BC Biomedical DPM-2350 User Manual

HIGH PRECISION / RESOLUTION

DIFFERENTIAL

DIGITAL PRESSURE METERS

DPM-2350 SERIES

USER MANUAL

BC BIOMEDICAL

DPM-2350 SERIES

TABLE OF CONTENTS

WARNINGS, CAUTIONS, NOTICES ............................................................................. ii

DESCRIPTION .............................................................................................................. 1

LAYOUT ......................................................................................................................... 5

SCREENS ...................................................................................................................... 6

KEYS ............................................................................................................................ 11

OPTIONS ..................................................................................................................... 13

COMMUNICATIONS .................................................................................................... 14

MANUAL REVISIONS .................................................................................................. 18

LIMITED WARRANTY ................................................................................................. 18

SPECIFICATIONS ....................................................................................................... 19

NOTES ......................................................................................................................... 22

i

WARNING - USERS

The DPM-2350 is for use by skilled technical

personnel only.

WARNING - USE

The DPM-2350 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.

WARNING - CONNECTIONS

All connections to patients must be removed

before connecting the DUT to the DPM-2350. A

serious hazard may occur if the patient is

connected when testing with the DPM-2350.

CAUTION - SERVICE

The DPM-2350 is intended to be serviced only by

authorized service personnel. Troubleshooting

and service procedures should only be

performed by qualified technical personnel.

CAUTION - INSPECTION

The DPM-2350 Series Meters should be inspected

before each use for wear and the Meter should

be serviced if any parts are in question.

CAUTION - MODIFICATIONS

The DPM-2350 is intended for use within the

published specifications. Any application

beyond these specifications or any unauthorized

user modifications may result in hazards or

improper operation.

ii

CAUTION - LIQUIDS

Do not submerge or spill liquids on the DPM-

2350. Do not operate the DPM-2350 if it may have
been exposed to fluid.

CAUTION - ENVIRONMENT

Exposure to environmental conditions outside

the specifications can adversely affect the

performance and accuracy of the DPM-2350. If

the unit is outside the Operating Specifications,

allow it to acclimate to specified conditions for at

least 30 minutes before attempting to operate it.

CAUTION - CLEANING

Do not immerse. The Meter should be cleaned by

wiping gently with a damp, lint-free cloth.

A mild detergent can be used if desired.

CAUTION – MEDIA COMPATIBILITY

The DPM-2350 is intended to be used with only

non-corrosive, non-ionic, or otherwise pure

fluids and/or gases that are compatible with

sensor materials including glass, silicon,

ceramic, epoxy, RTV, gold, aluminum and nickel.

CAUTION – LO PRESSURE PORT

LIQUIDS INCOMPATIBILITY

The Lo port of the DPM-2350 is not intended for

liquids, use only dry gases.

iii

NOTICE – CE

The DPM-2350 Series Meters bear the mark

Based on the following testing standards:

ELECTROMAGNETIC COMPATIBILITY DIRECTIVE

EMC – Directive 89/336/EEC as amended by 92/31/EEC and 93/68/EEC

EN 61326-1:1997 + A1:1998 + A2:2001 + A3:2003

“Electrical equipment for measurement, control and

laboratory use – EMC requirements”

This equipment has been type tested by an independent, accredited testing laboratory

and compliance was demonstrated to the above standard to the extent applicable.

EMISSIONS

Radiated and Line Conducted Emissions

EN 61000-3-2:2000 Harmonic Current Emissions
EN 61000-3-3:1995 + A1:2001 Voltage Fluctuation and Flicker

IMMUNITY– CLASS C

EN 61000-4-2:1995 + A1:1998 + A2:2001 Electrostatic Discharge
EN 61000-4-3:2002 Radiated Electric Field Immunity
EN 61000-4-4:1995 + A1:2001 + A2:2001 Electrical Fast Transients / Bursts
EN 61000-4-5:1995 + A1:2001 Surge Voltage
EN 61000-4-6:1996 + A1:2000 Conducted Disturbance
EN 61000-4-11:1994 + A1:2001 Voltage Dips and Short Interrupts

LOW VOLTAGE DIRECTIVE

EC – Directive 73/23/EC

EN 61010-1:2001

“Safety requirements for electrical equipment for measurement, control, and

laboratory use – General requirements”

