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KYOWA DA-710

One Channel

DC Amplifier

KYOWA DA-710

General-Purpose, 2 Channels

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Call 022 7106162

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Highly accurate 2-channels isolated DC amplifier High input impedance, high gain accuracy and low cost
The DA-710A is a highly accurate 2-channel isolated DC amplifier which satisfies requirements for high input impedance, high gain accuracy and low cost.
Since the channels are isolated from each other, the DA-710A can effectively be used for measurement if the 2 channels are connected to different signal sources. In addition, input-output isolation ensures excellent stability and outstandingly minimizes noise effects. The allowable common mode input voltage is ±300 VDC, while setting the attenuation switch to 1/100 makes the maximum allowable input voltage ±110 VDC. Furthermore, high-frequency components can be eliminated by the low-pass filter for measurement at a high SN ratio.
Thus, the DA-710A can be used for various purposes including general minute voltage measurement, temperature measurement in combination with a thermocouple, and as a preamplifier for recorders and data processors.

 

Features

  • 2 channels/unit
  • Input-output isolation ensures excellent stability and makes it less susceptible to noise.
  • Low-pass filter enables measurement at high SN ratio.
  • Highly accurate
  • Allowable common mode input voltage 300 V and maximum measurement input voltage ±110 V.
  • Voltage calibration function
  • Low cost

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Specifications

Number of Channels2 
Input Mode: DifferentialIsolated between input and output, and between channel and channel 
Isolation MethodOptical 
Input Impedance10 MΩ + 10 MΩ or more (ATT ×1 and OFF) 
1 M Ω+ 1 M Ωor more (ATT × 1/100) 
Gain13 steps of 10, 20, 50, 100, 200, 500 (×1 and ×1/100) and OFF; continuously variable between ×1 and x2.5 or more 
Gain accuracy:  ±0.1% FS (ATT ×1),±0.3% FS (ATT × 1/100) 
Stability Zero balanceWithin ±5μVrti / ℃ (with input shorted and gain 500) 
Gain: Within ±0.02%/℃ 
NonlinearityWithin ±0.05% FS 
Frequency ResponseDC to 10 kHz (+1/-3 dB) 
Output A & B±10V (load resistance 10 kΩ or more) 
Input Impedance1Ω or less 
Common Mode Rejection Ratio120 dB or more (DC to 60 Hz)  
(with balanced input of 1kΩ, gain 500 and ATT ×1) 
Allowable Common Mode Voltage±300 VDC or AC peak, 
insulation resistance 1000 MΩ or more 
Allowable Maximum Input Voltage±2 VDC or AC peak (ATT × 1) 
±110 VDC or AC peak (ATT ×1/100) 

Zero Balance Adjustment Range (Output)

 

±5 V (OUT A and B linked); 
±1 V (OUT B independent) 
Noise10 μV p-p (RTI) + 6 mV p-p (RTO) 
(with input shorted, gain 500 and ATT ×1) 
Calibration Voltage (Output) 4 V within±0.2% 
Settling Time100μs or less, output ±within ±0.1% 
Overload Recovery Time100μs or less, output ±within ±0.1% 
Crosstalk between Channels10μV p-p (RTI) + 6 mV p-p (RTO) or less 
Common Mode Crosstalk Rejection Ratio10 μV p-p (RTI) + 6 mV p-p (RTO) or less 
Low-pass Filter2-pole Butterworth 6 steps of 10, 30, 100, 300, 
1kHz and F Within-3± dB,1±dB at cutoff point 
Cutoff characteristic: -12 dB/oct. 
Operating Temperature/Humidity Range-10 to 50℃, 20 to 80% RH (noncondensing) 
Storage Temperature/Humidity Range-20 to 70℃, 5 to 95% RH (noncondensing) 
Withstand Voltage1k VAC, 1minite for (1 or 2 channel input connector pin) 
⇔ (Output, Casing, AC Power Supply) 
Power SupplyAC line, 4.5 VA 
Dimensions & Weight49(W) x 128.5(H) x 262.5(D) mm (excluding protrusions), approx. 1.0 kg 

Standard Accessories

AC power cable P-25 (with conversion adapter CM-39),

Input cable U-108, Output cable U-63, Miniature scewdriver,

Instruction Manual (CD-ROM)

Optional Accessories

Amplifier stand FA-1B

Housing cases YB-A 

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KYOWA DA-710

KYOWA DA-710

DC Amplifier

KYOWA DA-710

General-Purpose, 2 Channels

Write your review

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