2638A Hydra Series III Data Acquisition System
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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 0.5 °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.
Specifications: Fluke 2638A/05 Hydra Series III 22-Channel Data Acquisition System
Accuracy quoted as ± % measurement; quoted best value in range; 1 year specifications
| Technical Specifications | ||
| DC volts | Range | 100 MV to 300 V |
| Resolution | 0.1 µV to 1 mV | |
| Accuracy | 0.0024% | |
| AC volts | Range | 100 MV to 300 V |
| Resolution | 0.1 µV to 1 mV | |
| Accuracy | 0.11% | |
| Resistance | Range | 100 Ω to 100 MΩV |
| Resolution | 0.1 mΩ to 100 Ω | |
| Accuracy | 0.01% | |
| Frequency | Range | 20 Hz to 1 MHz |
| Accuracy | 0.01% | |
| RTD (Pt 100) | Range | -200°C |
| Resolution | 0.001°C | |
| Accuracy | 0.016°C | |
| J thermocouples | Range | -200°C to 1,000°C |
| Resolution | 0.01°C | |
| Accuracy | 0.53°C | |
| K thermocouples | Range | -200°C to 1,000°C |
| Resolution | 0.01°C | |
| Accuracy | 0.60°C | |
| T thermocouples | Range | -270°C to 400°C |
| Resolution | 0.01°C | |
| Accuracy | 0.62°C | |
| Other thermocouple types | R, S, N, E, B, C, D, G, L, M, U, W | |
| General Specifications | ||
| Channel capacity | Analog inputs | 22 channels; 8 digital I/O and 6 alarm outputs (TTL) |
| Totalizer | 1 | |
| Power | Voltage | 100 V to 264 A in 4 power model selections (100 V, 120 V, 220 V, 240 V) |
| Frequency | 47 Hz to 440 Hz (automatically sensed when turned on) | |
| Power consumption | 34 V A peak (24 W average) | |
| Communication | LAN | 10/100 Mb TCPIP DHCP |
| Remote commands | SCPI command set | |
| Internal memory | 57,000 scans 1000 setup files | |
| File security | Dual level, Administrator, five secure users, Guest status | |
| Alarm outputs | 6 TTL alarm outputs -- assignable to one or multiple channels | |
| Alarm setpoints | 2 assignable setpoints/channel, Hi Lo, Hi Hi, Lo Lo | |
| Language menus | English, Chinese, French, German, Japanese, Korean, Portuguese, Russian, Spanish | |
| Temperature | Operating | 0°C to 50°C |
| Storage | 20°C to 70°C | |
| Warm-up | One hour to full uncertainty specifications | |
| Relative humidity (non-condensing) | Operating | 0°C to 28°C < 90%, 28°C to 40°C < 75%, 40°C to 50°C < 50% |
| Storage | 20°C to 70°C <95% | |
| Weight | 6 kg (13.2 lbs) | |
| Dimensions | 150 x 285 x 385 mm (5.91 x 11.22 x 15.16 in) | |
| Standard rack height | 3 U | |
Key features
- DC accuracy of 0.0024%
- Thermocouple accuracy of 0.5°C
- 22 universal differential isolated inputs
- On-screen color trend graphing and analysis
- 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 75,000 scan/setup file memory
- USB flash drive support
- Data security features
- CAT II 300 V input safety rated
- Supported by TQSoft and TQAero thermal validation software for enhanced data collection in regulated industries
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