Ansi Engineers

Baumer Group is a Swiss‑based global manufacturer of precision sensors, encoders, measurement instruments and vision systems designed for industrial automation, machine building, and process control applications. The company has over 70 years of experience and is known for premium quality, precision engineering and robust products used across diverse industries such as automotive, packaging, robotics, food & beverage, semiconductor, steel, energy and more.

Baumer’s products are grouped into multiple major categories covering sensing, measurement, motion control, identification and imaging technologies:

✔ Proximity & Presence Sensors — Detect metal and non‑metal objects without contact (inductive, capacitive, magnetic).
✔ Photoelectric Sensors — Non‑contact object detection with diffuse, retro‑reflective and through‑beam variants.
✔ Ultrasonic Sensors — Long‑range object detection independent of surface properties.
✔ Label & Light‑Band Sensors — For precise edge/label detection in packaging and printed materials.

✔ Laser & Ultrasonic Distance Sensors — Distance measurement up to tens of meters with high resolution.
✔ Linear & Measuring Wheel Encoders — Precise displacement measurement with durable designs.
✔ Radar & Inductive Distance Sensors — For robust distance monitoring in harsh environments.

✔ Rotary Encoders (Incremental & Absolute) — Angular position and speed feedback for motors and automation systems.
✔ HeavyDuty Encoders — Robust feedback solutions for cranes, mining, wind turbines, etc.
✔ Inclination & Acceleration Sensors — Angle and vibration measurement for mobile and structural applications.

✔ Pressure Sensors & Pressure Transmitters — Precision pressure measurement for liquids and gases.
✔ Temperature Sensors & Transmitters — Industrial temperature measurement solutions.
✔ Level Sensors — Continuous and point‑level detection for liquids and solids.
✔ Flow Sensors — Flow monitoring for process liquids and gases.
✔ Liquid Analysis & Conductivity Sensors — Monitoring conductivity, phase changes and contamination.

✔ Smart Vision Sensors — Integrated imaging and processing for object recognition and inspection.
✔ Industrial Cameras & Vision Systems — High‑speed image acquisition for quality inspection, robotics and process monitoring.
✔ Barcode & Code Readers — OCR/OCV systems for text, barcode and 2D code reading in automation lines.

✔ Displays & Counters — For showing process values, counts, speeds and diagnostics.
✔ Cables, Mounts & Connectors — System accessories for reliable installation.
✔ Calibration & Configuration Tools — For sensor setup and integration.

✔ High Precision & Accuracy: Engineered for stable, repeatable measurement in demanding industrial environments.
✔ Robust Industrial Design: Many products feature high IP protection (e.g., IP67/68) and rugged housings.
✔ Smart Connectivity: IO‑Link, analogue/digital outputs and industry‑ready protocols available on many sensors.

ABB differential pressure transmitters are precision instruments that measure the difference in pressure between two points in a process (such as across a filter, valve, or pump) and convert that difference into a standard electrical signal (commonly 4–20 mA with HART or digital communications). They are widely used in industrial process control, safety measurement, flow calculation, level measurement, and pneumatic/hydraulic system monitoring.
�� Key Features & Technology
✔ Advanced Measurement Technology: Some models (e.g., 266MST/266MDT) use multisensor technology to compensate for temperature and absolute pressure, improving accuracy and stability.
✔ High Accuracy: Typical base accuracy can be ±0.04 %–±0.06 % of calibrated span, suitable for demanding industrial process monitoring.
✔ Flexible Outputs: Standard outputs include 4–20 mA with HART, and many models support PROFIBUS PA, FOUNDATION Fieldbus and WirelessHART communication for advanced automation integration.
✔ Rugged Construction: Designed for industrial environments with durable housings and optional diaphragm seals for aggressive or high‑temperature media.
✔ Innovative TTG Configuration: “Through‑The‑Glass” local configuration allows setup without opening the transmitter housing, saving time and improving safety.
✔ Safety & Reliability: Many models meet SIL2/SIL3 functional safety requirements as per IEC61508, making them suitable for critical control loops.
�� Typical Applications
• Process Flow Measurement: Differential pressure across orifice plates, venturi tubes, and flow elements.
• Filter and Strainer Monitoring: Pressure drop monitoring to indicate filter clogging.
• Level Measurement: Differential pressure control in closed tanks and vessels.
• Hydraulic & Pneumatic Systems: Pressure differential across components for control and diagnostics.
• Steam & Gas Flow: Used for energy and mass flow calculations in steam/gas lines.
�� How They Work
 
