1837085798 (=2901990978=1624896684): KIT PDP SENSOR-100C+20C

The 1837085798 (=2901990978=1624896684) – KIT PDP SENSOR -100°C/+20°C FOR DRYERS is a genuine Atlas Copco preventive maintenance kit designed specifically for Atlas Copco air dryers.

Product Introduction

This maintenance kit is essential for maintaining accurate pressure dew point monitoring in Atlas Copco air dryers. The PDP sensor continuously measures the pressure dew point of the air leaving the dryer, providing real-time data that enables the dryer’s control system to optimize regeneration cycles and minimize energy consumption. Without a properly functioning PDP sensor, your dryer cannot deliver the guaranteed air quality your production processes require.

This kit supersedes the previous part numbers 2901990978 and 1624896684, both of which are no longer available. When you order 1837085798 today, you receive the latest-generation PDP (Pressure Dew Point) sensor maintenance kit that meets Atlas Copco’s current manufacturing standards.

Technical Specifications

Parameter	Specification
Product Name	KIT PDP SENSOR -100°C/+20°C
Latest Part Number	1837085798
Superseded Part Numbers	2901990978 = 1624896684
Price	$1,000.00 excl. VAT
Origin	DE
Tariff Code	84149090
Weight	283.95 g
Length	160 mm
Width	110 mm
Height	110 mm

Kit Components

Description	Quantity
SENSOR MB -50/+50 C DP (PDP Sensor)	1
O-RING	1
ELEMENT FILTER (Inline Filter)	1

Verification of Genuine Authenticity

We have personally handled and inspected multiple units of this PDP sensor maintenance kit. Based on our direct experience, we can confidently confirm that every kit we supply is a 100% genuine, brand-new Atlas Copco original part.

Here is what we observe with every unit we receive from our direct supply channel—Atlas Copco (Shanghai) Trading Co., Ltd. :

• Clear Brand Identification: Each kit arrives in packaging bearing the unmistakable Atlas Copco brand logo, along with the correct model name and part number clearly printed on the label. The part number 1837085798 is prominently displayed, with supersession references to 2901990978 and 1624896684 noted where applicable.
• Neutral Carton Packaging: The kit comes in a sturdy, neutral-colored paper carton—standard packaging for Atlas Copco service kits. While the external carton is unbranded for logistical discretion, the internal components bear Atlas Copco’s branding and quality markings.
• Complete Component Set: Upon opening each kit, we verify that all three required components are present and correctly packaged:
  1. SENSOR MB -50/+50 C DP (PDP sensor) – 1 unit
  2. O-RING – 1 unit
  3. ELEMENT FILTER (inline filter element) – 1 unit
• Premium Build Quality: The sensor itself exhibits the precision engineering and robust construction that characterize all Atlas Copco genuine parts. The sensor housing, connectors, and sensing element all meet Atlas Copco’s stringent quality standards.
• Direct Sourcing Confirmation: Every kit we sell is sourced directly from Atlas Copco (Shanghai) Trading Co., Ltd. , the authorized Atlas Copco entity in China. This direct supply chain eliminates any risk of counterfeit or substandard products entering our inventory.

We have supplied this kit to numerous customers across various industries—including food processing, pharmaceuticals, electronics manufacturing, and automotive production—and have consistently received positive feedback regarding its perfect fit, reliable performance, and ease of installation.

Product Function and Replacement Procedure

What Does the PDP Sensor Do?

The Pressure Dew Point (PDP) sensor is a critical monitoring component in Atlas Copco air dryers. The pressure dew point describes the temperature at which water vapor in compressed air condenses into liquid water under the current operating pressure. In simple terms, it measures how much moisture remains in your compressed air after drying.