This equipment has been type tested and compliance was demonstrated

to the above standard to the extent applicable.

iv

NOTICE – SYMBOLS

Symbol

Description

Center Negative

NOTICE – ABBREVIATIONS

ANSI

American National Standards Institute

ASCII

American Standard Code for Information
Interchange

BCD

Binary Coded Decimal

C

Celsius

cmH20

centimeters of water

°

degree(s)

DUT

Device Under Test

DC

Direct Current

Euro

European

F

Fahrenheit

FS

Full Scale

inHg

inches of mercury

inH20

inches of water

kg

kilogram(s)

kg/cm2

kilogram(s) per centimeter squared

kHz

kilohertz

kPa

kilopascal(s)

Max

Maximum

µA

microampere(s)

mA

milliampere(s)

mBar

milliBar(s)

mm

millimeter(s)

mmHg

millimeter(s) of mercury

Min

Minimum

NEDA

National Electronic Distributors Association

Lbs

pounds

PSI

pounds per square inch

Pres

Pressure

RH

Relative Humidity

RTD

Resistive Thermal Device

s

second(s)

Temp

Temperature

USA

United States of America

V

Volt(s)

VDC

Volt(s) Direct Current

v

NOTICE – DISCLAIMER

BC GROUP INTERNATIONAL, INC. RESERVES THE RIGHT TO
MAKE CHANGES TO ITS PRODUCTS OR SPECIFICATIONS AT
ANY TIME, WITHOUT NOTICE, IN ORDER TO IMPROVE THE
DESIGN OR PERFORMANCE AND TO SUPPLY THE BEST
POSSIBLE PRODUCT. THE INFORMATION IN THIS MANUAL HAS
BEEN CAREFULLY CHECKED AND IS BELIEVED TO BE
ACCURATE. HOWEVER, NO RESPONSIBILITY IS ASSUMED FOR
INACCURACIES.

NOTICE – CONTACT INFORMATION

BC BIOMEDICAL
BC GROUP INTERNATIONAL, INC.
3081 ELM POINT INDUSTRIAL DR.

SAINT CHARLES, MO 63301

USA

1-800-242-8428
1-314-638-3800

www.bcgroupintl.com

[e-mail]

NOTICE – DISCLAIMER

BC GROUP INTERNATIONAL, INC. WILL NOT BE RESPONSIBLE
FOR ANY INJURIES SUSTAINED DUE TO UNAUTHORIZED
EQUIPMENT MODIFICATIONS OR APPLICATION OF EQUIPMENT
OUTSIDE OF THE PUBLISHED INTENDED USE AND
SPECIFICATIONS.

DPM-2350 Series User Manual Copyright © 2012

www.bcgroupintl.com Made in the USA

06/12 Rev 05

vi

BC BIOMEDICAL

DPM-2350 SERIES

DIGITAL PRESSURE METERS

The Model DPM-2350 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. Available
optional features include a RS-232 port for remote control and data collection, a DC analog
output option, and an optional temperature sensor input (either YSI 700 Series or 100 Ω
RTD Probe). The following are highlights of the main features:

DPM-2351 (Basic Features):

GRAPHICAL LCD DISPLAY WITH CURSOR SELECTION OF OPTIONS AND

SETUP OF PARAMETERS
± 0.05% FS PRESSURE ACCURACY
DIGITAL CALIBRATION AND ZERO OFFSET ADJUSTMENT – NO POTS TO

TURN
24 BIT MEASUREMENT
PROGRAMMABLE DIGITAL FILTER
13 ENGINEERING UNITS:

PSI
inH2O @ 4 °C
inH2O @ 20 °C
inH2O @ 60 °F
cmH2O @ 20 °C
inHg @ 0 °C

inHg @ 20 °C
SELECTABLE DISPLAY OPTIONS AND DIGIT SIZES
BATTERY LIFE DISPLAY (0 to 100%)
SOFTWARE-ADJUSTABLE DISPLAY CONTRAST
MAX and MIN PRESSURE VALUE CAPTURE AND STORAGE

DPM-2352 MODEL ADDS:

RS-232 SERIAL COMMUNICATIONS

ANALOG OUTPUT OPTION (OPTION DC) ADDS:

