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Related Manuals for senseca PRO 241-2
Summary of Contents for senseca PRO 241-2
- Page 1 OPERATING MANUAL PRO 241-2 PRO 245-2 Absolute manometers P-000105-10-EN 03/2025...
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Page 2: Table Of Contents
PRO 241-2 / PRO 245-2 – Absolute manometers Contents General information ..........................3 1.1 Product identification .......................... 3 1.2 Safety information ..........................4 Overview ..............................5 2.1 Scope of delivery ............................ 5 Description............................. 6 Preparing the instrument ........................8 Measurement mode ......................... 10 5.1 Hold function ............................11... -
Page 3: General Information
PRO 241-2 / PRO 245-2 – Absolute manometers 1 General information Read this document carefully and familiarize yourself with the operation of the device before using it. Keep this document ready to hand and in the immediate vicinity of the device so that it is always avail- able to the personnel/user in case of doubt. -
Page 4: Safety Information
PRO 241-2 / PRO 245-2 – Absolute manometers 1.2 Safety information Fault-free operation and operational safety of the device can only be guaranteed if the general safety requirements and the specific safety requirements in this document are observed. Do not use the device in climatic conditions other than those specified in this document. -
Page 5: Overview
PRO 241-2 / PRO 245-2 – Absolute manometers 2 Overview PRO 241-2 and PRO 245-2 are professional handheld absolute pressure meters. PRO 245-2 also has data logging capabilities. The meters have an internal digital absolute pressure sensor. Offset and slope user correc- tions allows compensating any possible sensor drift with time, for the best measuring accu- racy. -
Page 6: Description
PRO 241-2 / PRO 245-2 – Absolute manometers 3 Description Pressure port. Left function key: runs the command shown at the bottom left on display. OK key: confirms the selection. key: in measurement display cycles through the various available visualization modes;... - Page 7 PRO 241-2 / PRO 245-2 – Absolute manometers 12. Right function key: runs the command shown at the bottom right on display. 13. Foldable stand: pull to open the stand. 14. Magnet, for attachment to metal surfaces. 15. Battery compartment fixing screw.
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Page 8: Preparing The Instrument
PRO 241-2 / PRO 245-2 – Absolute manometers 4 Preparing the instrument Power supply The instrument is powered by 4 AA size alkaline batteries, already assembled in the device as standard. If for some reason (e.g., shipping rules) the batteries are not already assembled, unscrew the battery cover fixing screw and remove the cover, then insert the batteries as shown below. - Page 9 PRO 241-2 / PRO 245-2 – Absolute manometers Attention! Use a hose with a diameter compatible with the pressure port. The inner diameter of the hose should not be too large to avoid pressure loss and should not be too small to avoid mechanically forcing the port when inserting the hose.
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Page 10: Measurement Mode
PRO 241-2 / PRO 245-2 – Absolute manometers 5 Measurement mode To switch on the instrument, press the ON/OFF key. After a few seconds, the instrument dis- plays the measured value. Note: when the instrument is turned on for the first time, it automatically enters the menu displaying some factory settings (language, date/time, etc.);... -
Page 11: Hold Function
PRO 241-2 / PRO 245-2 – Absolute manometers Parameter displayed numerically and graphically. To change the unit of measurement, see the Configuration chapter [ p.13]. 5.1 Hold function The Hold function, which can be activated/deactivated by pressing the right function key, freezes the current measurement value on the display. -
Page 12: Reset Of The Statistical Values
PRO 241-2 / PRO 245-2 – Absolute manometers 5.3 Reset of the statistical values To reset the statistical values, press the left function key (Select) in the measurement screen with the maximum/medium/minimum values, the measurement is highlighted in negative, then press the left function key (Clear). -
Page 13: Configuration
PRO 241-2 / PRO 245-2 – Absolute manometers 6 Configuration Press the MENU key to enter the configuration menu. The menu is structured in levels. The current level is indicated by the number of overlapping bars in the menu header:... - Page 14 Configurable only in PRO 245-2 between COM interface (for logging and ‒ serial communication) or Mass storage (for viewing logging files from PC). In PRO 241-2 the mode is always COM interface. Alarm settings Type of alarm signaling: Off, acoustical (buzzer) and/or optical (flashing ‒...
