Honeywell UDA2182-PH1-NN2-NN-N-00C0-EE | Dual Analyzer | pH/ORP Measurement

Description

Honeywell UDA2182-PH1-NN2-NN-N-00C0-EE | Dual Input Analytical Analyzer

Key Technical Specifications

The model-selection guide specifically maps PH1 to the pH/ORP input board, part 51453313-501, while NN2 means that Channel 2 has no input. The NN selection means no additional analog output or relay board.

UDA2182-PH1-NN2-NN-N-00C0-EE

Product Introduction

The Honeywell UDA2182-PH1-NN2-NN-N-00C0-EE is a configured dual-input analytical analyzer intended for monitoring and control of liquid-process analytical variables. In this particular configuration, Channel 1 is equipped for pH/ORP measurement, while Channel 2 is intentionally unpopulated. The analyzer’s standard configuration includes two 4–20 mA outputs and two alarm relays.

This configuration is relevant to water-treatment and process-chemistry applications where a dedicated pH/ORP measurement is required without installing a second analytical input. Honeywell lists applications including power-generation water quality, wastewater treatment, pure-water preparation, food and dairy processing, and neutralization processes.

Engineering Pain Point

The main procurement risk with this analyzer is configuration mismatch, not simply identifying the family. A generic may have conductivity, dissolved oxygen, or a second pH input, while this exact configuration has only the PH1 input installed. Replacing it with a different option can therefore leave the existing sensor wiring incompatible with the installed input electronics. Honeywell’s model-selection guide assigns different input-board part numbers to pH, conductivity, and dissolved-oxygen configurations.

Typical Applications

• Boiler and power-plant water treatment: pH monitoring in feedwater, condensate, and related treatment systems.
• Wastewater treatment: continuous pH/ORP measurement for process control and neutralization.
• Pure-water systems: pH monitoring where analytical water quality is tightly controlled.
• Chemical neutralization: process measurement feeding alarm or analog-control systems.

Honeywell specifically identifies power water-quality control, wastewater influent/effluent, pure-water preparation, food and dairy applications, and neutralization among application areas.

Technical Pitfalls to Avoid

1. Do not substitute a generic without checking the input code. PH1 specifies the pH/ORP input board; CC1, DM1, and DB1 represent different analytical inputs.
2. Do not assume Channel 2 is available. NN2 explicitly specifies no second input in this configuration.
3. Check the actual sensor type before commissioning. pH and ORP measurements use different sensor technologies and calibration procedures even though Honeywell groups them under the PH1 input selection.
4. Do not assume additional relay or analog-output capacity. NN means the optional additional analog output/relay board is not selected. The analyzer’s standard two 4–20 mA outputs and two alarm relays remain part of the basic unit.
5. Check communication requirements before ordering. The N communication selection specifies no communications option in the ordering guide. Do not assume a particular Modbus or other digital communication interface merely because another configuration supports it.
6. Verify the exact suffix against the nameplate. The complete configuration string is more informative than the base designation when replacing an installed analyzer.

Related Products

• Honeywell -PH2 — configuration using a pH/ORP input on Channel 2; useful when a second analytical channel is required.
• Honeywell -CC1 — configuration using a contacting-conductivity input on Channel 1 rather than pH/ORP.
• Honeywell -DM1 — configuration for dissolved oxygen measurement in ppm range.
• Honeywell -DB1 — configuration for dissolved oxygen measurement in ppb range.
• 51453313-501 — UDA pH input board corresponding to the PH1 selection.
• 51453316-501 — UDA conductivity input board used by the CC configuration.
• 51453319-501 — UDA dissolved-oxygen ppm input board.
• 51453319-502 — UDA dissolved-oxygen ppb input board.
• 51453328-501 — Optional UDA additional analog-output and relay board associated with the C3 selection.

Procurement Note

For a replacement UDA2182-PH1-NN2-NN-N-00C0-EE, specify the complete configuration code, not simply “Honeywell .” The critical matching points are the PH1 input, unpopulated NN2 second channel, NN additional-output selection, N communications selection, mounting/documentation/certification options, PID setting, and language package.

Before installation, compare the analyzer nameplate with the existing purchase specification and confirm the installed pH/ORP sensor, input board 51453313-501, analog-output requirements, alarm wiring, supply requirements, and communications expectations. Honeywell’s own documentation confirms the ‘s modular configuration architecture, making the full order code important for a like-for-like replacement.