Datasheet

ManualsBrandsFLUKE CALIBRATION ManualsEnvironmental Testing Equipment2638A/40 240 Multi-channel data logger Unit of measurement Voltage, Amperage, Temperature, Resistance

TECHNICAL DATA

Fluke 2638A Hydra Series III

Data Acquisition System/

Digital Multimeter

Price-performance breakthrough in a standalone

data acquisition system

The Fluke Hydra Series III continues the Hydra Series legacy of pre-

cision, multi-channel data acquisition. The new Series III improves

on Hydra’s 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 indus-

trial 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 acqui-

sition system with an almost unlimited number of input channels.

ACCURATE

DC accuracy of 0.0024 % and

thermocouple accuracy of 0.5 °C

EXPANDABLE CHANNELS

Up to 66 universal differential isolated

inputs, 20 on-board math channels, 45

channels/second basic dc scan rate

SELECTABLE INPUTS

Ac V, dc V, ac I, dc I, thermocouple, PRT

(2, 3, 4 w), thermistor, resistance (2-4 w),

frequency

DIGITAL MULTIMETER MODE

6.5-digit bench DMM function for front-

panel inputs

ONE-BUTTON SCREEN CAPTURE

For chart or data displays, color trend-

graphing and analysis

MULTI-CHANNEL REAL-TIME DATA

Monitor function for real-time viewing and

charting between scans

MEMORY AND DATA

Internal 75,000 scan/setup file memory,

USB flash drive support, data security

features

SAFETY RATING

Only general purpose portable data

acquisition system with an IEC

Category II 300 V safety rating

Summary of content (12 pages)

PAGE 1
TECHNICAL DATA Fluke 2638A Hydra Series III Data Acquisition System/ Digital Multimeter Price-performance breakthrough in a standalone data acquisition system The Fluke Hydra Series III continues the Hydra Series legacy of precision, multi-channel data acquisition. The new Series III improves on Hydra’s 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.
PAGE 2
Standard DMM style inputs for DMM channel with automatic resetting overcurrent protection Back-lit main function keys always let you know your operating mode and confirms recording status Memory management for downloading and moving data and setup folders Dedicated DMM function with graphing and statistics Five function keys support faster setup and operation Standby button pauses operations without losing accuracy or data Three slots hold relay cards and input modules; 22 channels each slot Navigation k
PAGE 3
Clear top case with embedded channel numbers for easy wiring identification Dedicated low burden ac/dc current channels Electronic ID with serial number and calibration date reports to the 2638A Strain reliefs to help secure wiring connections 20 universal channels and two dedicated low burden current channels (ac/dc) per module Universal Input Connector component signal conditioning module.
PAGE 4
Real-time data charting with historical review. Dedicated DMM functions. Real-time data charting with historical review Chart the real-time data of up to four channels at once. Simply select your channels and view real time charts of your measurements. The chart will auto scale for best fit of the displayed values. Zoom in or out to view areas of interest with the push of a button.
PAGE 5
Memory management The main panel memory key opens a simple menu for managing data files and setup files. If you want to load a previously saved setup file for a test, simply select your file from either internal memory or from a USB drive and you are ready to start scanning. You can easily move stored internal data to a USB for PC analysis or move setup files to another 2638A. With Hydra Series III you have easy access to data without the need for a direct PC connection.
PAGE 6
Data security If you use your 2638A in a regulated industry, you will appreciate the data traceability feature option in the instrument setup menu. This two level (administrator/ authorized user) system allows an administrator to assign up to five authorized users. The system provides an authenticated record of the operator of any recorded data. Both setup files and resulting data files contain the authorized user ID and timestamp.
PAGE 7
Measurement specifications Accuracy specifications generally are valid for 6.5 digit resolution mode (unless otherwise noted) after a minimum of one-hour warm-up, and within an operating temperature range of 18 °C to 28 °C. Derating applies with a fast sample rate and for operating temperatures outside the limited range. Twenty-four-hour specifications are relative to calibration standards and assume a controlled electromagnetic environment per EN 61326.
PAGE 8
AC voltage AC voltage specifications are for ac sine wave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz, add an additional error of 0.1 % of range. Maximum input Front panel: 300 V rms or 425 V peak; Rear inputs: 150 V CAT II; 250 V peak Measurement method AC-coupled true-rms.
PAGE 9
DC current accuracy Accuracy is given as ± (% measurement + % of range). Range 24 hour (23 ±1 °C) 90 days (23 ±5 °C) 1 year (23 ±5 °C) T.C./°C outside 18 °C to 28 °C 100 µA 0.005 + 0.003 0.006 + 0.0035 0.007 + 0.0035 0.002 + 0.001 1 mA 0.005 + 0.001 0.006 + 0.0011 0.007 + 0.0011 0.002 + 0.001 10 mA 0.005 + 0.003 0.006 + 0.0035 0.007 + 0.0035 0.002 + 0.001 100 mA 0.005 + 0.001 0.015 + 0.0035 0.015 + 0.0035 0.002 + 0.
PAGE 10
Resistance input characteristics General specifications Measurement Rate / Resolution Source current Voltage 100 V to 264 V in 4 power model selections (100 V, 120 V, 220 V, 240 V) 0.
PAGE 11
Ordering information 2638A/20 Data Acquisition Unit/Data Logger: 20 universal channels includes one relay board (2638A-RLY) and one (2638A-100) connector 2638A/40 Data Acquisition Unit/Data Logger: 40 universal channels includes two relay boards (2638A-RLY) and two (2638A-100) connectors 2638A/60 Data Acquisition Unit/Data Logger: 60 universal channels includes three relay boards (2638A-RLY) and three (2638A-100) connectors Power selection: Specify 100 V, 120 V, 220 V, 240 V power when ordering (power sett
PAGE 12
Fluke. Keeping your world up and running.® Fluke Corporation PO Box 9090, Everett, WA 98206 U.S.A. Fluke Europe B.V. PO Box 1186, 5602 BD Eindhoven, The Netherlands For more information call: In the U.S.A. (800) 443-5853 or Fax (425) 446-5116 In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222 In Canada (800)-36-FLUKE or Fax (905) 890-6866 From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116 Web access: http://www.fluke.com ©2013, 2016 Fluke Corporation.