The VOLT 108 is a general-purpose, multiplexed analog measurement module. Designed specifically for static measurement applications, it can also be used for dynamic measurements up to 10 to 100 Hz depending on the application. The VOLT 108 supports all standard analog sensor measurements and easily expands the GRANITE™ data-acquisition system. The VOLT 108 has eight differential or 16 single-ended input channels and two excitation channels. It provides a 12 V and a switched 12 V port and two switched 5 V ports for peripheral control.
Power Requirements | 9.6 to 32 Vdc voltage |
Mounting | Standard 1-in. grid (DIN rail mounting available) |
Estimated Accuracy |
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Number of Channels | 8 differential or 16 single-ended |
Operating Temperature |
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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 | 0.8 kg (1.75 lb) |
Typical Current Drain |
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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 |
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Voltage Excitation | ±5 V (@ 50 mA) |
Current Excitation | ±2.5 mA (±5 V compliance voltage) |
Number of Voltage/Current Excitation Outputs | 2 |
General Purpose Outputs |
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Number of SW5V Outputs | 2 |
SW5V Output Resistance | 30 Ω |
Number of SW12V Outputs | 1 |
Typical Limit of SW12V Outputs | 200 mA |
Minimum Limit of SW12V Outputs | 180 mA |
Number of 12V Outputs | 1 |
Typical Limit of 12V Outputs | 200 mA |
Minimum Limit of 12V Outputs | 180 mA |
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Product | Compatible | Note |
---|---|---|
CR1000X | Requires OS version 4 or greater. | |
CR6 | Requires OS version 10 or greater. |
Product | Compatible | Note |
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GRANITE 10 | Requires OS version 1 or greater. | |
GRANITE6 | Requires OS version 1 or greater. | |
GRANITE 9 | Requires OS version 1 or greater. |
The VOLT 108 is compatible with CPI-enabled data loggers only.
The CPI Calculator is a downloadable Microsoft Excel spreadsheet used to estimate the usage and capacity of a CPI network. The calculator provides an overview on CPI devices including the CDM-A108, CDM-A116, CDM-VW300, CDM-VW305, and the CSAT3B. The calculator can also estimate the measurement speed of the CDM-A108 and CDM-A116 based on the number of channels and measurement parameters.
The CPI Calculator is an estimation tool and will help you better understand and design CPI networks by considering the following:
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