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Page 15: Configuring A Parameter
PRO 241-2 / PRO 245-2 – Absolute manometers 6.2 Configuring a parameter Configuring a parameter may require choosing an option from those proposed, or setting a numerical value. Configuring a parameter by choosing an option from those proposed: The current setting is marked by the check mark. To change it, choose an option with the down/up arrow keys, then press OK to confirm. -
Page 16: Favorite Functions (Menu Shortcuts)
PRO 241-2 / PRO 245-2 – Absolute manometers 6.3 Favorite functions (menu shortcuts) Frequently used menu items can be added to a list of favorite functions so that they are easily accessible without the need to navigate the menu structure. -
Page 17: Protected Mode
PRO 241-2 / PRO 245-2 – Absolute manometers 6.4 Protected mode The configuration of the instrument can be protected with a numeric code (PIN) that is re- quired to access the menu or send serial commands. By default, the protected mode is disabled. To enable the protected mode, select Settings →... -
Page 18: Measurement Basics
PRO 241-2 / PRO 245-2 – Absolute manometers 7 Measurement basics The instrument internal pressure sensor detects the absolute pressure applied to the input. Caution! • Do not exceed the maximum overpressure specified, the sensor may be damaged. • The sensor is suitable for measurement in air and non-aggressive dry gases: do not use for measurement in corrosive gases. -
Page 19: Logging (Pro 245-2 Only)
PRO 241-2 / PRO 245-2 – Absolute manometers 9 Logging (PRO 245-2 only) The logging function stores in the memory of the instrument the detected measurements, along with the date and time of each sample. Data recording can be automatic, according to the set interval, or single (manual). -
Page 20: Viewing The Logged Data
PRO 241-2 / PRO 245-2 – Absolute manometers Multiselect mode: Operation is similar to standard mode, except that the check mark always remains visible next to all labels that are selected (in standard mode only the last label selected is marked with the check mark). -
Page 21: Serial Communication
PRO 241-2 / PRO 245-2 – Absolute manometers 10 Serial communication Serial commands can be sent to the instrument, to read the instrument information and the measurements. To send serial commands to the instrument, the USB mode menu item must be set to COM interface. -
Page 22: Battery Management
PRO 241-2 / PRO 245-2 – Absolute manometers 11 Battery management If the external power supply is not connected, the battery symbol on the display indicates the battery charge level. If the battery charge is insufficient to ensure a correct measurement, the instrument turns off. -
Page 23: Maintenance
PRO 241-2 / PRO 245-2 – Absolute manometers 12 Maintenance It is recommended to perform a calibration check of the instrument annually at accredited la- boratories. 12.1 Cleaning Do not use aggressive cleaning agents or incompatible with the materials indicated in the technical specifications. -
Page 24: Technical Specifications
PRO 241-2 / PRO 245-2 – Absolute manometers 13 Technical specifications Measurement specifications Measuring range 0…1700.0 hPa Resolution 0.1 hPa Accuracy ±2 hPa tip. @ T=5…30 °C ±1.25 %FSS Measurement rate 4 meas./s ±3000 hPa ±3000 hPa Compatible media Air and non-aggressive dry gases... - Page 25 PRO 241-2 / PRO 245-2 – Absolute manometers Storage temperature -25…65 °C (without batteries) Protection degree IP 67 (except pressure inputs) IK 06 Dimensions 170 x 80 x 38 mm Weight 345 g approx. Housing material ABS, TPE (side protection), Polyester (front panel)
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Page 26: Accessories
PRO 241-2 / PRO 245-2 – Absolute manometers 14 Accessories Spare and optional pressure ports: GDZ-UT Universal barbed pressure port for 4 and 6 mm inner diameter hose. Art. No. 479260 Spare part – Included in the scope of supply... - Page 27 Senseca Germany GmbH Hans-Sachs-Strasse 26 93128 Regenstauf GERMANY info@senseca.com...
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