Related Manuals for E+E Elektronik EE772
Summary of Contents for E+E Elektronik EE772
- Page 1 EE772 FLOW SENSOR for COMPRESSED AIR and GASES User Manual Hardware and Software BA_EE772 // v2.2 // Modification rights reserved // 193628...
- Page 2 The content will be revised on a regular basis. These changes will be implemented in later versions. The described products can be improved and changed at any time without prior notice. © Copyright E+E Elektronik Ges.m.b.H. ® All rights reserved.
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Page 3: Table Of Contents
Table of contents - HARDWARE ......................1. GENERAL ....................1.1. Safety Instructions ....................1.1.1. Intended Use ................. 1.1.2. Installation, Start-up and Control ....................1.2. Environmental Aspects ..................2. PRODUCT DESCRIPTION ...................... 3. INSTALLATION ....................3.1. Mounting Dimensions ..................3.2. Determining Installation Site .................... -
Page 4: General
The flow sensor is intended to be used for the measurement of air and other non-corrosive gases in pipelines only. Consult the factory first before the measurement of wet or filthy gases. The design of the flow sensor allows for the EE772 to be installed in a pressurized system up to PN40 – is 40 bar (580 psi). -
Page 5: Installation, Start-Up And Control
Consequential damages are excluded from the any liability. 1.2. Environmental Aspects The products from E+E Elektronik are developed and designed in due consideration to the importance of the ® protection of the environment. Therefore, disposal of the product also should not lead to pollution of the environment. -
Page 6: Product Description
PRODUCT DESCRIPTION The flow sensor of the series EE772, based on the measurement principle of thermal mass flow, is suited for the measurement of flow of air and gases in pipelines. Measurement of for instance the consumption of com- pressed air, nitrogen, CO or other non-corrosive and non-flammable gases. -
Page 7: Installation
INSTALLATION 3.1. Mounting Dimensions EE772-T19 / EE772-T20 EE772-T3 Compact Remote probe (4.53) (5.71) The bottom part of the housing is mounted with 4 screws (not in the scope of supply). Max. screw diameter: 4.5 mm (0.17 inch) e.g. 4.2 x 38 mm DIN 7938H Screws cable gland M16x1.5... -
Page 8: Determining Installation Site
3.2. Determining Installation Site • The installation site should be easy accessible and free of vibrations and shocks. • Observe at least 260 mm (10.24 inch) clearance above the housing with the signal conditioning, in order to be able to remove the sensing probe if necessary. •... -
Page 9: Required Length Of Straight Pipe
3.4. Required Length of Straight Pipe The flow sensor should be installed as far as possible from disturbances of the flow. The causes for distur- bance of the flow are for instance, reducers, elbows, T-pieces, valves, gate valves, etc. The specified meas- urement accuracy can be achieved only when the following straight inlet and outlet pipe lengths are installed: •... -
Page 10: Assembly Of The Measurement Section
3.5. Assembly of the Measurement Section In order to install or remove the gauge mounting block, the pipeline system should be depressurized. • All connections to be made with appropriated sealing material on the threads. • The sealing material should not change the area of the inner cross section of the pipe. It must be warranted that the connections after installation are free of leaks. -
Page 11: Installation Of The Sensing Probe Into The Gauge Mounting Block
3.6.2. Installation of the Sensing Probe into the Gauge Mounting Block Make sure that the pipe line is depressurized! Make sure that the pipe line is depressurized! • Remove transport protection cap of the head of the sensing probe. • Mount the sensing probe in the gauge mounting block in such a way that the alignment pin fits in the recess on the gauge mounting block. -
Page 12: Installation Of The Sensing Probe Into The Gauge Mounting Block With Hot Tap Valve
3.6.3. Installation of the Sensing Probe into the Gauge Mounting Block with Hot Tap Valve The gauge mounting block with hot tap valve allows for the instalment and removal of the sensing probe under pressure, without interrupting the process flow. Operate the gauge mounting block with hot tap valve only with the hand, without tools! Functionallity: Position OPEN - MEASURE: The sensor head is immersed into the pipe. -
Page 13: Electrical Connections
ELECTRICAL CONNECTIONS Important note: The manufacturer cannot be held responsible for personal injuries or damage to property as a result of incorrect handling, installation, wiring, power supply and maintenance of the device. Before electrical connections are made turn off the power supply first. If not observed the electronics can be damaged as a result. -
Page 14: Bus Output (Optional)
4.2. Bus Output (Optional) 4.2.1. M-Bus (Meter-Bus) The M-Bus (Meter Bus) is a field bus for recording consumption data. Transmission is carried out serially on a reverse polarity protected two-wire line. The flow sensor as M-Bus slave requires a separate supply voltage. No specific topology (line or star) is prescribed for the cabling. -
Page 15: Modbus Rtu
SI or US/GB units. The measurement unit can be changed using the configuration software. For resetting the MIN/MAX-Values write 0 to the corresponding write register. For Modbus protocol setting please see Application Note AN0103 (www.epluse.com/EE772). Modbus Map: Register... -
Page 16: Control Components