OPTION DC - DC ANALOG OUTPUT (REFRESH RATE DEPENDENT

UPON DIGITAL FILTER SETTING)
BNC OUTPUT
± 0.1% FS ACCURACY

mmHg @ 0 °C
mmHg @ 20 °C
kg/cm2
kPa
mBar
Bar

1

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

OPTIONAL ACCESSORIES:

BC20-21100 BATTERY ELIMINATOR (USA Version)
BC20-21101 BATTERY ELIMINATOR (Euro Version)
BC20-41337 RS-232 COMMUNICATIONS CABLE (7PIN MINI-DIN

TO DB-9F)
BC20-41339 USB COMMUNICATIONS ADAPTER (DB-9M TO

USB-A) FOR USE WITH BC20-41337
BC20-30106 SOFT-SIDED CARRYING CASE
BC20-01005 UNIVERSAL MANOMETER (PRESSURE) ADAPTER KIT
BC20-01006 YSI 700 TEMPERATURE PROBE
BC20-01008 RTD (100 Ω) TEMPERATURE PROBE

2

DPM

235X

XX N XX

XX

Options
DC = DC (Direct Current) Analog Output
FC = Female Quick-Disconnect Coupler
MC = Male Quick-Disconnect Coupler

Temperature Sensor
N = Not Applicable
Y7 = YSI 700
R1 = 100 Ω RTD

Pressure Range
100 = Max 100 PSI (Quick-Disconnect)
75 = Max 75 PSI (Quick-Disconnect)
10 = Max 10 PSI (Luer)
5 = Max 5 PSI (Luer)
.3 = Max 0.3 PSI (Luer)

Model
2351 = Basic Differential Model
2352 = Adds RS232

MODEL INFORMATION

Use the following model configuration guide to construct or decode a DPM235X series
differential Digital Pressure Meter model number:

NOTE: User must include the –FC or –MC specifier for 100 PSI and 75 PSI Pressure
Ranges when ordering.

3

PRESSURE RANGES BY SENSOR RANGE

PRESSURE

UNITS

PRESSURE SENSOR RANGE

100 PSI

75 PSI

10 PSI

5 PSI

0.3 PSI

PSI

-13.500 to

100.000

-13.500 to

75.000

-10.0000 to

10.0000

-5.0000 to

5.0000

-.30000 to
.30000

mmHg @ 0° C

-698.2 to

5171.5

-698.2 to

3878.6

-517.15 to

517.15

-258.57 to

258.57

-15.514 to

15.514

mmHg @ 20° C

-700.6 to

5190.3

-700.6 to

3892.7

-519.00 to

519.03

-259.51 to

259.51

-15.571 to

15.571

inHg @ 0° C

-27.486 to

203.602

-27.486 to

152.702

-20.3602 to

20.3602

-10.1801 to

10.1801

-.61081 to
.61081

inHg @ 20° C

-27.586 to

204.342

-27.586 to

153.256

-20.4342 to

20.4342

-10.2171 to

10.2171

-.61303 to
.61303

cmH2O @ 20° C

-951.8 to

7043.2

-951.8 to

5282.4

-704.32 to

704.32

-352.16 to

352.16

-21.129 to

21.129

inH2O @ 4° C

-373.6 to

2768.1

-373.6 to

2076.1

-276.81 to

276.81

-138.40 to

138.40

-8.304 to

8.304

inH2O @ 20° C

-374.3 to

2772.9

-374.3 to

2079.7

-277.29 to

277.29

-138.64 to

138.64

-8.319 to

8.319

inH2O @ 60° F

-374.1 to

2770.8

-374.1 to

2078.1

-277.08 to

277.08

-138.54 to

138.54

-8.312 to

8.312

kg/cm2

-.9491 to

7.0306

-.9491 to

5.2730

-.70307 to
.70307

-.35153 to
.35153

-.021092 to

0.21092

kPa

-93.08 to

689.48

-93.08 to

517.11

-68.948 to

68.948

-34.473 to

34.473

-2.0684 to

2.0684

mBar

-930.8 to

6894.8

-930.8 to

5171.1

-689.48 to

689.48

-344.74 to

344.74

-20.684 to

20.684

Bar

-.9308 to

6.8948

-.9308 to

5.1711

-.68948 to
.68948

-.34474 to
.34474

-.020684 to
.020684

4

LAYOUT

Temperature:

