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Summary of Contents for Kobold KME
- Page 1 Operating instructions Flow meter for compressed air and gases BA_KME_e // V1.3 // Technical data subject to change // 194573...
- Page 2 KOBOLD Messring GmbH provides no warranty of any kind for this publication and accepts no liability for improper use of the products described. This publication might contain technical inaccuracies or typographical errors. The content is revised regularly and is not subject to change management. The manufacturer reserves the right to modify or change its described products at any time.
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Page 3: Table Of Contents
............................22 Factory settings of the outputs DN15 / DN20 / DN25 ..................23 Factory settings of the outputs DN32 / DN40 / DN52 ..................24 EU Declaration of Conformance ........................25 Operating instructions for KME flow meter for compressed air and gases... -
Page 4: Hardware
The operation manual may not be used for the purposes of competition without the written consent of KOBOLD Messring GmbH and may not be forwarded to third parties. Copies may be made for internal purposes. -
Page 5: Mounting, Start-Up And Operation
Consequential damages are excluded from the liability. environmental aspects Products from KOBOLD Messring GmbH are developed and manufactured observing of all relevant re- quirements with respect to environment protection. Please observe local regulations for the device disposal. For disposal, the individual components of the device must be separated according to local recycling regulations. -
Page 6: Product Description
CO2 or other non-corrosive and non-flammable gases. The KME measures the volume flow under standard conditions. The standard conditions according to DIN 1343 (1013.25 mbar; 0 °C) are factory-set. Additionally, KME measures also the mass flow, the standardized flow and the temperature. KME has two signal outputs which can be configured as an analogue output (current), switch output or pulse output for consumption metering. -
Page 7: Changing The Pipe Diameter
Switch point Switch point 1 NO (normally open contact) NO (normally open contact) NC (normally closed contact) NC (normally closed contact) Fig. 2 Hysteresis mode Fig. 3 Window mode Operating instructions for KME flow meter for compressed air and gases... -
Page 8: Pulse Output (Out 2) And Consumption Meter
Measured values below the shutdown threshold have no effect on the output signal, dis- play and consumption meter. The minimum shutdown value can be set in m³/h or ft³/min. Operating instructions for KME flow meter for compressed air and gases... -
Page 9: Mechanical Installation
• Air (medium) purity at the mounting location shall comply to ISO 8573-1:2010, at least Class 3.4.4. • The medium and the ambient conditions at the mounting location shall be non-condensing. • In compressed air networks, KME shall be installed after the air dryer. In the absence of a dry- er, KME shall be installed after the condensate separator and appropriate filters. • Observe the flow direction in the pipe. -
Page 10: Process Pressure
Before mounting or removing the transmitter, the pipeline must be depressurised. Due to its measuring principle, the measurement accuracy of the KME is quasi-independent of the actual process pressure. Besides, the device is factory adjusted at 7 bar (102 psi) absolute pressure. -
Page 11: Inlet And Outlet Measurement Path
25 x DN 5 x DN one level Two 90° elbows, on 30 x DN 5 x DN two levels, T-piece Valve, slider 50 x DN 5 x DN Operating instructions for KME flow meter for compressed air and gases... -
Page 12: Installation Of The Gauge Mounting Block
In case the gauge mounting block has been operated without transmitter, remove the sealing plug with a WAF 13 spanner. Remove the protective cap from the sensing head (fig. 7) and insert carefully the sensing head of the transmitter into the gauge mounting block. Fig. 7 Remove protective cap Operating instructions for KME flow meter for compressed air and gases... -
Page 13: Electrical Installation
M-Bus / Meter bus pulse output (projected) (projected) 1...V+ 1...V+ 1...V+ 2...Output 1 2...RS485 A (=D+) 2...M-Bus 3...GND 3...GND 3...GND 4...Output 2 4...RS485 B (=D-) 4...M-Bus M12 connector on the transmitter Operating instructions for KME flow meter for compressed air and gases... -
Page 14: Switch And Pulse Outputs
The M-Bus (Meter Bus) is a field bus for recording consumption data. Transmission runs serially on a reverse polarity protected two-wire line. The KME flow meter as M-Bus slave requires a sep- arate supply voltage. There is no prescribed specific topology (line or star) for the wiring. Normal phone cable of type J-Y(St)Y Nx2x0.8 mm can be used. -
Page 15: Modbus Rtu (Projected)
Nm³/min 32-bit float 31521 MAX value standard volume flow l/min 32-bit float 31523 MAX value standard volume flow 32-bit float 31525 MAX value standard volume flow SCFM 32-bit float Operating instructions for KME flow meter for compressed air and gases... - Page 16 1 or 2 Slave address 1...247 The recommended baud rate for several devices in the Modbus RTU network is 9600. Bus termination resistor: Bus termination is required for the last flow meter in a Modbus RTU network. The 120 Ohm termination resistor is located behind the blind of the USB port and can be switched on and off (fig. 11) Fig. 11 Bus termination resistor Operating instructions for KME flow meter for compressed air and gases...
