BC Biomedical DPM-2250 Series User Manual

High precision differential digital pressure meters

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HIGH PRECISION

DIFFERENTIAL

DIGITAL PRESSURE METERS

DPM-2250 SERIES

USER MANUAL

Table of Contents

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Summary of Contents for BC Biomedical DPM-2250 Series

Page 1 HIGH PRECISION DIFFERENTIAL DIGITAL PRESSURE METERS DPM-2250 SERIES USER MANUAL...
Page 3: Table Of Contents
BC BIOMEDICAL DPM-2250 SERIES TABLE OF CONTENTS WARNINGS, CAUTIONS, NOTICES ................ii DESCRIPTION ......................1 LAYOUT ........................5 SCREENS ........................6 KEYS ........................... 11 TESTING LIQUID PRESSURE ................... 13 OPTIONS ........................14 COMMUNICATIONS ....................15 MANUAL REVISIONS ....................19 LIMITED WARRANTY ....................19 SPECIFICATIONS .....................
Page 4: Warning - Connections
WARNING - USERS The DPM-2250 is for use by skilled technical personnel only. WARNING - USE The DPM-2250 is intended for testing only and should never be used in diagnostics, treatment or any other capacity where it would come in contact with a patient.
Page 5 CAUTION - CLEANING Do not immerse. The DPM-2250 should be cleaned by wiping gently with a damp, lint-free cloth. A mild detergent can be used if desired. CAUTION - LIQUIDS Do not submerge or spill liquids on the DPM- 2250. Do not operate the DPM-2250 if it may have been exposed to fluid.
Page 7: Notice - Symbols
NOTICE – SYMBOLS Symbol Description Center Negative NOTICE – ABBREVIATIONS ANSI American National Standards Institute American Standard Code for Information ASCII Interchange Binary Coded Decimal Celsius centimeters of water ° degree(s) Device Under Test Direct Current Euro European Fahrenheit Full Scale inHg inches of mercury inches of water...
Page 8: Notice - Disclaimer
ACCURATE. HOWEVER, NO RESPONSIBILITY IS ASSUMED FOR INACCURACIES. NOTICE – CONTACT INFORMATION BC BIOMEDICAL BC GROUP INTERNATIONAL, INC. 3081 ELM POINT INDUSTRIAL DR. ST. CHARLES, MO 63301 1-800-242-8428 1-314-638-3800 www.bcgroupintl.com sales@bcgroupintl.com DPM-2250 Series User Manual Copyright © 2023 www.bcgroupintl.com Made in the USA 11/23 Rev 14...
Page 9: Description
DPM-2250 SERIES DIGITAL PRESSURE METERS The Model DPM-2250 Series is a family of microprocessor-based, high-precision Differential Pressure Meters, which are intended for use in the evaluation and servicing of a wide variety of medical, commercial, and industrial applications. These meters measure compatible differential gas and liquid pressures in various engineering units.
Page 10 TEMPERATURE OPTION ADDS: • OPTION Y7 - YSI 700 TEMPERATURE PROBE INTERFACE • OPTION R1 - 100 Ω RTD TEMPERATURE PROBE INTERFACE • -20.0 TO 100.0 °C (-4.0 TO 212.0 °F) TEMPERATURE RANGE • ± 0.5% FS ACCURACY • MAX and MIN TEMPERATURE VALUE CAPTURE AND STORAGE STANDARD ACCESSORIES: •...
Page 11: Model Information
MODEL INFORMATION Use the following model configuration guide to construct or decode a DPM225X series differential Digital Pressure Meter model number: 225X Options Blank = Not Applicable = DC (Direct Current) Analog Output = High Frequency DC Analog Output Temperature Sensor Option = Not Applicable = YSI 700 = 100Ω...
Page 12 PRESSURE RANGES BY SENSOR RANGE PRESSURE SENSOR RANGE PRESSURE UNITS 100 PSI 75 PSI 10 PSI 5 PSI 0.3 PSI -13.50 to -13.50 to -10.000 to -5.000 to -0.3000 to 100.00 75.00 10.000 5.000 0.3000 -698 to -698 to -517.2 to -258.6 to -15.51 to mmHg @ 0°...
Page 13: Layout
LAYOUT This section looks at the layout of the DPM-2250 and gives descriptions of the elements that are present. Analog Output: Temperature: BNC (Optional) ¼” Phone Jack (Optional) Pressure Port LO Male Luer Lock Pressure Port HI: Coupler Male Luer Lock Coupler 6 Light Touch Keys for Selecting Parameters and...
Page 14: Screens
SCREENS MAIN SCREENS – There can be up to four main screens, depending on the model. They are PRESSURE, TEMPERATURE, COMBINED and INPUTS. The available screens can be toggled through using Pressure Display with Min/Max Option selected Temperature Display with Min/Max Option selected Combined Screen showing: Pressure &...
Page 15 PRESSURE SCALE – The pressure scale is indicated by the units displayed under the reading. The scale can be changed by using to highlight the unit line and to toggle between available pressure units as listed below. Pressure Units (Differential) mmHg @ 0 °C mmHg @ 20 °C O @ 4 °C...
Page 16 TEMPERATURE SCALE – The temperature scale is indicated by the units displayed under the reading. The scale can be changed by using to highlight the unit line and to toggle the temperature units between Degrees Celsius (°C) and Fahrenheit (°F). NOTE: If the measured temperature is outside of the range of the instrument, an OVER RANGE or UNDER RANGE message box will be displayed.
