Your cart is empty.




Ametek Crystal XP2i-DP Digital Test Gauge

<< Previous in Pressure Next in Pressure >>

Price: $3,571.00
Item Number: XP2i-DP
Manufacturer: AMETEK/CRYSTAL


* denotes required field

Pressure Ranges*
Connection Location

XP2I-DP Differential Pressure Gauge

A rugged Wet/Wet Differential 

Ultra rugged, intrinsically safe, Differential Pressure Gauge with 0.1% of reading accuracy, capable of continuous vacuum measurement. 

  • High accuracy, long term vacuum measurement
  • 0.1% of reading wet/wet differential transducer
  • Customizable for panel mounting or portable configurations
  • Define custom pressure units
  • Marine-grade enclosure resists corrosion
  • Easy to use-No Menu. No Manual? No Problem!

With the optional DataLoggerXP upgrade:

  • Record 32 000 data points
  • Battery-optimizing, Ultra Low Power (ULP) Mode
  • Over an entire year of continuous recording time
  • Now available on the Dual-Line Display XP2i

Starting in January 2017new XP2i gauges include a signal that will warn users when the gauge calibration is about to expire. Using our free ConFigXP software, the gauge can be programmed to alert you prior to, on, and after the gauge’s calibration due date.

They can even select the type of alert you want from a start-up warning to a continuous warning which does not allow the user to operate the gauge.


*Not recommended for oxygen service

  • Gas filter testing
  • Level measurement
  • Rotary gas meter testing
  • Autoclave vacuum monitor / calibration

Every XP2i-DP Digital Differential Pressure Gauge comes with an ISO 17025 calibration report - NIST traceable, A2LA accredited, internationally recognized by ILAC - with test data at 5 temperatures, proving our gauges meet specifications throughout their full temperature range. 


*Not recommended for oxygen service

0 to 20% of Range: ± (0.02% of Full Scale +
Static Line Effect*
Includes all effects of linearity, hysteresis, repeatability, temperature, and stability for one year.
20% to 110% of Range: ± (0.1% of Reading +
Static Line Effect*
For continuous vacuum use, connect to the right (-) port marked "Vacuum this side."
*Static Line Effect 0.0003 psi/psi lowest static pressure.   

Temperature Range: -10 to 50°C (14 to 122°F) Non-condensing. No change in accuracy over operating temperature range. Gauge must be zeroed to achieve rated specification.
Screen: 5.5 digits
16.9 mm (0.67") high
LCD readable in sunlight with bright backlight.
Display Rate: 4 rdgs/sec (standard)  
  8 rdgs/sec (PSV Mode) PSV mode is intended for Pressure Safety Valve testing, and requires software to enable. 

3 x AA: 1500 hours, typical Uses 3 alkaline AA (LR6) batteries. Use of backlight and/or RS232 reduces operating time.
    Optional AC power supply available. Do not use AC power supply in hazardous locations.
Ultra Low Power: Over 1 year, typical** ** 20 minute recording interval or greater in LT5 mode.
Digital Interface: RS232, DB-9F Free Labview drivers and programming instructions are available for download from website.
    Do not use RS32 in hazardous locations.
Capacity: 32 000 data points DataLoggerXP Firmware Update may be purchased at time of order, or in an Upgrade Package later.
Storage Type: Flash memory Software available for download from our website.
Minimum Interval: 1 second Compatible w/ 32 & 64 bit Windows 7, Vista, and XP 32 bit.
Maximum Interval: 18 hours Produces csv files, or used Excel template files (samples included) to automatically format and graph data.
Min. Event Duration: 250 mS*** *** Logging Type - Average with Peaks.
Weight: 915 g (2.0 lbs) Weight includes batteries.
Rating: IP67 Submersible to 1 m for 30 minutes [IEC 60529].
Housing: Diecast aluminum Nickel plating over low copper, marine grade aluminum.
Keypad and Labels: UV Resistant Polyester LCD protected from impact damage by 1.5 mm (0.06") thick polycarbonate lens under polyester window.
    Skydrol compatible.
Wetted Materials: 300 series stainless steel All welded, with a permanently filled diaphragm seal.
  and buna-n internal o-ring  
Diaphragm Seal Fluid: Dow Corning 200  
Connection: 1/8" Female NPT Optional connection on back.
Max. Static Line 100 psi  
Temperature Range: -40 to 75°C (-40 to 167°F) Batteries should be removed if stored for more than one month.

The following requires the use of our free ConFigXP software. (See below for Free download)


User Defined Unit: Allows the user to define and display any pressure units not included, or to use the gauge to display force, level, or other pressure related parameters. Reduce or increase displayed resolution.
PSV Mode: Intended for pressure safety valve / burst disk testing. 8 readings per second. Captures point at which valve opens, as well as reseat pressure.
Averaging: Smooths unsteady readings (1 to 10 samples).
Remove: Unwanted pressure units from Units button.
Disable: Peak pressure button.
Limit or Disable: Zero button.
Password Protect: Changes to configuration or calibration factor(s).
Save: Configuration to a file.
Copy: Configuration to other gauges. 

Intrinsically Safe and Non-incendive for Hazardous Locations: Class 1, Division 1, Groups A, B, C, and D, Temperature Code T4/T3C.


The instrument was tested againstAS/NZS 3584, C-tick EMC/EMI requirements.


