![YOKOGAWA + handheld controller + YHC4100 + bare machine[USED]](https://mlidoo.com/wp-content/uploads/2026/02/116-300x300.jpg)
YOKOGAWA + handheld controller + YHC4100 + bare machine[USED]
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Yokogawa
Description
Yokogawa YHC4100 HART Handheld Communicator (Bare Machine)
Basic Identification
- Model: YHC4100
- Protocol: HART (over 4–20 mA loop)
- Type: Portable handheld communicator
- Status: Active (replaces legacy BT200 BRAIN terminal)
- Bare Machine Definition: Only the communicator unit; no accessories
Core Functions
- Configuration: Set tag, range, output, engineering units
- Monitoring: PV/SV, loop current, diagnostics
- Calibration: Zero/span trim, simulation
- Data Management: Upload/download configs, offline editing
- Firmware/DD Update: Internet‑based upgrades
Technical Specifications (Bare Unit)
Display & Interface
- Display: 128×128 pixel backlit LCD, 13 lines
- Keypad: Full alphanumeric + function keys
- HART Port: Banana jacks (3/4” center)
- Power Input: 5×AA alkaline (not included) or optional AC adapter
- Dimensions: ~220×110×50 mm
- Weight: ~550 g (without batteries)
Compatibility
- HART Revisions: 5, 6, 7
- Universal Support: All HART field devices (Yokogawa EJA, Rosemount, etc.)
- Device Descriptions: 600+ pre‑loaded; expandable via download
What’s Included in a Bare Machine
- Only: YHC4100 communicator unit
- Not Included:
- Batteries (5×AA)
- HART lead kit (A900529‑00014: grabbers + 250 Ω resistor)
- AC adapter (A37003 / 9B000007)
- RS‑232 cable
- Soft carrying case
- User manual
- Software (DMS, FieldMate)
Typical Accessories (Required for Use)
- HART Lead Kit (A900529‑00014) – for loop connection
- 5×AA Alkaline Batteries (or NiMH + charger)
- Optional: AC adapter, carrying case, RS‑232 cable
Comparison: BT200 vs. YHC4100
| Feature | BT200‑N00 | YHC4100 |
|---|---|---|
| Protocol | BRAIN (Yokogawa proprietary) | HART (industry standard) |
| Status | Discontinued | Active |
| Compatibility | Only Yokogawa BRAIN devices | All HART devices |
| Display | 21×8 character LCD | 128×128 pixel backlit |
| Data Storage | Limited | 200+ config files, 600+ DDs |
| Firmware Update | None | Internet‑based |

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