Description
Omega Engineering OM104 Thermocouple Voltage Current Scanner Auto-ICE GPIB
The Omega Engineering OM104 is a multi-channel thermocouple, voltage, and current scanner module designed for use with Omega and compatible data acquisition systems. It incorporates Auto-ICE™ Zero Stabilization for cold-junction compensation accuracy and Ratio Gard™ CM Attenuator circuitry for common-mode noise rejection — features that make it well suited to precise analog signal acquisition in laboratory and industrial environments. The module is card-format and interfaces via a Vector R644 edge connector.
Specifications & What's Included
- Manufacturer: Omega Engineering, Inc. — Stamford, Connecticut
- Model: OM104 (label reads OM104-XXX-T, option code 109.0-100.0-086)
- Input types: Thermocouple, Voltage, and Current
- Number of channels: 8 (Channels 1–8, with individual HIGH/LOW/AUXH/AUXL selector switches per channel visible on front panel)
- Cold-junction compensation: Auto-ICE™ Zero Stabilization
- Common-mode rejection: Ratio Gard™ CM Attenuator
- Form factor: Card/module — fits Omega DAS card cage or compatible chassis
- Interface connector: Vector R644 edge connector (included)
- PCB part number: 19-1328-52 (visible on reverse of board)
- Country of manufacture: USA
- Includes: OM104 scanner module with Vector R644 edge connector attached
Applications
The OM104 is a scanner module from Omega Engineering's data acquisition line, produced in the mid-1980s when card-cage DAS systems were standard in research, process control, and industrial test environments. It is designed to multiplex thermocouple inputs alongside voltage and current signals into a single acquisition channel, allowing a host system to poll multiple sensor types sequentially without additional signal conditioning hardware. The Auto-ICE cold-junction compensation circuit eliminates the need for an isothermal terminal block, improving measurement accuracy in varying ambient conditions. Typical applications include temperature mapping in environmental chambers, multi-point process monitoring, materials testing, and general laboratory data logging. Units like the OM104 remain in service today in legacy Omega DAS systems and in research facilities that maintain original hardware for process repeatability or long-running experiments. They are also sought by engineers integrating vintage Omega DAS platforms into modern test rigs.
This Omega Engineering OM104 Thermocouple, Voltage, and Current Scanner was pulled from an active research and development laboratory where it was in use and functional. The unit has been inspected and is in good used condition. The front panel labels and channel switch array are intact and legible. The PCB shows normal handling marks consistent with lab use. The Vector R644 edge connector is included and appears clean. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Omega Engineering |
Model: |
OM104 |
MPN: |
OM104-XXX-T 109.0-100.0-086 |
Type: |
Thermocouple, Voltage & Current Scanner |
SKU: |
21052 |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Includes Vector R644 edge connector. Pulled from R&D lab. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Card/Module |
Features: |
Auto-ICE Zero Stabilization, Ratio Gard CM Attenuator |
Number of Channels: |
8 (multi-channel, Ch 1–8 visible on front panel) |
Input Types: |
Thermocouple, Voltage, Current |
Connector/Interface: |
Vector R644 edge connector |
Application: |
Data acquisition, laboratory instrumentation, R&D |
Compatible With: |
Omega data acquisition systems; DAS/DAQ platforms |
PCB Number: |
19-1328-52 (visible on PCB) |
Condition Notes: |
Omega Engineering OM104 Thermocouple, Voltage & Current Scanner. Pulled from working R&D lab, in use and functional. Inspected, good used condition. Vector R644 edge connector included. Please view photos and contact us with questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
