ACR JR Data Logger Single Channel Temperature Data Logger
The ACR JR Data Logger is the easiest to use electronic data logger available. With its precision calibrated internal temperature sensor, all you have to do is place the logger in the field and leave it. Once you have gathered the desired information, simply plug the logger into a PC's serial port and view the logged information. That's it!.

Single Channel Temperature Data Logger

ACR JR Data Logger
Type:	Negative Temperature Coefficient Thermistor (NTC). 10,000 ohms @ 25° (77°F)
Range:	-40°C to 85°C. (-40°F to 185°F).
Resolution:	0.4°C @ 25°C. (0.7°F @ 77°F).
Sensor Accuracy:	+/-0.2°C. (+/-0.3°F).

Easy to use, low cost data logger

Size:	33 x 43 x 15 mm (1.3 x 1.7 x 0.6").
Weight:	1 ounce (29 grams).
Case Material:	Polyurethane.
Operating Limits:	-40°C to 85°C (-40°F to 185°F). 0 to 95% RH (non-condensing).
Clock Accuracy:	+/-2 seconds per day.
Battery:	3 volt Lithium; 0.5 Amp-Hour.
Battery Life:	Five years warrantied (under normal use).
Mounting:	Magnetic backing.
Memory Size:	8 K (with compression up to 32 K). Typical 22 days (depending on the rate of temperature change). Maximum 44 days.
Sampling Method:	First-in First-out.
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Sampling Rate:	One reading every 2 minutes.
Resolution:	8 bit (1 part in 256).
PC Requirements:	IBM PC or 100% compatible running MS Windows 3.1, 95, 98, or NT, with a least 2 MB RAM, 2 MB of hard drive disk space and one free serial port.
Product Approvals:	Meets Part 15 for Digital Devices of the Code of Federal Regulations of the Federal Communications Commission (FCC). Meets Class A radiated and conducted emission requirements of Section 2 of the Radio Interference Regulations of Communications Canada. IEC801-2, 3, 4 and EN55011 covering ESD, RFI Immunity, EFT/Burst and Radiated Emissions respectively for the Commission of the European Communities (CE).
Resistance to X-Rays:	Tested for protection against a 160kV dose @ 5mA for 30 seconds (150mA-sec) @ 38 inches F.F.D. (about 100 times that of an airport X-Ray machine). Tested for protection against Gamma Ray (equivalent to 0.137 - 1.38 mega volts) IR 192 - 28 curies @ 30 second exposure source to object distance 5".

PC to ACR JR. Communications
Nothing is simpler to use than the ACR JR. single-channel temperature data logger. The ACR JR. automatically records the temperature every two minutes; no setup is required. To retrieve the data from the JR., run the software program and simply plug the JR. into your PC's serial port. The software will find the logger and then display a graph of the recorded temperature vs. time on your monitor.

Software Features
Logged temperature data is displayed on a scrolling window that permits fine analysis of large data sets. The scroll bar at the bottom of your graph window allows you to pinpoint critical areas of data. Print your temperature graph with ease using any Windows® supported printer or save the data on your hard drive for future reference. Temperature units can be displayed in Celsius or Fahrenheit. If you prefer to use Excel®, Lotus® or other popular spreadsheet programs, data can be exported into several ASCII formats.

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ACR JR Data Logger

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