EMERSON 1X00625H01 Product Description

I. Product Overview

The EMERSON 1X00625H01 is a highly reliable analog input module of the 1X series of the former Westinghouse (now Emerson) Ovation DCS system, specially designed for continuous monitoring and high-precision signal acquisition in critical process industrial sites. As the core acquisition component of the Ovation I/O subsystem, it is responsible for accurately converting analog signals from on-site sensors (thermocouples, thermistors, 4–20mA transmitters, etc.) into digital signals and uploading them to the controller. It features high resolution, strong anti-interference capability, wide temperature operation range, and online diagnostic capabilities. It is widely used in industrial scenarios such as power, chemical, oil and gas, and metallurgy that have strict requirements for process parameter measurement accuracy, stability, and continuity. It is a core general-purpose module for analog data acquisition in the Ovation DCS system.

II. Core Functions

1. Compatibility with multiple types of signals, high-precision acquisition and conversion

Supports multiple types of analog signal inputs, covering 4–20mA DC current signals, 1–5V DC voltage signals, thermocouples (K, S, T, E, J, R, B, N types), thermistors (PT100, PT1000, Cu50), and other mainstream industrial sensor signals. It is suitable for process parameter acquisition requirements such as temperature, pressure, level, flow, vibration, etc. Using a 16-bit high-precision ADC converter, it has a fast sampling rate and high conversion accuracy. The current/voltage signal measurement accuracy is ±0.1% FS, the cold junction compensation error for thermocouples is ±1℃ (0–50℃ range), the measurement accuracy for thermistors is ±0.05℃, and it can accurately capture weak signal changes, ensuring the accuracy of process monitoring and control.

2. Multiple channels for independent acquisition, strong isolation against interference

Integrated with 8 independent analog input channels, each channel is electrically isolated and does not interfere with each other. It can simultaneously collect 8 different types or the same type of on-site signals. The isolation voltage between channels reaches 2500V AC/1min, effectively blocking channel crosstalk, ground potential difference, and common-mode interference. The core circuit adopts dual protection design of photoelectric isolation + electromagnetic shielding, combined with RC filtering and software digital filtering, which can filter out high-frequency noise, pulse interference, and power supply ripple. It is suitable for strong electromagnetic interference sites with dense frequency converters, motors, and transformers, ensuring stable and reliable signal acquisition. 

3. Wide temperature range adaptation, stable operation in harsh conditions

Uses industrial-grade wide-temperature components, with a working temperature range covering **-40℃ ~ +70℃, and a storage temperature range of - 55℃ ~ +125℃. It can withstand high and low temperature shocks and temperature fluctuations. The power supply adopts a 24VDC (±15%) wide-voltage design, supports reverse polarity protection, overvoltage and overcurrent protection, and can resist voltage fluctuations and instantaneous surges in the site. The surface of the circuit board is coated with three-proof coating (anti-moisture, dust-proof, and corrosion-proof), with anti-vibration and anti-shock capabilities meeting IEC 60068-2-6/2-27 standards, suitable for long-term continuous operation in humid, dusty, salt-sprayed, and vibrating harsh industrial sites.

4. Online intelligent diagnosis, convenient and efficient operation and maintenance

The panel is equipped with LED indicators for power supply, operation, fault, communication, and channel status, which can directly display the module's operating status, communication link health, and abnormal signals (such as disconnection, over-range, short circuit) on-site inspection without tools, allowing for quick problem identification. The system end supports remote online diagnosis, real-time monitoring of module temperature, power supply voltage, ADC status, channel signal quality, communication bit error rate, and hardware health parameters, automatically generating fault alarm codes, event logs, and channel abnormal reports, accurately locating faulty channels and causes, significantly reducing troubleshooting time, and supporting predictive maintenance. 5. Hot-swappable + standardized design, easy maintenance, flexible compatibility

Adopting the standard Ovation slot-based modular structure, it supports online hot-swapping. During maintenance, there is no need to shut down the DCS system, which does not affect the normal operation of other I/O modules and control circuits, reducing planned downtime and lowering operation and maintenance costs. It is compatible with Ovation standard cabinet racks, supporting high-density arrangement, with high space utilization; it is seamlessly compatible with Ovation 1X series controllers, redundant modules, and other I/O cards. Parameter configuration, channel calibration, and program download can all be operated uniformly through the Ovation engineer station, without the need for additional tools. Project renovation, expansion, and spare parts replacement are convenient and efficient.