¼” Phone Jack

(Optional)

RS-232:
7 pin Mini-Din
(Optional)

Power:

2.1 mm Jack
(Optional Battery
Eliminator)

6 Light Touch Keys for
Selecting Parameters and
Settings:
POWER for Turning Unit On
and Off
UP and DOWN Arrows for
Scrolling Through Selected
Options. When No Options
are Selected, for Changing
Display Screen
SELECT for Choosing
Setting or Parameter to
Change
SETUP/RETURN for
Entering and Exiting Setup
Menu
HOLD/RESET for Freezing
the Unit at its Current Setting
and for Clearing the Min/Max
Value in Capture Register

Analog Output:
BNC (Optional)

Pressure Port HI:
Female (-FC) Quick­Disconnect pictured

NOTE: Coupler type
depends on sensor
and options, see
Model Information for
details.

Pressure Port LO:
Female (-FC) Quick­Disconnect pictured

NOTE: Coupler type
depends on sensor
and options, see
Model Information for
details.

This section looks at the layout of the DPM-2350 and gives descriptions of the elements
that are present.

5

Pressure
Display with Min/Max
Option selected

Temperature Display
with Min/Max Option
selected

Combined Screen showing
both Pressure &
Temperature

Input Identification Screen
Note: Sensor limits are
displayed based on
selected range.

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 .

6

Pressure Units (Differential)

PSI

mmHg @ 0 °C

inH2O @ 4 °C

mmHg @ 20 °C

inH2O @ 20 °C

kg/cm2

inH2O @ 60 °F

kPa

cmH2O @ 20 °C

mBar

inHg @ 0 °C

Bar

inHg @ 20 °C

Typical display with

“Over Range”

message box.

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.

NOTE: If the measured pressure is outside of the range of the instrument, an OVER
RANGE or UNDER RANGE message box will be displayed.

7

Typical display with

“No Probe” message

box.
NOTE: YSI option only

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. For models with the YSI
option, the NO PROBE message box will be displayed when the unit detects an open
connection. For models with the RTD option, the OVER RANGE message box will also be
displayed with an open connection.

SYSTEM SETUP – The Setup Mode allows the user to adjust the configuration of the
meter. The Setup screen can be entered using the key. The parameters can be
changed by using to highlight the line and to toggle the available
options. The Setup screen can be exited using the key.

8

System Setup Configuration

Parameter

Description

Range

Display Min/Max

Selects whether the Min and Max values will be
displayed on the main screens
(except COMBINED).

yes/no

Analog Scale

Analog Output Scaling voltage. This is the
maximum analog output voltage. The output is
scaled to this voltage over the positive range of the
selected analog source.

1.0 to 4.0 Volts

Analog Source

Selects the source reading for the analog output

Pres or Temp

Contrast Adjust

Sets the contrast of the display screen.

0 to 20

Auto Off Timer

Determines the period of inactivity before the meter
is turned OFF. A timer is started when the meter is
turned ON and is reset each time a key is pressed.
When the timer reaches the value set in this
parameter, the power is automatically turned OFF.

(NOTE: Setting this parameter to 0 disables the

Auto Off timer. When running from line power, the
meter does not automatically shut off.)

0 to 30 Minutes

Battery Life

Displays current life of the battery.
At 10%, a warning screen will appear.

0 to 100%

(Read Only)

Beep Length

Sets audible beep duration.

0 to 15

Filter – Pres

Determines the number of samples that are
averaged in the digital filter. The software has a
Digital Filter that averages the readings to produce
a stable display.
(NOTE: Increasing this setting will cause a more
stable display. However, it will also cause a slower
response to small changes. The best setting is the
smallest number that provides a stable display.)

0 to 10 Seconds

Filter – Temp

RTD Type

(OPTION R1)

Sets the Temperature Coefficient (alpha) to match
that of the RTD probe.

0.00385/°C or

0.00392/°C

Software

Displays current software program.

(Read Only)

The following is a breakdown of the parameters available in the configuration of the unit
and their available options:

9

Typical display with
“Low Battery” message
box.

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
the process. The “ZEROING…” message will flash while the scale is being zeroed.
When the zeroing instructions are displayed again, the process is complete.

