PRECISION DIGITAL PD243 Operating Instructions Manual
PRECISION DIGITAL PD243 is a versatile digital test gauge with a 3-inch dial, full-scale accuracy, and a large display. It offers a wide range of pressure units, configuration options, and password-protected calibration features. This gauge is ideal for measuring pressure in various industrial applications, including hydraulic systems, pneumatic systems, and process control.
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GAUGE INSTALLATION Pipe Mount – The digital test gauge comes standard with a 1⁄4 NPT connection. Good piping practices recommend using teflon tape or a pipe sealant on the gauge threads. Utilize a 7⁄16˝ wrench on the wrench flat of the gauge to tighten the gauge to the process. NEVER TIGHTEN GAUGE THREADS BY HOLDING THE BODY OF THE GAUGE. DOING SO MAY DAMAGE THE GAUGE AND MAKE THE GAUGE INOPERABLE. Panel Mount – The lower connected digital test gauge is available with an optional flange for panel mounting. Please refer to illustration and dimensions below. Precision Digital Test Gauge Model PD233, PD243,PD253 Operating Instructions .17 HOLE CUTOUT DIAMETER 3.406 (313⁄32 ±1⁄32) 1.860 4.00 Battery Installation and Replacement: The gauge comes standard with a quantity of three AAA alkaline batteries (installed). Use either Duracell MN2400, MX2400 or Energizer E92BP, X92RP AAA alkaline, non-rechargeable batteries. Batteries have a life of approximately 1000 hours. Battery life is dependent on gauge usage, backlite settings and power off settings. When the display flashes LOW BAT, batteries should be replaced. To replace the batteries: 1) Remove the single screw on the back of the gauge case. 2) Hold the keypad in the palm of hand. 3) Carefully remove the three batteries from the holder and replace the batteries. Use only AAA alkaline non-rechargeable batteries. ! Pipe to which gauge is attached must be properly grounded. Precision Digital Corporation 19 Strathmore Road Natick, MA 01760-2418 Tel: 800-343-1001 Fax: 508-655-8990 I&M008-10135-9/05 I&M008-10135-9/05 dwg. 83B234-01 Rev. A SPECIFICATIONS Congratulations on your purchase of the Precision Digital Test Gauge with total error band full-scale accuracy and the largest display readout in the industry of .66˝ high. Other industry-leading features include twelve selectable engineering units, seven languages, and password-protected disable and calibration functions. With the range printed on the keypad, this digital gauge meets the ASME B40.7 digital gauge specification. See a complete listing of product features and specifications on pages 14 & 15. Config Mode Allows Scrolling Through CONFIG Menus Engineering Units Psi, ˝Hg, ˝H2O (with three temperature options, 60°F, 4°C and 20°C), ft.SW, bar, mbar, kPa, MPa, mmHg, cmH2O, mmH2O, kg/cm2 Update Rate 4 Options: 10x/sec, 5x/sec, 2x/sec, 1x/sec Auto Off 6 Options: Never, 2 Min., 5 Min., 15 Min., 30 Min., Dampening 6 Options: None, Average 2, 4, 6, 8 x update rate Languages 7 Languages: English, Spanish, French, Italian, German, Portuguese, Dutch Backlite 5 Options: On/Off, 10 Sec., 30 Sec., 5 Min., 15 Min. Field Recalibration Zero & Span (password protected) Contrast 7 Available Options Disable Config Options Allows disabling of Config Options (password protected) Calibration Chart 10 Point Individual NIST Traceable Calibration Chart, Standard Standard Accessories 300 Series SS Protective Cover Nylon Protective Carrying Pouch WARNING AND ERROR MESSAGES Precision Digital Corporation 19 Strathmore Road Natick, MA 01760-2418 Tel: 800-343-1001 Fax: 508-655-8990 Display Description Flashing 0% or 100% LOW BAT Gauge over/underpressured beyond 105% of range Low battery, replace Internal error, call customer service (203) 378-8281 Pressure unit conversion exceeds display resolution or gauge pressured beyond resolution ERROR RES ERROR –2– – 15 – SPECIFICATIONS Model Accuracy PD233, PD243, PD253 0.05%, (PD253), 0.10% (PD243), 0.25% (PD233) Full Scale Terminal Point Total Error Band (TEB) Accuracy Including Hysteresis, Linearity, Repeatablilty & Temperature (–18/65°C) (0/150°F) Dial Size 3" Case Material 300 Series SS Case Finish Electropolished Case Enclosure Rating Weatherproof, IP65 Socket Material 316 SS Socket Size 1⁄4 NPT Male (others on application) Socket Location Lower connection, 6:00 o’clock Ranges Vac thru 7000 psi (see other engineering units below for other units of measurement) Operating Temperature 0/150°F Storage