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Density Transducer
for continuous measurement of density and concentration of liquids
with HART
Operating Instructions
Bopp & Reuther Messtechnik GmbH
Am Neuen Rheinhafen 4 - 67346 Speyer
Postfach 1709 - 67327 Speyer
Phone +49(0)6232/657-0
Fax +49(0)6232/657-505
http://www.burmt.de
info@burmt.de
Communication
DIMF 2.0 TVS
Änderungen der Abmessungen, Gewichte
und anderer technischer Daten vorbehalten.
Printed in the Federal Republic of Germany
BA 06730-01-01 e
Rev. no. 01099-003
1
30
Page
of
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Table of Contents
Summary of Contents for Bopp & Reuther DIMF 2.0 TVS
- Page 1 Density Transducer DIMF 2.0 TVS for continuous measurement of density and concentration of liquids with HART Communication Operating Instructions Bopp & Reuther Messtechnik GmbH Änderungen der Abmessungen, Gewichte BA 06730-01-01 e Am Neuen Rheinhafen 4 - 67346 Speyer und anderer technischer Daten vorbehalten.
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Page 2: Table Of Contents
TABLE OF CONTENTS Foreword Technical data Density transducer type DIMF 2.0 Evaluation electronics of transmitter type TR Required differential pressure Intended use Measuring principle Installation examples By-pass installation 4.1.1 Standard configuration 4.1.2 with sampling 4.1.3 with sampling and sight glass 4.1.4 with sampling and calibration or flushing connection Installation into the product line... - Page 3 10.2.6 Short description of the control unit 10.3 Channel overview / channel assignment 11 Equations 12 Maintenance 13 Error detection/troubleshooting 13.1 Errors/defects caused by the liquid 13.2 Errors/defects caused by the transmitter 13.2.1 Error code table 13.3 Errors/defects caused by the density transducer 14 Self-monitoring functions 14.1 Monitoring supply voltage...
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Page 4: Foreword
Foreword Transport, delievery, storage Storage and transport: Protect the devices against humidity, soiling, impact, and damage. Inspection of the delivery: Upon receipt, check the delivery for completeness. Compare the data of the device with the data on the delivery note and in the order records. Report any transport damage immediately after delivery. -
Page 5: Technical Data
Technical data 1.1 Density transducer type DIMF 2.0 Density range 0 to 5000 kg/m³ Calibration range 400 to 2000 kg/m³ (Standard) see Configuration Data Sheet supplied better than ±0.02 % (±0.2 kg/m³) Accuracy (Standard) (under reference condition) see Configuration Data Sheet supplied better than ±... -
Page 6: Evaluation Electronics Of Transmitter Type Tr
1.2 Evaluation electronics of transmitter type TR Functions Excites the oscillating element of the density transducer to its natural frequency. Equipped with a two-line display and four keys for displaying data and configuring the on-site transmitter. HART communication When the process data are changed, the user can perform a simple modification of the set parameters. -
Page 7: Required Differential Pressure
1.3 Required differential pressure Density transducers of the DIMF series measure independently of flow rate and also at flow rate zero. Their application is therefore normally problem-free. Care must, however, be taken to ensure that the operating flow rate in the transducer - updates the sample fast enough - equalizes the temperature in the tranducer - avoids air or gas bubbles or... -
Page 8: Intended Use
Intended use The density transducer type DIMF allows the continuous measurement of the density of liquids and liquid mixtures. The proven oscillating element principle ensures great accuracy in combination with outstanding long-term stability. The easy-to-get-on-with-construction assures reliable operation, even under tough process conditions. 3 Measuring principle The real sensor of the density transducer is an oscillating element in the form of a tube bent into a tuning fork. -
Page 9: With Sampling
4.1.2 with sampling Part Qty. Shut-off valve ø12 Straight tube fitting ø12 T-type connector ø12 Screw cap ø12 4.1.3 with sampling and sight glass Part Qty. Sight glass R3/8“ Shut-off valve ø12 Straight tube fitting ø12 Male connector R3/8“- ø12 T-type connector ø12 Screw cap ø12 4.1.4... -
Page 10: Installation Into The Product Line
4.2 Installation into the product line Installation into the product line is possible up to a flow rate of 50 l/min (using H O as an example). For other viscosities, differing pressure losses must be considered. Caution! The pressure in the product line must never fall below the vapor pressure. Direct solar irradiation of the density transducer must be avoided. -
Page 11: Piping
5.2 Piping - Inner diameter of connecting pipe: min. ø12 - Sampling connection to be fitted laterally when product line is in horizontal position. - By-pass pipes should be as short as possible. - If necessary, provide both heat insulation and flushing connections (the latter close to the density transducer). -
Page 12: Electrical Connection
6 Electrical connection 6.1 Power supply voltage - The transmitter type TR must be supplied with 24 V DC, 2-wire technique. - Terminal voltage 14 to 30 V DC (terminals 1 and 2) - Recommendation: 2-wire cables, twisted and shielded (cable diameter 6-12 mm) - Ground cable shield according to section 16.1 Wiring diagram. -
Page 13: Additional Requirements In Hazardous Area For Intrinsically Safe Operation
6.2 Additional requirements in hazardous area for intrinsically safe operation - Observe installation requirement in accordance with DIN EN 60079-14 / VDE 0165, Part 1. - Connected loads power supply voltage Umax = 30 V Imax = 110 mA Pmax = 825 mW ≤... -
Page 14: On-Site Adjustment
