Related Manuals for E+E Elektronik EE776 Series
Summary of Contents for E+E Elektronik EE776 Series
- Page 1 EE776 Series FLOW METER for COMPRESSED AIR and GASES Manual Hardware and Software BA_EE776_e // V2.2 // technical data are subject to change // 193630...
- 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. Symbol Clarification ....................1.2. Safety Instructions ....................1.2.1. Intended Use .................. 1.2.2. Installation, start up and control ....................1.3. Environmental aspects ..................2. PRODUCT DESCRIPTION ...................... 3. INSTALLATION ....................3.1. Mounting dimensions .................. -
Page 4: General
Symbol Clarification This symbol indicates safety instructions. The safety instructions have to be carried out unconditionally. If disregarded loss, injury, or damage may be inflicted to people and property. In any case E+E Elektronik ® Ges.m.bH. cannot be hold responsible. -
Page 5: Installation, Start Up And Control
Consequential damages are excluded from the any liability. 1.3. 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 flowmeter of the series EE776, based on the measurement principle of thermal mass flow, is suited for the measurement of flow of air and gasses in pipelines. Measurement of for instance the consumption of compressed air, nitrogen, helium, CO2 or other non-corrosive and non-flammable gasses. The EE776 measures the volume flow at standard conditions according to DIN 1343 (P0 = 1023.25 mbar;... -
Page 7: Installation
INSTALLATION 3.1. Mounting dimensions Cross-section (4.53“) Drilling Plan: bore hole: cable gland M16x1.5 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 EE776 - Enclosure - signal conditioning Ø... -
Page 8: Determining Installation Site
3.2. Determining installation site • The installation site should be easy accessible and free of vibrations and shocks • Observe enough clearance above the mounting position, in order to be able to install and remove the sensing probe: at least 450 mm (17.7”) for probe length 165 mm (6.5”) DN50 (2”) upt o DN100 (4”) at least 600 mm (23.6”) for probe length 315 mm (12.4”) DN125 (5”) up to DN300 (12”) at least 750 mm (30.0”) for probe length 465 mm (18.3”) DN350 (14”) up to DN700 (28”) •... -
Page 9: Installation Position
3.3. Installation position The flow meter has a specified direction of flow. Make sure that the arrow on the tip of the sensing probe and the marking on the mounting grip is pointing in the direction of the flow. Pipeline vertical; Sensor horizontal recommended Marking of the flow direction... -
Page 10: Required Length Of Straight Pipe
3.4. Required length of straight pipe The flowmeter should be installed as far as possible from disturbances of the flow. The causes for disturbance of the flow are for instance, reducers, elbows, T-pieces, valves, gate valves, etc. The specified measurement accuracy can be achieved only when the following straight inlet and outlet pipe lengths are installed: •... -
Page 11: Installation In The Pipe Line
3.5. Installation in the pipe line The patented non-return protection device for reliable installation combines three functions in one unit: • Non-return protection device The sensor can only be pushed in one direction during installation. The sensor will not move back at all, even when it is released. - Page 12 • If the measurement sensor is immersed too far into the pipe line, it can be retracted by unlocking the non-return pro- tection device. To do this, slowly press the knurled nut inwards. As with a pressure point in a car clutch, this permits the immersion depth to be set to the precise millimetre.
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Page 13: Setting The Pipe Diameter
• Connect the measurement sensor and the evaluation unit to the sensor cable. Sensor cable Sensor cable 3.6. Setting the pipe diameter The flowmeter is factory-set so that the average corrected flow speed is measured in the pipe. The standardized volumetric flow is calculated by the flowmeter as follows: * di * π/4 * 3600... -
Page 14: Electrical Connections
ELECTRICAL CONNECTIONS Before electrical connections are made turn off the power supply first. If not observed the electronics can be damaged as a result. Only a qualified electrotechnical engineer may install the device. • Unscrew the four screws and remove the cover of the housing. •... -
Page 15: 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 flowmeter as M-Bus slave requires a separate supply voltage. No specific topology (line or star) is prescribed for the cabling. -
Page 16: Modbus Rtu
Secondary addressing In addition to primary addressing, the EE77x transmitter provides the option of secondary addressing. The fields of identification number, manufacturer, version and medium are used together as the secondary address. The exact sequence of the secondary addressing is described in detail in the M-Bus Standard: http:// www.m-bus.com/files/MBDOC48.PDF. -
Page 17: Control Components
CONTROL COMPONENTS 5.1. Jumper for Output If the signal output is altered from relay to analogue output or vice versa, Jumper Output 1 has to be relocated. If the analogue output is altered from a current to a voltage output or vice versa, Jumper Out-1 has to be relocated. -
Page 18: 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 con- sumption 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... -
Page 19: 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 Maximal : 1.3 m 5.3.4. -
Page 20: Maintenance
MAINTENANCE Regular cleaning of the sensor is necessary is used in applications with wet or filthy gasses. Cleaning of the sensor is necessary prior to calibration or evaluation. 7.1. Cleaning of the sensor of the flowmeter Do not use an abrasive cleaning agent, an organic solvent containing halogen or acetone. •... -
Page 21: Ball Valve 1/2" For Parallel Measurement
8.4. Ball valve 1/2” for parallel measurement Ball valve 1/2” with lateral fitting R 1/4” for mounting of pressure or dew point sensor. (2.76) Material: Brass Order code: HA074003 Ø15 (0.6) Lateral fitting R 1/4“ 82.5 (3,25) 8.5. Tapping sleeve (delivery without ball valve) rubber sealing Material: stainless steel 1.4301 25 (... - Page 22 Site preparation work The mounting area must be freely accessible, and there must be sufficient working space available in the area around the pipe. A stable ladder is required for mounting work at a height of max. 3.5 m above the floor (height of pipe). At greater heights, a working platform must be provided.
