Tel : +86 17359287459
Email : sales9@apterpower.com

Inquiry stage
Send me part number & company name & whatsapp & email address

Payment stage
Once price confirmed , I will make ProForma Invoice with bank account for you to pay

Shipment stage
Order your parts and arrange collection on the same day from our warehouse, either in person or by courier.

Detailed Specifications
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Description |
The PFEIFFER D-35614 PKR 251 is a Compact FullRange™ active vacuum sensor that combines two distinct measuring technologies into a single housing. It seamlessly blends a Pirani thermal conductivity sensor with a cold cathode gauge based on the inverted magnetron principle. This hybrid engineering allows users to monitor total pressure via a single connection flange, handling continuous measurements spanning from atmospheric pressure all the way down to ultra-high vacuum (UHV) zones. |
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Input Operating Voltage: |
15 to 30 V DC |
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Internal Chamber Voltage: |
Generates up to 3.3 kV |
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Internal Chamber Current: |
Stays below 500 µA |
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Analog Signal Output: |
1.8 to 8.6 V DC |
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Ambient Operating Temperature: |
5 °C to +55 °C |
Applications
1) Semiconductor Processing Chambers: Installed directly on wafer load locks, physical vapor deposition (PVD), and chemical vapor deposition (CVD) tools to accurately verify complete pump-down cycles before admitting reactive process gases.
2) Analytical Instrumentation (Mass Spectrometers): Serving as the primary full-range vacuum interlock tracker on electron microscopes and gas chromatography-mass spectrometry (GC-MS) units to shield delicate detectors from high-pressure degradation.
3) Industrial Vacuum Furnaces & Coating Plants: Monitoring architectural glass coating systems, thermal processing ovens, and tool hardening chambers from standard atmospheric loading conditions down to deep baseline high-vacuum states.
Application
² Thermal power plants: Installed in turbine bearing housings, they monitor rotor axial movement and radial vibration in real time to prevent mechanical collisions.
² Oil and gas plants: Deployed in high-speed centrifugal compressors, they provide high-precision key phase signals to aid in speed and phase analysis.
² Large chemical plants: In the continuous operation monitoring of large motors and pumps, their explosion-proof and high-protection characteristics ensure stable data transmission.
² Metallurgical and steel plants: Used in large fans and rolling equipment, maintaining sensor accuracy under harsh conditions of high temperature and frequent vibration.
² Nuclear power plants: As part of a critical safety instrumented loop, they provide highly reliable displacement data that meets international certification standards.
See more options
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ABB |
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3BHE022294R0101 GFD233 A |
2002NZ10801C |
DSSB140 48980001-P |
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YPP110A |
NKLS01-15 |
YPM102E YT204001-FL |
|
NGDR-03C |
NIMF02 |
3HAC024322-001 |
|
ICSK20F1 FPR3327101R1202 |
NIDS01 |
DC532-1SAP240100R0001 |
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HIEE451116R0001 FM9925A-E |
DDO04 0369644M |
AIEMMU21 |
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SPDSI13 |
1948022A1 |
RCM32 1TNA911004R0200 |
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3BHB005243R0105 KUC755 AE105 |
1948024G1 |
INNPM12 |
|
HIEE450964R0001 SA9923A-E |
IMCPM02 |
3AFE64547992 |
|
663636IAI |
NPCI03 |
3HAC17282-1 |
About FAQ
Q: Are you a trading company or a manufacturer?
A: Yes, we are a trading company.
Q: Do you have inventory or need to buy from other suppliers?
A: We keep a lot of inventory to sell, and we have our own warehouse.
Q: Do you provide 100% original and new products?
A: Of course. No plagiarism, no counterfeiting, no renovation! Original only! ! !
Q: Do you sell outdated products? Even a very old product?
A: If there is a new model that needs to be replaced, we will recommend you to use the new model; if it is not easy to replace, we will help check the old one in good condition. If used or other conditions, we will tell you the truth.
Disclaimer
Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks.Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
Disclaimer: Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks.Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.