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Page 17: Usb Configuration Interface
Remove the blind cover Fig. 13 Plug in the USB cable For KME setup and configuration via USB interface it is necessary to install the Product Configuration Software on a personal computer. Display The LCD-display (optional) shows the actual measured values and the overall consumption. The complete KME setup and configuration can be performed with the control keys and intuitive, self explanatory menu guidance. -
Page 18: Measured Value Display
The display menu can be navigated and settings made using the four control keys allow for easy navigation and intuitive device setup..SELECT/SAVE ... BACK/CANCEL ... UP/increase value ... DOWN/decrease value Operating instructions for KME flow meter for compressed air and gases... - Page 19 The response time t < 2 seconds according to the specs is achieved for averaging less than 10 values. With averaging 50 values the response time is 5 seconds. Operating instructions for KME flow meter for compressed air and gases...
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Page 20: Error Messages
For use with polluted media, the sensing head should be periodically cleaned. removing the transmitter from the gauge mounting block Depressurize the pipeline before mounting or removing the transmitter unit. Ensure that the line is depressurized and release the mounting screws of the transmitter unit (fig. 20 and 21). Operating instructions for KME flow meter for compressed air and gases... -
Page 21: Cleaning The Sensing Head
Connecting cable, 2 m PUR-cable ZUB-KAB-12 K002 Connecting cable, 5 m PUR-cable ZUB-KAB-12 K002 Sealing plugs for the gauge mounting block (for operating the pipeline ERS-KME-DS38 without the transmitter unit) Operating instructions for KME flow meter for compressed air and gases... -
Page 22: Technical Data
2) The flow meter was adjusted at 7 bar (102 psi) (abs). At an operating pressure other than 7 bar (102 psi) (abs), the error can be corrected by entering the actual system pressure (display menu or configurator software). Operating instructions for KME flow meter for compressed air and gases... -
Page 23: Factory Settings Of The Outputs Dn15 / Dn20 / Dn25
15000 1500 DN25 23600 15000 1500 Temperature [°C] DN15 DN20 DN25 Temperature [°F] DN15 DN20 DN25 Pulse output: Pulse duration: 0.1 sec Pulse value: 1 m³ Measured value averaging: Operating instructions for KME flow meter for compressed air and gases... -
Page 24: Factory Settings Of The Outputs Dn32 / Dn40 / Dn52
DN50 17.2 Standard flow [Nm/s] DN32 DN40 DN50 Standard flow [SCFM] DN32 23600 15000 1500 DN40 23600 15000 1500 DN50 23600 15000 1500 Temperature [°C] DN32 DN40 DN50 Temperature [°F] DN32 DN40 DN50 Operating instructions for KME flow meter for compressed air and gases... -
Page 25: Eu Declaration Of Conformance
Also the following EC guidelines are fulfilled: 2014/30/eU eMC Directive 2011/65/eU roHS (category 9) Hofheim, 08 March 2018 H. Peters M. Wenzel General Manager Proxy Holder Operating instructions for KME flow meter for compressed air and gases... - Page 26 Operating instructions for KME flow meter for compressed air and gases...
- Page 27 Operating instructions for KME flow meter for compressed air and gases...
- Page 28 www.kobold.com...
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