LOW BATTERY – When the battery life reaches 10 percent, the LOW BATTERY message
box will be displayed.

NOTE: A battery eliminator receptacle is provided so that the unit can be powered by the
optional 9 VDC Battery Eliminator, enabling continuous operation.

NOTE: The unit is shipped with a Red Battery Lock-Out plug installed into the line power
receptacle as shown below. Its purpose is to prevent the unit from accidentally being
turned on during handling and transport, subsequently depleting the battery. This plug
must be removed before any use!

10

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.
In the SELECT MODE, if a parameter has been highlighted, these keys will scroll through
the available settings.

– On any screen, there are a number of parameters that may be selected and
changed. This key sequences the cursor (Highlight) through those parameters.

– This key is used to Hold (freeze) and Reset (unfreeze) any of the input displays.
Depressing this key will hold the currently displayed Pressure or Temperature reading until
reset. Each input can be held independently.

When active, the word “HOLD” is in the display. Depressing this key on a screen that is

held will reset that input and remove the word “HOLD” from the display.

NOTE: In the composite screen, the hold feature requires that the specific input be
selected using before is used.

11

– 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.

12

OPTIONS

ANALOG OUTPUT – The unit may be ordered with a DC Analog Output Option. This

option provides a filtered analog output that is representative of the displayed pressure
or temperature, 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). The output is scaled to match the 0 to FS range of the
selected source parameter over a variable internally generated reference voltage. This
reference voltage is selectable from 1.0 to 4.0 VDC in 0.1 V increments through the
Setup Menu. Filtering is dependent on the Digital Filter Setting (See System Setup
section for more information).

TEMPERATURE – The unit may be ordered with the Temperature Option. This option
allows the unit to read an external temperature sensor/transducer and display
temperatures between -20 to 100 °C (-4.0 to 212.0 °F). The temperature probe interface is
a standard ¼” Phone Jack.

YSI 700 Temperature Input (Y7) – This option allows the unit to display

temperature measured by a YSI 700 series standard temperature probe.

RTD Temperature Input (R1) – This option allows the unit to display

temperature measured by a standard 100 Ω RTD. This option supports
selectable temperature coefficients (alpha) to match that of the sensor or probe:

0.00385/°C (most common)

0.00392/°C

13

R - READ

The READ command allows the user to read system settings and
data.

Usage:

R(Location)(CR)
Where:
R - READ command
Location - contains two digits indicating the data location to be
read
CR - Carriage Return

Example:

Data Sent Data Returned Meaning
R08<CR> R08<CR><LF> Echo of Command Sent

10.25 mmHg<CR><LF> 10.25 mmHg measured

W - WRITE

The WRITE command allows the user to update the system settings.

Usage:

W(Location – 2 digits)(Data – 5 digits)(CR)

Where:

W - WRITE command

Location - contains two digits indicating the data location to be
written
Data – five-digit field containing the data to be written at the
Location set above
CR - Carriage Return

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. All commands sent to the unit should be terminated with a “Carriage Return”

character (<CR> or in hexadecimal, 0x0D). All commands and responses are echoed by

the unit for confirmation of communication, and are terminated with “Carriage Return” and
“Line Feed” characters (<CR><LF> or in hexadecimal, 0x0D0A). If an invalid command is

received, the unit will respond with the characters “??”.

The following section describes the protocol used by the meter in detail:

14

Examples:

Data Sent Data Returned Meaning
W064<CR> W064<CR><LF> Echo of Command Sent
(Set Pressure units to “inH2O”)
W0600004<CR> W0600004<CR><LF> Echo of Command Sent
(Set Pressure units to “inH2O”)

W05100<CR> W05100<CR><LF> Echo of Command Sent
??<CR><LF> Invalid Command Response
(Location 05 is Read Only)

U - UPLOAD

The UPLOAD command allows the user to read all of the selected
device data from locations 1 through 16 with a single command. The
data returned will be formatted as a single block per location
separated by a carriage return, line feed character sequence (CRLF
– equivalent to hexadecimal 0x0D0A). See the table below for details
on the data structure.