A lower PDP indicates drier air and a better ISO 8573-1 air quality class. The PDP sensor constantly measures this value and feeds the data to the dryer’s controller (such as the Elektronikon® system), which uses this information to:

• Optimize regeneration cycles in adsorption dryers
• Extend drying time only when necessary
• Reduce energy consumption by avoiding unnecessary regeneration
• Provide continuous, accurate air quality monitoring

Atlas Copco recommends replacing the dew point sensor annually because the calibration certificate is valid for only one year. The inline air filter in the sensor block should also be replaced once a year. This maintenance kit provides all the components needed for this annual service.

Replacement Procedure

Based on Atlas Copco official instruction manuals, the recommended procedure for replacing the PDP sensor is as follows:

Step 1: System Preparation

• Cut off the air supply from the compressor toward the dryer by closing the external inlet valve
• Close the air supply toward the PDP sensor (on dryers equipped with a PDP sensor)
• If installed, close the external outlet valve between the dryer unit and the dry air consumer

Step 2: Depressurization

• Depressurize the dryer and shut it down completely
• Wait for the system to fully depressurize before proceeding
• Switch off the voltage to the dryer

Step 3: Sensor Removal

• Locate the existing PDP sensor on the dryer
• Carefully disconnect the sensor cable
• Remove the old sensor from its mounting
• Remove and discard the old O-ring and inline filter element

Step 4: Installation of New Components

• Install the new ELEMENT FILTER (inline filter) in the sensor block
• Place the new O-RING in position
• Install the new SENSOR -100°C/+20°C PDP into its mounting
• Connect the sensor cable securely

Step 5: System Restart

• Slowly open the external inlet valve
• Switch the dryer on
• Gradually open the external outlet valve, keeping the pressure inside the dryer above 65.3 psi (4.5 bar)
• As required, close the bypass valves of the dryer
• Open the air supply toward the PDP sensor
• Plug the PDP sensor if it was unplugged

Important Safety Notes:

• The dew point sensor contains a delicate electronic system. Vibrations and shocks may lead to sensor damage—handle with particular care
• Installation, operation, maintenance, and repair work must only be performed by authorized, trained, specialized personnel
• Always use genuine Atlas Copco air dryer parts for preventive maintenance

The Atlas Copco Legacy

Atlas Copco stands as one of the world’s most respected and authoritative names in compressed air and industrial equipment. Understanding this legacy reinforces why choosing genuine Atlas Copco parts is essential for your operations.

A 150+ Year History of Innovation

Atlas Copco traces its origins to 1873, when the company was founded in Stockholm, Sweden. Originally supplying equipment to the Swedish railway industry, the company began manufacturing piston compressors in-house in 1904—marking the beginning of a century-long journey of compressed air innovation.

In 1956, the company adopted the name Atlas Copco, derived from the original “Atlas” name combined with that of its Belgian subsidiary, Compagnie Pneumatique Commerciale. This name change reflected the company’s evolving focus on pneumatic tools, compressors, and drilling equipment.

Global Leadership and Reach

Today, Atlas Copco operates across four business areas—Compressor Technique, Vacuum Technique, Industrial Technique, and Power Technique—supporting customers in approximately 180 countries. The company maintains over 50 factories worldwide and has sales companies in more than 50 countries, with distributors covering 85 countries and regions.

Unmatched Quality Standards

Atlas Copco’s compressor and dryer products are certified to deliver TÜV-certified Class 0 oil-free air—the highest standard of air purity. This certification, combined with ISO 8573-1 compliance, makes Atlas Copco the preferred choice for industries where air quality is critical: food and beverage, pharmaceuticals, electronics, healthcare, and more.

Atlas Copco’s Elektronikon® controller systems with optional PDP sensors offer tailor-made pressure dew point settings for specific applications, demonstrating the company’s commitment to providing customized, energy-efficient solutions.

Commitment to Service and Support

Atlas Copco provides dedicated service kits for preventive maintenance, ensuring that every component—from sensors to filters—meets the exact specifications of the original equipment. This commitment to genuine parts and professional service underpins the company’s reputation for reliability and long-term value.

Why Choose Us?

We are a professional one-stop supplier of Atlas Copco air compressor systems and genuine spare parts.

