AI835A
AI835A Thermocouple/mV Input 8 ch
Overview
Description
The AI835/AI835A provides 8 differential input channels for Thermocouple/mV measurements. Measurement ranges configurable per channel are: -30 mV to +75 mV linear, or TC Types B, C, E, J, K, N, R, S and T, for AI835A also D, L and U.
Key Benefits
- 8 differential input channels for thermocouple/mV.
- Channel 8 can be designated as the CJ-channel (4-wire Pt100 RTD)
- Variety of thermocouples with the following characteristics: B, C, E, J, K, N, R, S and T for AI835A also D, L and U
- 15 Bit resolution (A/D)
- Inputs are monitored for wire-break open-circuit
Specifications
- Dimensions
- Width 45 mm Depth 102 mm, 111 mm including connector Height 119 mm Weight 0.22 kg
Variant
- Input impedance
- > 1 MΩ
- Isolation
- Groupwise isolated from ground
- Error
- Max. 0.1%
- Temperature drift
- Typ. 5 ppm/°C, Max. 7 ppm/°C
- Update cycle time
- 280 + 80 * (number of active channels) ms at 50 Hz; 250 + 70 * (number of active channels) ms at 60 Hz
- Maximum field cable length
- 600 meters (656 yards)
- CMRR, 50Hz, 60Hz
- 120 dB
- NMRR, 50Hz, 60Hz
- > 60 dB
- Rated insulation voltage
- 50 V
- Dielectric test voltage
- 500 V a.c.
- Power dissipation
- 1.6 W
- Current consumption +5 V Modulebus
- 75 mA
- Current consumption +24 V Modulebus
- 50 mA
- Current consumption +24 V external
- 0