The ISO-LD series is a bus-type isolated loadcell input board. The isolation inputs can operate with up to 500Vrms of common-mode voltage. The ISO-LD series features a 12-bit analog-to-digital converter, on board 1 K bytes FIFO buffer , one loadcell signal input channel, one analog input channel, 8-channel 12-24V 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:
- 12-bit programmable offset voltage. Therefore the user can cancel the DC bias and amplify the AC signal
- The isolated structure eliminate the ground loop noise and protect your computer.
- On board FIFO buffer support gap-free A/D conversion under DOS and Windows environment.
- 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.
- AT bus
- 500 Vdc photo-isolation protection
- one channel strain gauge input channel
- Built-in 1K bytes FIFO
- Excitation voltage for loadcell : 12V, 50mA
- Maximum gain up to 40,000
- Programmable 12-bit resolution ,DC offset voltage (0~5V)
- Second order low pass filter build-in
- Direct connection to strain gauge type loadcell
- 8-channel 12-24V isolated digital input
- 7-channel isolated open-collector digital output
- Programmable 8-bit LED indicator.
- Command set programming
- Software
- 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
- Toolkit for LINUX
| Analog Input Specifications |
| Channels |
1 loadcell input channel & 1 analog input channel |
| Resolution |
12-bit |
| Sampling Rate |
20KS/s max |
| Nonlinearity |
±0.01% |
| Gain error |
0.005% of reading maximum |
| Input Impedance |
10,000MW||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 ~ 10V, 0 ~ 1V, 0 ~ 0.1V, 0 ~ 0.01V |
| Strain Gauge input range |
0 ~ 37.5 mV |
| Resolution |
12-bit |
| Gain input range |
400 0 ~ 37.5 4,0000 ~ 15 40,000 0 ~ 12.75 |
| ISO-LDL Input Range |
| Normal input range |
0 ~ 10V, 0 ~ 5V, 0 ~ 2.5V, 0 ~ 1.25V |
| Loadcell input range |
0 to 37.5 mV |
| Loadcell offset voltage adjustment |
0 ~ -5V, 8-bit |
| Gain input range(mV) |
400 0 ~ 37.5 / 8,00 0 ~ 25 / 1,600 0 ~ 18.75 / 3,200 0 ~ 15.625 |
| Loadcell offset voltage adjustment |
0 to 5V, 12 bit resolution |
| Digital I/O |
| Digital Input |
8 photo-isolated 12 ~ 24V |
| Digital Output |
7 isolated onpen-collector (100mA) |
| Output |
8TTL/LED |
| Environmental |
| Operation Temp |
0°C to 50°C |
| Storage Temp |
-20°C to 70°C |
| Humidity |
0-90%, non-condensing |
| Dimensions |
190cm x 122cm |
| Power Requirements |
+5V @ 400mA max. |
| Applications |
| Strain gauge type loadcell measurement |
| Dynamic force on line monitoring system |
| Dynamic pressure measurement |
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