• RS485 Interface for Digital Operation with PC
• USB Version Available
• FS Ranges from 5 to 10,000 Psid
• Inconel Wetted Parts Available
• Excellent Stability Over Wide Thermal Range
• 0.25% FS Accuracy, 0.7% Max Temperature Error
• For Liquid or Gas Service
• 12,500 Psig Line Pressure Rating
• Compatible with Serial Port Software
The Validyne model P368 is a digital differential pressure transmitter designed for high line pressures and industrial pressure measurement applications. Full scale ranges of 5 psid to 10,000 psid are available. The on-board microprocessor provides high accuracy and improved stability in changing thermal environments.
Communication via serial RS485 or USB provides remote zero and span adjustment as well as digital pressure readings in engineering units.
The P368 is designed for a wide variety of high pressure measurements where high resistance to vibration and superior stability through temperature change is required. The P368 will accept both liquids and gases directly at the sensing diaphragm.
The P368 provides digital readings directly in engineering units of psi.
The zero and full-scale outputs are set by RS485 or
USB digital command. No potentiometer adjustments are required to calibrate.
Pressure readings via serial port are available in engineering units. The temperature reading at the sensor is also available.
The P368 has 1/8 inch female NPT pressure connections and measures just 1.75 x 1.75 x 5 inches overall.
The P368 is powered by the +9 to +55 Vdc and draws just a few mA.
The P368 is compatible with standard Validyne serial port software. A LabView VI is also available.
•
Core Testing Applications
• Hydraulic Systems
• High Line Pressures/Low DP
8626 Wilbur Avenue - Northridge, CA 91324 - Voice: 818-886-2057 - Fax: 818-886-6512
Website: www.validyne.com - E-Mail: sales@validyne.com

General Specifications –
Ranges:
Accuracy:
Sensor Physical Specifications -
P368D: +/-5.0 psid to +/-10,000 psid
Pressure Media: Liquids & gases compatible with 410 Steel and Inconel
O-Rings: Buna-N Standard, other compounds available
P368D: +/-0.25% FS, includes non-linearity, hysteresis and non-repeatability
Pressure Cavity Volume: 4 e-3 cu in, each port
Volumetric Displacement: 3 e-4 cu in at FS
Weight: 24 Oz.
Overpressure:
P368D: 200% FS up to 12,600 psi maximum with less than
0.5% FS output shift Electrical Connector: PT02A-12-10P
Line Pressure:
P368D: 12,500 psig maximum, with zero shift less than 1%/Kpsi
Pressure Ports:
P368D: 1/8" female NPT
Power Supply:
Current Draw:
Environmental Specifications -
Operating Temp: 0 to +160 F
-65 to +250 F Optional
Compensated Temp: 0 to +160 F
-65 to +250 F Optional
+5 to +55Vdc
7 mA, typ
Output:
Zero Balance:
Span:
Digital Readings via RS485 or USB (see ordering info)
Auto-zero via RS485/USB
Set by RS485/USB
Output Noise: 2 mVrms
Insulation Resistance: 100 MOhms, any terminal to case
Temperature Error: +/-0.7% FS
Over Operating Temperature
RS485/USB: 9600 baud 8N1 protocol
Bus address for up to 99 transducers
String commands and responses
8626 Wilbur Avenue - Northridge, CA 91324 - Voice: 818-886-2057 - Fax: 818-886-6512
Website: www.validyne.com - E-Mail: sales@validyne.com

Electrical Connector:
A: + Power
B: Common
C: Case Ground
D: + Analog Output
E: Common
F: RS485A In
G: RS485B In
H: RS485 Shield
J: RS485A Out
K: RS485B Out
Range Chart:
8626 Wilbur Avenue - Northridge, CA 91324 - Voice: 818-886-2057 - Fax: 818-886-6512
Website: www.validyne.com - E-Mail: sales@validyne.com

8626 Wilbur Avenue - Northridge, CA 91324 - Voice: 818-886-2057 - Fax: 818-886-6512
Website: www.validyne.com - E-Mail: sales@validyne.com