Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Troubleshooting
Related Manuals for halstrup-walcher EMA 200
Summary of Contents for halstrup-walcher EMA 200
- Page 1 Original Instruction Manual EMA 200 Digital Pressure Gauge halstrup-walcher GmbH Stegener Straße 10 D-79199 Kirchzarten Germany Phone: +49 (0) 76 61/39 63–0 Fax: +49 (0) 76 61/39 63–99 E-Mail: info@halstrup-walcher.de Internet: www.halstrup-walcher.de/en/ Document 7100.004074...
- Page 2 EMA 200 Instruction Manual Revision Overview Version: Date: Author: Amendments: 07/2010 Initial Revision 03/2017 Additions 05/2017 Chapter 7.4 Density of the medium 05/2018 Analog output 03/2021 Layout; Certificate of conformity; 01/2022 Chapter 4.3 Switchover pressure range 09/2022 Additions for configuration Density / Pitot factor 12/2022 Revision overview;...
- Page 3 EMA 200 Instruction Manual Purpose of instruction manual This instruction manual describes the features of the EMA 200 digital pressure gauge and provides guidelines for its use. Improper use of this instrument or failure to follow these instructions may cause injury or equipment damage. All individuals responsible for operating...
-
Page 4: Table Of Contents
EMA 200 Instruction Manual Table of Contents Safety precautions ....................5 Appropriate use ......................5 Troubleshooting, maintenance, repairs, disposal ............5 Symbols ........................6 Instrument description ....................7 Functions ........................7 Instrument controls ...................... 7 Start-up ........................8 Electrical connections ....................8 Pneumatic connections .................... -
Page 5: Safety Precautions
EMA 200 is highly suitable for use in laboratory applications. Always observe the operating requirements—particularly the permissible supply voltage—indicated on the rating plate and in the “Technical data”... -
Page 6: Symbols
EMA 200 Instruction Manual 1.3 Symbols The symbols below in these operating instructions point to the risks, which could arise in handling the equipment: It points to a hazard possibly extending from WARNING! injures through to death should the instructions not be followed. -
Page 7: Instrument Description
EMA 200 Instruction Manual 2 Instrument description 2.1 Functions The EMA 200 is a battery-operated, digital pressure gauge for measuring overpressure, vacuum and differential pressure of non-aggressive gases. Operating range is 200 Pa to 200 kPa. Because it is robust, easy-to-use and includes an analogue output, this instrument is especially suitable for maintenance, customer service and record-keeping for heating, ventilation and air-conditioning units. -
Page 8: Start-Up
3.2 Pneumatic connections Connect the EMA 200 to the pressure source at the overpressure port (+) when measuring overpressure, at the vacuum port (-) for measuring vacuum pressure, or at both ports (making certain to connect the + and - ports appropriately) for measuring... -
Page 9: Operating The Instrument
EMA 200 Instruction Manual 4 Operating the instrument The following sections explain how to operate the instrument correctly. 4.1 Switching the instrument on/off Turn the instrument on or off by briefly depressing the key. The instrument displays its measurement range in mbar for roughly 1 s immediately after it is switched on. -
Page 10: Zeroing Key
4.5 Analogue output The EMA 200 has a 0...2V analogue output, allowing it to read out an output voltage proportional to the pressure. When configuring the instrument, users may set the pressure at which the instrument will read out an output voltage of 2.0V. The output voltage is read out of the instrument via a 3.5 mm jack. -
Page 11: Configuration
EMA 200 Instruction Manual 5 Configuration By adjusting the configuration settings, users can adapt the instrument to their specific application. This menu can be activated by depressing the zero-point until 'ConF' appears in the top line of the display. After the operator releases this key, the instrument launches the first item (setting units of pressure). -
Page 12: Media Density (Not Available With 200Kpa Range)
EMA 200 Instruction Manual 5.4 Media density (not available with 200kPa Range) This configuration parameter is located in the bottom line of the display by the symbol g / m 'ro'. The top line displays the density as it is currently set in . -
Page 13: Setting The Scale For The Analogue Output
EMA 200 Instruction Manual 5.6 Setting the scale for the analogue output This configuration parameter is used for setting the pressure at which the analogue output reads out 2V. Users have the option here of setting the analogue output to any desired final pressure between 20 and 100% of the measurement range. -
Page 14: Auto On/Off
EMA 200 Instruction Manual 5.9 Auto On/Off The EMA 200 has an auto on/off function that can be used to avoid consuming battery power unnecessarily. This feature (which can be toggled on and off) will power down the instrument after 20 minutes if the pressure does not change during this time and no keys are pressed. -
Page 15: Troubleshooting
EMA 200 Instruction Manual 6 Troubleshooting Error description Potential cause Corrective action battery symbol active weak battery install new battery battery symbol is blinking battery nearly empty the battery should be replaced display shows ‘batt Lo’ and install new battery... -
Page 16: Technical Data
EMA 200 Instruction Manual 7 Technical data margin of error 0.5% of final full-scale (FS) at 22°C 2°C temperature coefficient 0.04% / °C of FS span temperature coefficient 0.04% / °C of FS (for gradual changes in temperature) - Page 17 EMA 200 Instruction Manual Appendix A: Parts in contact with measurement medium Araldite CY236 / HY988 Beryllium bronze CuBe2 Loctite 242e Mu metal (nickel alloy) Brass CuZn39Pb3 Ferrit Aluminium AlCuMgPb / AlMg3 KEL (FPM: fluorinated rubber) Viton(tubing) Vepuran Vu 4457/51...
-
Page 18: Certificate Of Conformity
EMA 200 Instruction Manual Certificate of Conformity 7100.004074G_EMA200.docx 12/2022 Si/Me/Ka... - Page 19 EMA 200 Instruction Manual Notes:...