ACR SmartReader Common Specifications

Multi-channel, Configurable, 8 Bit Data Loggers

Features

• Multiple channels
• Accessible remotely by modem
• Multiple loggers can be linked to form a network
• 32 K memory
• 10-year battery life

Size	107 x 74 x 22 mm (4.2 x 2.9 x 0.9").
Weight	110 grams (3.75 ounces).
Case Materials	Noryl® Plastic.
Operating Limits	-40oC to 70oC (-40oF to 158oF) and 0 to 95% Relative Humidity (non-condensing).
Clock Accuracy	+/-2 seconds per day.
Battery	3.6 volt Lithium, 1 Amp-Hour.
Power Consumption	5 to 10 microamps (continuous).
Battery Life	10-years warrantied (under normal use). Factory replaceable.
External Connector	Removable screw-type terminal strip with Common (-) connection.
Mounting	Magnetic backing or locking eyelet.
Memory Size	32 K (32,767 readings).
Sampling Methods	1. Continuous (First-in, First-out). 2. Stop when full (Fill-then-stop).
Sampling Rates	User selectable rates between 8 seconds to once every 5 days.
Resolution	8 bits (1 part in 256).
PC Requirements	IBM PC or 100% compatible running MS Windows 3.1, '95, '98, or NT, with at 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".
Accuracy Curve	Temperature Sensor Accuracy with ACR SmartReader
Software Specifications	TrendReader - SmartReader Data Logger Software RealTime Graphing Software
Remote & Network communications	ACR SmartReader Networking and Remote Communications

Internal Temperature Sensor Specifications (Common on all models)

Type	Negative Temperature Coefficient Thermistor. 10,000 ohms @ 25oC (77oF).
Tolerance (sensor only)	+/-0.2oC, over the range of 0 to 70oC (+/-0.3oF, over the range of 32 to 158oF).
Range	-40 to 70oC (-40 to 158oF).
Resolution	0.4oC (0.7oF) @ 25oC. Better than 1oC (1.8oF) between -25oC ( -13oF) and 70oC (158oF). Better than 2.0oC (3.6oF) between -40oC ( -40oF) and -25oC ( -13oF).

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