EE741 EPLUSE | Alldatasheet
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Technical content
for Compressed Air and Gases EE741
v3.4 Modification rights reserved | 2 EE741 Versatility The modular and compact EE741 is dedicated for accurate metering and monitoring of compressed air and technical gases such as O 2, N2, Ar or CO2 in DN15 to DN50 pipes. Measuring principle The thermal measuring principle and the well-proven E+E hot film sensing element lead to best long-term stability and fast response time. Measurement performance Outstanding measuring accuracy even in the lower measuring range is achieved by an application-specific multi-point factory adjustment performed at 7 bar (102 psi) and allows for reliable leak detection. Easy installation and configuration The EE741 is optimized for easy installation, configuration and maintenance. The setup can be performed using either display and push buttons or the free product configuration software EE-PCS. EE741 with gauge mounting block DN15 ( 1/2") and DN32 (1-1/4") EE741 assembly on the gauge mounting block Inline Flow Sensor for Compressed Air and Gases
v3.4 Modification rights reserved | 3 Modular Design Once the mounting block is built into the pipeline, the sensing unit can be installed and removed without disassembling the pipework. As a result, the EE741 is also ideal for temporary measurement with several mounting blocks. EE741 Sensor for three different pipe diameters EE741-N50 with gauge mounting block with flanges Pipe diameter EE741 EE741-N50
v3.4 Modification rights reserved | 4 Display ▪ Shows instantaneous values and overall consumption ▪ Intuitive device setup with pushbuttons ▪ Rotation in 90° increments for convenient readability in any mounting position Interfaces ▪ User configurable via display or PC ▪ 0 - 20 / 4 - 20 mA output ▪ Two switch outputs ▪ Pulse output ▪ Modbus RTU ▪ M-Bus ▪ IO-Link Measurands ▪ Standard volume flow [m 3/h, m3/min, l/min, l/s, SCFM] ▪ Mass flow [kg/h, kg/min ] ▪ Standard flow [m/s, SFPM] ▪ Temperature [°C, °F] ▪ Integrated consumption meter (totalisator) for cost-effective consumption analysis without additional data logger Sensing unit ▪ One for each three pipe diameters ▪ Installation and removal without disassembling the pipework facilitates regular calibration ▪ Best accuracy due to application- specific adjustment under pressure Sensing head with hot film sensor ▪ Robust design in stainless steel ▪ Very short response time ▪ Wide measuring range ▪ Long-term stable and accurate ▪ Negligible pressure drop ▪ Highly insensitive to contamination ▪ No additional pressure and temperature compensation required
Features
v3.4 Modification rights reserved | 5 Features / Dimensions Gauge Mounting Block ▪ Best accuracy due to precise and reproducible positioning of the sensing head ▪ Aluminum or stainless steel ▪ Can be operated with sealing plug also without sensing unit Available diameters ▪ DN15 / DN20 / DN25 ▪ DN32 / DN40 / DN50 Gauge mouting block with flanges ▪ Robust design for demanding industrial application ▪ Entire media-contacting surface in stainless steel 1.4404 ▪ Easy installation due to flange design ▪ Precise and reproducible positioning of the sensing unit for best accuracy ▪ Can be operated with sealing plug also without sensing unit Available diameters ▪ DN32 / DN40 / DN50
v3.4 Modification rights reserved | 6 Gauge mounting block EE741 50 (1.97) Internal thread: Whitworth thread according to EN 10226 (old DIN 2999) or NPT M12x1 84.5 (3.33) Pipe diameter Mounting block Thread Rp or NPT DN15 1/2" DN20 3/4" DN25 1" DN321) 1-1/4" DN40 1-1/2" DN50 2" 1) Rp thread only Gauge mounting block EE741-N50 Internal thread: Whitworth thread according to EN 10226 (old DIN 2999) or NPT M12x1 88.5 (3.48) 123 (4.84) Gauge mouting block with flanges EE741-N50 83 (3.3) DN32: Ø38 (1.5) DN40: Ø48.3 (1.9) DN50: Ø60.3 (2.4) 300 (11.8) 45° Values in mm (inch) Dimensions