6. Compliant with safety standards, reliable operation

Complies with CE, UL 508, CSA, RoHS and other international certifications, has industrial-grade EMC electromagnetic compatibility performance, can resist complex electromagnetic environment interference; uses military-grade industrial components, undergoes 72-hour rigorous aging tests and multiple quality inspections, with a long average fault-free time (MTBF), suitable for long-term continuous operation in industrial sites, ensuring the stability and security of data acquisition.

III. Technical Parameters

Model: 1X00625H01

Brand: Emerson (formerly Westinghouse)

Series: Ovation DCS 1X Series Analog Input Module

Number of channels: 8 independent analog input channels

Input signal types: 4–20mA DC, 1–5V DC, thermocouple (K/S/T/E/J/R/B/N), thermoresistor (PT100/PT1000/Cu50)

Resolution: 16-bit ADC

Measurement accuracy: Current/voltage ±0.1% FS; thermocouple ±1℃ (cold junction compensation); thermoresistor ±0.05℃

Sampling rate: 100ms per channel (configurable via software)

Channel isolation: 2500V AC/1min (channel-to-channel, channel - backplane)

Power supply: 24VDC (±15%), power consumption ≤ 8W

Operating temperature: -40℃ ~ +70℃

Storage temperature: -55℃ ~ +125℃

Environmental humidity: 5% ~ 95% RH (no condensation)

Anti-vibration / shock: Compliant with IEC 60068-2-6/2-27 standards

Electromagnetic compatibility: CE, UL 508, CSA, RoHS certification

Physical size: Standard Ovation rack specification

Weight: Approximately 1.2kg

Warranty: 12 months original warranty

IV. Product Features

1. Multi-signal compatibility, wide adaptability

Supports four major types of analog signals: current, voltage, thermocouple, and thermoresistor. Covers 90% of the process parameter acquisition needs in industrial sites, without the need for additional conversion modules, simplifying the system architecture and reducing procurement and maintenance costs.

2. High-precision acquisition, reliable data

16-bit high-resolution ADC + precise compensation algorithm, high measurement accuracy, good signal stability, can accurately reflect the slight changes in process parameters, providing reliable data support for control loops, improving process control accuracy.

3. Strong isolation and anti-interference, strong stability

Complete isolation between channels + photoelectric shielding + multiple filtering design, outstanding anti-interference ability, suitable for strong electromagnetic interference and harsh site conditions, long-term operation without signal drift or data jumps, ensuring continuous data acquisition.

4. Wide temperature three-proof design, strong environmental adaptability Wide temperature operating range + three-proof coating + anti-vibration structure, capable of withstanding extreme conditions such as high and low temperatures, humidity, dust, salt fog, and vibration, suitable for various complex industrial sites, with a long service life.

5. Intelligent operation and maintenance design, reducing the risk of downtime

Visual indicator lights + remote online diagnosis, quick fault location; hot-swappable design supports non-stop replacement, simple and efficient daily maintenance, significantly reducing the probability of fault downtime, ensuring long-term system operation.

6. Standardized compatibility, flexible expansion

Compatible with Ovation series universal cabinets and all types of control / redundancy modules, seamlessly compatible with the same series of equipment, unified configuration and debugging, flexible and efficient project expansion and renovation, protecting user investment.

5. Application scope

1. Power industry

Main control system I/O cabinets for thermal power plants, hydropower plants, nuclear power plants, used for boiler temperature / pressure / level, turbine vibration / speed, generator winding temperature, auxiliary equipment parameters, etc. analog signal collection, suitable for high-temperature, strong electromagnetic interference, and high-reliability power station environments, ensuring real-time monitoring of unit operating parameters.

2. Chemical industry

I/O stations for petroleum refining, fine chemicals, coal chemical, fertilizer production facilities, used for reactor temperature / pressure, distillation tower level / flow, heating furnace furnace temperature, compressor vibration / exhaust pressure, etc. key parameter collection, can operate stably in corrosive gas, humid, explosion-proof environments, ensuring precise monitoring of production process parameters.

