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halstrup-walcher P26 Instructions Manual

Differential pressure transducer
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Document 7100.004084C Version 4.2 02/2015
Instruction Manual for P26
Differential Pressure
Transducer
halstrup - walcher GmbH
Stegener Strasse 10
D-79199 Kirchzarten
GERMANY
Phone:+49 (7661) 39 630
Fax:
+49 (7661) 396 399
E-Mail:
info@halstrup-walcher.com
Internet: www.halstrup-walcher.com

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Summary of Contents for halstrup-walcher P26

  • Page 1 Instruction Manual for P26 Differential Pressure Transducer halstrup - walcher GmbH Stegener Strasse 10 D-79199 Kirchzarten GERMANY Phone:+49 (7661) 39 630 Fax: +49 (7661) 396 399 E-Mail: info@halstrup-walcher.com Internet: www.halstrup-walcher.com Document 7100.004084C Version 4.2 02/2015...

  • Page 2: Table Of Contents

    P26 Instruction Manual Table of Contents: 1 Purpose of instruction manual ..................... 4 2 Safety precautions ....................... 5 2.1 Appropriate use ......................5 2.2 Shipping, assembly, electrical connections and startup ..........5 2.3 Troubleshooting, maintenance, repairs, disposal ............5 2.4 Symbols ......................... 6 3 Instrument description ......................
  • Page 3 P26 Instruction Manual 7.3.6 Filter ........................17 7.3.7 Mode ........................17 7.4 Settings ........................17 7.4.1 Language ........................ 17 7.4.2 Output ........................17 7.4.3 Filter ........................17 7.4.4 Warning signal ......................17 7.4.5 Resolution ....................... 18 7.4.6 Zero-point calibration ....................18 7.4.7 CS (creep suppression) ..................

  • Page 4: Purpose Of Instruction Manual

    P26 Instruction Manual 1 Purpose of instruction manual This instruction manual describes the features of the P26 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

    2 Safety precautions 2.1 Appropriate use The P26 is used to measure pressure, volumetric flow, mass flow and flow rate. Always observe the operating requirements—particularly the permissible supply voltage— indicated on the rating plate and in the “Technical data” section of this manual.

  • Page 6: Symbols

    P26 Instruction Manual 2.4 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 7: Instrument Description

    P26 Instruction Manual 3 Instrument description 3.1 Features The P26 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 8: User Interfaces

    P26 Instruction Manual 3.2 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 cursor or scroll down...

  • Page 9: Internal Ports And Keys

    P26 Instruction Manual 3.3 Internal ports and keys Standart version with external zero point calibration...
  • Page 10 P26 Instruction Manual Standard-Version Output signal Relay 1 Relay 2 Power supply RS232 interface for PC Reset Version mit externer Nullierung Output signal Relay 1 Relay 2 Power supply ext. offset calibration RS232 interface for PC Reset...
  • Page 11 P26 Instruction Manual Output signal: Port description Description 1 OUT_I Current output 2 OUT_GND Earth 3 OUT_U Voltage output Z ZERO-Calibr.(Option) +24V -> ext. zero calibration  Relay 1: Port description Description 4 REL1_NO Normally open contact 5..REL1_C Central contact...

  • Page 12: Front View

    P26 Instruction Manual 3.4 Front view RS -232 or USB(optional) Cable bushings: Signal Relay Power supply Pressure ports: RS-232:  Port description Description Reception Send Earth  USB: Port description Description Power Power supply for USB from PC D- bidirectional...

  • Page 13: Zero-Point Calibration Cycle

    7 Menu (optional) If the P26 includes a display, you can use the menu to adjust various settings. Press the Menu key to bring up the menu.

  • Page 14: Display

    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 P26’s measuring range, because otherwise the resolution of the outputs and the accuracy will be poorer.

  • Page 15: Volumetric Flow

    P26 Instruction Manual 7.2.2 Volumetric flow This menu item is used to adjust the volumetric flow display values. The following sub-menu items are available:  Value  Unit 7.2.2.1 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).

  • Page 16: Unit

    P26 Instruction Manual 7.2.4.2 Unit Use this menu item to select the flow rate unit. The following flow rate units can be selected: m/s, mph, f/s, f/min, km/h 7.3 Warning Use this menu item to influence the behaviour of the relays. The first menu item that appears here is Select Relay.

  • Page 17: Filter

    P26 Instruction Manual 7.3.6 Filter Here you can specify if the unfiltered or the filtered pressure value is used as signal input for the relays section. For each relay the filter can be switched on or off. 7.3.7 Mode Here you can specify whether the relay is activated if the warning pressure is exceeded or not met (relay switching direction) This affects the processing of the hysteresis value.

  • Page 18: Resolution

    P26 Instruction Manual 7.4.5 Resolution This parameter affects the display resolution. The display is changed according to the adjusted values. For example, if the setting is 1%, the display changes to showing the measuring range in 1% jumps. This can be used with severely fluctuating pressures to steady the display.

  • Page 19: List Of Commands

    P26 Instruction Manual 8.3 List of commands Command Description Type Returns the pressure value in the selected unit floating (see command UnitD) Returns the status: 8 places Bit6: relay1 switched on Bit5: relay2 switched on Bit2: overpressure Bit1: zero-point calibration active...
  • Page 20 P26 Instruction Manual Parameter Description Type Filter Filter (time in ms) unsigned int 25 … 60000) Lang Language unsigned int (1=GB, 2=D, 3=I, 4=F) AutoNull Automatic zero-point calibration [min] (0=Off … 2999) Sound Sound unsigned int (1=On, 0=Off) TSound Sound length [msec] unsigned int (0 …...

  • Page 21: Technical Data

    P26 Instruction Manual 9 Technical data Measurement data Measurement range See rating plate Accuracy 0.5% +0.3 Pa of scaled range (40…100% of end value) Resolution Depends on the measuring range (max. 5 relevant places) Ambient conditions Medium Air, non-aggressive gases Operating temperature +10 °C to +50 °C...

  • Page 22: Dimension Drawing

    P26 Instruction Manual 11 Dimension drawing 14.5 39.5 147.5±1.5...

  • Page 23: Menu Tree

    P26 Instruction Manual 12 Menu tree 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. Flow Value xxxxxxx.x...
  • Page 24 P26 Instruction Manual Level 1 Level 2 Level 3 Level 4 Warning Relay 1 Relay 2 Value xxxx.x Hysteresis xxxx.x xxxxx ms TN(Rev2.11) xxxxx ms Warning signal xxxxx ms Filter(Rev2.14) off, on Mode increasing decreasing Settings Language English German Italian...

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