Page 17 The following is a breakdown of the parameters available in the configuration of the unit and their available options: System Setup Configuration Parameter Description Range Selects whether the Min and Max values will be Display Min/Max yes/no displayed on the main screens (except COMBINED).
Page 18 ZEROING PRESSURE SCALES – When there is no pressure applied to either port, the display should read “0.” It may be necessary to zero the pressure scales to remove any errors due to ambient conditions. This is done by pressing the key until the zeroing instructions are displayed, then pressing simultaneously to begin...
Page 19: Keys
KEYS Six tactile-touch keys are provided for system operation: – This key turns the unit off and on. The unit will return to the main screen that was active when it was turned off. – In the DISPLAY MODE, these keys toggle the display through the available main screens.
Page 20 – This key toggles the unit into and out of the Setup Mode. Depressing this key will enter the Setup screen where the configuration can be viewed and adjusted. Depressing the key again will exit the Setup Mode and return to the previously viewed main screen. This will also save any changes to the internal EEPROM memory so they will be retained even with the power turned off or battery removed.
Page 21: Testing Liquid Pressure
TESTING LIQUID PRESSURE Measuring pressure in liquid lines (such as during an occlusion test for infusion pumps) requires the use of a transducer protector to prevent fluids intruding into the digital pressure meter. Each DPM-2250 unit comes with the BC20-01012 Transducer Protector, Luer Kit. Failure to use a transducer protector during a liquid pressure test can result in the intrusion of fluid into the DPM which can cause damage to the digital pressure sensor.
Page 22: Options
OPTIONS ANALOG OUTPUT – The unit may be ordered with an Analog Output Option. This output can either be a Standard DC or a High Frequency DC and is provided via a BNC connector on the top of the unit. The source parameter for the analog output is selectable in the Setup Menu between Pressure (Pres) or Temperature (Temp).
Page 23: Communications
COMMUNICATIONS Since the meter does not handle a great deal of data, the RS-232 communications link has been optimized to allow the user, through very simple instructions, to control and request data from the meter. Refer to Specifications section for RS-232 Settings (Baud, etc.). Data transmitted/received is in standard ASCII format, and all numerical values are in BCD format.
Page 24 CR - Carriage Return Examples: Data Sent Data Returned Meaning W064<CR> W064<CR><LF> Echo of Command Sent (Set Pressure units to “inH O”) W0600004<CR> W0600004<CR><LF> Echo of Command Sent (Set Pressure units to “inH O”) W05100<CR> W05100<CR><LF> Echo of Command Sent ??<CR><LF>...
Page 25 CR - Carriage Return X - CANCEL The CANCEL command is simply a way to re-establish proper control, should a communications error occur or an incorrect command be transmitted. For the most part, an incorrect command will simply be ignored and the meter will return to listening for future commands. However, a prior command may be cancelled midstream by transmitting the CANCEL command anytime.
Page 26 DATA LOCATIONS LOCATION ACCESS DESCRIPTION RANGE READ BATTERY LIFE REMAINING 0 to 100% READ/WRITE CONTRAST 0 to 20 READ/WRITE AUTO POWER OFF 0 to 30 (seconds) READ MODEL RESERVED 100 PSI Max 75 PSI Max READ PRESSURE 1 TYPE 10 PSI max 5 PSI max 0.3 PSI max mmHg @ 0 °C...
Page 27: Manual Revisions
MANUAL REVISIONS Revision # Program # Revisions Made Rev 01 DT7328CA Origination Rev 02 DT7328CB Temperature Added Rev 03 DT7328CC DC Output Added Rev 04 DT7328CC Pictures Updated Rev 05 DT7328CD Misc. Edits Rev 06 DT7328CD Battery Eliminator Plug and Analog Output Info Added Rev 07 DT7328CD Analog Output Specifications Update...
Page 28: Specifications
SPECIFICATIONS PRESSURE MEASUREMENT 100 PSI SENSOR -13.5 TO 100.0 PSI 75 PSI SENSOR -13.5 TO 75.0 PSI RANGE 10 PSI SENSOR -10.0 TO 10.0 PSI 5 PSI SENSOR -5.0 TO 5.0 PSI 0.3 PSI SENSOR -0.3 TO 0.3 PSI 100 PSI SENSOR 0.01 PSI 75 PSI SENSOR 0.01 PSI...
Page 29 ANALOG OUTPUT (OPTIONAL) RANGE 1.0 to 4.0 VDC/FS, Selectable ACCURACY ± 0.1% FS Output dependent on OPTION DC Digital Filter setting RATE Output from 0 to 100 Hz OPTION HF (Note: Sampled at 10 kHz) CONNECTIONS Male BNC Connector PHYSICAL & ENVIRONMENTAL DISPLAY 128 X 64 Pixels Non-Backlit Graphical LCD ENCLOSURE...
Page 30 ELECTRICAL & MISC. (continued) BAUD 115200 DATA BITS START BITS STOP BITS PARITY None HANDSHAKING None Seven (7) pin Mini-DIN Receptacle RS-232 COMMUNICATIONS Pinout: CONNECTIONS...
Page 31: Notes
NOTES...
Page 32 NOTES...
Page 33 NOTES...
Page 34 NOTES...
Page 36 BC GROUP INTERNATIONAL, INC. 3081 ELM POINT INDUSTRIAL DRIVE ST. CHARLES, MO 63301 1-800-242-8428 1-314-638-3800 www.bcgroupintl.com sales@bcgroupintl.com DPM-2250 Series User Manual 11/23 – Rev 14 Copyright © 2023 Made in the USA...

This manual is also suitable for:

Dpm-2251 Dpm-2252