v3.4 Modification rights reserved | 7 Technical Data Measurands Volume Flow (V'n) Standard conditions Factory setting according to DIN 1343 pn = 1 013.25 mbar (14.7 psi); Tn = 0 °C (273.15 K), freely configurable via EE-PCS Measuring range 1) DN15 (1/2") in air at standard conditions DN20 (3/4") DN25 (1") DN32 (1-1/4") DN40 (1-1/2") DN50 (2") Accuracy2) in air @ 7 bar (102 psi) (abs) and 23 °C (73 °F) ±(3 % of measured value + 0.3 % of full scale) Temperature dependency ±(0.25 % of measured value / °C deviating from 23 °C (73 °F)) Pressure dependency Compensation by entering the system pressure using EE-PCS 3) Response time t 90 <2 s Sampling interval 0.1 s 1) For factory setting, see User Manual. 2) The tolerance specifications include the uncertainty of the factory calibration with a coverage factor k=2 (2 x standard deviation). The tolerance was calculated in accordance with EA-4/02 following the GUM (Guide to the Expression of Uncertainty in Measurement). into the EE741, the pressure dependency is ±0.5 % of the measured value / bar deviating from 7 bar. Temperature (T) Accuracy @ 24 V DC, 20 °C (68 °F) ±0.7 °C (±1.26 °F)
v3.4 Modification rights reserved | 8 Digital Digital interface RS485 (EE741 = 1 unit load) Protocol Factory settings Supported Baud rates 1) Measured data types Modbus RTU 9 600 Baud, parity even, 1 stop bit, Modbus address 240 600, 1 200, 2 400, 4 800, 9 600, 19 200, 38 400 and 57 600 FLOAT32 and DOUBLE64 Protocol Factory settings Supported Baud rates 2) Measured data types M-Bus 2 400 Baud, parity even, 1 stop bit, M-Bus address 240 600, 1 200, 2 400, 4 800 and 9 600 FLOAT32 or INT32 Protocol Interface specification Measured data types Service interface IO-Link IO-Link v1.1, IO-Link device, COM2 (38.4 kBaud) FLOAT32 or INT32 USB 1) For further details on the communication setting: See User Manual and Modbus Application Note at www.epluse.com/ee741 . 2) For further details on the communication setting: See User Manual. Outputs Analogue Analogue output (scalable) 0 - 20 mA / 4 - 20 mA RL < 500 Ω RL = load resistance Switching output DC PNP, max. 100 mA, Vdrop < 2.5 V, 10 kΩ pull-down Configurable: N/C or N/O, hysteresis, window Pulse output Totalizer (Consumption meter) Pulse length 0.02...2 s General Power supply class III USA & Canada: Class 2 supply necessary 18 - 30 V DC Current consumption, max. with display without display ≤120 mA (Pmax ≤ 2.5 W) ≤60 mA (Pmax ≤ 1.6 W) Electrical connection M12x1 plug, 4 pole Operating pressure, max. 16 bar (232 psi) / PN16 Humidity working range 0…100 %RH, non-condensing Ambient temperature range With display Without display 0...+50 °C -20...+60 °C Medium and storage temperature range -20...+60 °C Medium Compressed air or none corrosive gases Material Enclosure sensing unit Sensing head / sensor element Gauge mounting block Gauge mounting block with flanges Polycarbonate (PC) Stainless steel 1.4404 / glass Aluminium anodised or stainless steel 1.4404 Entire media contacting surface in stainless steel 1.4404 Enclosure protection rating IP65 Electromagnetic compatibility EN 61326-1 EN 61326-2-3 Industrial environment FCC Part15 Class A ICES-003 Class A Conformity Technical Data
