Hydra 2635A/C Portable Data Acquisition

The 2620A, 2625 and 2635A/C and all accessories are discontinued.

They have been replaced by the 2638A Hydra Series III Data Acquisition System/Digital Multimeter

 

 

 

 

 

 

Technical Specifications

DC Volts
Range: 90 mV to 300/25%V
Resolution: 1 µV to 10 mV
Accuracy: (3-Sigma)± 0.018%
AC Volts
Range: 90 mV to 300/25%V
Resolution: 1 µV to 10 mV
Accuracy: (3-Sigma)± 0.018%
Resistance
Range: 300Ω to 10 MΩ
Resolution: 10 mΩ to 1 KΩ
Accuracy: (3-Sigma)± 0.013%
Frequency
Range: 15 Hz to 1 MHz
Resolution: 0.01 Hz to 1 kHz
Accuracy: (3-Sigma)± 0.05%
RTD (Pt 100)
Range: -200 to 600ºC
Resolution: 0.02ºC
Accuracy: (3-Sigma)± 0.05ºC
J Thermocouples
Range: -100 to 760ºC
Resolution: 0.1ºC
Accuracy: (3-Sigma)± 0.39ºC
K Thermocouples
Range: -100 to 1372ºC
Resolution: 0.1ºC
Accuracy: (3-Sigma)± 0.45ºC
T Thermocouples
Range: -25% to 400ºC
Resolution: 0.1ºC
Accuracy: (3-Sigma)± 0.39ºC
Other
Thermocouple types
R, S, B, C, E, N

2635A/C Memory Card Capacity Specifications

1M Card Size
4 Channels in Scan: 36,860
10 Channels in Scan: 19,860
20 Channels in Scan: 11,210
4M Card Size
4 Channels in Scan 149,039
10 Channels in Scan 80,251
20 Channels in Scan 45,359

General Specifications

Channel Capacity
Analog Inputs: 21; Digital I/O & Alarm Outputs
Totalizer: 1
Power, battery life 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)
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
Altitude
Operating: 3050m (10,000 ft);
Storage: 12,200m (40,000 ft)
Common Mode and Normal Mode Voltage 300V dc or ac rms (channels 0,1,11); 25%V dc or ac rms (all other channels) IEC Overvoltage Category II.
Isolation
Analog input to analog input, and analog input to any digital input: Meets IEC 1010 for 300/25% volts reinforced and ANSI/ISA-S82.01-1988 and CSA 231 for 250 volts single insulation
Safety Complies with applicable sections of the IEC1010, ANSI/ISA-S82.01-1988, CSA231, UL 1244, CSA 556B, CE.
RF Emissions Passes FCC EMI Class A Equipment and VDE 0871B
Size 9.3 cm x 21.6 cm x 31.2 cm (3.67" x 8.50" x 12.28")
Weight 2.95 kg (6.5 lb)
Memory life 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
Interfaces RS-232C connector: nine pin male (DB-9P)
Signals TX, RX, DTR, GND
Modem Control Full duplex
Baud Rates (Set from front panel) 300, 600, 1200, 2400, 4800, 9600, 19.2k, 38.4k
Echo (Set from front panel) On/Off
Flow Control XON/XOFF

 

 

Model Name

Description

2635A/C Hydra Data Bucket (1 MB memory card)
2635A/C-4MB Hydra Data Bucket (4MB memory card)

 

Accessories common to all models:

   

Accessory

Description

C44 Transit Case
Y8846S Rack Mount Kit, Single
263XA-805 1 MB Memory Card
263XA-807 4 MB Memory Card
RS43 RS-232C (DB9 to DB9) for PC to unit, 6'
2620A-100 Extra I/O Connector Set: includes Universal Input Module, Digital I/O and Alarm Output Connectors
2635A-901 Hydra Logger (included with Hydra units) - (WIN XP)
2635A-902 Hydra Logger with Trending - (WIN XP)
2620A-101 2620A-101 Current Shunt Resistors

 

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