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Operating Instructions DPG 2400 Series

Digital Pressure Gauge

DPG 2400 Series

7.2.7 Pressure Units Codes and Conversions

Table 7.2.7 - Pressure Units Codes and Conversions

Code

Pressure Unit

PSI Conversion Factor

Counts

N/A

PSI

InHg 0C

2.03602

InHg 60F

2.041772

InH2O 4C

27.680672

InH2O 20C

27.729767

Bar

0.06894757

mBar

68.94757

cmH2O 4C

70.3089

mmHg 0C

51.71508

cmHg 0C

5.171508

kPa

6.894757

6894.757

kg/cm2

0.07030697

MSW 0C (@3.5% salinity)

0.6838528

hPa

68.94757

MPa

0.006894757

cmH2O 20C

70.4336

User

User Settable

Содержание DPG 2400

Страница 1: ...Operating Instructions Digital Pressure Gauge Digital Pressure Gauge DPG 2400 Series PN 0017460001R 07 2013 DPG 2400 ...

Страница 2: ...nvironment and or considerable damage mortal danger danger of injury will occur if the respective safety precautions are not taken Caution This Caution symbol indicates danger for the system and material if the respective safety precautions are not taken This Notice symbol does not indicate safety notices but information for a better understanding of the facts ...

Страница 3: ...ings and Caution Notices 7 3 Product Description 9 3 1 General Description 9 3 2 Display 9 3 3 Power Supply 9 3 4 Serial In Out Communications 9 4 Specifications 11 5 Installation 13 5 1 Unpacking the Instrument 13 5 2 Dimensions 14 5 3 Pressure Connections 15 5 4 Electrical Connections 16 5 5 Power On 16 6 Local Operation 17 6 1 Keypad 17 6 2 Standard Display 17 6 3 Menu Screens 18 6 3 1 Main Men...

Страница 4: ...sponse String Format 26 7 2 3 DPG 2400 Address 26 7 2 4 Wildcard Address Operator 26 7 2 5 Commands and Queries 27 7 2 6 User Programmable Pressure Units 29 7 2 7 Pressure Units Codes and Conversions 30 8 Calibration 31 8 1 Environment 31 8 2 Equipment 31 8 3 Pressure Standard 33 8 4 Calibration Medium 33 8 5 Calibration Process 33 8 5 1 Zero Adjustment 33 8 5 2 Span Adjustment 34 ...

Страница 5: ...of the product the cause and nature of a defect and the necessity or manner of repair Service repairs or disassembly of the product in any manner performed without specific factory permission voids this warranty MENSOR MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MANUAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Mensor shall not...

Страница 6: ... of business profits business interruption loss of business information and the like arising from or in connection with the delivery use or performance of the software program 1 4 Mensor Service Plus If you have problems and you don t find the answer in this manual contact Mensor at 1 800 984 4200 USA only or 1 512 396 4200 for personal assistance or at any of the contact addresses listed on the r...

Страница 7: ...ment is not designed for oxygen use Caution CAUTION Avoid excessive overpressure to the sensor Externally mounted relief valves to provide overpressure protection are available from Mensor as optional devices Caution CAUTION Use of a power supply other than the one provided by Mensor will invalidate the warranty CAUTION ESD PROTECTION REQUIRED The proper use of grounded work surfaces and personal ...

Страница 8: ...8 Operating Instructions DPG 2400 Series Digital Pressure Gauge DPG 2400 Series Notes ...

Страница 9: ...onal features include external dual differential relief valves externally mounted relief valves RS 485 communications 100 ft cable length recommended and a rack mount kit 3 2 Display Several different display screens are presented while operating the DPG 2400 Each screen is arranged into blocks of information generally organized into columns and rows These screens are each described in further det...

Страница 10: ...aud 8 data bits 1 stop bit and no parity The device address can be changed using a remote command When connecting several units in a multi drop configuration it is recommended that the cable length be limited to 100 ft Wiring requirements are provided in Section 5 4 Electrical Connections and a list of valid commands and responses is provided in Section 7 2 5 Commands and Queries ...

Страница 11: ...CSL Z540 1 1994 standards Mensor reserves the right to change specifications without notice Total Uncertainty Better than 0 03 FS for 180 days Calibration Interval 180 days Pressure Ranges 7 5 to 6000 psia 0 36 to 6000 psig Resolution 5 digits Overpressure Limit 1 5X Burst pressure Limit 3X up to 500 psig 2X greater than 500 psig Compensated Temperature Range 15 to 45ºC Storage Temperature Range 2...

