Compact Waterproof Data Logger Temperature / Voltage / 4-20mA / Pulse Count T&D Data Collection Devices The TR-51i with internal sensor provides optimum waterproof and dustproof capabilities. Common Features Warning Monitoring Function Collect Data using our Data Collection Devices For Direct Data Downloading to PC via USB Communication Port TR-50U2 (sold separately) For On-Site Downloading (up to 16 units) Data Collector TR-57DCi (sold separately) Download data via Infrared Communication Graph Display 15 Recording Intervals with Large Logging Capacity Up to 16,000 readings per unit. Select from 15 recording intervals (from 1 second to 1 hour). Example: At a 60-minute recording interval, that gives you 666 days (almost 2 years) of non-stop recording. Temperature Adjustment Function If a reading exceeds the set limit the warning LED will flash and an on-screen error message will appear. Warning display will stay on until data is downloaded. Measurement and error message shown alternately Upper Limit Exceeded (Hi) A data logger built for tough environments Scale Conversion (TR-55i-V / mA / P) Upon the downloading of recorded data, the scale will be automatically converted according to pre-made settings. Graph will be displayed using the desired unit. Two Recording Methods (TR-55i-V / mA) Instantaneous: Records the measured value instantaneously at the set recording interval. Average: Records the average of the measurements taken during the set recording interval. Entering adjustment values beforehand makes it possible to view and record the adjusted measurement values. Preheat Function (TR-55i-V) This supplies power to the sensor immediately before measurement and turns off power until the next measurement. This saves battery life allowing for longer continuous recording.

*1: Battery life depends upon multiple factors including measuring environment, recording interval, and quality of the battery being used. When infrared communication function is enabled, battery life may be further shortened if the unit is used under the inverter type fluorescent lighting. *2: This is the waterproof capacity of the data logger with the sensor connected. The specifications listed above are subject to change without notice.

*1: In the case of a 4-wire sensor, one wire will be left unused. *2: For TR-55i-TC and TR-55i-Pt, sensor inaccuracies are not included. *3: Battery life varies depending upon multiple factors including ambient temperature, recording interval, frequency of communication, and battery performance. All estimates are based on operations carried out with a new battery and are in no way a guarantee of actual battery life. Battery life may be shortened further if the unit is used under inverter type fluorescent lighting. *4: This is the waterproof capacity of the data logger with the Input Module connected....