- Page 23 Turn further using a spanner until the retainer slides over the bolt yoke and engages into position. Tighten the nuts evenly using a spanner (min. 300mm in length) until the delrin® washers curve very slightly around the nuts. The delrin® washers being slightly misshapen does not affect the function of the sleeve. The following torques are set when using a torque wrench: M12 : 65 Nm M14 : 85 Nm...
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Page 24: Technical Data
TECHNICAL DATA Measuring value Flow Measurand Volumetric flow at standard conditions acc. DIN 1343 = 1013.25 mbar = 0 °C (14.7 PSI) (32 °F) Measuring range 0.2...100 Nm/s or 0.2...200 Nm/s (40...19685 SFPM) (40...39370 SFPM) Accuracy ± (1.5% of measuring value + 0.8% of full scale) in air at 9bar (130.5psi) (abs) and 23°C (73°F) Temperature coefficient ±... -
Page 25: Factory Setting Analogue Output
9.1. Factory setting analogue output Analogue output [0...10 V / 0(4)...20 mA] standardized volumetric flow standardized volumetric flow mass flow pipe inner Ø from up to unit up to unit up to unit DN Zoll di (mm) low (L1) high (H2) low (L1) high (H2) low (L1) high (H2) 2"... -
Page 26: 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 27: Configuration Of The Usb Interface (Virtualcom)
2.1. Configuration of the USB Interface (VirtualCOM) After the startup of the software, the correct VirtualCOM interface for the USB driver must be configured The number for the used USB interface can be found under: Start => Settings => Control Panel => System => Hardware => Device Manager The setting is done under menu “Extras”... -
Page 28: User Interface
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. Input screen: Input screen for the configuration or adjustment of the flowmeter. Menu tool bar: Selection of menu items. -
Page 29: Transmitter
4.2. Transmitter Read reads the actual configuration of the transmitter. Send uploads the ‘new’ configuration to the transmitter. The following settings are uploaded to the transmitter • Units • Output 1 • Output 2 • Display mode • Pressure transmitter Prior to uploading the ‘new’... -
Page 30: Output Mode - Switch (Relay)
5.1.5. Output mode – switch (relay) In the field for the “Switch-mode”, one can select “Hysteresis” or “Window”. The field for “Type” is to determine the switch action of the relay, NO = Normally Open (activate to close), NC = Normally Close (activate to open). Under “Measuring range”... -
Page 31: Output Mode - Pulse
5.1.6. Output mode – pulse If output 2 is configured for pulse, the measurand can be consumption only. Under “Pulse”, the duration of the pulse and the pulse value (Significance level of pulse) can be freely configured. Volume Flow [m Number of Pulses Pulse Value [m /Pulse] Hour... -
Page 32: Adjustment
5.4. Adjustment The user can perform an adjustment for the measurands normflow and temperature in air. The configuration software distinguishes between a 1-point and a 2-point adjustment automatically, depending on how many reference points for adjustments are entered. The values entered for the customer’s adjustment are stored in the electronics of the sensing probe and are therefore not lost if the electronics of the signal conditioning are replaced (see page 6) If the checkbox “Performing customer-adjustment”... -
Page 33: 2-Point Adjustment
5.4.2. 2-point adjustment With a 2-point adjustment procedure the lower adjustment point must be between 0 and 40% of the measur- ing range, and the upper adjustment point between 60 and 100% of the measuring range. If the adjustment point is between 40 and 60% of the measuring range, automatically a 1-point adjustment procedure will be executed instead. -
Page 34: Measuring Values Overview
5.5. Measuring values overview The tab measuring values provides an overview of the retrieved actual measurement values of the flowme- ter (transmitter). Clicking on “Fetch values” will retrieve the actual measurement and MIN / MAX values for flow, volume flow, temperature, mass flow and pressure (only if a pressure transmitter is connected) from the transmitter –... -
Page 35: Changing The Standard Conditions
5.6.2. Changing the standard conditions The flowmeter is factory-set to standard conditions conforming to DIN 1343. Factory setting: P = 1013.25 mbar, t = 0°C (273.15 K) The corrected volume flow measured value is calculated in line with the standard conditions set. 5.6.3. - Page 36 HEAD OFFICE: E+E ELEKTRONIK Ges.m.b.H. Langwiesen 7 A-4209 Engerwitzdorf Austria Tel: +43 7235 605 0 Fax: +43 7235 605 8 info@epluse.com www.epluse.com SALES OFFICES: E+E CHINA / BEIJING Tel: +86 10 84992361 info@epluse.cn www.epluse.cn E+E CHINA / SHANGHAI Tel: +86 21 61176129 info@epluse.cn...
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