The Fluke Hydra Series III continues the Hydra Series legacy of precision, multi-channel data acquisition. The new Series III improves on Hydras industry-leading thermocouple accuracy and adds a new dimension to how you collect and view data in a portable system.
DC measurement accuracy of 0.0024 %, basic 0.5 °C thermocouple accuracy, full-color display, easy-to-use menu system and industrial safety ratings put the 2638A in a category of its own as a precision data acquisition system. The dedicated 6.5 digit digital multimeter (DMM) mode provides additional utility and value.
The 2638A is expandable from 22 to 66 channels of differential analog inputs. A flexible, 22-channel Universal Input Connector lets you connect and disconnect any type of input to any channel, quickly and easily. Selectable inputs include dc voltage, ac voltage, resistance, thermocouple, RTD, thermistor, frequency and dc and ac current. You can also use the 2638A with optional software and other Fluke data loggers to create a flexible, customized data acquisition system with an almost unlimited number of channels.
2638A Hydra Series III features at a glance
DC accuracy of 0.0024 %
Thermocouple accuracy of 0.5 °C
Up to 66 universal differential isolated inputs
On-screen color trend graphing of up to four channels at a time
Easy-to-use menu system for setup and data management
Input types: ac V, dc V, ac I, dc I, thermocouple, PRT (2, 3, 4 w), thermistor, resistance (2-4 w), frequency
Multi-channel real-time data display
6.5-digit bench DMM function for front-panel inputs
Monitor function for real-time viewing and charting between scans
20 on-board math channels
One-button screen capture of chart or data displays
45 channels/second basic dc scan rate
Internal 57,000 scan/setup file memory
USB flash drive support
Data security features
300 V CAT II input safety rated
Supported by TQSoft and TQAero thermal validation software for FDA 21 CFR Part 11
and AMS 2750 compliant data collection
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General Specifications |
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Channel Capacity |
Analog inputs: 22 to 66 channels;
8 Digital I/O & 6 Alarm Outputs
(TTL) |
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Power |
Voltage: 100 V to 264 A in 4 power
model selections (100 V, 120 V, 220 V, 240 V) |
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Communication |
LAN: 10/100 Mb TCPIP DHCP |
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Internal memory |
57,000 scans |
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File security |
Dual level, Administrator, five
secure users, Guest status |
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Alarm outputs |
6 TTL alarm outputs -- assignable to
one or multiple channels |
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Alarm setpoints |
2 assignable setpoints/channel, Hi
Lo, Hi Hi, Lo Lo |
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Language menus |
English, Chinese, French, German,
Japanese, Korean, Portuguese, Russian, Spanish |
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Temperature |
Operating: 0 °C to 50 °C |
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Relative humidity (non-condensing) |
Operating: 0 °C to 28 °C <90% |
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Weight |
6 kg (13.2 lbs) |
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Dimensions |
150 mm x 285 mm x 385 mm (5.91 in x
11.22 in x 15.16 in) |
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Standard rack height |
3 U |
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Model Name |
Description |
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2638A/60 |
Data Acquisition Unit / Data Logger:
60 universal channels. Includes three relay boards (2638A-RLY) and three
2638A-100 connectors. |
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2638A/40 |
Data Acquisition Unit / Data Logger:
40 universal channels. Includes two relay boards (2638A-RLY) and two
2638A-100 connectors. |
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2638A/20 |
Data Acquisition Unit / Data Logger:
20 universal channels. Includes one relay board (2638A-RLY) and one 2638A-100
connector. |
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2680A-APSW v6.0 |
Fluke DAQ 6.0 Application Software for
Fluke data acquisition products. |
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TQSOFT-IQ/OQ |
TQSoft Pharma Process Analysis and Validation Software |
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TQAERO |
TQAero Furnace Validation Software |
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VAL-BNDR-TQS |
Validation Reference Binder |