Страница 12: ...ice Cannot guarantee accuracy on media other than gases Reference port Clean dry non corrosive gases Power Consumption 12 VDC 125A Pressure Interfaces 7 16 20 SAE Ref 10 24 1 8 and 1 4 FNPT adapters included 1 16 inch hose barb for reference port Warranty One year Options Relief valves for ranges 100 psi mounted externally Rack mount kit Pressure Units See Table 7 2 7 Pressure Units Codes and Conv...

Страница 13: ...ting each unit is inspected for appearance prior to leaving the factory Upon receipt please examine the transducer for shipping damage Report any apparent damage to the carrier immediately In addition to this manual you should have One DPG 2400 Digital Pressure Gauge Power adapter Any accessories ordered An envelope containing the Calibration Certificate ...

Страница 14: ...14 Operating Instructions DPG 2400 Series Digital Pressure Gauge DPG 2400 Series 5 2 Dimensions Figure 5 2 Case Outline Dimensions ...

Страница 15: ...is less than 20 psi and is a gauge or bi directional sensor there will also be a 1 16 inch hose barb fitting above the pressure port The barb fitting provides access to the reference port of the sensor Caution CAUTION Avoid excessive overpressure to the sensor Externally mounted relief valves to provide overpressure protection are available from Mensor as optional devices Figure 5 3 Rear view of D...

Страница 16: ...is 12 VDC and the outside is ground see Figure 5 4b 2 2 Host DB 9 3 3 5 5 DPG 2400 J1 SHLD GND GND TX RX TX RX Female Male Figure 5 4a RS 232 Hookup For RS 485 serial port operation connect the DPG 2400 to the host computer per Figure 5 4b 2 1 9 2 1 Host DB 9 3 3 5 5 9 DPG 2400 J1 RD B GND GND TD A RD B RD A TD B RD A TD B TD A Female Male Figure 5 4b RS 485 Hookup 5 5 Power On After the pressure ...

Страница 17: ...ng pressure unit Arrow Keys 4 The four arrow keys provide navigation in the menus They are also used to adjust the displayed pressure for calibration adjustment and adjustment of the programmable user unit The Enter Key The key is used as an enter key to select the highlighted menu choice or for single button null The Main Menu Key M The key brings up the main menu of the DPG 2400 Power Switch The...

Страница 18: ...ggles the peak indicator A Setup Peak On Peak Rst Null Off Cal Units Sensor A The current state of the peak indicator is highlighted If the menu item displays Peak Off the peak indicator is disabled If Peak Off is selected it will enable peak capture If the Sensor Setup menu is re entered the menu item will display Peak On to indicate that the peak capture function is enabled The peak indication s...

Страница 19: ... a null offset Single button null The null feature can also be accessed by pressing the enter key while at the standard display The null button will toggle nulling on or off The instrument will revert to the un nulled state if power is cycled 1 Peak and Null functions can be used simultaneously 2 Pressure units must not be changed when using the null feature Cal Displays the calibration password e...

Страница 20: ...o be adjusted the calibration to be reset to the factory defaults and the calibration password to be changed A Calibration Cal Zero Cal Span Change PW Reset Cal The items in the calibration menu perform the following functions when selected Cal Zero Displays the currently measured pressure Adjust the digits to the true pressure applied to the sensor and press the enter key to store the value For m...

Страница 21: ...re it The main menu is then displayed The password is set to 0000 at the factory When making a change write it down and save the number If the password is lost contact Mensor Reset Cal Displays a confirmation screen A Calibration Cal Zero Cal Span Change PW Reset Cal If the enter key is pressed the calibration is reset to the factory defaults and the main operation screen is displayed If any other...

Страница 22: ...s screen allows selection and entry of a special User unit The User unit has a configurable conversion factor that converts from PSI to the desired value To enter the conversion factor select Set User on the last units screen to display Set User Units A 1 00000e 1 Enter to Continue Use the left and right arrow keys to move the cursor under the digit to change and use the up and down arrow keys to ...

Страница 23: ...Operating Instructions DPG 2400 Series 23 Digital Pressure Gauge DPG 2400 Series 6 4 Menu Tree Figure 6 4 DPG 2400 Menu Tree ...

Страница 24: ...24 Operating Instructions DPG 2400 Series Digital Pressure Gauge DPG 2400 Series Notes ...

