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Overview
The CVD20 provides terminal strip connections and voltage reduction for up to six single-ended or six differential channels. Voltage reduction is 20-to-1.
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Detailed Description
The CVD20 provides 6 single-ended or six differential channels for connecting sensors that have a higher voltage output than what a datalogger can measure. The CVD20 contains resistors that divide the sensor's signal voltage by a factor of 20.
Compatibility
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
Dataloggers
| Product | Compatible | Note |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR1000 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR206X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR295X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) | ||
| CR9000X (retired) |
Additional Compatibility Information
Data Logger Considerations
Each CVD20 can be wired to divide six differential or six single-ended voltage levels.
Programming
When using CRBasic, the CVD20 is measured with either the VoltSE or VoltDiff instruction. When using Edlog, the CVD20 is measured with either Instruction 1 (SE Volts) or Instruction 2 (DiffVolts).
Specifications
| Number of Channels | 6 single-ended, 6 differential |
| Division Ratio | 20:1 |
| Resistance | 1 kΩ and 19 kΩ |
| Tolerance | Ratio: ±0.1% (@ 25°C) |
| Dimensions | 9.4 x 6.9 x 3.8 cm (3.7 x 2.7 x 1.5 in.) |
| Weight | 91 g (3 oz) |