VDIV10:1 10-to-1 Voltage Divider Terminal Input Module


The VDIV10:1 uses precision resistor networks to bring sensors with high output voltages into your datalogger’s common mode range, allowing your datalogger to measure the sensor. The VDIV10:1 divides the sensor’s signal voltage by a factor of ten.

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Benefits and Features

  • Connects directly into datalogger input terminals
  • Easy to install or remove
  • Low power consumption


Detailed Description

The VDIV10:1 contains a 90 kΩ resistor and a 10 kΩ resistor. Both resistors have a ratio tolerance of ±0.02%.

The maximum input voltage into the VDIV10:1 should not exceed ±50 V. Increased input settling time may be necessary to accommodate the relatively high resistance of the voltage divider.

Schematic for VDIV10:1

Hookup for one sensor measured differentially

Hookup for two single-ended sensor measurements


Division Ratio 10:1
Resistors 10 kΩ and 90 kΩ
Ratio Tolerance ±0.02% (@ 25°C)
Power Rating per Element 0.1 W (@ 70°C)
Maximum Ratio Temperature Coefficient 2 ppm/°C (0° to 70°C)
Dimensions 1.5 x 1.5 x 2.7 cm (0.6 x 0.6 x 1.0 in.) for body with prongs
Weight 6 g (0.2 oz)


Datalogger Considerations

The VDIV10:1 uses two adjacent single-ended analog inputs (one differential channel); an adjacent analog ground channel accepts the "ground prong" of the VDIV10:1. Not all datalogger terminal strips have this sequence on all channels, so please check your datalogger's wiring panel to confirm channel assignments, especially if you plan to use multiple terminal input modules.

Please note that if a CR10X will be used to measure thermocouples in the same application, newer CR10X Wiring Panels and the CR10XTCR Reference Thermistor (with its accompanying thermocouple cover) are deep enough to cover the datalogger input channels with a VDIV10:1 attached; older CR10TCRs are not deep enough.


The VDIV10:1 is measured with either the VoltSE or VoltDiff Instruction in CRBasic, and with Instruction 1 (SE Volts) or 2 (DiffVolts) in Edlog. Each VDIV10:1 can be wired to make one differential measurement or two single-ended measurements.

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X CR6 CR300 Series

Compatible Retired Datalogger

CR500 CR510 CR10 CR10X 21X CR23X CR5000 CR7X CR9000

Datalogger Notes:
*User-modifications are required to use the VDIV10:1 with the CR200(X). Contact Campbell Scientific for more information.

Compatible CR9000(X) modules are the CR9050 and the CR9052; the CR9051 is partially compatible.

#As shipped, the prongs on the VDIV2:1 are too short to fit the CR7. If you're determined to use the VDIV2:1 with a CR7, you can solder wire to the prongs, thereby extending their length.

Frequently Asked Questions

Number of FAQs related to VDIV10:1: 3

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  1. These two voltage dividers can handle different maximum input voltages.

    • The VDIV2:1 has a maximum input voltage of 10 V.
    • The VDIV10:1 has a maximum input voltage of 50 V.
  2. The CR1000 can measure analog voltages in the ±5 Vdc range. A voltage divider such as the VDIV2:1 is required to reduce 10 Vdc to an acceptable range. For examples of wiring and programs, see the VDIV10:1/VDIV2:1 manual

  3. The CR1000 has analog inputs that measure voltage in a ±5 Vdc range. To measure a 12 Vdc voltage, a voltage divider is needed. In its simplest form, a voltage divider comprises two resistors. Precision differential voltage dividers, such as the VDIV10:1, are available for this purpose.