Страница 25: ...responses are in ASCII characters lower and upper case are inter preted the same Every command or query begins with the pound symbol The ques tion mark character is significant to the DPG 2400 All other punctuation characters are ignored Some commands require a password string A carriage return cr or linefeed lf must terminate each command or query The global address character is an asterisk It ca...

Страница 26: ...en communicating with the DPG 2400 the R character must be received before sending additional commands or queries In the event that an invalid command could be sent a timeout period of approximately one second should be used before sending the next command or query The full command word is shown in Table 7 2 5 Command Set in all capital letters Other conventions used to describe commands are shown...

Страница 27: ...rmination If the peak function is enabled the return string will contain three values The first value is the maximum pressure the second is the present pressure and the third is the minimum pressure An example of a return string with peak on 1 14 595 14 584 14 575 cr lf where 1 address 14 595 14 584 14 575 pressure readings and cr lf termination No A XA sp n cr lf R Sets address of DPG 2400 to 0 9...

Страница 28: ...R sp nnnnn Returns maximum pressure range in PSI No RST sp XRST sp cr lf R Resets peak values A space must be included after the RST command No SAVE XSAVE cr lf R Saves all data to memory No SC XSC cr lf X sp SC sp nnn nnnn Returns the span correction multiplier Yes SC XSC sp nnnnnn cr lf R Sets the span correction multiplier Yes SCPW XSCPW sp nnnn cr lf R Changes the password No T XT cr lf X sp T...

Страница 29: ... units to be displayed by sending a sequence of UT commands The syntax is as follows UT sp n sp n cr lf where the first n is a value from 0 to 7 and represents the units sequential position in the displayed list The second n represents the unit code from Table 7 2 7 If the first 0 unit in the sequence is assigned a value of 0 then the displayed units will default to all the available units from th...

Страница 30: ... Unit PSI Conversion Factor 0 Counts N A 1 PSI 0 2 InHg 0C 2 03602 3 InHg 60F 2 041772 4 InH2O 4C 27 680672 5 InH2O 20C 27 729767 14 Bar 0 06894757 15 mBar 68 94757 17 cmH2O 4C 70 3089 19 mmHg 0C 51 71508 20 cmHg 0C 5 171508 22 kPa 6 894757 23 Pa 6894 757 26 kg cm2 0 07030697 27 MSW 0C 3 5 salinity 0 6838528 34 hPa 68 94757 36 MPa 0 006894757 38 cmH2O 20C 70 4336 99 User User Settable ...

Страница 31: ...d within the specified calibration range In addition for maximum accuracy see that the DPG 2400 is at rest on a stable platform which is free of vibration and shock and oriented similar to its operating attitude 8 2 Equipment The following equipment is needed to calibrate a gauge transducer see Figure 8 2 1 A pressure source with a line pressure regulator to cover the full scale pressure range of ...

Страница 32: ...T METERING VALVE DIAPHRAGM TYPE VACUUM GAUGE VAC NOTE DISCONNECT WHEN VACUUM GAUGE RANGE IS EXCEEDED PRESSURE REFERENCE ATMOSPHERE SHUT OFF VALVE VOLUME CONTROLLER VENT LINE REGULATOR SHUT OFF VALVES VENT METERING VALVE PRESS REF PRESSURE STANDARD PRESSURE SUPPLY Setup for Gauge or Differential Pressure Setup for Absolute Pressure DPG 2400 PRESSURE GAUGE DPG 2400 PRESSURE GAUGE Computer optional C...

Страница 33: ...process described below is for local operation via the instrument key pad Connect the DPG 2400 sensor to be calibrated as shown in Figure 8 2 Calibration Setup When the Calibration function is selected from the sensor setup screen the password entry screen will be displayed Enter the 4 digit password and then press the enter key For more information on entering or changing the password see Section...

Страница 34: ... Apply a known pressure to the pressure port of the instrument to be calibrated equal to or slightly less than the range of the instrument The applied pressure must be greater than 50 of the span or span adjustments will not be accepted Adjust the measured pressure on the span calibration screen to match the true applied pressure Press the enter key to store the span offset data ...

Страница 35: ...Operating Instructions DPG 2400 Series 35 Digital Pressure Gauge DPG 2400 Series Notes ...

Страница 36: ...20 Web site www mensor com email sales mensor com Operating Instructions DPG 2400 PN 0017460001R 07 2013 WIKA Alexander Wiegand SE Co KG Alexander Wiegand Straße 30 D 63911 Klingenberg Germany TEL 49 93 72 132 9986 WEB SITE www wika de FAX 49 93 72 132 8767 E MAIL testequip wika de ...

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