The VOLT 116 is an analog input module that allows you to easily expand your Campbell Scientific data acquisition system. The VOLT 116 has 16 differential or 32 single-ended input channels and four excitation channels. It provides two 12 V ports and two switched 12 V ports for powering your peripherals, as well as four switched 5 V ports for peripheral control. The VOLT 116 features a 24-bit, analog-to-digital converter and a low-noise, analog front-end to provide you with superior analog measurements. This module also supports period average measurements and includes both current and voltage excitation channels.
Benefits and Features
- 24-bit ADC and low-noise analog inputs
- Channel count expansion via the CPI bus
- Scales up the number of channels without adding measurement time
- Easier to program than multiplexers
- Programmable noise rejection
- CANbus 2.0 A/B output available
- USB 2.0 interface for PC-based operation
Specifications
| Mounting | Standard 1-in. grid (DIN rail mounting available) |
| Operating Temperature |
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| Power Requirements | 9.6 to 32 Vdc voltage |
| Estimated Accuracy |
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| Number of Channels | 16 differential or 32 single-ended inputs |
| Analog Inputs | 32 single-ended or 16 differential (with ±5000 mV, ±1000 mV, ±200 mV ranges 24 bit ADC) |
| Maximum Multiplexed Sample Rate | 3.0 kHz (using fast [100 μs] input setting) |
| Maximum Burst Sample Rate | 30 kHz |
| Input Range | ±5000 mV, ±1000 mV, and ±200 mV |
| Period Averaging | Traditional period averaging on analog input channels |
| CPI | For data logger connection. Baud rate selectable from 50 kbps to 1 Mbps. (Allowable cable length varies depending on baud rate, number of nodes, cable quality, and noise environment, but can be as long as 700 m under proper conditions.) |
| USB | USB 2.0 full speed connection available for attaching to a PC. (Port is used to configure the module and download updates via our Device Configuration Utility.) |
| Warranty | One year against defects in materials and workmanship |
| Dimensions | 20.3 x 12.7 x 5.1 cm (8 x 5 x 2 in.) |
| Weight | 0.9 kg (1.95 lb) |
| Typical Current Drain | |
| Sleep | <1 mA |
| Active 1 Hz Scan | 2 mA (estimated)
Assumes one single-ended measurement with the first notch frequency (fN1) at 30 kHz |
| Active 20 Hz Scan | 20 mA
Assumes one single-ended measurement with the first notch frequency (fN1) at 30 kHz |
| Voltage/Current Excitation Outputs | |
| Voltage Excitation | ±5 V (@ 50 mA) |
| Current Excitation | ±2.5 mA (±5 V compliance voltage) |
| Number of Voltage/Current Excitation Outputs | 4 |
| General Purpose Outputs | |
| Number of SW5V Outputs | 4 |
| SW5V Output Resistance | 30 Ω |
| Number of SW12V Outputs | 2 |
| Typical Limit of SW12V Outputs | 200 mA |
| Minimum Limit of SW12V Outputs | 180 mA |
| Number of 12V Outputs | 2 |
| Typical Limit of 12V Outputs | 200 mA |
| Minimum Limit of 12V Outputs | 180 mA |
