ACR SmartReader Plus 4 Specifications

Four Channel Pressure, Temperature and RH Data Logger

The SmartReader Plus 4 data logger provides easy monitoring and troubleshooting of pneumatic control systems. The unit is completely self-contained with a 1/4" quick-release pressure fitting to allow a fast and trouble-free connection. As an added bonus: SmartReader Plus 4 can also monitor temperature internally, or temperature and RH externally. (RH sensors/probes and thermistor temperature probes sold separately). Features: 12 bit resolution 4 channels 10-year battery life Up to 128 KB memory User-configurable Accessible remotely by modem Network capable Up to 25 samples per second

Product Specifications

No. of channels	Four. (One for ambient temperature, one for pressure, and 2 for the optional Relative Humidity/Temperature Probe).
Calibrated Accuracy	+/-0.5% of full scale @ 25oC (77oF).
Memory Sizes	32 KB and 128KB
Accuracy Curve	Temperature Sensor Accuracy with ACR SmartReader Plus
Common Specifications	ACR SmartReader Plus Common Specifications
Software Specifications	TrendReader - ACR SmartReader Plus Data Logger Software RealTime Graphing Software Talk-Back Software
Remote & Network communications	ACR SmartReader Plus Networking and Remote Communications
Accessories	ACR EH-020A RH/Temperature Probe ACR ET Series Temperature Probe Any NTC Temperature Probe

RANGE	RESOLUTION	PRESSURE ACCURACY	THERMAL ACCURACY
+/-10" H2O	0.006"	+/-2% FS @ 25oC (77oF)	+/-3% FS 0 to 70oC (32 to 158oF)
0 to 5 psi (30 kPa)	0.003 psi (0.02 kPa)	+/-1% FS @ 25oC (77oF)	+/-1.5% FS 0 to 70oC (32 to 158oF)
0 to 30 psi (200 kPa)	0.015 psi (0.10 kPa)	+/-0.5% FS @ 25oC (77oF)	+/-0.5% FS 0 to 70oC (32 to 158oF)
0 to 100 psi (700 kPa)	0.05 psi (0.34 kPa)	+/-0.5% FS @ 25oC (77oF)	+/-0.5% FS 0 to 70oC (32 to 158oF)