This product is no longer available and has been replaced by: CR9051E.
CR9050 5-Volt Analog Input Module
Services Available
Repair No
Calibration No
Free Support No


The CR9050 is one of the modules used with our CR9000 and CR9000X dataloggers. It includes 14 differential (28 single-ended) inputs. It also has an onboard platinum resistive thermometer (PRT) and a heavy copper grounding bar for precise thermocouple measurements.

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Benefits and Features

  • Can be added to or removed from CR9000X to support changing measurement needs
  • Very sensitive resolution: down to 1.6 microvolts


Detailed Description

The CR9050 is an I/O module for the CR9000X-series and CR9000-series dataloggers. It includes 14 differential (28 single-ended) analog input channels that measure voltages up to ±5 V and an internal PRT that provide a reference temperature for thermocouple measurements. The CR9050's heavy copper grounding bar and connectors, as well as its case design reduce temperature gradients, which promotes accurate thermocouple measurements. Resolution on the most sensitive range is 1.6 microvolts.

All input wires attach to the CR9050 via screw terminals.


-NOTE- Note: Additional specifications are listed in the CR9000X(C) Specifications Sheet.
Analog Channels 28 single-ended (14 differential)
Analog Voltage Range ±5000 mV
Analog Voltage Accuracy ±(0.07% of reading + 4 A/D counts)
-25° to +50°C
Measurement Resolution To 1.6 μV
Current Drain 25 mA (active)
Standard Operating Temperature Range -25° to +50°C
Extended Operating Temperature Range -40° to +70°C
Dimensions 24.1 x 2.5 x 12.7 cm (9.5 x 1.0 x 5.0 in.)
Weight 547 g (1.2 lb)


Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

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)

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