Temperature –40/180°F DISPLAY: Type LCD Display Digits 5 Character Height .66˝ Backlit Off By Default Bargraph Yes Battery Life 1000 Hrs. Agency Approvals CE, FM & CSA (Intrinsically Safe Class I, Div 1) KEYPAD FUNCTIONS: On/Off Manually Turns Unit On & Off (auto off options in config menu) Backlit Manually Turns Backlit On & Off (auto off options in config menu) Min/Max Stores Min & Max Values Zero/Clear Zeros Display or Clears Min/Max Values When Displayed Enter Selects Items In CONFIG Menu – 14 – TABLE OF CONTENTS Quick Reference Guide Keypad Functions • ON/OFF KEY • BACKLITE KEY • MIN/MAX KEY • ZERO/CLEAR KEY • ENTER KEY • CONFIG KEY Page 4-5 6-7 Configurable Functions (CONFIG Mode) • Units (Engineering) • Update Rate • Auto Off • Backlite • Languages • Damping • Contrast • Calibrate (Gauge Calibration) • Disable Available Ranges 7-12 7 7-8 8 8-9 9 9-10 10 10-11 12 13 Specifications 14-15 Installation & Battery Replacement • Mounting • Battery Replacement & Installation –3– 16 QUICK REFERENCE PRESURE RANGES: .66˝ high display, 5 digit Bargraph % of full scale Flashing display when unit pressured below zero Press to indicate minimum or maximum pressure gauge has measured Press again to return to pressure units While in max or min mode, press to clear minimum or maximum displayed values UNITS (Pressure) ENGLISH PSI INHG INH2O with Temperature (Options: 60°F, 4°C, 20°C) FTSW METRIC BAR MBAR KPA MPA mmHG CMH2O mmH2O KG/CM2 BACKLIGHT (Off options) ON/OFF* 10 SEC 30 SEC 1 MIN 5 MIN –4– UPDATE RATE (Pressure measurement per second) 10x* 5x 2x 1x DAMPING (averages gauge reading None* AVG 2 AVG 4 AVG 6 AVG 8 LANGUAGE(s) English* French Spanish German Italian Portuguese Dutch psi vac. 5 10 15 30 60 100 160 200 300 500 600 800 1000 1500 2000 2500 3000 5000 7000 mmH2O 3000 5000 10,000 Compound (psi) 15# & vac. 30# & vac. 60# & vac. 100# & vac.6 MPa 1 1.6 2.5 6 10 40 kPa –100/0 25 40 60 100 160 250 400 600 1000 mBar/ cmH2O 250 300 400 500 600 1000 1600 2000(2) 2500(1) 4000 5000 6000 10,000 – 13 – Bar/ KSC 1 1.6 2.5 4 6 10 16 25 40 60 100 160 250 400 500 Absolute (psia) 15 25 50 Compound (bar) –1 to 0 –1 to 1 –1 to 2 –1 to 3 –1 to 30 Temp. Options 4°C 20°C 60°F QUICK REFERENCE Step 3: Enter user five digit password (PW). This is the same password established to access the CONFIG mode in the menu. Step 4: Press the CONFIG key to select the desired option. Step 5: Press ENTER to finalize the selection. Notes: Selecting the DISAB feature does not disable the CLEAR button on the keypad for the MAX/MIN feature. If the DISAB feature is selected, pressing the ZERO button on the keypad will cause the display to read DISAB for two seconds. The gauge will then revert back to the unit of measure of the gauge. The DISAB feature disables the zero feature of the gauge. Zero Disable Feature: This feature allows disabling the Zero/Clear button on the keypad. It also allows for a zero tolerance of either 5% (default) or 10% of the gauge range. Step 1: Press the CONFIG key until the word ZERO SP appears. Step 2: Press ENTER. Step 3: A prompt appears to enter PW (enter password). The ZERO SP password is the same password as discussed on page 10 and the heading CALIBRAT:, Gauge Calibration. Follow the instructions on page 10 to enter a password. Step 4: Press the CONFIG key to select the zero tolerance, either 5% or 10% of range, or press the CONFIG key again and the word DISAB appears. Press ENTER to select the new default setting. Press to turn unit on or off Press to turn backlite on or off Flashing display when unit pressured beyond full-scale This bargraph indicates battery level; the more segments, the closer the battery is to full charge Range on keypad; complies with ASME B40.7 While in unit of measurement mode (eg: psi), press the ZERO CLEAR button to rezero the gauge. This feature functions when displayed pressure is within ±5% of zero value AUTO OFF (Turns unit off after option selected) Never* 2 minutes 5 minutes 15 minutes 30 minutes CONTRAST (Customizes display readout) 7 available Selection 4 is Default* – 12 – CALIBRATE Zero and span adjustments, password protected DISABLE Allows for “lockout” of CONFIG options *Indicates Default –5– KEYPAD FUNCTIONS ON/OFF BACK LITE MAX MIN ZERO CLR ENTER CONFIG Turns the gauge on and off. When pressing the ON/OFF key while in the off position, gauge startup display first indicates the software version followed by the gauge pressure range. The gauge will then display indicated pressure and be ready for use. Manually turns backlite on and off. (See CONFIG mode for options). Allows review of minimum and maximum pressure values since unit start-up or last push of the clear button. Press key to: 1) Indicate maximum pressure. 