing. Procedure: 1. Loosen the screws of the safety grip (3 mm Allen key). - Page 36 4. Operation and Commissioning Promag 31 Pulse value ⇒ SI units [dm Table /pulse, m /pulse] Switch settings (No. 5, 6 and 7) = 400 Hz at v = 10 m/s) [mm] 0.0001 dm 0.001 dm 0.01 dm 0.1 dm...
- Page 37 Promag 31 4. Operation and Commissioning Pulse value ⇒ US units [gal/pulse] Table Switch settings (No. 5, 6 and 7) = 400 Hz at v = 33 ft/sec) [mm] 0.0001 gal 0.001 gal 0.01 gal 0.1 gal 1 gal 10 gal 100 gal 0.00002087 gal...
- Page 38 4. Operation and Commissioning Promag 31 Full-scale value setting ⇒ SI units [m Table Switch settings (No. 8, 9 and 10) (v = 10 m/s) [mm] 0.5 m/s 1 m/s 1.5 m/s 2 m/s 2.5 m/s 4 m/s 8 m/s 10 m/s 0.005m...
- Page 39 Promag 31 4. Operation and Commissioning Full-scale value setting ⇒ US units [gal/min] Table Switch settings (No. 8, 9 and 10) v = 33 ft/sec [mm] 0.5 m/s 1 m/s 1.5 m/s 2 m/s 2.5 m/s 4 m/s 8 m/s 33 10 m/s 0.02 gal/min...
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Page 40: Local Display Promag 31
4. Operation and Commissioning Promag 31 4.3 Local display Promag 31 With the Promag 31 local display important variables can be read off and controlled di- rectly at the measuring point: • Flow rate and/or totaliser value. • Technical units (SI or US). - Page 41 Promag 31 4. Operation and Commissioning Display functions Display Function Description Display flow rate Display of the current flow rate or totaliser volume; rAtE a neg. flow direction is indicated by a neg. digit To select the measuring unit ⇒ press “Set”...
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Page 42: Commissioning
4. Operation and Commissioning Promag 31 4.4 Commissioning Before switching the measuring equipment on for the first time repeat the following checks: • Check the electrical connections and the allocation of the terminals. • Compare the data on the nameplate with the local mains voltage and frequency. -
Page 43: Fault Location And Remedies
(see chapter 4). • An LED is also situated on the amplifier board of the Promag 31 (see Fig. 46). This LED is always lit as long as the measuring system is operating correctly. In case of error the LED is flushing, thus indicating an error. -
Page 44: Instructions For Fault Location And Remedies
5. Fault Location and Remedies Promag 31 5.2 Instructions for fault location and remedies During manufacture all units pass through various stages of quality control. The last inspection is wet calibration, which is carried out on a calibration rig designed according to the latest state of the art. -
Page 45: Replacing The Transmitter Electronics
Promag 31 5. Fault Location and Remedies 5.3 Replacing the transmitter electronics Warning! • Danger from electric shock! Switch off the power supply before removing the cover to the electronics area of the transmitter housing. Caution! • When replacing the electronic boards, ensure that their markings are identical. - Page 46 5. Fault Location and Remedies Promag 31 Power supply board (Promag 31) Pin base for coil current cable Fixing screw Fixing screw Socket base Fixing screw Socket Plug for supply cable base Fig. 45 Measuring amplifier board (Promag 31) Pin base for connecting the flow simulator “Flowjack”...
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Page 47: Replacing The Fuse
• Chemical and physical properties of the medium measured. Caution! Please carry out the following before you return the Promag 31 unit for repair: • Remove all traces of the medium still adhering. • This is particularly important if the medium is harmful for health, i.e. caustic, poisonous, cancerogenous, radioactive, etc. - Page 48 5. Fault Location and Remedies Promag 31 Endress+Hauser...
- Page 49 Promag 31 A Compact version Electrode axis Wall holder available as accessory Fig. 47 Remote-mounted version (FS) Fig. 48 Weights Compact version: 5 kg (without insert parts) Promag 31 transmitter: 3 kg (5 kg when wall-mounted) Promag A sensor: 2 kg Endress+Hauser...
- Page 50 6. Technical Data Promag 31 Dimensions of the inserted parts for sensor Promag A 2...15 " Internal thread 1" Standard thread ISO 228/DIN 2999 2...15 13.2 16.1 " External thread 16.8 22.0 1" Standard thread ISO 228/DIN 2999 PVC adhesive coupling 2...15...
