Product Description
The SmartReader 9 is a versatile data logger designed for counting and recording digital pulses or switch contact closures. It has two input channels, each with three selectable frequency ranges. Data can be displayed in custom engineering units using the simple equation editor of ACR’s TrendReader® 2 software. It also has one internal channel for recording ambient temperature.
General Specifications
Size
107mm x 74mm x 22mm (4.2" x 2.9" x 0.9")
Weight
110 g (3.75 oz)
Case Material
Noryl® Plastic
Battery
3.6 volt Lithium
External Inputs
Switch Contact Type
Uncommitted switch or relay contacts
Logic Input Type
Active logic signals
Ranges
32, 64 or 128 pulses/second
Minimum Pulse Width
4 milliseconds
Input Voltage
Low = 0 to 0.5 volts DC High = 4.5 to 24 volts DC
Input Impedance
750K Ohm
Internal Temperature Sensor
Type
NTC Thermistor - 10,000 Ohm @ 25°C
Range
-40°C to 70°C (-40°F to 158°F)
Accuracy
±0.2°C over the range of 0°C to 70°C (± 0.3°F over the range of 32°F to 158°F)
Resolution
0.4°C (0.7°F) @ 25°C better than 1°C (1.8°F) between -25°C and 70°C (-13°F and 158°F) better than 2.0°C (3.6°F) between -40°C and -25°C (-40°F and -13°F)