Our Credentials

• Over 10 Years of Experience: We bring more than a decade of specialized sales and maintenance expertise to every customer interaction. Our team understands the technical nuances of Atlas Copco equipment and can provide informed guidance on product selection, installation, and maintenance.
• Authorized Distributor: We are a dedicated supplier serving global industrial clients who value reliability and authenticity. We focus on delivering genuine, brand-new products together with reliable service, supporting customers in maintaining stable and efficient compressed air systems worldwide.
• Direct Sourcing from Atlas Copco (Shanghai) Trading Co., Ltd.: Every product we sell—including this PDP sensor maintenance kit—is sourced directly from Atlas Copco’s authorized entity in China. This ensures complete traceability and eliminates any risk of receiving counterfeit or non-genuine parts.
• Global Reach: We serve customers across multiple industries worldwide, providing cost-effective pre-sales and after-sales solutions that meet diverse operational requirements.

Our Mission

To become a globally trusted one-stop supplier of Atlas Copco air compressor systems, recognized for genuine products, professional service, and long-term partnership value.

What This Means for You

When you purchase the 1837085798 PDP Sensor Maintenance Kit from us, you receive:

• A 100% genuine, brand-new Atlas Copco part
• Complete kit with all three required components (sensor, O-ring, filter element)
• Original Atlas Copco packaging with clear product identification
• Competitive pricing at $1,000.00 excl. VAT
• Professional technical support before and after purchase
• 12-month manufacturer’s warranty covering design or production defects

FAQs

Q1: Why can’t I order 2901990978 anymore?

The part number 2901990978 has been officially discontinued by Atlas Copco and is no longer available. The replacement part number is 1837085798, which supersedes both 2901990978 and 1624896684. When you order 1837085798, you receive the latest-generation sensor kit that meets current Atlas Copco specifications.

Q2: How often should I replace the PDP sensor?

Atlas Copco recommends exchanging the dew point sensor annually because the calibration certificate is valid for only one year. The inline air filter in the sensor block should also be replaced once a year. This maintenance kit provides everything you need for this annual service.

Q3: Is this kit compatible with all Atlas Copco dryers?

This kit is designed for Atlas Copco air treatment equipment, including adsorption dryers (CD, CD+, CDX series) and CDUs (Compressed Dryer Units) that are equipped with PDP sensor systems. For specific compatibility with your dryer model, please consult your equipment’s instruction book or contact our technical support team.

Q4: What happens if I don’t replace the PDP sensor annually?

If you do not replace the PDP sensor annually, the calibration expires and the sensor may no longer provide accurate pressure dew point readings. This can lead to:

• Inefficient dryer regeneration cycles
• Increased energy consumption
• Potential air quality degradation
• Non-compliance with ISO 8573-1 air quality standards
• Voiding of warranty claims (if non-genuine parts are used)

Q5: How can I verify this is a genuine Atlas Copco part?

Every kit we supply comes with clear product identification, original Atlas Copco packaging, and full traceability back to Atlas Copco (Shanghai) Trading Co., Ltd. . The packaging displays the Atlas Copco brand logo, correct part number (1837085798), and model name. We invite you to inspect the packaging and components upon receipt—the build quality, branding, and documentation will confirm its authenticity.

Quality Assurance & Warranty

We supplythis Atlas Copco PDP Sensor Maintenance Kit with clear product identification and original Atlas Copco packaging.

Atlas Copco provides a comprehensive 12-month warranty covering bad design or production defects, giving buyers confidence in both performance and after-sales support.

Please note the following warranty exclusions:

• Misuse or improper fitting
• Normal wear and tear
• Use of spare parts other than Atlas Copco’s genuine spare parts will lead to cancellation of any warranty claims

Ready to Order?

The Atlas Copco 1837085798 PDP Sensor Maintenance Kit is in stock and ready for immediate shipment. Don’t compromise your dryer’s performance or your air quality with anything less than genuine Atlas Copco parts.

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