Honeywell 51400756-100 (TDC 3000 Operator Diaphragm Keyboard)
June 01, 2026

Honeywell 51400756-100 (TDC 3000 Operator Diaphragm Keyboard)

Product Introduction 51400756-100 is an operator membrane keyboard of Honeywell TDC 3000/TPS system. It is a dedicated human-machine interface device for universal operation stations (US/GUS), used for process monitoring, parameter setting, alarm confirmation and system operation. It is an essential input terminal for the daily operation of TDC 3000.

Description

Model Explanation

51400756-100: Honeywell part number (without delimiter, i.e. 51400756100)

51400756 = TDC 3000 Operator Diaphragm Keyboard Series

100 = Standard layout, splash-proof diaphragm, industrial-grade temperature version

Component Type: Operator Keyboard Assembly

Compatible Equipment: TDC 3000 Universal Operator Station (US), Enhanced Micro TDC 3000 Operator Station Technical Specifications

Button type: Polyester film (Membrane) flat buttons, splash-proof and resistant to chemical corrosion

Button layout: Special industrial layout, including process control keys, alarm keys, function keys, and numeric keys

Interface: Special keyboard interface (compatible with US SIO card), supports hot plugging

Power supply: 5 VDC (powered by the operation station), power consumption ≤ 5 W

Operating temperature: 0°C ~ +55°C

Storage temperature: -40°C ~ +70°C

Humidity: 0% ~ 95% RH (no condensation)

Size: Approximately 320 mm × 210 mm × 50 mm

Weight: Approximately 1.1 kg

Certifications: CE, UL, CSA, industrial environment certification

Interface and configuration

Connection method: Special flat cable connected to the internal keyboard interface board of the operation station

Status indication: Power LED, button response indicator light

Installation method: Embedded installation on the operation station panel or placed on the desktop

Compatibility: Direct replacement of the old operator keyboard, compatible with the full version US/GUS station of TDC 3000

Protection level: Frontal IP65 (splash-proof, dust-proof), suitable for harsh industrial environments Core function

Process monitoring operation: One-click invocation of flowcharts, trend charts, alarm screens, switching of control loop display, supporting multi-window operation.

Parameter setting and adjustment: Input setpoint (SP), output value (OP), adjust control parameters (PID), supporting batch parameter modification.

Alarm management: Alarm confirmation, alarm reset, alarm history query, filtering alarms by priority,联动 of sound and light prompts.

System control: Startup/shutdown of operation station, user login/logout, permission switching, system diagnosis invocation, data backup startup.

Data input and configuration: Engineer-level data entry, recipe invocation, process parameter configuration, supporting online modification and saving. Applicable scenarios

System: Honeywell TDC 3000, TPS, Enhanced Micro TDC 3000

Equipment: Universal Operator Station (US), Enhanced Operator Station (GUS), Micro TDC 3000 Console

Industry: Petrochemicals, Thermal Power, Nuclear Power, Metallurgy, Cement, Glass, Pharmaceuticals

Application: Production process monitoring, Operator's daily control, Alarm handling, Process parameter adjustment, System maintenance operation, Replacement and upgrade of old keyboards


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