2) Indicate minimum pressure. 3) Exit MAX/MIN mode and return to unit of pressure measurement mode. To clear minimum and maximum values press ZERO/CLR button. Must be in MAX/MIN mode. Note: MIN/MAX data is lost when unit is turned off. Press this key prior to gauge usage to rezero any initial offset less than ±5% of the rated gauge range. If indicated pressure is greater than 5% of range, the rezero feature becomes inoperable. This prevents accidental tare of a pressurized gauge. To clear minimum and maximum values, press ZERO/CLR button (when min/max values are indicated. Used in conjunction with CONFIG key, see next page. This key allows for customization of the gauge. Pressing the CONFIG key allows cycling through the main menu items; UNITS, UPDATE, AUTO OFF, BACKLITE, LANGUAGE, DAMPING, CONTRAST & CALIBRAT. –6– Zero Calibration: Step 14: Press the CONFIG key once and the word CALIBRA appears. Press ENTER. (This mode allows for 0 and full- scale adjustment of span.) The gauge will now display 0.00. Ensure the gauge is not pressurized,1 then press ENTER to zero the gauge. Zero calibration is now complete. Full Scale Calibration Step 15: The gauge will now display full-scale range (e.g. 100.00 psi). Pressurize the gauge to 100% of the range (which is equal to the displayed value) utilizing a pressure standard with accuracy four times greater than the unit being calibrated.2 Press ENTER. Full-scale calibration is now complete. Notes: 1. If the digital gauge under test is not pressurized while in span adjustment of full-scale range, an ERROR message will be displayed when the ENTER button is pressed. If this occurs, press the ZERO CLEAR button on the keypad to return to the previous screen. 2. ASME B40.7-1998, section 6.1.1.1 recommends the working standard for the gauge being tested is 4X better than the digital gauge under test. This means the pressure standard measuring the full-scale pressure being applied to the gauge should have an accuracy four times greater than the unit being spanned. Zero SP (span): This feature allows setting the % of span in which the zero button will operate. Span is limited to prevent accidental tare of process pressures. Options are 5%, 10% or DISAB (5% is the factory default and means the unit can be rezeroed between ±5% of span). If DISAB is selected, the zero button is deactivated and no display change will occur when the zero button is pushed. Step 1: Press the CONFIG key until the word ZERO SP appears. Step 2: Press ENTER. – 11 – KEYPAD FUNCTIONS Step 1: Press the CONFIG key until the word CALIBRAT appears. Step 2: Press the ENTER key. Step 3: The letters/asterisks… PW***** appear. Step 4: Press the CONFIG key. An Ø appears in the first position. Step 5: Press the ENTER key once. Step 6: Press the CONFIG key until Ø appears. Ø will appear in the second position. Step 7: Press ENTER. Step 8: Use this format until all the asterisks are replaced with Ø. There now should be a total of five Ø’s on the keyboard display. The zero in the fifth position should be blinking. Step 9: Press the ENTER key. You are now prompted to SET PW (or set password). Step 10: Press the ENTER key. Step 11: Decide on a five number user password, then follow the procedure above inserting a number in the flashing display until all five numbers are inserted. Step 12: A SAVE prompt will then appear. If the selected user password is acceptable, press ENTER. If the selected user password is not acceptable press ZERO CLEAR to refigure the user password. After the password is configured, the default factory password will be replaced with the user password. Once configured, the factory password is no longer accessible. If an incorrect password is entered, the system will display WRONG. Press the CONFIG key to reenter the correct password. Step 13: Press ENTER again to begin calibration. Note: Calibration feature allows recalibration of zero and span. *Indicates default. – 10 – KEYPAD FUNCTIONS UNITS: 12 units of measurement are available, both English and metric, by cycling through the UNITS key; psi, ˝Hg, ˝H2O (with three temperature options, 60°F, 4°C and 20°C), ftSw, Bar, mBar, kPa, MPa, mmHg, cmH2O, mmH2O, kg/cm2. Step 