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Document 7100.004324 Version 1.0 04/2010
P29 Instruction Manual
Differential Pressure Transducer
for Flammable Gases
halstrup - walcher GmbH
Stegener Straße 10
D-79199 Kirchzarten
Phone:+49 (0) 76 61/39 63–0
Fax:
+49 (0) 76 61/39 63–99
E-Mail: info@halstrup-walcher.com
Internet: www.halstrup-walcher.com
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Troubleshooting
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Summary of Contents for halstrup-walcher P29
- Page 1 P29 Instruction Manual Differential Pressure Transducer for Flammable Gases halstrup - walcher GmbH Stegener Straße 10 D-79199 Kirchzarten Phone:+49 (0) 76 61/39 63–0 Fax: +49 (0) 76 61/39 63–99 E-Mail: info@halstrup-walcher.com Internet: www.halstrup-walcher.com Document 7100.004324 Version 1.0 04/2010...
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Page 2: Table Of Contents
P29 Instruction Manual Table of Contents: 1 Purpose of instruction manual....................4 2 Safety precautions......................... 5 2.1 Safety concept ......................... 5 2.2 Appropriate use........................ 5 2.3 Shipping, assembly, electrical connections and startup........... 5 2.4 Troubleshooting, maintenance, repairs, disposal............. 5 2.5 Symbols ........................... 6 3 Start-up, maintenance, shipping.................... - Page 3 P29 Instruction Manual 8.3.1 Value......................... 16 8.3.2 Hysteresis ......................... 16 8.3.3 TV delay time......................16 8.3.4 Warning signal ......................16 8.3.5 Mode......................... 16 8.4 Settings .......................... 17 8.4.1 Language........................17 8.4.2 Output ........................17 8.4.3 Filter.......................... 17 8.4.4 Warning signal ......................17 8.4.5 Resolution.........................
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Page 4: Purpose Of Instruction Manual
P29 Instruction Manual 1 Purpose of instruction manual This instruction manual describes the features of the P29 and provides guidelines for its use. Improper use of this instrument or failure to follow these instructions may cause injury or equipment damage. Every person who uses this device must therefore read the manual and understand the possible risks. -
Page 5: Safety Precautions
The instrument may only be installed in Category II hazard zones. The P29 is used to measure pressure, volumetric flow, mass flow and flow rate. It may be used in systems with flammable gases taking into account the start-up rules described in Section 3. -
Page 6: Symbols
P29 Instruction Manual This individual must take the instrument out of service until the error has been corrected and ensure that it cannot be used unintentionally. In systems operating with flammable gases, the instrument must be separated from the gas supply lines. -
Page 7: Start-Up, Maintenance, Shipping
P29 Instruction Manual 3 Start-up, maintenance, shipping Caution: Explosion hazard! Flush the system for the required period of time before start-up! 3.1 Start-up Carefully read and follow the start-up instructions listed below. Failure to follow these instructions can lead to an explosion in the instrument and injury to persons. -
Page 8: Maintenance, Repair
P29 Instruction Manual 3.2 Maintenance, repair Maintenance and repair work may only be performed by trained professionals and on behalf of the operator of the plant. The following steps must be performed before beginning maintenance work: • Separate the instrument from the electrical power supply. -
Page 9: Instrument Description
P29 Instruction Manual 4 Instrument description 4.1 Features The P29 is controlled by a microprocessor and can perform the following tasks: • Measurement of pressure and vacuum • Measurement of differential pressure • Measurement of volumetric flow, mass flow and flow rate •... -
Page 10: User Interfaces
P29 Instruction Manual 4.2 User interfaces There are four keys: Meaning (Measurement Mode) Meaning (Menu) Menu Start Menu Go back a menu level Enter Start zero point calibration Confirm Max. display Increase value or scroll up Right Min. display Move the arrow or scroll down... - Page 11 P29 Instruction Manual Output signal Power supply RS232 interface for parameterisation Reset Output signal: Port description Description OUT_I Current output OUT_GND Earth OUT_U Voltage output • Power supply: o 24V DC Left contact => Ground Central contact => +24V DC •...
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Page 12: Front View
The interval between two zero-point calibrations can be adjusted in the Settings menu. Zero-point calibration can also be started with the Enter key if the device is in Measurement mode. The P29 does not respond to keys being pressed during calibration. -
Page 13: Overpressure Protection
8 Menu (optional) If the P29 includes a display, you can use the menu to adjust various settings. Press the Menu key to bring up the menu. In Menu mode, the parent menu item always appears in the top display line. The middle line always shows the current sub-menu item or value to be changed. -
Page 14: Scaling
The output voltage or currents are then copied to this scaled range. The scaled range should always be more than 0.1 times of that of the P29’s measuring range, because otherwise the resolution of the outputs and the accuracy will be poorer. -
Page 15: Value
P29 Instruction Manual 8.2.2.1 Value This is used to set the volumetric flow value displayed at the maximum scaled pressure. 0 is always used as the lower scale value on the volumetric flow display (root-extracted measured value). The maximum pressure is the larger of the two scale values, which is used as a basic calculation. -
Page 16: Warning
P29 Instruction Manual 8.3 Warning Use this menu item to set the warning values. The first menu item that appears here is Select Warning Message (1 or 2). The settings for this warning message should then be changed. Use the “^” and “>” keys to select the number of the warning and press Enter to move to that warning's menu. -
Page 17: Settings
P29 Instruction Manual 8.4 Settings With this menu item, you can adjust various parameters that affect the instrument’s behaviour. The following sub-menu items are available: • Language • Output • Filter • Warning signal • Resolution • Zero-point calibration •... -
Page 18: Zero-Point Calibration
P29 Instruction Manual 8.4.6 Zero-point calibration This parameter specifies the time interval for the automatic zero-point calibration. The entry is in min. Setting the parameter to 0 deactivates automatic zero-point calibration. 8.4.7 CS (creep suppression) This parameter specifies the value for creep suppression as a percentage. If this value falls short of the measured pressure value, the display is set to zero. -
Page 19: Technical Data
P29 Instruction Manual 9 Technical data Measurement data Measurement range See rating plate Accuracy 0.5% +0.3 Pa of the measuring range Resolution Depends on the measuring range (max. 5 relevant places) Ambient conditions Medium Air, non-aggressive gases Operating temperature +10 °C to +50 °C Storage temperature -10 °C to +70 °C... -
Page 20: Trouble Shooting / Servicing
P29 Instruction Manual 10 Trouble shooting / Servicing Maintenance and repair work may only be performed by trained professionals and on behalf of the operator of the plant. It is essential to follow the instructions described in Section 3 Problem... -
Page 21: Dimension Drawing
P29 Instruction Manual 11 Dimension drawing with LCD without LCD... -
Page 22: Menu Tree (Display Option)
P29 Instruction Manual 12 Menu tree (display option) Level 1 Level 2 Level 3 Level 4 Display Pressure mbar mmH2O mmHg inH2O inHg m³/s m³/h kg/s kg/min kg/h f/min km/h Scaling Pressure xxxx.x Bottom xxxx.x Unit mbar mmH2O mmHg inH2O inHg Vol. - Page 23 P29 Instruction Manual Level 1 Level 2 Level 3 Level 4 Warning Warning 1 Warning 2 Value xxxx.x Hysteresis xxxx.x xxxxx ms Warning signal xxxxx ms Mode increasing decreasing Settings Language English German Italian French Output 4 … 20 mA 0 …...
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