3A98826H01
Part Number: 3A98826H01, manufactured originally by Westinghouse under Emerson automation system. This is embedded panel mount industrial trackball exclusively designed for WDPF WEStation SPARC-based operator workstation, serving as original factory human-machine input component for DCS control console. H01 is the baseline hardware revision of this trackball series with customized white plastic housing structure, specially matched with proprietary SUNMD serial communication interface of WEStation mainboard. Original OEM mass production has been permanently discontinued; available market products consist of fully inspected refurbished units and authentic dismantled original spare parts for maintenance replacement of thermal power and nuclear power legacy WDPF distributed control systems.
Description
1. Product Overview
Part Number: 3A98826H01, manufactured originally by Westinghouse under Emerson automation system. This is embedded panel mount industrial trackball exclusively designed for WDPF WEStation SPARC-based operator workstation, serving as original factory human-machine input component for DCS control console. H01 is the baseline hardware revision of this trackball series with customized white plastic housing structure, specially matched with proprietary SUNMD serial communication interface of WEStation mainboard. Original OEM mass production has been permanently discontinued; available market products consist of fully inspected refurbished units and authentic dismantled original spare parts for maintenance replacement of thermal power and nuclear power legacy WDPF distributed control systems.
2. Technical Specifications
2.1 Electrical Parameters
The trackball adopts dedicated SUN proprietary serial interface complying with customized RS232 communication definition for WEStation host board. Rated working input power is 5VDC supplied directly from control console internal power circuit, with typical total power consumption less than 1 Watt. Equipped with integrated left and right function push buttons built into trackball assembly, internal drive PCB is pre-installed inside the housing to convert mechanical rolling motion into digital cursor control signals. Internal circuit adds transient voltage suppression component to resist ESD and electrical interference from nearby relay and power modules inside control cabinet.
2.2 Mechanical and Environmental Specifications
The unit features white integrated plastic enclosure designed for flush embedded installation on standard DCS control console panel with fixed industry mounting cutout dimension. Built-in surrounding dustproof rubber frame prevents fine control room dust penetrating into internal rolling mechanism for long-term stable continuous operation. Rated operating ambient temperature ranges from 0℃ to +55℃ inside sealed control room environment; spare part storage temperature covers -40℃ to +85℃ with applicable relative humidity between 5% and 95% under non-condensing condition. The whole assembly meets CE component safety standard for industrial control application.
2.3 H01 Version Features
H01 is standard original matching version for second-generation WEStation operator station, fixed SUNMD communication protocol configuration and white appearance distinguish it from later revised black housing variants of same trackball family. Complete assembly includes trackball rolling core, two control push buttons and internal dedicated drive circuit board as one integrated unit.
3. Core Product Functions
First, it acts as primary cursor control device replacing conventional computer mouse to move screen cursor, select equipment icons including pumps and valves on WDPF monitoring graphic screens. Second, cooperating with console membrane keyboard to finish routine site operation such as setpoint adjustment, alarm acknowledgment, screen switching and control logic parameter download. Third, it is standard factory fitted input component for main control console of coal-fired power plant and nuclear power station WDPF system to realize daily field monitoring and operational commands input.
4. Application & Supply Information
Mainly used as replacement spare part for overhaul and modification of Westinghouse WDPF DCS system widely deployed in thermal power, cogeneration and nuclear power plant central control room. Available supplies include quality guaranteed refurbished trackballs and tested original used spare units after full power-on inspection. Standard delivery lead time is two to four weeks, expedited order service is available upon customer request; global shipping can be arranged via DHL, UPS or FedEx international courier with valid product warranty coverage.
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