5.3. Display / Indicator with Keypad (Optional) An optional two-line display is available for the flow sensor EE772. The display is an integral part of the cover of the housing and has two soft-keys for the control of the indicator. -
Page 17: Indication Of The Analogue And Pulse Output
Depending on the configuration of the outputs either the measured values, the status of the relay or the consumption is indicated. measurand measuring value unit Maximal : 1.3 m : 323.8 m T : 27.97 °C Measurand SI Unit US Unit Standardized Flow SFPM Temperature... -
Page 18: Reset Of The Consumption Counter Or The Min / Max Value
After that the several different measurement values can be indicated using the UP or DOWN keys. Keep the DOWN or UP key pressed for > 3 sec to exit the MIN / MAX mode. Maximal : 323.8 m 5.3.4. Reset of the Consumption Counter or the MIN / MAX Value Keep both the UP and DOWN key pressed for >... -
Page 19: Maintenance
MAINTENANCE 7.1. Removal of the Sensing Probe of the Gauge Mounting Block Gauge mounting block without hot tap valve Make sure that the pipe line is depressurized! • Loose the retainer nut and pull the sensor probe from the gauge mounting block. •... -
Page 20: Technical Data
Potential-free, max. 44 V DC, 500 mA switching capacity Pulse output Totalizer, pulse length: 0.02...2 s Digital interface (optional) RS485 (EE772 = 1 unit load) Protocol Modbus RTU Default settings Baud rate 9 600 , parity even, stop bits 1, slave ID 1... -
Page 21: Factory Setting Of Outputs
3) Supported baud rates: 9 600, 19 200, 38 400 and 57 600; find more details about communication setting in the User Manual and the Modbus Application Note at https://www.epluse.com/EE772. 4) Supported baud rates: 600, 1 200, 2 400, 4 800 and 9 600; find more details about communication setting in the User Manual. -
Page 22: General
CONFIGURATION SOFTWARE LIMITED LIABILITY E+E Elektronik shall not be held liable for any damages or consequential damages (for example, but not restricted to, loss of earnings, interruption of business, loss of information and data or any other financial losses) resulting from the installation, use or impossibility of use of an E+E Elektronik software product and any associated support services or non-performance of support services. -
Page 23: Installation
Installation In order to set up a smooth installation of the configuration software of the EE772, admin authorization for the personal computer is required. • During installation of the software the EE772 should NOT be connected with the USB cable to the computer. -
Page 24: User Interface
Select the COM-port number as shown in the device manager. These settings are done only once and at the first start of the configuration software. The settings are stored for future use. User Interface Basic information: After retrieving the data from the transmitter, the basic information of the device is shown here. Status message: Here are the messages shown about the status and other information. -
Page 25: Menu Toolbar
Menu Toolbar 4.1. File Delete status message deletes the status messages. Exit closes the configuration software. 4.2. Transmitter Please note: The term “Transmitter” is used synonymously with “Sensor” in this user manual. Read reads the actual configuration of the transmitter. Send uploads the ‘new’... -
Page 26: Output Mode - Analogue
5.1.4. Output Mode – Analogue Within the limits of measurement range and the scaling of the output, the analogue output can be freely configured and scaled. Either a standard output signal (0 - 5 V, 0 - 10 V, 0 - 20 mA, 4 - 20 mA) can be selected or a user defined range for the current / voltage output (e.g. -
Page 27: Output Mode - Pulse
Window The relay is activated as long as the measuring value is between the values of set point 1 and set point 2. The hysteresis of each set point is fixed at 0.2% of the measuring range. set point 1 set point 2 e.g.: set point 1 = 100 m /h;... -
Page 28: Display
5.3. Display If an optional display is installed, at the tab Display the following items can be entered: Drop-down input field “Display-Mode” • Single spaced • Double spaced (default) Checkbox “Backlight” • Checked = ON • Unchecked = OFF input field “Description (free text), a user specific name (max. -
Page 29: 2-Point Adjustment
upper adjustment point at 80% of measuring range lower adjustment point at 20% of measuring range lower adjustment point automatically at 0% of m.r. upper adjustment point automatically at 100% of m.r. characteristic line before adjustment characteristic line before adjustment 100% 100% characteristic line after adjustment... -
Page 30: Reset To Factory Settings
5.4.3. Reset to Factory Settings Customer-adjustment can be reset to the factory settings by checking the appropriate checkbox and subse- quently clicking the “reset” button. 5.5. Measuring Values Overview The tab measuring values provides an overview of the retrieved actual measurement values of the flow meter (transmitter). -
Page 31: Change Of The Standard Conditions
The flow meter is factory set to the ordered gas (medium). If the setting for the process-gas modified or changed between calibration- and process gas, the changed setting has to be sent to the transmitter. Use “send data to the transmitter and read ...” button. The “active gas”... - Page 32 HEADQUARTERS SUBSIDIARIES E+E Elektronik Ges.m.b.H. E+E Elektronik China E+E Elektronik Germany E+E Elektronik Korea Langwiesen 7 18F, Kaidi Financial Building, Schöne Aussicht 8 C Suite 2001, Heungdeok IT 4209 Engerwitzdorf No.1088 XiangYin Road 61348 Bad Homburg Valley Towerdong, 13, Austria 200433 Shanghai Tel.:...
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