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Summary of Contents for halstrup-walcher P29
- Page 1 Original Instruction Manual for Differential Pressure Transducer Type P29 for Natural Gas 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...
- Page 2 P29 Instruction Manual Revision overview Version: Date: Author: Amendments: Initial Revision 09/2014 Screw terminal for output signal as 4-pole 07/2016 New display/ user keys External zero-point calibration as option 10/2017 Assembly information (heat/vibrations) Dimension drawings certificate of conformity 12/2018 Chapter 2.1 Safety concept Chapter 3.1 Start-up...
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Page 3: Table Of Contents
P29 Instruction Manual Table of Contents: Purpose of instruction manual ..................... 5 Safety precautions ....................... 6 2.1 Safety concept ....................... 6 2.2 Appropriate use ......................6 2.3 Changing to the device ....................6 2.4 Shipping, assembly, electrical connections and startup ..........6 2.5 Troubleshooting, maintenance, service, repairs, disposal .......... - Page 4 P29 Instruction Manual Warning signal ......................19 Filter (from Rev2.14) ....................19 7.4 Settings ........................19 Language ........................ 19 Output ........................20 Filter ........................20 Warning signal ......................20 Resolution ....................... 20 Zero-point calibration ....................20 CS (creep suppression) ..................20 Lightning .........................
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Page 5: Purpose Of Instruction Manual
P29 Instruction Manual 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 6: Safety Precautions
During operation, both pressure ports must be connected to the pressurized system. The P29 has been subjected to an ignition hazard analysis according to DIN EN 1127-1:2019. Under normal operating conditions, there is no explosive atmosphere in the transducer. -
Page 7: Troubleshooting, Maintenance, Service, Repairs, Disposal
Although the P29 pressure transducer is highly robust, it is nevertheless a precision instrument and should be handled with care. Avoid mounting the P29 in the direct vicinity of any sources of heat or radiation. Ideally, the instrument should be mounted vertically on a wall not subject to vibration. -
Page 8: Symbols
P29 Instruction Manual 2.6 Symbols The symbols given below are used throughout this manual to indicate instances when improper operation could result in the following hazards: WARNING! This warns you of a potential hazard that could lead to bodily injury up to and including death if the corresponding instructions are not followed. -
Page 9: Start-Up, Maintenance, Shipping
P29 Instruction Manual 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 10: Maintenance, Repair
If necessary, the user can carry out regular leak tests as a simple pressure test. For the leak test, shut off the two pressure lines to the P29 and note the initial pressure (display or output signal). Observe the differential pressure for 1 minute. The differential pressure must not drop over this period. -
Page 11: Instrument Description
P29 Instruction Manual Instrument description 4.1 Features The P29 is controlled by a microprocessor and can perform the following tasks: Measurement of differential pressure Measurement of volumetric flow, mass flow and flow rate using the orifice plate Display of a measured value ... -
Page 12: Internal Ports And Keys
P29 Instruction Manual Press the “▲“ key to display the current mass or volume flow. Press the “►“ key to display the current value for the operating hours meter. 4.3 Internal ports and keys figure 4-2 Internal connectors and push buttons... -
Page 13: Front View
P29 Instruction Manual Output signal: Designation Description Signal range current output 0 …20 mA 0,00 mA…20,75 mA current output 4 …20 mA 4,00 mA…20,00 mA earth voltage output 0 …10V -2,0V…+12,0V voltage output -5V …+5V -5,0V…+7,0V +24V starts external zero-point calibration... -
Page 14: Readout Of Volume, Mass Flow And Flow Velocity
P29 Instruction Manual 4.5 Readout of volume, mass flow and flow velocity With square-root extracted output signal, the assignment of differential pressure volume, mass flow or flow velocity can be set via the serial interface with a PC software or, for instruments with display, via the menu using the four keys in the top cover. -