3. Oil and gas industry

I/O systems for onshore oil and gas stations, field extraction platforms, long-distance pipelines, LNG receiving stations, used for storage tank level / temperature / pressure, pipeline pressure / flow, compressor temperature / vibration, environmental parameters, etc. signal collection, able to withstand harsh environments such as sandstorms, salt fog, extreme temperature differences, vibration impacts, ensuring stable monitoring of oil and gas production and transportation parameters.

4. Metallurgical industry

I/O units for steel, non-ferrous metal smelting blast furnaces, heating furnaces, rolling production lines, continuous casting equipment, used for blast furnace top temperature / pressure, hot air furnace temperature, rolling temperature / tension, cooling water flow / temperature, casting billet temperature, etc. parameter collection, suitable for on-site dust, high-temperature radiation, strong electromagnetic interference conditions, ensuring precise collection of metallurgical process parameters.

5. Other industrial scenarios

Water treatment plants for water quality parameters (pH, turbidity, dissolved oxygen), dosing flow, water pool level collection; cement manufacturing for kiln furnace temperature, mill vibration, preheater pressure collection; paper, pharmaceutical production lines for temperature, pressure, flow, level collection; environmental temperature, equipment temperature, medium pressure collection in new energy power stations, suitable for various industrial scenarios requiring high-precision, high-reliability analog signal collection.

6. Installation and maintenance

1. Installation

Select standard free slots of Ovation cabinets, reserve ventilation space (≥5cm), away from high-power frequency converters, motors, transformers and other strong interference equipment. Wear anti-static wristbands, push the module steadily to ensure reliable contact of the backplane bus, lock the panel screws. When installing multiple modules densely, keep the module spacing uniform to ensure heat dissipation and avoid high temperature affecting the accuracy of collection.

2. Wiring

Use shielded twisted pair to connect the module with on-site sensors, separate current / voltage signals, thermal couple / thermal resistance signals, single-ended reliable grounding of the shield layer. Distinguish positive and negative poles of signals and compensation lines (special for thermal couple / thermal resistance), moderately tighten the terminals, avoid loosening and heating. Separate power cables and strong current cables (spacing ≥30cm), reduce electromagnetic interference. After wiring, check the lines to ensure no short circuits, wrong connections, or polarity reversal problems, test the channel signals are normal before putting into operation.

3. Daily maintenance Regular (weekly) inspection of indicator light status, module appearance and terminal connections, checking for overheating, loosening, corrosion, and dust accumulation; daily checking of module temperature, power voltage, channel signal quality and fault records through system diagnostic logs; cleaning surface dust with a dry soft cloth or low-pressure clean air every month, shortening the cleaning cycle in high-dust/high-humidity environments (every two weeks), and prohibiting the use of corrosive liquids for wiping; quarterly inspection of the tightness of terminal connections and the reliability of the shielding layer grounding, avoiding loose connections or poor grounding that may cause interference.

4. Fault Handling

Channel signal abnormalities (out of range / jump): Check indicator lights, sensor connections, shielding grounding, signal type configuration, investigate surrounding interference sources, rewire or replace shielding cables, and re-calibrate the channel when necessary;

Communication failure: Check module communication indicator lights, backplane bus contact, communication cable connections, reinsert the module or replace the communication cables, investigate the status of the bus terminal;

Module failure (red light alarm): Locate the fault by combining system alarm codes (such as overheating, hardware damage, channel short circuit), perform hot-swapping replacement, the new module is automatically recognized by the system, the configuration parameters and calibration channels are set, and it is put into operation, the faulty module is stored in an anti-static sealed container, and sent to the factory for repair.

VII. Order Information

Product Model: 1X00625H01

Brand: Emerson 

Series： Ovation DCS 1X Series

Product Type： 8-channel high-precision analog input module

Function： Collection of various types of analog signals， 16-bit high-precision conversion， 8 independent isolation， online intelligent diagnosis， hot-swappable maintenance

Compatible System： Ovation DCS system (compatible with 3.7 and above versions)

Packaging： Factory anti-static sealed packaging， including installation manual， certificate of conformity， wiring accessories， warranty card

Warranty： 12-month original warranty， provide 7×24-hour technical support and after-sales maintenance services