XP2i-DP complies with the Electromagnetic Compatibility and the Pressure Equipment Directives. Refer to the EC Declaration of Conformity for specific details.


XP2i-DP is approved for use a portable test instrument for Marine use and complies with Det Norsjke Veritas' Rules for Classification of Ships, High Speed & Light Craft and Offshore Standards.

psi bar kPa   Display Resolution
P/N P/N P/N Over
(+/- ports)
psi inH2O inHg mmHg mmH2O kg/cm2 bar mbar kPa MPa
15PSI 1BAR 100KPA 6.5x / 3.0x 0.001 0.01 0.001 0.01 1 0.0001 0.0001 0.1 0.01 0.00001
100PSI 7BAR 700KPA 2.0x / 2.0x 0.001 0.1 0.01 0.1 1 0.0001 0.0001 0.1 0.01 0.00001


Unneeded pressure units may be disabled via the RS-232 connector using ConFigXP software. • kPa and MPa models can display pressure in kPa, MPa, and bar (or mbar) only. psi and bar models can display all available units. • An XP2i will indicate pressure up to 10% above Range Pressure. Above 110%, the XP2i display will flash, indicating that the applied pressure exceeds the calibrated pressure range. If the calibrated pressure range is exceeded, the pressure displayed may not be accurate.


P/N Model Connection Location Panel Mount? Data-logging?
_____ XP2i-DP _____ _____ _____
  Standard: Bottom: (omit) No: (omit) No: (omit)
  Options: Back: -RP Yes: -F4 Yes: -DL
15PSIXP2i-DP 15 psi differential gauge.
100PSIXP2i-DP-DL 100 psi differential gauge, with the DataLoggerXP option.


F4- Panel Mounting - Includes a 4.5 inch gauge panel mount kit with a rear pressure port. To replace a 6 inch or 8.5 inch panel mount gauge

RP- Rear Port Fitting - The rear port fitting can be ordered separately, but is included automatically with the panel mount flange option (F4).


Part No.




Allows you to record 32 000 data points. The software application handles all of the transfer and saving of data to your computer's hard drive, while the XP2i-DP, once authorized, performs all of the actual data collection. You can also use the software to update your gauge to the latest firmware.



Allows you to customize your gauge by adding or disabling features.



Calibration software that allows you to perform a 10 point up and down calibration in less than 3 minutes.

LabVIEW Driver

LabVIEW Driver

If using LabVIEW, the driver library implements the serial commands of the XP2i-DP and provides parsing of the streaming data output.

Crystal USB Driver

Crystal USB Driver

Driver for part# 3313 USB-RS232 Adapter.



Easy pressure unit calculator.  Displays all conversion factors and converted units at the same time.  UnitCalc also calculates Head Correction, Gravity Correction, and Air Density.


Part No.

3696 Protective Boot
A Skydrol compatible elastomeric boot to increase shock resistance.

Hard Carrying Case (egg crate foam)


Weatherproof Hard Carrying Case (die-cut foam)

RS232 Cable (6ft)
The XP2i-DP can be calibrated via the keypad or the RS232 port, or automatically using a calibration grade pressure controller



USB B receptacle to RS232 DB9M.

2955 Flange Adapter Kit 
6 inch flange adapter kit.  Requires a gauge with the -F4 panel mount option.


Flange Adapter Kit 
8.5 inch flange adapter kit.  Requires a gauge with the -F4 panel mount option

Universal AC Power Supply
Includes a set of plugs permitting use worldwide. In the event of a power failure, an XP2i-DP powered by the AC power supply will automatically switch to its internal batteries.

Get the Software ConfigXP.

Get the Software DataLogger XP.

Get the XP2i LabVIEW Driver.

Don't have Reader?

Download the Manual. Download the Datasheet .   Download the Complete Pressure System Brcohure .

Related Products

Ametek Crystal XP2I Digital Test Gauge
Price: From $197.00 to $2,236.00
Ametek Crystal XP2I Digital Test Gauge
High accuracy digital pressure gauge. 0.01% of reading accuracy Available Ranges: 15psi to 10,000psi. NIST traceable cert. Intrinsically Safe. Shock Resistant, water resistant, Datalogging capable.
Ametek Crystal WT Series Digital Gauges
Price: From $1,875.00 to $1,951.00
Ametek Crystal WT Series Digital Gauges
Convert your old "Wally Box!" Drop in conversion gauge allows you to upgrade your old analog standby from years ago! 0.1% of READING accuracy. NIST traceable, with cert.
Ametek Crystal CalHP Pressure Gauge Calibration System
Price: From $9,464.00 to $14,499.00
Ametek Crystal CalHP Pressure Gauge Calibration System
This portable gauge and transmitter calibration system is 7 to 10 times faster than a dead weight tester. It allows you to do a 10 point up and down calibration in less than 3 minutes including printing out a calibration certificate.
Ametek Crystal FASTCAL XP Software
Price: $2,203.00
Ametek Crystal FASTCAL XP Software
FastCalXP software allows you to complete a 10 point up and down calibration in less than 3 minutes including printing out a calibration certificate. Compatible with nVision, XP2i, and 30 Series.
Ametek Crystal DataLoggerXP
Price: $917.00
Ametek Crystal DataLoggerXP
The DataLoggerXP software*, in tandem with the XP2i digital pressure gauge with a purchased DataLoggerXP firmware upgrade, forms an integrated data logging solution by collecting, saving and transferring data to a Microsoft Excel spreadsheet.