CS-DHP Downhole Pressure Sensor
Pressure measurements in extreme downhole environments
≤ ± 0.15% BFSL accuracy
About the CS-DHP
The DHP series miniature 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.
Features
Common Applications
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Performance @ 25°C
Accuracy:*
≤ ± 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
Linear Vibration:
10g, 10 to 1000Hz
Shock:
100g, 11msec, 1/2 sine
Weight (excluding cable):
35 grams, typical
Electrical
Excitation:*
10VDC, typical
12VDC, max
Full Scale Output @ 10VDC:
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% FSO
* Sensor will operate off of any voltage up to 12VDC. Output is ratiometric to supply voltage used.
Specifications are subject to change without notice
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– Ordering Example: CSDHP-AE20000PSAA000 (3/8-24 UNF Male w/ 74° cone, Titanium BT9, 0-20000 PSI sealed gauge, mV, Solder hooks)
– 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.
Note that dimensions are for reference only. Please contact us if you do not see a dimension listed.
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