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Voltage range for CR1000x


Nichol Jul 2, 2023 12:20 PM

Sensor: SP Lite2 (Pyranometer)

The voltage range used in my program is mv200 for CR1000x

VoltDiff(SlrW,1,mV200,1,True,0,50,14.7929,0)'(1000/C) C=67.6 (W/m-2)

1. But the voltage range stated in Campbell manual (SP Lite2
Silicon Pyranometer
March 2010) showed differences as below

"Normally the 500 mV range for the 21X and CR7, the 250 mV range for the
CR800, CR1000, CR10(X) and CR500/CR510, and the 200 mV range for the
CR3000 and CR23X are suitable"

2. Voltage range stated in CR1000x manual (Revision: 04/22/2022) as shown below

The following example illustrates the effect percent-of-reading and offset have on measurement accuracy. The effect of offset is usually negligible on large signals.
Example:

Sensor-signal voltage: approximately 1050 mV

CRBasic measurement instruction: VoltDiff()

Programmed input-voltage range (Range) : mV 5000 (±5000 mV)

Input measurement reversal (RevDiff): True

Data logger circuitry temperature: 10° C

3.How about CR310 voltage range? Voltage range?

Anyone can help to confirm?

Regards,

Nichol


KyraPaucek Dec 4, 2023 06:39 AM

The voltage range used in your program is mv200 for CR1000x. According to the Campbell getting over it manual for SP Lite2 Silicon Pyranometer, the voltage range for CR1000 is 250 mV. The voltage range for CR310 is not mentioned in the sources you provided. However, according to the Campbell Scientific website, the CR310 has a measurement range of 0 to 2^32.

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