Product Core Brief
- Model: AIP831-101/VESA/EIM
- Brand: YOKOGAWA
- Series: CENTUM VP Desktop HIS Operator Keyboard
- Core Function: 8-loop simultaneous operation keyboard for CENTUM VP desktop-type HIS, with VESA bracket and USB speaker.
- Product Type: DCS Operator Keyboard / Desktop HIS Peripheral
- Key Specs: 8-loop control keys | Touch sensors for instrument faceplate highlight | USB speaker | VESA bracket | USB interface | 5 V bus-powered | LHS1140 software required
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
Operator keyboards are easy to overlook until a replacement is needed during a control room upgrade. The /VESA/EIM is a YOKOGAWA 8-loop simultaneous operation keyboard for CENTUM VP desktop-type HIS. It provides eight loop control keys with touch sensors that support the “instrument faceplate highlight” function on the desktop HIS screen.
For maintenance and procurement teams, this unit is typically used as an OEM replacement for operator stations in CENTUM VP environments. The VESA suffix indicates it includes a VESA mounting bracket, and EIM identifies a specific configuration variant. The keyboard connects via USB and includes an independent USB speaker for alarm and sound functions, separate from the PC buzzer. Because the AIP831 requires the LHS1140 Eight-loop Simultaneous Operation Package and CENTUM VP R5.03 or later standard operation software, it should be confirmed against the existing HIS configuration before ordering.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Model | /VESA/EIM |
| Product Type | 8-Loop Operation Keyboard |
| Compatible System | YOKOGAWA CENTUM VP Desktop HIS |
| Control Keys | 8-loop simultaneous operation keys |
| Touch Sensors | Yes, for instrument faceplate highlight |
| Sound Function | Independent USB speaker |
| Interface | USB A type × 2; USB 2.0 operation + USB 1.1 sound |
| Power Supply | 5 V ±5%, bus-powered from PC USB ports |
| Mounting | VESA bracket included |
| Software Requirement | LHS1140 + CENTUM VP R5.03 or later standard operation/monitoring function |
Suffix reference: 101 = AIP831 variant; VESA = with VESA mounting bracket; EIM = configuration/option code. Exact meaning should be confirmed from the physical label.
Key Selling Points & Differentiators
- 8-loop simultaneous operation: Allows operators to control multiple loops directly from the keyboard.
- Touch-sensor highlight function: Supports instrument faceplate highlighting on desktop HIS screens.
- USB speaker included: Provides dedicated sound output independent of the PC buzzer.
- VESA bracket included: Simplifies mounting at the operator console.
- OEM YOKOGAWA keyboard: Suitable for control room upgrades, replacements, or spare stocking.
- Not recommended for: CENTUM CS 3000 FCS rack installation, analog I/O replacement, fieldbus communication cards, or systems without LHS1140 licensing. Always confirm the HIS software version and USB port availability before ordering.
Quality Transparency SOP
Operator keyboards should be verified for both mechanical integrity and USB functionality.
- Incoming visual QA: Inspect factory sealing, label integrity, key surface condition, and VESA bracket mounting points.
- USB connector check: Confirm both USB A connectors are intact and free of oxidation or mechanical damage.
- Key function check: Verify all eight loop keys respond correctly when connected to a compatible HIS PC.
- Sound function check: Confirm the USB speaker is recognized and produces sound.
- Touch sensor check: Verify touch sensors activate the faceplate highlight function on the desktop HIS.
- Final packing: Record serial/lot information, apply protective packaging, and seal with a condition label.
Technical Risk Avoidance
Confirm software compatibility. The AIP831 requires LHS1140 Eight-loop Simultaneous Operation Package and CENTUM VP R5.03 or later standard operation/monitoring software. Without the correct license, the 8-loop function may not work.
Both USB ports must be connected. The keyboard uses one USB channel for operation and another for sound. Connecting only one port may disable either keyboard functions or the speaker.
Verify the VESA bracket requirement. If the existing operator console does not support VESA mounting, the bracket may need an alternative installation method.
Do not treat this as an FCS module. The AIP831 is a desktop HIS keyboard, not a controller card, I/O module, or communication card installed in a YOKOGAWA FCS rack.
Match the exact suffix. AIP831 variants such as 01P831-111 may differ in configuration or accessories. Always confirm the full model /VESA/EIM against the existing label.
Buyer’s FAQ
Is this keyboard genuine YOKOGAWA?
Yes. The /VESA/EIM is an OEM YOKOGAWA CENTUM VP desktop HIS operator keyboard. We supply it as new original/new surplus unless otherwise stated.
What does AIP831-101/VESA/EIM do?
It provides 8-loop simultaneous operation for CENTUM VP desktop HIS, with touch sensors and a USB speaker. The VESA bracket allows console mounting.
Can I use it without LHS1140 software?
No. The LHS1140 Eight-loop Simultaneous Operation Package is required for full 8-loop functionality on desktop HIS.
Does it work with CENTUM CS 3000 FCS racks?
No. The AIP831 is a desktop HIS keyboard connected to a PC-based operator station, not an FCS rack module.
What does EIM mean?
“EIM” is a configuration/option code. Its exact definition should be confirmed from the product label or YOKOGAWA documentation.
What is the warranty and lead time?
Each unit carries a standard 12-month functional warranty from shipment, excluding damage from incorrect installation, software incompatibility, or missing LHS1140 licensing. In-stock units typically ship within 1–3 business days after payment confirmation.









