YingZhou Industrial Automation | Product Information
Fluke 2638A/20 Hydra Series III Data Acquisition Unit
20 Universal Channels | 6.5-Digit DMM | 0.0024% DC Accuracy | CAT II 300V
| Specification |
Verified Product Data |
| Manufacturer |
Fluke Corporation |
| Model |
2638A/20 |
| Carton Configuration |
2638A/20 220-6/CN (photographed carton label) |
| Carton Item Number |
4385538 |
| Product Family |
Hydra Series III |
| Product Type |
Data Acquisition Unit / Data Logger / Digital Multimeter |
| Factory Input Configuration |
20 Universal Measurement Channels |
| Series Expansion Capability |
Up to 66 Universal Differential Inputs |
| Factory Relay Board Configuration |
One 2638A-RLY |
| Factory Input Connector Configuration |
One 2638A-100 |
| Basic DC Accuracy |
0.0024% |
| Basic Thermocouple Accuracy |
0.5°C |
| Digital Multimeter Resolution |
6.5 Digits |
| Measurement Input Types |
AC/DC Voltage, AC/DC Current, Resistance, Thermocouple, RTD, Thermistor, Frequency |
| DC Voltage Measurement Range |
100 mV to 300 V |
| AC Voltage Measurement Range |
100 mV to 300 V |
| Resistance Measurement Range |
100 Ω to 100 MΩ |
| Frequency Measurement Range |
20 Hz to 1 MHz |
| Thermocouple Support |
14 Common Thermocouple Types |
| On-board Math Channels |
20 |
| Trend Graph Display |
Color Display, Up to Four Channels |
| Digital I/O |
8 |
| Alarm Outputs |
6 TTL |
| Measurement Safety Rating |
CAT II 300 V |
| Network Interface |
10/100 Mb Ethernet |
| Remote Command Support |
SCPI |
| Data Storage |
Internal Memory / USB Flash Drive Support |
| Operating Temperature |
0°C to 50°C |
| Power Frequency |
47–440 Hz |
| Dimensions |
150 × 285 × 385 mm |
| Approximate Weight |
6 kg |
| Manufacturer Lifecycle |
Discontinued / Reclassified |
| Availability |
IN STOCK |
Product Overview
The Fluke 2638A/20 is a Hydra Series III precision data acquisition unit and digital multimeter designed for multi-channel industrial and laboratory measurements. The 2638A/20 factory configuration provides 20 universal input channels, with one relay board and one universal input connector. The platform supports multiple signal types, including AC/DC voltage, current, resistance, thermocouples, RTDs, thermistors and frequency. With basic 0.0024% DC measurement accuracy, 0.5°C basic thermocouple accuracy and an integrated 6.5-digit digital multimeter, the instrument supports temperature validation, process measurements, equipment testing and data logging. It features a color display, multi-channel monitoring, internal data storage, USB data transfer, Ethernet communication and configurable math and alarm functions. Fluke lists the 2638A product family as discontinued or reclassified. The supplied photographs identify a 2638A front panel and a carton marked 2638A/20 220-6/CN, item number 4385538. Exact electrical configuration, installed modules, accessories and instrument operating condition require confirmation before an order is finalized.
Key Product Features
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Hydra Series III Data Acquisition Unit — Fluke precision industrial multi-channel measurement platform.
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20 Universal Input Channels — Supports the 2638A/20 factory measurement configuration.
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0.0024% Basic DC Accuracy — Precision DC voltage measurements under specified conditions.
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0.5°C Thermocouple Accuracy — Designed for precision temperature measurements.
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6.5-Digit Digital Multimeter — Integrated bench DMM function with front-panel input terminals.
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Multiple Measurement Types — Supports voltage, current, resistance, thermocouples, RTDs, thermistors and frequency.
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Real-Time Trend Graphing — Color display supports measurement monitoring and trend visualization.
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Data Logging and USB Support — Internal storage and external data transfer functionality.
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20 Math Channels — Supports calculated values and additional data processing.
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Programmable Alarms — Includes configurable alarm functions and TTL outputs.
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Ethernet Communication — Supports network-based measurement applications and SCPI commands.
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CAT II 300 V Rating — Manufacturer-specified industrial measurement input safety category.
Actual Product Verification
✓ Actual instrument front-panel and carton photographs supplied
✓ Front-panel identification: FLUKE 2638A HYDRA SERIES III
✓ Carton model configuration: 2638A/20 220-6/CN
✓ Carton item number: 4385538
✓ Carton quantity: 1 unit
✓ Carton country-of-origin marking: China
✓ Manufacturer confirms the 2638A/20 factory configuration has 20 universal input channels
✓ Actual installed channel modules and rear-panel electrical configuration require confirmation
✓ Instrument power-on, accuracy, calibration and supplied accessories have not been independently verified
In Stock & Available to Order
Fluke 2638A/20 Hydra Series III data acquisition unit is marked in stock based on the supplied inventory information. This manufacturer-discontinued measurement system is offered for exact-model industrial and laboratory procurement. The supplied carton is identified as 2638A/20 220-6/CN. Please confirm the exact installed input modules, electrical configuration, accessories, calibration requirements, operating condition and shipping arrangements before placing an order.
IN STOCK
Fluke 2638A/20 Hydra Series III
Contact us for exact-model verification, multiple units and project sourcing. Please confirm the input-channel configuration, power requirements, calibration and accessory requirements before ordering.
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