- Page 51 The face-to-face length is identical with the selected nominal diameter and independent of pressure rating. Weight of compact version Weights Compact version: see table above Promag 31 transmitter: 3 kg (5 kg when wall-mounted) Sensor connection housing: appr. 1 kg Endress+Hauser...
- Page 52 6. Technical Data Promag 31 Promag 31 F DN 350...1000 Compact version Fig. 52 Remote-mounted version Sensor: DN 350...1000 Fig. 53 Weight ANSI AWWA ANSI AWWA [bar] [Class] [Class] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] 34.9...
- Page 53 Promag 31 6. Technical Data 6.2 Technical data: Sensor Sensor Sensor Promag A Promag F Nominal diameter DN 2, 4, 8, 15, 25 DN 25...1000 Nominal pressure PN 40 DIN: PN 10 (DN 200...1000) PN 16 (DN 65...150) PN 40 (DN 25...50) PN 16 /25 (DN 200...300), Option...
- Page 54 6. Technical Data Promag 31 Inside diameter of measuring pipe [mm) Inside diameter of measuring pipe [mm] Sensor Lining [mm] ANSI PTFE (Teflon) Hard rubber [bar] [Class] DIN / ANSI DIN / ANSI Promag A 16.1 22.0 Promag F Class 150...
- Page 55 Promag 31 6. Technical Data Resistance of the lining to vacuum (Standard version) Sensor Lining Limits for vacuum [mbar abs] at different medium temperatures [mm] 25 °C 80 °C 100 °C 120 °C 130 °C 150 °C Promag A 2...25 Promag F 65...1000...
- Page 56 0... + 80 °C hard rubber Caution! At high medium and ambient temperatures it is necessary to mount the Promag F sensor and Promag 31 transmitter separately. Risk of the electronics becoming over- heated (Fig. 54)! Temperature range available only for remote-mounted...
- Page 57 Promag 31 6. Technical Data Sensor Promag F (flange-mounted) Pressure limitations due to fluid temperature (DIN 2413 and 2505) Flange material: steel 37.2 Temperature [°C] Fig. 55 Pressure limitations due to fluid temperature (DIN 2413 and 2505) Flange material: stainless steel 1.4571 Temperature [°C]...
- Page 58 6. Technical Data Promag 31 6.3 Technical data: Transmitter and measuring system Housing material Powder-coated die-cast aluminium Coating Powder-coated 2-component epoxy resin Protection (DIN 40050) IP 67 (EN 60529) Ambient temperature -20...+60 °C Resistance to shock Acceleration up to 2 g/2 h per day; 10...100 Hz...
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Page 59: Nominal Diameter And Flow Rate
2...3 m/s can be adhered to. According to OIML-approvals, system no. ZW 128 and the error tolerances/limits for partial devices of class 4 (+/-3% for hydraulic transmitters) the following counter units are allowed. Promag 31 A [mm] [l/h] [l/h] 1.131... -
Page 60: Error Limits
6. Technical Data Promag 31 6.5 Error limits Measuring uncertainty under reference conditions ± 0.5 % o.r. ± 0.01 % o.f.s. (full-scale value = 10 m/s) Pulse output plus typical ± 10 µA Current output ± 0.1 % o.r. ± 0.005 % o.f.s. -
Page 61: Short Description And Design Of The 7. Approvals
Promag 31 7. Approvals 7. Approvals Endress+Hauser... -
Page 62: Index
Index Promag 31 Index Mounting position Mounting the sensor Adaptor pieces Mounting the transmitter Ambient temperature Auxiliary input NAMUR recommendations Nominal diameter and flow rate Behaviour of the outputs Operation 8, 31 Cable length Cable specifications Cathodic protection Parameters Commissioning... - Page 64 Poland Brazil Myanmar Europe Endress+Hauser Polska Sp. z o.o. Samson Endress+Hauser Ltda. Sein Pyinsayupa Gen. Tranding & Agency Warsaw Sao Paulo Co-op. Soc. Ltd. Austria Tel. (022) 7 20 10 90, Fax (022) 7 20 10 85 Tel. (011) 5 36 34 55, Fax (011) 5 36 30 6 7...