ND Series

ND Series Overview

The ND Series is built on Superior Sensor’s NimbleSense architecture, unifying differential and absolute pressure in a single product family so industrial systems needing multiple measurement types can be sourced, qualified, and integrated from one platform. Differential models support up to seven factory-calibrated pressure ranges per device, reducing sensor variants and simplifying inventory. Silicon gel protection on mid-pressure and absolute variants preserves accuracy and long-term stability at higher pressures, while a 2.25‑millisecond update rate and a −20°C to +85°C operating range meet the response speed and environmental demands of robotics, bioprocessing, clean rooms, and precision manufacturing.

ND Series Product Offerings

Common Device Features: 3.3V supply
Long-Term Stability is measured after first 12 months
Short-Term Error Band (STEB) is measured over 24 hours, after auto-zero

Common Specifications

Features Matrix

Evaluation and Accessories

Resources

Evaluation Software	Version	Date	Download
EB02 Evaluation Software (PRT-0279)	G	December 2025
EB01 Evaluation Software (PRT-0143)	E	February 2024

Drawings and CAD Files	Version	Date	Download
SM02 Package for all ND Series Sensors (IGS and STEP files)	A	March 2023
KP-ROR Package for Right Angle Adapters (STEP file)	A	February 2024

Download models in over 50 formats

Catalogs and Compliance Documentation	Version	Date	Download
Product Ordering Guide (PL-0001)	X	May 2025
NimbleSense Capabilities Brochure (MB-0001)	B	April 2023
Product Catalog (MB-0004)	F	May 2025
Certificate of RoHS Compliance (CS-0001)	A	May 2019
Statement of REACH-253 Compliance (CS-0002)	E	May 2026
Statement on Use of Conflict Minerals (CS-0003)	A	May 2019
Certificate of California Proposition 65 Compliance (CS-0006)	A	May 2019

ND Series Frequently Asked Questions

What is the difference between the ND Series low-pressure differential, mid-pressure differential, and absolute pressure models?

The three ND Series variants share the NimbleSense architecture, −20°C to +85°C temperature range, 2.25‑millisecond update rate, and common I²C and SPI interfaces, but serve different measurement needs. Low‑pressure differential models cover ±62.5 pascals to ±7.5 kPa with up to seven configurable ranges per device, ideal for clean room cascade monitoring, bioprocessing filter integrity, and other low‑differential process applications. Mid‑pressure differential models span ±0.5 PSI to ±150 PSI and add silicon gel protection, making them well‑suited for pneumatic systems, leak detection, and industrial process control. Absolute pressure models cover 0 to 150 PSIA with silicon gel protection and are used where pressure must be measured against a fixed reference, such as vessel pressure monitoring, barometric altitude reference, and UAV navigation.

What is the difference between the ND Series and the HV Series for low-pressure applications?

Both series share the NimbleSense architecture but are optimized for different environments. The HV Series is temperature‑compensated from 0°C to 50°C, supports up to eight pressure ranges per device, and includes digital filtering tuned for fan and blower noise in HVAC systems, with a 9‑millisecond update rate suited to building automation. The ND Series is temperature‑compensated from −20°C to +85°C with a 2.25‑millisecond update rate, making it the better choice for industrial applications that demand faster response, wider temperature coverage, or environmental conditions beyond what HVAC‑grade sensors are rated to handle.

How many pressure ranges does the ND Series support in a single device?

Low-pressure and mid-pressure differential ND models support up to seven configurable pressure ranges per device, selectable over the digital interface without a hardware change. Absolute pressure models are fixed-range devices, with each model covering a specific full-scale pressure. Across the ND Series, coverage spans from ±62.5 pascals on the lowest-range low-pressure differential device to 150 PSIA on the highest-range absolute model, all sharing a common architecture and integration logic.

What does the ND Series integrated pressure switch do, and how is it different from software-based threshold monitoring?

The ND Series three-mode integrated pressure switch provides a direct hardware output the moment system pressure crosses a programmed threshold, eliminating the round-trip delay through a remote controller. In bioprocessing alarms, clean room pressure breach detection, and leak detection pass/fail systems, this hardware switch removes the control loop latency introduced by software-based threshold monitoring. Three configurable modes let the switch output match different alarm and control response patterns without additional external logic.

Which ND Series models include silicon gel protection, and what does it protect against?

Silicon gel protection is included on all mid-pressure differential and absolute ND Series models, shielding the piezoresistive sensing element from condensation, humidity, and mild chemical exposure common in industrial environments where these measurement types are deployed. Low-pressure differential models do not include silicon gel protection, as they are typically used in controlled settings such as clean rooms and laboratory equipment where direct exposure to moisture or chemicals is limited. For applications involving direct contact with harsh media, additional application-level sealing should be implemented.

Can ND Series differential and absolute models be used together in the same system?

Yes, and this is a common deployment pattern in complex industrial systems. Bioprocessing equipment often requires differential pressure measurement across filters and membranes alongside absolute pressure monitoring of vessel headspace, while aviation and UAV platforms may need both differential airspeed measurement and absolute barometric altitude reference. All ND Series variants share common I²C and SPI interfaces and the same underlying NimbleSense integration architecture, so combining differential and absolute models in a single system does not require separate driver development or distinct integration logic for each measurement type.

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