Keller HPX High-Pressure Calibrator – 400 bar

Introduction – Keller HPX High-Pressure Calibrator – 400 bar

The Keller HPX High-Pressure Calibrator – 400 bar is a precision hydraulic calibration instrument designed for accurate verification of mechanical and electronic pressure devices. With a measurement accuracy of 0.05% FS (10–40°C) and a stable hydraulic pressure generation system, it ensures dependable results for industrial, laboratory, and field calibration tasks. Its robust construction and integrated digital display simplify pressure generation, tracking, and fine adjustment for technicians and engineers.

This model incorporates a built-in screw compressor, allowing fast and controlled pressure buildup using hydraulic oil (HLP 22 BP). The direct G 1/4" pressure port accepts most common pressure instruments, and the calibrator offers advanced functions such as zero-point adjustment, peak/trough capture, and leak-test measurement. Data can be transferred directly to a computer via the included K-114A USB interface, enabling logging and documentation.

The HPX series is widely used across industrial automation, process control, and maintenance environments. Its rugged design, long battery life, and sealed IP65 housing make it reliable even under demanding field conditions. This makes it a suitable choice for calibration professionals in the UAE and MENA region, where varying ambient temperatures and humidity require resilient equipment.

Dubai Sensor provides full access to the Keller HPX calibrator range, supporting industrial users with authentic documentation, accessories, and technical guidance.

Key Features & Benefits

• High Accuracy: <0.05% FS (10–40°C) ensures precise calibration results.
  
• Wide Pressure Capability: Hydraulic pressure generation up to 400 bar (model dependent, HPX range up to 700 bar).
  
• Fast & Stable Pressure Generation: Integrated screw compressor with hydraulic oil medium.
  
• Digital Measurement Functions: Zero-point setting, peak/trough display, leak measurement.
  
• Real-Time Data Output: Integrated PC interface with K-114A USB converter.
  
• Long Battery Life: Over 2000 hours of continuous use via 3V CR2430 battery.
  
• Robust Construction: Polyamide 12 housing, suitable for field use.
  
• Environmental Durability: Works in 0–50°C, 5–95% RH; compliant with CE & RoHS.
  
• Portable Design: Lightweight (~4 kg) with protective carrying case.
  
• Flexible Connectivity: Direct G 1/4” port with adaptors for G 3/8” and G 1/2”.
  

Technical Specifications – Keller HPX High-Pressure Calibrator – 400 bar

Standards & Certifications

• CE compliant
  
• RoHS compliant
  
• Conforms to environmental limits of 0–50°C and high humidity conditions (5–95% RH)
  

Applications & Industries

• Calibration of pressure gauges, transmitters, and sensors
  
• Field and laboratory calibration procedures
  
• Maintenance of hydraulic systems
  
• Quality assurance and periodic calibration routines
  
• Industrial automation, process plants, petrochemical operations
  
• Suitable for field technicians in UAE/MENA environments due to durable IP65 protection
  

Installation, Commissioning & Maintenance

Installation & Setup:

• Mount the test object directly onto the G 1/4" pressure port or use the supplied adapters.
  
• Ensure the internal hydraulic system is filled (provided pre-filled).
  
• Power the device using the supplied CR2430 battery.
  

Commissioning:

• Use the integrated screw compressor to generate the required pressure.
  
• Adjust pressure gradually for fine calibration.
  
• Utilize display functions for zero correction, peak/trough values, and leak measurement.
  

Maintenance:

• Periodically inspect connection threads and maintain cleanliness of hydraulic interfaces.
  
• Replace battery when low to maintain measurement stability.
  
• Store the instrument in the provided case to protect against dust and moisture.
  
• Use only HLP 22 BP hydraulic oil if refilling is required.
  

Why Choose Keller HPX High-Pressure Calibrator – 400 bar

The Keller HPX 400-bar model is engineered for professionals who require precise, stable, and repeatable hydraulic pressure calibration. Its superior accuracy, rugged IP65 housing, and long operational life make it ideal for demanding industrial environments. Whether used in process industries, maintenance workshops, or field calibration teams, the HPX delivers reliability and consistent performance.

Dubai Sensor supports industries across the UAE and MENA region with authentic Keller products, professional guidance, and complete accessory kits—ensuring accurate calibration workflows and long-term dependability.

Ordering Guide

1. Confirm Pressure Range:
   Select the HPX variant suitable for your application (400 bar model based on your request).
   
2. Check Required Adapters:
   Included adapters:
   
   
• ¼" → ⅜" BSP
  
• ¼" → ½" BSP
  
• G 1/4" → G 3/8"
  
• G 1/4" → G 1/2"
  
3. Package Contents Verified:
   
   
• HPX Calibrator (oil-filled)
  
• Carrying case
  
• Spare CR2430 battery
  
• USB interface converter K-114A
  
• Allen key(s)
  
• Test certificate
  
• Operating instructions
  
4. Contact Dubai Sensor:
   Dubai Sensor supplies the Keller HPX series along with documentation and support as an official distributor.

FAQ – Keller HPX High-Pressure Calibrator – 400 bar

Q1: What is the maximum pressure the HPX calibrator can generate?

The HPX series supports up to 700 bar according to the datasheet, but the specific unit referenced here is the 400-bar model.

Q2: What is the measurement accuracy of the HPX calibrator?

The accuracy is <0.05% FS within 10–40°C, and <0.1% FS across the broader 0–50°C range.

Q3: What medium is used for generating pressure?

The HPX uses hydraulic oil (Type HLP 22 BP) for pressure generation.

Q4: Which thread types can be connected to the device?

The main port is G 1/4", and included adapters allow connection to:

• G 3/8"
  
• G 1/2"
  
• ¼" → ⅜" BSP
  
• ¼" → ½" BSP
  

Q5: Does the HPX calibrator allow digital data logging?

Yes. It includes a K-114A USB interface for displaying and saving pressure data directly on a computer.

Q6: How long does the battery last?

The supplied CR2430 3V battery provides over 2000 hours of continuous operation.

Q7: Is the calibrator suitable for field use?

Yes. With IP65 protection, rugged Polyamide 12 housing, and a protective carrying case, it is designed for portable field applications.

Q8: What environmental conditions can it operate under?

• Operating temperature: 0…50°C
  
• Humidity: 5–95% RH
  
• Storage temperature: –10…60°C
  

Q9: What functions does the digital display support?

The integrated display provides:

• Zero-point adjustment
  
• Peak and trough pressure values
  
• Leak measurement functionality
  

Q10: What is included in the box?

The standard package includes:
Calibrator, hydraulic oil, carrying case, spare CR2430 battery, adapters, Allen keys, USB converter (K-114A), test certificate, and operating instructions.