ABB differential transmitters compare pressure at two points — high side and low side — and calculate the difference. This differential signal is processed by internal circuitry and transmitted as a current or digital signal that controllers, PLCs or DCS systems can interpret for control and monitoring. They often include temperature compensation and diagnostic functions for better long‑term stability and performance
Example ABB Differential Pressure Transmitters
• ABB 266DSH Differential Pressure Transmitter – A high‑performance ABB transmitter designed for accurate differential pressure measurement with advanced digital configuration and stability across a wide range of process conditions.
• ABB 264DRFSRRRA1/B2M3 Differential Pressure Transmitter – Industrial differential pressure transmitter suitable for process automation systems; delivers reliable pressure differential signals to control systems.
• ABB Differential Pressure Transmitters – A general ABB differential pressure transmitter listing (multiple models possible) used for various process monitoring and control tasks.
• ABB 266DRHESRRST8 Differential Pressure Transmitter – A premium differential pressure transmitter (266DRH series) with advanced features and communications suitable for demanding industrial environments.
• ABB PDT‑9526 Differential Pressure Transmitter (Used)

Honeywell SmartLine STD Series Differential Pressure Transmitters are high‑performance industrial instruments designed for accurate, reliable, and continuous measurement of differential pressure in process control applications. These smart transmitters use advanced piezoresistive sensing technology with automatic temperature and static pressure compensation to deliver highly precise outputs with long‑term stability in demanding industrial environments such as chemical, oil & gas, power, water and wastewater, and manufacturing plants.

SmartLine STD Series models (e.g., STD700, STD725, STD735 and STD800) are part of Honeywell’s SmartLine family and offer modular designs, robust construction, and comprehensive diagnostic capabilities with support for HART, FOUNDATION Fieldbus, DE and 4‑20 mA outputs. They are engineered to meet modern automation requirements including SIL safety standards and optional explosion‑proof approvals.

✔ High accuracy: Better than ±0.05 % of calibrated span on many models.
✔ Long‑term stability: Typical drift as low as 0.02 % of URL per year over 10 years.
✔ Fast response times: As quick as 90–100 ms for real‑time control.

✔ Honeywell uses high‑precision piezoresistive sensors with built‑in static pressure and temperature compensation for stable, accurate readings across process conditions.
✔ Wide pressure range: From small differentials (in‑H₂O/mbar) to high pressures (up to hundreds of bar).

✔ Supports HART, DE (Digitally Enhanced), FOUNDATION Fieldbus, and standard 4‑20 mA outputs for easy integration with PLC/DCS systems.
✔ Local display and configuration options are available on many variants.

✔ Built‑in self‑diagnostics detect sensor faults and process issues.
✔ Modular design allows easy field maintenance and upgrades without full disassembly.
✔ Meets SIL 2/3 safety standards and offers dual‑seal designs suitable for hazardous areas.

✔ Stainless steel wetted parts and robust housing resist corrosion and overpressure.
✔ Available with explosion‑proof/IS approvals for safe operation in hazardous environments.

🔹 Level Measurement – Hydrostatic level indication in closed tanks and vessels via differential pressure.
🔹 Filter/Strainer Monitoring – Monitor pressure drop across filters to determine clogging condition.
🔹 Flow Measurement – Differential pressure across primary elements (orifice plates, Venturi) for flow calculation.
🔹 Process Control – Differential pressure feedback in critical process loops for automation systems.Honeywell STD725 Differential Pressure Transmitter – SmartLine STD725 model with high accuracy, stability and diagnostic functions for advanced applications.

