ACR SmartReader 7 Specifications

Eight Channel Process Signal Data Logger

SmartReader 7 is a versatile data logger for easy recording of common process signal variables. With seven input channels, the logger is ideal for monitoring (through commercially available transducers) a wide variety of measurement parameters. Features: 8 channels User-configurable Accessible remotely by modem Network capable

Product Specifications

No. of channels	Eight. (One internal for ambient temperature and seven external for analog voltage and current loop signals).
Standard Input Ranges	0 to 2.5 volts DC. 0 to 5.0 volts DC (two channels). 0 to 10.0 volts DC. 0 to 200 millivolts DC. 0 to 25 milliamps DC (two channels).
Optional Input Ranges	All external channels 0 to 2.5 volts, 0 to 5 volts, 0 to 10 volts, or 0 to 25mA .
Accuracy	+/-1% full scale.
Input Impedances	Greater than 1 M ohm (200 mV channel). Greater than 1 M ohm (0 to 2.5 V channel). 20 K ohms (0 to 5.0 V channels). 40.9 K ohms (0 to 10.0 V channel). 100 ohms (0 to 25 mA channels).
Maximum Protection      Voltage channels      Current channels	+/-40 volts (reverse-polarity protected). +/- 70 mA (reverse-polarity protected).
Transducer Restrictions	The use of a single power supply is recommended to avoid ground loops or use loop isolators.
Memory Size	32 KB.
Accuracy curve	Temperature Sensor Accuracy with ACR SmartReader
Common Specifications	ACR SmartReader Common Specifications
Software Specifications	TrendReader - ACR SmartReader Data Logger Software RealTime Graphing Software
Remote & Network communications	ACR SmartReader Networking and Remote Communications