All models are easy to set up and reconfigure from the front panel. Additionally, all units have bi-directional communication via RS-232C, which enables control from a host computer. The RS-232C interface also supports stand-alone use with a serial printer. An optional GPIB/IEEE-488 interface is available for the 2620A only.
The Hydra Series isextremely rugged and able to operate in diverse environments. Its operating range is 0 to 60ºC, and it is tested to stringent shock and vibration standards. Hydra"s sturdy metal chassis effectively shields against electromagnetic interference, maintaining high measurement accuracy on low level signals. The analog circuitry is also isolated from the digital circuitry so you can measure high voltages directly (up to 300V ac rms). And it conforms to I.E.C., C.E. and CSA safety standards. What"s more, all set-up information is battery-backed, so it"s immune to power failure. Hydra will return from a power loss and resume scanning, while all configuration information and stored data remain intact.
Hydra Series Portable DataAcquisition
The Hydra Series offers easy portability along with Fluke"s built-in signal conditioning and Universal Input Module, at a price to fit your budget. You can easily retrieve data from the Hydra units via the RS-232 interface, or through a modem in upload or real-time mode.
Channel information and measurement parameters can be set up directly from the front panel or your PC.
Three models featuring removable memory card data storage, internal memory storage, and direct real-time data transfer options.
Should power fail, these instruments automatically resume data collection when power is restored.
Thermometers > |
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Hydra Series Portable Data Acquisition |
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Technical Specifications |
DC Volts |
Range: |
90 mV to 300/150V |
Resolution: |
1 µV to 10 mV |
Accuracy: |
(3-Sigma)± 0.018% |
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AC Volts |
Range: |
90 mV to 300/150V |
Resolution: |
1 µV to 10 mV |
Accuracy: |
(3-Sigma)± 0.018% |
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Resistance |
Range: |
300Ω to 10 MΩ |
Resolution: |
10 mΩ to 1 KΩ |
Accuracy: |
(3-Sigma)± 0.013% |
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Frequency |
Range: |
15 Hz to 1 MHz |
Resolution: |
0.01 Hz to 1 kHz |
Accuracy: |
(3-Sigma)± 0.05% |
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RTD (Pt 100) |
Range: |
-200 to 600ºC |
Resolution: |
0.02ºC |
Accuracy: |
(3-Sigma)± 0.05ºC |
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J Thermocouples |
Range: |
-100 to 760ºC |
Resolution: |
0.1ºC |
Accuracy: |
(3-Sigma)± 0.39ºC |
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K Thermocouples |
Range: |
-100 to 1372ºC |
Resolution: |
0.1ºC |
Accuracy: |
(3-Sigma)± 0.45ºC |
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T Thermocouples |
Range: |
-150 to 400ºC |
Resolution: |
0.1ºC |
Accuracy: |
(3-Sigma)± 0.39ºC |
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Other Thermocouple types |
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2625A Data Memory Specifications |
2625A Data Storage |
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Stores 2047 scans; stored with each scan: time stamp, all defined analog input channels, the status of four alarm outputs and eight digital I/O, and the totalizer count |
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Scan Contents |
Memory life: |
5 years minimum; at 25ºC |
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Date and time stamp |
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All defined analog input channel values |
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Status of four alarm outputs and eight digital I/O |
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Totalizer count |
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2635A Memory Card Capacity Specifications |
256k Card Size |
4 Channels in Scan |
8900 |
10 Channels in Scan |
4800 |
20 Channels in Scan |
2710 |
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1M Card Size |
4 Channels in Scan |
36,860 |
10 Channels in Scan |
19,860 |
20 Channels in Scan |
11,210 |
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2M Card Size |
4 Channels in Scan |
74,110 |
10 Channels in Scan |
39,910 |
20 Channels in Scan |
22,550 |
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4M Card Size |
4 Channels in Scan |
149,039 |
10 Channels in Scan |
80,251 |
20 Channels in Scan |
45,359 |
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General Specifications |
Channel Capacity |
Analog Inputs: |
21; Digital I/O & Alarm Outputs |
Totalizer: |
1 |
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Power, battery life |
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90V ac to 264V ac (50 Hz or 60 Hz), or 9V dc to 16V dc; less than 10W. (If both sources are applied simultaneously, the greater of ac or dc is used. At 120V ac the equivalent dc voltage is ~14.5V) |
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Temperature, Humidity (non-condensing) |
Operating: |
0 to 28ºC, <=90% RH; 28ºC to 40ºC, <=75% RH; 40ºC to 60ºC, <=50% RH; Storage: -40ºC to 75ºC, 5 to 95% RH |
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Altitude |
Operating: |
3050m (10,000 ft); |
Storage: |
12,200m (40,000 ft) |
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Common Mode and Normal Mode Voltage |
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300V dc or ac rms (channels 0,1,11); 150V dc or ac rms (all other channels) IEC Overvoltage Category II. |
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Isolation |
Analog input to analog input, and analog input to any digital input: |
meets IEC 1010 for 300/150 volts reinforced and ANSI/ISA-S82.01-1988 and CSA 231 for 250 volts single insulation |
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Safety |
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Complies with applicable sections of the IEC1010, ANSI/ISA-S82.01-1988, CSA231, UL 1244, CSA 556B, CE. |
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RF Emissions |
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Passes FCC EMI Class A Equipment and VDE 0871B |
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Size |
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9.3 cm x 21.6 cm x 31.2 cm (3.67" x 8.50" x 12.28") |
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Weight |
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Memory life |
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10 years typical for real-time clock, set-up configuration and measurement data in 2625A, memory cards typically 5 years for the 256 kB card |
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Interfaces |
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RS-232C connector: nine pin male (DB-9P) |
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Signals |
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Modem Control |
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Baud Rates (Set from front panel) |
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300, 600, 1200, 2400, 4800, 9600, 19.2k, 38.4k |
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Echo (Set from front panel) |
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Flow Control |
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IEEE-488 (Optional, 2620A Only) |
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Complies with IEEE-488.1 Standard; disables RS-232C Interface while in use |
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