9 On-site adjustment An on-site adjustment is carried out if an error has been confirmed due to certain on-site conditions after the reasons according to section 13.1 have been checked. By changing the transducer constant K simple adjustment can be performed. Example: Measurement condition Temperature must be relatively stable Rho (measured density) = 996.6 Kg/m³... -
Page 15: Process Variable
10.1.1 Process variable Measured value: The current measured value is displayed. The measured value can be selected from a list with density or concentration operating modes. The units are defined in this list. The measured value is firmly assigned to the ... -
Page 16: Basic Settings
10.1.3 Basic settings Device information Model code: The model code of the device is displayed. Device identification: The serial number of the electronics is displayed. Device type: The device type is displayed. Sensor type: Defaults to 0. Manufacturer code: The manufacturer's name is displayed. Distributor code: The distributor's name is displayed. -
Page 17: Operating Modes
10.1.4 Operating modes Simulation Current simulation: In order to test the devices connected in series, a fixed output current of 3.9 to 22 mA can be set. After the test, the current value 0 mA must be entered to end simulation. Alarm 21.8 mA: An alarm signal can be transmitted via the current loop. -
Page 18: Keys
10.2.2 Keys The transmitter type TR has four operating keys: - increases or decreases the channel no. in operating mode - increases or decreases the digits in the programming mode ↵ - moves to the next input position (the corresponding digit blinks) - accepts the current channel contents when shifting to the very right and leaving the display - toggles between the lower and the upper line (only in operating mode) -
Page 19: Operating Mode
10.2.5 Operating mode By selecting the operating mode (channel E) you define the calculation method according to which the measured variable is to be acquired and the output signal is to be represented. By selecting the operating mode you define ... -
Page 20: Channel Overview / Channel Assignment
10.3 Channel overview / channel assignment Chann Operating mode Unit Limiting values Concentration (%) min. max. Density (ρ) 1 (2) Operating density (α=0) Reference density kg/m³ 10000 Reference density (α≠0) Current output Current output Proportional to Proportional to density concentration Oscillating frequency Oscillating frequency 10000... -
Page 21: Equations
# In operating mode 1, the measured value can be displayed in any unit by configuring the parameters accordingly. 11 Equations Linearization frequency ⇒ density Equation no. 1 ρ • τ + K • τ ρ Uncorrected operating density Transducer constants (programmable) τ... -
Page 22: Maintenance
12 Maintenance Two measures are recommended: cleaning and zero point adjustment. Cleaning The density transducer should be cleaned when, for example, liquids tending to sedimentation are measured. The easiest method is to increase the flow velocity through the density transducer to the maximum permissible value for some minutes to flush away sediments and solids. -
Page 23: Errors/Defects Caused By The Liquid
13.1 Errors/defects caused by the liquid Symptom Possible reason Remedy Increase pressure in product line Gas or air bubbles in the Negative measuring error liquid or inside the density Deaerate product line Unstable indication transducer Increase flow velocity in the transducer Increase flow velocity to approx. -
Page 24: Errors/Defects Caused By The Transmitter
13.2 Errors/defects caused by the transmitter Symptom Possible reason Remedy Check power supply voltage Power supply voltage too low (> 14 V DC, < 30 V DC) Cable resistance too high Larger cable cross section Check current output Current output does not react (see section 14 Self-monitoring or reacts incorrectly Transmitter is defective... -
Page 25: Error Code Table
13.2.1 Error code table Description Remedy No error occurred Watchdog reset or interruption of power Check power supply voltage supply Resolve short-circuit, return device to Bopp & P1000 line short-circuited Reuther Messtechnik, if necessary Re-establish connection, return device to P1000 line interrupted Bopp &... -
Page 26: Self-Monitoring Functions
14 Self-monitoring functions 14.1 Monitoring supply voltage After a power failure a power-ON reset will be carried out, and the error code 1 will be displayed in channel "[" or the error will be reported via HART 14.2 Error message An error code will be displayed on channel "]". -
Page 27: Appendix
16 Appendix 16.1 Wiring diagram DIMF density transducer measurement of density and Lmin Transmitter 250ς 4 to 20mA power supply unit HART 15 to Not used HART Interface SensorPort Test circuit HART Communicator Grounding the cable shield Detail A Braided shield 2-wire cable, twisted For max. -
Page 28: Application Examples For Safe Areas
16.2 Application examples for safe areas Local indication without signal transmission DIMF Pulse 4-20mA Ground shield in cable gland External ground terminal Analog transmission 4 to 20mA to indicator or recorder DIMF Pulse Indicator 0 0 0 4-20mA Ground shield in cable gland External ground terminal... -
Page 29: Application Examples For Hazardous Areas
16.3 Application examples for hazardous areas Local indication without signal transmission Hazardous area Safe area DIMF Barrier Pulse Steel 9001/01-280-100-10 or similar 4-20mA Ground shield in cable gland External ground terminal Analog transmission 4 to 20mA, electrically isolated, to indicator or recorder Hazardous area Safe area DIMF... -
Page 30: Example Of Configuration Log
16.4 Example of configuration log Dichte/Konz. Transmitter DIMF Pag 1/1 4/11/99 (Bopp & Reuther Messtechnik GmbH) 9:21:04 Configuration file: Measuring point Denominator TEST Date 23/06/1999 TAG no. TEST Production no. 33105 Message for user WITH TRANSDUCER COIL CONNECTION Manufacturer information Type name DIMF Universal command...