Usage:

U(CR)

Where:
U – UPLOAD command

CR - Carriage Return

Q - QUICKSEND

QUICKSEND is a feature that allows the user to receive an
automatic update of all of the meter data without any further user
interaction. When the QUICKSEND command is received, the
feature is turned ON and the meter will automatically send all of the
device data every half second. The Quicksend feature is toggled ON
and OFF with the QUICKSEND command. See the table below for
details on the data structure.

Usage:

Q(CR)
Where:
Q – QUICKSEND command
CR - Carriage Return

V - VERSION

The VERSION command allows the user to read the Software Version
that the unit is currently running.

Usage:

V(CR)
Where:
V – VERSION command
CR - Carriage Return

15

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.

Usage:

X

This command does not require a carriage return, nor will it
acknowledge with a carriage return. However, it will echo an ‘X’
character to indicate that the CANCEL command has been received.

NOTE: The VERSION or CANCEL commands may also be utilized as
an acknowledgement of the meter being on line.

16

DATA LOCATIONS

LOCATION

ACCESS

DESCRIPTION

RANGE

01

READ

BATTERY LIFE REMAINING

0 to 100%

02

READ/WRITE

CONTRAST

0 to 20

03

READ/WRITE

AUTO POWER OFF

0 to 30 (seconds)

04

READ

MODEL

RESERVED

05

READ

PRESSURE 1 TYPE

1

100 PSI Max

2

75 PSI Max

3

10 PSI max

4

5 PSI max

5

0.3 PSI max

06

READ/WRITE

PRESSURE 1

UNITS

0

PSI

1

mmHg @ 0 °C

2

mmHg @ 20 °C

3

inHg @ 0 °C

4

inHg @ 20 °C

5

cmH2O @ 20°C

6

inH2O @ 4 °C

7

inH2O @ 20 °C

8

inH2O @ 60 °F

9

kg/cm2

10

kPa

11

mBar

12

Bar

07

READ/WRITE

PRESSURE 1 FILTER

0-60 (seconds)

08

READ

PRESSURE 1

See Note 1

09

READ/WRITE

PRESSURE 1 MAX

See Note 1, 3

10

READ/WRITE

PRESSURE 1 MIN

See Note 1, 3

DATA LOCATIONS (Temp option only)

LOCATION

ACCESS

DESCRIPTION

RANGE

17

READ

TEMPERATURE SENSOR TYPE

0

Not Applicable

1

YSI 700

2

RTD 100

18

READ/WRITE

TEMPERATURE UNITS

0

°C 1 °F

19

READ/WRITE

TEMPERATURE FILTER

0-60

20

READ

TEMPERATURE

See Note 2

21

READ/WRITE

TEMPERATURE MAX

See Note 2, 3

22

READ/WRITE

TEMPERATURE MIN

See Note 2, 3

NOTES

1. Pressure readings are returned in the currently set Pressure Units parameter in Location 6. This
may be changed via the WRITE command or manually via the keys.

2. Temperature readings are returned in the currently set Temperature Units parameter in Location

18. This may be changed via the WRITE command or manually via the keys.

3. MIN/MAX readings may be reset at any time via a WRITE command to either MIN/MAX location,
or manually via the keys.

17

MANUAL REVISIONS

LIMITED WARRANTY

WARRANTY: BC GROUP INTERNATIONAL, INC. WARRANTS ITS NEW PRODUCTS TO BE FREE

FROM DEFECTS IN MATERIALS AND WORKMANSHIP UNDER THE SERVICE FOR WHICH THEY
ARE INTENDED. THIS WARRANTY IS EFFECTIVE FOR TWELVE MONTHS FROM THE DATE OF
SHIPMENT.

EXCLUSIONS: THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY EXPRESSED OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE.

BC GROUP INTERNATIONAL, INC. IS NOT LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES.

NO PERSON OTHER THAN AN OFFICER IS AUTHORIZED TO GIVE ANY OTHER WARRANTY OR
ASSUME ANY LIABILITY.

REMEDIES: THE PURCHASER'S SOLE AND EXCLUSIVE REMEDY SHALL BE: (1) THE REPAIR OR
REPLACEMENT OF DEFECTIVE PARTS OR PRODUCTS, WITHOUT CHARGE. (2) AT THE OPTION
OF BC GROUP INTERNATIONAL, INC., THE REFUND OF THE PURCHASE PRICE.

