You are here: Home1 > Products2 > High Temperature Pressure Sensors3 > CS-DHP Downhole Pressure Sensor
≤ ± 0.15% BFSL accuracy
CS-DHP
Downhole Pressure Sensor
Features
Great For…
About the CS-DHP
The DHP Downhole Pressure Sensor uses a fully active four arm Wheatstone bridge, dielectrically isolated Silicon on Sapphire sensing element based on proprietary technology. This sensor was designed to withstand the high pressure, high temperature environments that are common in downhole oil & gas exploration. The compact design allows for installation in downhole tools without sacrificing space. Standard offering includes a 3/8”-24 UNF-2A process connection, uncompensated millivolt output signal, 12.5mm diameter housing and solder hooks. Integral high temperature cable can be added upon request. A PT1000 temperature output is available for further measurement capabilities.
12.5mV/V output typical
Miniature Package – High Millivolt Output
The CS-DHP Downhole Pressure Sensor offers a typical full scale output of 125mV when using a 10VDC excitation. This provides a large amount of usable output, simplifying signal conditioning.
An optional PT1000 temperature output is available for applications where a reference temperature measurement is beneficial.
All of these features come in a small, compact package with a typical diameter of 12.5mm. The CS-DHP comes standard without a hex on the front end of the sensor (near the process connection threads) to ensure fitment in drilling tools with confined spaces. A hex comes standard on the back end of the sensor (near the electrical termination points) which can be used during installation.
Specifications
Performance
Accuracy @ 25°C*
≤ ± 0.15% BFSL
Stability (1 Year)
≤ ± 0.25% of FS
Overpressure
1.5X rated pressure
Burst Pressure
2X rated pressure
* Accuracy includes non-linearity, hysteresis and non-repeatability
Thermal
Operating Temperature
-195 to +204°C
TC Zero
0.025% FS per °C, typical
TC Span
0.05% FS per °C, typical
Environmental
EMI/RFI Protection
No
Vibration
10g, 10 to 1000Hz
Shock
100g, 11msec, 1/2 sine
Electrical (Millivolt)
Outputs
Millivolt uncompensated
Excitation*
10VDC, typical
12VDC, max
Full Scale Output @ 10 VDC
100mV, minimum
125mV, typical
200mV, max
Isolation Voltage
500VDC
Input & Output Impedance
3.5KΩ, typical
Response Time
0.1ms, typical
0.2ms, max
Zero Offset (of FS)
≤ ± 5%
* Sensor will operate off of any voltage up to 12VDC. Output is ratiometric to supply voltage used.
Specifications are subject to change without notice
Model Number Configuration
Not all configurations are available. Our sales team can recommend the closest available configuration based on your requirements.
Contact Core Sensors for configurations not shown.
– Ordering Example: CSDHP-AE20000PSAA000 (3/8-24 UNF Male w/ 74° cone, Titanium BT9, 0-20000 PSI sealed gauge, mV, Solder hooks)
Note: Mobile users can use the zoom feature to view the model number configuration matrix clearly.
Dimensions
Note that dimensions are for reference only. Please contact us if you do not see a dimension listed.
Note: Mobile users can use the zoom feature to view the model number configuration matrix clearly.
Connect With Our Sales Team
Have questions? Need a quote? We are ready to help! Fill out the form and a member of our sales team will contact you to discuss your requirements. You can also give us a call at (862) 245-2673.
