Liquid Instruments Voltage Datalogger

Liquid Instruments Voltage Datalogger

Voltage Dataloggers (or Data Logger, Data Recorder, Data Acquisition) capture voltage signals over time for study and review later.

Benefits of Dataloggers/Data Recorders

• Quiet, unattended 24/7 operation
• Simple to setup and operate. Many portable models available
• Wide variety of measurement types and measurement speeds possible
• Help troubleshoot and identify problems in many fields
• Steady declining cost

Parts of a Voltage Datalogger/Data Recorder

• Voltage jacks
• A/D or analog to digital converter and signal conditioning electronics
• Non-volatile storage memory for the collected data and a method to specify the storage rate and on some models the scan interval
• PC Communications or other method to move the data to a computer and to configure the unit
• Optionally a local display and keypad. Not always needed, so “blind” units are a cost saving

Considerations when purchasing a voltage datalogger

• TRMS capability
• Monitor cycle frequency and duration
• Logging duration and interval
• Sampling rate (some units may sample at one rate but log at a slower rate until a programmed alarm is tripped, for example)
• CAT safety rating
• Intermittent problem detection
• Harmonics