~Phased out~  
 
ISO-LDH / ISO-LDL
Isolated Strain Gauge Type Loadcell Input Board
 
 
Model: ISO-LDH / ISO-LDL
     
 
  Note: For new customers, it's recommended to use I-7016 module instead of ISO-LD card.  
     
 
 
 
The ISO-LD series is a bus-type isolated loadcell input board. The isolation inputs can operate with up to 500 Vrms of common-mode voltage. The ISO-LD series features a 12-bit analog-to-digital converter, on board 1 KB FIFO buffer , one loadcell signal input channel, one analog input channel, 8-channel 12 ~ 24 V isolated digital inputs, 7-channel isolated open-collector digital outputs, one programmable 8-bit LED indicator to indicate the magnitude of strain gauge input signal. The ISO-LD series board is suitable for static force measurement and dynamic force analysis. Because there are on board excitation voltage, high gain amplifier, you don*t have to buy any excitation voltage and signal conditioning module. In other words, it save your money and space. The board also have some special features, such as 1.12-bit programmable offset voltage. Therefore the user can cancel the DC bias and amplify the AC signal 2.The isolated structure eliminate the ground loop noise and protect your computer. 3.On board FIFO buffer support gap-free A/D conversion under DOS and Windows environment. 4.Except the loadcell input channel, there are a lot digital I/O and one analog input channel .The user can implement a measurement and analysis system.
 
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  • AT bus
  • 500 VDC photo-isolation protection
  • one channel strain gauge input channel
  • Built-in 1 KB FIFO
  • Excitation voltage for loadcell : 12 V, 50 mA
  • Maximum gain up to 40,000
  • Programmable 12-bit resolution ,DC offset voltage (0 ~ 5 V)
  • Second order low pass filter build-in
  • Direct connection to strain gauge type loadcell
  • 8-channel 12 ~ 24 V isolated digital input
  • 7-channel isolated open-collector digital output
  • Programmable 8-bit LED indicator.
  • Command set programming
 
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  • Strain gauge type loadcell measurement
  • Dynamic force on line monitoring system
  • Harsh environment operation
  • Dynamic pressure measurement
 
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  • Toolkit for DOS
  • Toolkit for Windows 95/98
  • Toolkit for Windows NT
  • Toolkit for Windows 2000/XP
  • Toolkit for OCX 95/98
  • Toolkit for OCX NT
  • Toolkit for OCX 2000/XP
  • Driver for LINUX
 
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Analog Input Specifications
Channels
1 loadcell input channel & 1 analog input channel
Resolution
12-bit
Sampling Rate
20 kS/s max
Nonlinearity
+/- 0.01%
Gain error
0.005% of reading maximum
Input Impedance
10000 MOhm // 6pf
Bias current
+/- 2 nA (maximum)
Input offset current
+/- 2 nA (maximum)
CMRR
90 dB (Minimum)
Recommended warm-up time
10 minutes
Sample & hold
On chip
ISO-LDH Input Range
Analog input range
0 ~ 10 V , 0 ~ 1 V , 0 ~ 0.1 V , 0 ~ 0.01 V
Strain Gauge input range
0 ~ 37.5 mV
Resolution
12-bit
Gain input range
400 0~37.5 / 4,000 0~15 / 40,000 0~12.75
ISO-LDL Input Range
Normal input range
0 ~ 10 V, 0 ~ 5 V, 0 ~ 2.5 V, 0 ~ 1.25 V
Loadcell input range
0 ~ 37.5 mV
Loadcell offset voltage adjustment
0 ~ -5 V, 8-bit
Gain input range(mV)
400 0~37.5 / 8,00 0~25 / 1,600 0~18.75 / 3,200 0~15.625
Digital I/O
Digital Input
8 photo-isolated 12~24 V
Digital Output
7 isolated onpen-collector (100mA)
Output
8 TTL/LED
Power
Power Requirements
400 mA max. @ +5 V
Environmental
Operating temperature
0 ~ 50 ¢XC
Storage temperature
-20¢XC ~ 70 ¢XC
Humidity
0 ~ 90% RH, non-condensing
Dimensions
Dimensions (L X W)
190 mm x 122 mm
 
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ISO-LDH High Gain Isolated Strain Gauge Type Loadcell Input Board
ISO-LDL Low Gain Isolated Strain Gauge Type Loadcell Input Board
 
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DN-25 9-pin , 25-pin D-sub Connector Screw Termianl Board
S-50 S-type Load-cell

 
     
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