1: Press the CONFIG key until the word UNITS appears. Step 2: Press the ENTER key. Step 3: Press the CONFIG key once to select ENGLISH or again to select METRIC. Step 4: Press the ENTER key with selection of ENGLISH or METRIC. Step 5: Press CONFIG key to select unit of measurement. Step 6: Press ENTER key to finalize unit of measurement. UPDATE: this option allows for changing the rate at which pressure is updated on the display screen. The default rate measures pressure at the maximum rate of 10* updates per second or 100 milli-seconds. Optional rates of measurement are measured in updates per second. The options are 10*, 5, 2 or 1 update of pressure measurement per second. Since customer processes vary, update rates should be selected based on the application. To use the UPDATE option: Step 1: Press the CONFIG key until the word UPDATE appears. Step 2: Press the ENTER key. Step 3: Press the CONFIG key to select the desired update rate. Step 4: Press ENTER key to finalize UPDATE rate. AUTO OFF: this option sets the amount of time before the gauge will turn itself off after no activity. *Indicates default. –7– KEYPAD FUNCTIONS Offerings are Never*, 2, 5, 15, or 30 minutes. To use the AUTO OFF option: Step 1: Press the CONFIG key until the word AUTO OFF appears. Step 2: Press the ENTER key. Step 3: Press the CONFIG key to select the desired AUTO OFF rate. Step 4 Press the ENTER key to finalize the AUTO OFF rate. BACKLITE: 5 options are available. They include ON/OFF*, 10 seconds, 30 seconds 1 or 5 minutes. With the ON option pressed, the gauge backlite will remain lit whenever the gauge is in the ON mode or until the backlite button is pushed again. Options allow the backlite to automatically turn-off after a selected period of time. Note: leaving backlite button on will decrease battery life. To use the BACKLITE option: Step 1: Press the CONFIG key until the word BACKLITE appears. Step 2: Press the ENTER key. Step 3: Press the CONFIG key to select one of the available time options. Step 4: Press the ENTER key to finalize your choice of BACKLITE options. LANGUAGE: available in seven different languages, this option allows the user to change the default language in the CONFIG mode. The languages include English*, French, Spanish, German, Italian, Portuguese and Dutch. Step 1: Press the CONFIG key until the word LANGUAGE appears. Step 2: Press the Enter key. Step 3: Press the CONFIG key to select one of the *Indicates default. *Indicates default. –8– KEYPAD FUNCTIONS available LANGUAGE options. Step 4: Press the ENTER key to finalize your LANGUAGE option. DAMPING: with six different options, this mode allows for taking process pressure readings and averaging them. This option is particularly useful when there is pulsation in the process. The options are NONE*, AVG 2, 4, 6 or 8. Step 1: Press the CONFIG key until the word DAMPING appears. Step 2: Press the ENTER key. Step 3: Press the CONFIG key to select one of the available DAMPING options. Step 4: Press the ENTER key to finalize your DAMPING option. CONTRAST: this mode allows for BACKLITE contrast level. Seven options are available, 1, 2, 3, 4*, 5, 6 and 7. Step 1: Press the CONFIG key until the word CONTRAST appears. Step 2: Press the ENTER key. Step 3: Press the CONFIG key to select one of the available CONTRAST options. Step 4: Press the ENTER key to finalize your CONTRAST selection. Note: setting high contrast levels will decrease battery life. CALIBRAT.: Gauge Calibration: Both zero and span adjustments are available. This gauge has been configured with a default password of ØØØØØ. This factory password does not allow access to calibration. To access the calibration mode, it is necessary to configure a user password. Once the user password is configured, it will become the default password that allows access to gauge calibration. To access the factory default password: *Indicates default. *Indicates default. –9– ">

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Key features
- 0.10% TEB accuracy
- 3” dia display
- 12 selectable units
- 7 languages
- Password-protected calibration
- IP65 weatherproof case
Frequently asked questions
The PD243 gauge has 0.10% TEB accuracy, including hysteresis, linearity, repeatability, and temperature.
The PD243 can display 12 different pressure units, including psi, ˝Hg, ˝H2O, ftSw, bar, mbar, kPa, MPa, mmHg, cmH2O, mmH2O, and kg/cm2.
The PD243's operating temperature range is 0/150°F (0/65°C).