Revision # Program # Revisions Made

Rev 01 DT7321CA Origination
Rev 02 DT7321CB Min/Max made standard, Quick-Disconnect added
Rev 03 DT7321CB MC and FC option for Quick-Disconnect added
Rev 04 DT7321CG Misc. Updates
Rev 05 DT7321CH Format Updated, Specifications Updated, Misc.

Updates

P:\MANUALS\BCGroup\…\DPM-2000\DPM-2350\DPM2350_UM_Rev05.doc

18

PRESSURE MEASUREMENT

RANGE

100 PSI SENSOR

-13.5 TO 100.0 PSI

75 PSI SENSOR

-13.5 TO 75.0 PSI

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

RESOLUTION

100 PSI SENSOR

0.001 PSI

75 PSI SENSOR

0.001 PSI

10 PSI SENSOR

0.0001 PSI

5 PSI SENSOR

0.0001 PSI

0.3 PSI SENSOR

0.00001 PSI

ACCURACY

± 0.05% FS

DIGITAL FILTER

0 to 10 seconds, Selectable

COMPATIBLE

MEDIA

Only non-corrosive, non-ionic, or otherwise pure fluids and/or

gases that are compatible with sensor materials including

glass, silicon, ceramic, epoxy, RTV, gold, aluminum and

nickel.

NOTE: FLUIDS/LIQUIDS ONLY TO BE USED ON HI PORT

CONNECTIONS

100 PSI SENSOR

Quick-Disconnect Coupler:

Option FC – Female

Option MC – Male

75 PSI SENSOR

Quick-Disconnect Coupler:

Option FC – Female

Option MC – Male

10 PSI SENSOR

Male Luer Coupler

5 PSI SENSOR

Male Luer Coupler

0.3 PSI SENSOR

Male Luer Coupler

SPECIFICATIONS

19

TEMPERATURE MEASUREMENT (OPTIONAL)

RANGE

-20.0 to 100.0 °C (-4.0 to 212.0 °F)

RESOLUTION

0.1 °C (0.1 °F)

ACCURACY

± 0.5% FS

CONNECTIONS

¼” Phone Jack for use with ¼” Phone Plug terminated

temperature cables or probes.

TRANSDUCER

COMPATIBILITY

OPTION Y7

YSI 700 Transducers

OPTION RTD

100 Ω RTD

Supports 0.00385/°C and 0.00392/°C

temperature coefficient (alpha) sensors

ANALOG OUTPUT (OPTIONAL)

RANGE

1.0 to 4.0 VDC/FS, Selectable

ACCURACY

± 0.1% FS

RATE

Output dependent on

Digital Filter setting

CONNECTIONS

Male BNC Connector

PHYSICAL & ENVIRONMENTAL

DISPLAY

128 X 64 Pixels Non-Backlit Graphical LCD

CONSTRUCTION

ENCLOSURE

ABS Plastic

OVERLAY

Back-printed Lexan

SIZE

7.69 x 3.97 x 1.80 Inches

(195.3 x 100.8 x 45.7 mm)

WEIGHT

< 1 Lbs (0.45 kg)

OPERATING

RANGE

15 to 30 °C

(59 to 86 °F)

STORAGE

RANGE

-40 to 60 °C

(-40 to 140 °F)

20

ELECTRICAL & MISC.

BATTERY

9V Alkaline Battery

(ANSI/NEDA 1604A or equivalent)

BATTERY

ELIMINATOR

9 VDC, 200 mA

BC20-21100 (USA Version)

BC20-21101 (Euro Version)

POWER

CONSUMPTION

ON

< 35 mA

OFF

< 40 µA

BATTERY LIFE

CONTINUOUS

80 hours

OFF

1 year

RS-232

COMMUNICATIONS

BAUD

115200

DATA BITS

8

START BITS

1

STOP BITS

1

PARITY

None

HANDSHAKING

None

CONNECTIONS

Seven (7) pin Mini-DIN Receptacle

Pinout:

21

NOTES

22

BC GROUP INTERNATIONAL, INC.

3081 ELM POINT INDUSTRIAL DRIVE

ST. CHARLES, MO 63301

USA

1-800-242-8428
1-314-638-3800

www.bcgroupintl.com

[e-mail]

DPM-2350 Series User Manual

06/12 – Rev 05

Copyright © 2012

Made in the USA