v3.4 Modification rights reserved | 9 Ordering Guide Feature Description Code Hardware Configuration EE741- Pipe diameter / type DN15, DN20, DN25 No code DN32, DN40, DN50 N50 Output Analogue / switch / pulse output A6 RS485 (with Modbus RTU) J3 M-Bus J5 IO-Link J10 Display Without display No code Display with backlight D2 Accessories Without AC0 M12x1 cable mount connector, socket, for self assembly AC2 Cleaning Without No code Degreased for oxygen measurement 1) AF2 Software-Setup (Analogue-) Outputs Factory setting pipe diameter (selectable) DN15 (1/2") DN15 DN20 (3/4") DN20 DN25 (1") DN25 DN32 (1 1/4") for N50 only DN32 DN40 (1 1/2") for N50 only DN40 DN50 (2") for N50 only DN50 Output signal 1 Analogue output 0 - 20 mA GA5 4 - 20 mA No code Switch output GA9 Output signal 2 Pulse output (only with output 2 = Consumption) No code Switch output GB9 Output 1 measurand Standardized volumetric flow V'n [m 3/h] No code Standardized volumetric flow V'n [m 3/min] MA84 Standardized volumetric flow V'n [l/min] MA85 Standardized volumetric flow V'n [l/s] MA86 Standardized volumetric flow V'n [ft 3/min] MA87 Mass flow m' [kg/h] MA80 Mass flow m' [kg/min] MA81 Standardized flow vn [m/s] MA22 Standardized flow vn [SFPM] MA23 Temperature T [°C] MA1 Temperature T [°F] MA2 Output 2 measurand Consumption Qn [m 3] (only for output 2 = Pulse output) No code Standardized volumetric flow V'n [m 3/h] MB83 Standardized volumetric flow V'n [m 3/min] MB84 Standardized volumetric flow V'n [l/min] MB85 Standardized volumetric flow V'n [l/s] MB86 Standardized volumetric flow V'n [SCFM] MA87 Mass flow m' [kg/h] MB80 Mass flow m' [kg/min] MB81 Standardized flow vn [m/s] MB22 Standardized flow vn [ft/min] MB23 Temperature T [°C] MB1 Temperature T [°F] MB2 Units (for process parameters) 2) SI units No code US units U2 Medium3) Air No code Nitrogen FU2 CO2 FU3 Oxygen (O2) FU4 Argon FU7 1) The parts of the sensor / mounting block in contact with the medium are oil and grease-free. Only for DN15, DN20 and DN25. 2) For IO-Link: no code. 3) Other gases upon request. Position 1: Sensing unit The EE741 flow sensor consists of a sensing unit (position 1) and a gauge mounting block (position 2).
v3.4 Modification rights reserved | 10 Order Example Position 1 - Sensing unit: EE741-A6D2AC2DN15 Feature Code Description Pipe diameter / type No code DN15, DN20, DN25 Output A6 Analogue / switch / pulse output Display D2 Display with backlight Accessories AC2 Cable mount connector, socket, for self assembly Cleaning No code Without Pipe diameter (selectable) DN15 DN15 (1/2") Output signal 1 No code Analogue output 4 - 20 mA Output 1 measurand No code Standardized volumetric flow V'n [m 3/h] Output signal 2 No code Pulse output (only with output 2 = Consumption) Output 2 measurand No code Consumption Qn [m 3] (only for output 2 = Pulse output) Units (for process parameters) No code SI units Medium No code Air Position 2: Gauge mounting block Ordering Guide Feature Description BSP thread NPT thread Flange Version EE741- Aluminum gauge mounting block DN15 (1/2") HA079015 HA179015 DN20 (3/4") HA079020 HA179020 DN25 (1") HA079025 HA179025 DN32 (1-1/4") HA079032 DN40 (1-1/2") HA079040 HA179040 DN50 (2") HA079050 HA179050 Stainless steel gauge mounting block DN15 (1/2") HA078015 HA178015 DN20 (3/4") HA078020 HA178020 DN25 (1") HA078025 HA178025 Stainless steel gauge mounting block for oxygen DN15 (1/2") HA081015 HA181015 DN20 (3/4") HA081020 HA181020 DN25 (1") HA081025 HA181025 Stainless steel gauge mounting block with flanges DN32 (1-1/4") HA278032 DN40 (1-1/2") HA278040 DN50 (2") HA278050 Position 2 - Gauge mounting block: HA079015 Feature Code Description Aluminum gauge mounting block HA079015 DN15 (1/2") BSP thread
v3.4 Modification rights reserved | 11 Accessories Accessories Code Inlet and outlet path BSP thread, stainless steel, for mounting block DN15 (1/2") DN20 (3/4") DN25 (1") DN32 (1-1/4") DN40 (1-1/2") DN50 (2") HA070215 HA070220 HA070225 HA070232 HA070240 HA070250 Gasket set for gauge mounting block with flanges DN32 (1-1/4") DN40 (1-1/2") DN50 (2") HA074532 HA074540 HA074550 Cable M12x1 female, angled 90°, 4 poles 2 m (6.6 ft) HA010824 For further information see datasheet Accessories .
Company Headquarters & Production Site E+E Elektronik Ges.m.b.H. Langwiesen 7
4209 Engerwitzdorf | Austria
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