ACR SmartReader 9
Three Channel Pulse Data Logger
See: SRP009128K

  • Three Channels
  • Count digital pulses or dry switch contact closures (i.e. on/off, open/close)
  • User selectable frequency ranges
  • 8-bit resolution
  • 10-year battery life
  • Remote access via modem or Ethernet
  • Network capable (connect up to 10 data loggers)
  • User configurable

Click here for a larger image of the ACR Systems SmartReader9!Click for larger image
ACR SmartReader 9 Shown

Product Information

Datasheet 81 KB
Memory Size

PDF Help

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® Standard software. It also has one internal channel for recording ambient temperature.
SmartReader 9 Specifications
No. of Channels
  • One for Ambient Temperature
  • Two for externally-generated pulse signals or dry switch contact closures
Voltage Inputs
Input Type: Active logic signals
Input Voltage: Low = 0 to 0.5 volts DC
High = 4.5 to 24 volts DC
32 pulses/second
64 pulses/second
128 pulses/second
Clock Accuracy +/- 2 seconds per day
Sampling Methods 1. Continuous (First-in, First-out)
2. Stop when full (Fill then stop)
Sampling Rates User selectable rates from 8 seconds to once every 5 days
Operating Limits -40 to 70°C (-40 to 158°F) and 0 to 95% relative Humidity
Accuracy +/- 1% of full scale
Input Impedance 750K ohms
Minimum Pulse Width 4 milliseconds
Switch Contact Closure Input Input type: Uncommitted switch or relay contacts
Memory Size 32 KB (32,767 readings)
Resolution 8-bit
External Connector Removable screw-type terminal strip with common (-) connection
General Specifications Size 60 mm x 48 mm x 19 mm (2.4" x 1.9" x 0.7")
Mounting Magnetic backing and locking eyelet
Case Material Noryl plastic
Power Source Battery 3.6 volt Lithium
Battery Life 10 Years under normal use
Internal Temperature Sensor Type NTC thermistor (10,000 ohms @ 25°C [77°F])
Range -40 to 70°C (-40 to 158°F)
Accuracy +/- 0.2ºC over the range: 0 to 70ºC (+/- 0.3ºF over the range: 32 to 158ºF)
Resolution 0.4ºC (0.7ºF) @ 25ºC; better than 1ºC (1.8ºF) between -25 and 70°C (-13º and 158ºF); better than 2.0ºC (3.6°F) between -40 and -25°C (-40ºF and -13ºF)
PC Requirements
Processor/Operating System IBM PC or 100% compatible running Windows 3.1, '95, '98, 2000, ME, NET, XP
Available Hard drive space At Least 2MB
Memory At Least 2MB
Communication Ports 1 Free Serial Port
Basic Software: TrendReader 2 System Requirements (Required for Standard use)
Processor Pentium II-350MHz or Faster
Operating System Windows 2000 SP4, XP SP2
Available Hard drive space At Least 250 MB of Hard disk space
Memory 128 mb of Ram (256 MB Recommended)
Communication Ports USB or Serial Port, dependant on interface cable
Internet Browser Internet Explorer 6 or higher
Screen resolution 1024 x 768 or higher
Additional Equipment Mouse or other pointing device
More info More info on the TrendReader Standard 2>>
Ordering Information
ACR TrendReader 2 Software required for usage
Model Description Buy Online Price
0 -10" H20
MFR ID: 01-0037
ACR Systems SR-009 SmartReader 9 - 32 KB Two channel, 8 bit, 32 KB data logger Discontinued
See: SRP009128K
Model Description Buy Online Price
MFR ID: 01-0228
ACR Systems TRS2-FULL INSTALL TrendReader 2 Full Install CD. (Latest version) Buy Now $109.00
TRS2UPGRADE  ACR Systems TRS2-UPGRADE TrendReader 2 Upgrade CD. (Requires a previous version of TrendReader Standard.) Discontinued
TRS2WIC101  ACR Systems TRS2-W/IC-101 TrendReader 2 Interface Package (IC-101) Software CD & Serial Port Interface cable for SR/SRP data loggers Discontinued
MFR ID: 01-0226
ACR Systems TRS2-W/IC-102 TrendReader 2 Interface Package (IC-102) Software CD & USB Interface cable for SR & SRP data loggers Buy Now $189.00
Included Accessories
  • 1 - Users guide
Optional Accessories
MA100 ACR Systems MA-100 Modem-Logger Int. Cable Adapter (MA-100) Adapts the IC-101/LIC-101 logger interface cable for use with analog Telco modems Discontinued
USMC  ACR Systems USM-C Logger/Network Modem (Computer Station) Pre-programmed, external PC Telco modem for communicating remotely with single or networked loggers. North American version Discontinued
USMR  ACR Systems USM-R Logger/Network Modem (Remote Station) Pre-programmed, external remote Telco modem for communicating remotely with single or networked loggers. North American version Discontinued
PC Interface Cables
IC101  ACR Systems IC-101  9-pin PC serial port to logger interface cable. Compatible with SmartReader & SmartReader Plus loggers Discontinued
MFR ID: 01-0088
ACR Systems IC-102 USB port to logger interface cable. Compatible with SmartReader &  SmartReader Plus loggers Buy Now $99.00
MFR ID: 31-0024
ACR Systems CB-020 25' 20' stereo cable extension for an IC-101 cable, 8 port network interface cable, or SmartReader Plus stereo style network Buy Now $26.00
MFR ID: 31-0009
ACR Systems SC-004 Replacement 6' cable for old-style IC-101 cables with removable stereo cables. Male to male connection Buy Now $6.50
GLS ACR Systems GLS Logger Protective Sock Protective Gortex® sock for protecting loggers from debris and contaminants. Ideal for relative humidity loggers and probes Discontinued
MFR ID: 01-0106
ACR Systems SC-100 General Purpose, locking, customizable logger and accessory storage case,  Briefcase style. Buy Now $119.00
MFR ID: 01-0057
Size: 127 x 127 x 76mm . Buy Now $110.00
ACR Systems WB-100 NEMA 4X clear-faced weatherproof box for all ACR loggers
WBC100 ACR Systems WBC-100 Weatherproof Box Self-Sealing Connectors Additional self-sealing connectors for the Weatherproof Logger Box. (Catalog# 21-0003) Discontinued
Power Supplies
MFR ID: 01-0078
ACR Systems BP-101 Portable power supply for SmartReader Plus data loggers for sampling faster than 8 seconds. Buy Now $56.00
MFR ID: 01-0165
ACR Systems PS-201-NA 120V N/A 120V AC to 5V DC power supply for SmartReader Plus networks with min. of 3 loggers or 50' of network cable Buy Now $69.00
Other Accessories
MFR ID: 29-0004
ACR Systems TB-11 Terminal Block - 11 Pin (RoHS) 11-pin female terminal block for SmartReader/SmartReader Plus sensor inputs. Buy Now $15.00
MFR ID: 29-0013
ACR Systems STR-11 Terminal Block Strain Relief (RoHS) Strain relief for sensors attached to SmartReader/SmartReader Plus 11-pin terminal blocks. Buy Now $16.00
00-0060 ACR 00-0060 Terminal Block Screwdriver. Flat screwdriver for tightening terminal block on SmartReader/SmartReaderPlus  Buy Now $3.00