Page 15: Zero-Point Calibration Cycle
It is irrelevant whether the zero point adjustment has been deactivated or the P29 is in the menu mode. Overload capacity The P29 has an internal overpressure safeguard that protects the precision pressure measurement capsule from damage: ... -
Page 16: Lc-Display (Optional)
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 17: Top
7.2.1.2 Bottom With this menu item, you can set the pressure at which the output will achieve its minimum value. Any value within the P29’s measuring range can be selected. 7.2.1.3 Unit Use this menu item to select the pressure unit. The following pressure units can be selected: ... -
Page 18: Unit
7.3 Warning INFORMATION: For safety reasons, relay outputs are not possible with the P29. However, exceeding or falling below the switching thresholds can be signalled visually and acoustically. Use this menu item to set the warning values. The first menu item that appears here is Select Warning Message (1 or 2). -
Page 19: Hysteresis
P29 Instruction Manual Hysteresis This item can be used to select the hysteresis for the particular warning. The action described in 7.3.1 applies to the entry unit. The hysteresis is always positive. Tv delay time The entry value of the warning is derived from the unfiltered pressure value. With this parameter, you can now specify how long the pressure value can be exceeded or not met until the warning is activated. -
Page 20: Output
P29 Instruction Manual Output With this parameter, you can select the output and output range. You can choose from the following options: 4 … 20 mA -5V … +5V 0 … 20 mA 0V … 10V... -
Page 21: Contrast
P29 Instruction Manual Contrast This parameter adjusts the contrast of the display. This makes it possible to compensate for different temperatures or viewing angles. Values between 0 (low contrast) and 32 (high contrast) are possible. Read factory settings The factory settings are established in the instrument before delivery. With this menu item, they can be reactivated if required. -
Page 22: List Of Commands
P29 Instruction Manual List of commands Command Description Model Rev. Displays the current pressure in the floating selected unit (see command UnitD) Displays the status: 8-digit Bit6: Warning 1 activated Bit5: Warning 2 activated Bit5: Pressure overload Bit1: zeroing activated... - Page 23 P29 Instruction Manual Parameters Description Model ARelai2 Dropout delay for relay 2 [ms] unsigned int 2.11 (0 .. 30000) Filter Time constant filter [ms] unsigned int (25 .. 60000) Lang Language unsigned int (1=GB, 2=GER, 3=I, 4=F) AutoNull Automatic zero-point calibration [min] unsigned int (0=Off, 0 ..) 2999)
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Page 24: Technical Data
P29 Instruction Manual Technical data Measurement data Measurement range 250 / 500 Pa 1 / 2.5 / 5 / 10 kPa (freely scalable from 10 to 100% within a measurement range) Margin of error ± 0.2 % FS or (at 20°C; ±2°C) ±... -
Page 25: Trouble Shooting / Servicing
To check the fuse, follow the steps below: 1. Open the device 2. Note the status LED (see figure 10-1 inside view P29) this does not light up during normal operation 3. Push the reset button (see figure 4-3 circuit board) a. -
Page 26: Replacing The Fuse
P29 Instruction Manual 10.2 Replacing the fuse You can replace the fuse to avoid unnecessary service and the associated device failure. The fuse can be removed by hand. See figure 10-1 inside view P29Fehler! Verweisquelle konnte nicht gefunden werden.. The device must be disconnected from the power supply during the following steps. -
Page 27: Dimension Drawing
P29 Instruction Manual Dimension drawing figure 11-1 dimensional drawing... -
Page 28: Menu Tree (Display Option)
P29 Instruction Manual 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 xxx.xx )* Bottom xxx.xx )* Unit mbar mmH2O mmHg... - Page 29 P29 Instruction Manual Level 1 Level 2 Level 3 Level 4 Warning Warning 1 Warning 2 Mode increasing decreasing Value xxxx.x )* Hysteresis xxxx.x )* xxxxx ms Tn(Rev2.11) xxxx ms Warning signal xxxxx ms Filter(Rev2.14) Settings Language English German Italian French 4 …...
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Page 30: Certificate Of Conformity
P29 Instruction Manual Certificate of Conformity NEU_7100.004324_P29.docx 02/2023... - Page 31 P29 Instruction Manual Notes:...
- Page 32 P29 Instruction Manual Notes:...
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