• Honeywell SmartLine STD800 Differential Pressure Transmitter – Part of the SmartLine STD800 series offering excellent performance over a broad measuring range.

✔ Industry‑leading precision and stability with integrated temperature and static pressure compensation.
✔ Smart diagnostics and communication for improved uptime and easier integration into automated systems.

Pressure Transducer are used to measure the relative (gauge) and absolute pressures in liquids or gases. The measuring device for the transmitter is a piezo-resistive element or a thin-film strain gauge. The pressure is converted into an electrical signal.


Differential pressure transmitter for liquid

The DPTL is made for differential pressure detection in liquids for air-conditioning, heating and water systems. The equipment can withstand mildly corrosive substances and liquids.

Applications

PTL and DPTL series pressure transmitters are suitable for measuring pressure in neutral fluids and non-aggressive gases. Also compatible with refrigerants. They are suitable for all kind of tasks in air-conditioning, heating and water systems

A pressure transducer, often called a pressure transmitter, is a transducer that converts pressure into an analog electrical signal. Although there are various types of pressure transducers, one of the most common is the strain-gage base transducer.
The conversion of pressure into an electrical signal is achieved by the physical deformation of strain gages which are bonded into the diaphragm of the pressure transducer and wired into a wheatstone bridge configuration. Pressure applied to the pressure transducer produces a deflection of the diaphragm which introduces strain to the gages. The strain will produce an electrical resistance change proportional to the pressure.

Yokogawa Pressure Transmitters are advanced industrial instruments designed for precise measurement of gauge, absolute, and differential pressure in liquid and gas applications. Built with Yokogawa’s renowned digital sensing technology, these transmitters deliver exceptional accuracy, long-term stability, and reliable performance, even in the most demanding process environments.

Known for their durability and consistency, Yokogawa pressure transmitters are widely used in oil & gas, power, chemical, water, and process industries.

• High accuracy with excellent long-term stability

• Digital sensor technology for reliable measurements

• Measures gauge, absolute, and differential pressure

• Output signal: 4–20 mA with HART communication

• Fast response time for dynamic processes

• Robust stainless-steel construction

• High resistance to vibration, temperature changes, and harsh conditions

• Low maintenance and long service life

• Liquids and gases

• Water, steam, oil, air

• Non-corrosive and compatible process fluids (as per model & material)

• Oil & gas production and refining

• Chemical and petrochemical plants

• Power plants and boiler systems

• Water & wastewater treatment plants

• Flow measurement with primary elements

• Tank level and pressure monitoring

• Ensures stable and accurate process control

• Reliable operation in harsh industrial environments

• Easy integration with PLC, DCS, and control systems

• Trusted Yokogawa brand quality and global support

Yokogawa EJA-E / EJX-A series pressure transmitters
(model selection depends on pressure range, process connection, and application)

Siemens SITRANS P DS III Transmitters
Siemens’ SITRANS P DS III series includes digital pressure transmitters capable of measuring gauge, absolute and differential pressure, as well as derived variables like flow and level with differential pressure input. These units are widely used in process industries such as oil & gas, chemical, power, water/wastewater, HVAC and manufacturing. They combine field reliability with advanced digital diagnostics.

Key Features

• Differential pressure: capable of precise differential measurement — often used with primary elements for flow measurement or standalone pressure difference monitoring.

• Wide measuring ranges: spans from very low pressure (e.g., ~1 mbar) up to high values depending on configuration (hundreds of bar with remote seals and diaphragm options).

• Outputs & communication: Standard 4–20 mA analog with HART, and optional PROFIBUS PA or Foundation Fieldbus for digital integration.

• Diagnostics: Built‑in diagnostic functions complying with NAMUR NE107, enabling advanced process health monitoring.

• Safety & approvals: Designed for SIL 2/SIL 3, ATEX, IECEx and other global standards for use in hazardous areas.

• Remote safety handling: Some models support remote configuration and validation to reduce on‑site intervention.

📌 Typical industrial model examples (not exhaustive):

• SITRANS P320 differential pressure/flow transmitter — good performance for most industrial processes.

• SITRANS P420 with extended diagnostics and digital features for complex systems.

These devices often use piezo‑resistive sensors and sealed diaphragms to sense differential pressure and convert the signal to an electrical output proportional to the pressure difference.

Here are some smaller sensors and differential pressure monitoring devices that are Siemens‑branded or part of modular pressure instrument portfolios:

**• ** — Compact differential pressure sensor (~0–100 Pa range) suitable for HVAC, duct monitoring and light industrial air pressure applications.

**• ** — Differential pressure monitor for duct or filter monitoring (~50–500 Pa), offering visual indication and simple monitoring.

**• ** — Larger range (~0–1000 Pa) differential pressure sensor for airflow or cleanroom pressure control.

**• ** — Industrial‑grade differential transmitter suitable for broader process measurement with more rugged design and higher precision than simple HVAC sensors.

**• ** — General pressure sensor from the QBM series useful in HVAC and light automation tasks.

**• ** — Generic transmitter often used for HVAC pressure or similar process signals.

These products suit light to medium duty differential pressure tasks, indoor air quality (IAQ) ducts, cleanrooms, HVAC systems and smaller control loops.

✔ Industrial process control (chemical, petrochemical, refining) for fluid and gas differential pressure monitoring.
✔ Flow measurement (differential pressure across orifice/primary elements).
✔ Level calculation in closed vessels using differential pressure.

Brand: Rosemount (Emerson)
Product Type: Differential Pressure (DP) Transmitters
Condition: New & Original
Country of Origin: USA / Global Emerson Network

Rosemount Differential Pressure Transmitters from Emerson are high-performance smart instruments engineered for reliable and accurate measurement of differential pressure in process automation systems. These transmitters utilize advanced Coplanar™ sensor technology and support multiple communication protocols such as 4-20 mA with HART, WirelessHART, and FOUNDATION Fieldbus for seamless integration into modern control systems. They deliver long-term stability, robust construction, and superior diagnostics for demanding industrial environments.

• 3051S2CD1A2E12A1AM5 – DP Range: –25 to 25 inH₂O (small range DP)

• 3051S2CD2A2E12A1AM5 – DP Range: –250 to 250 inH₂O

• 3051S2CD3A2E12A1AM5 – DP Range: –1000 to 1000 inH₂O

• 3051S2CD4A2E12A1AM5 – DP Range: –300 to 300 psi

• 3051S2CD5A2E12A1AM5 – DP Range: –2000 to 2000 psi

• 3051S2CD5A3F13F1BA01E1M5P9Q4Q8Q15 – High static DP version for up to 15,000 psi working pressure

• 3051CD0A02A1AH2M5 – Small span DP (–3 to 3 inH₂O)

• 3051CD1A22A1AM5 – Mid-range DP (–25 to 25 inH₂O)

• 3051CD2A22A1AM5 – Higher span DP (–250 to 250 inH₂O)

(Other configurations, pressure ranges & output options available on request)

• Smart DP measurement with high accuracy and long-term stability.

• Supports 4-20 mA with HART, WirelessHART, FOUNDATION Fieldbus protocols.

• Rugged industrial design with robust wetted parts (316L SST, Hastelloy, etc.).

• Optional LCD display and advanced diagnostics.

• SIL certified for safety instrumented systems and hazardous areas (model dependent).

• Output Signal: 4-20 mA + Digital Protocol

• Pressure Ranges: From very low DP (inH₂O) to high spans (psi)

• Process Wetted Materials: 316L Stainless Steel, Alloy C-276, Tantalum

• Communication: HART / WirelessHART / Fieldbus

• Diagnostics: Loop Integrity, Plugged Line, Process Alerts

• Protection: Suitable for harsh industrial environments

• Differential pressure measurement for flow, level, filter monitoring

• Process control in chemical, oil & gas, power plants, water treatment

• Industrial automation, HVAC systems, compressors & pumps

📞 Contact us for model-wise pricing, detailed datasheets, configuration help, and best delivery timelines.
We also provide complete plant process automation solutions.