ACR Electronics SmartReader Plus Reference Manual

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SmartReader Plus Data Loggers

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Summary of Contents for ACR Electronics SmartReader Plus

Page 2 For more information regarding trademarks, see the "Trademark Notices" section of this manual. ACR Systems Inc. assumes no responsibility for errors or omissions, or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it.
Page 3 TRADEMARK NOTICES SmartReader Plus is a Registered Trademark of ACR Systems Inc.
Page 4: Limited Warranty
ACR's policy is not to proceed with any repairs or replacement unless first discussed with ACR's Technical Support Analysts and an RMA (Return Material Authorization) number is...
Page 5: Table Of Contents
..............................Channel Calibration Logger Connection Settings ................................3 SmartReader Plus 1 Temperature Logger ............................26 Description ................................Setup ................................4 SmartReader Plus 2 Temperature & Relative Humidity Logger ............................28 Description ................................Setup ................................Accessories ................................Troubleshooting ................................Relative Humidity Calibration ................................
Page 6 ............................38 Description ................................Setup ................................Pressure Calibration ................................Specifications ................................7 SmartReader Plus 4 Low Pressure Differential and Temperature Logger ............................42 ................................Description Setup ................................SRP4 LPD Pressure Specifications ................................8 SmartReader Plus 5 Thermocouple Logger ............................44 Description ................................
Page 7 ................................Specifications ................................Resistance vs. Temperature Tables ................................Custom Probes ................................18 APPENDIX D Typical SmartReader Plus 3 Connection Diagram ............................91 ................................AC Current and AC Voltage Recording ................................AC Voltage Transducer Specifications 19 APPENDIX E Sample Rates ............................94 How a Data Logger Stores Readings ................................
Page 9 TrendReader 2.0 and its Reference Guide. For important information on how all SmartReader Plus data loggers work and how to use them, read the Introduction to SmartReader Plus chapter. It will give you an overview of how the loggers work and how to configure them for your application.
Page 10: Section I Smartreader Plus Data Logger
TrendReader software must be installed and ready to run prior to making use of the setup instructions in this section of the guide. 1.1.1 Features SmartReader Plus data loggers share many common features that make them useful tools for data collection: · Pocket-sized · Solid-state components - no moving parts ·...
Page 11: Programmed Operation
SmartReader Plus Data Logger long-life lithium battery that will provide years of reliable operation, your SmartReader Plus can work independently from any external power supply or computer. When you are ready to look at the data it has collected, it can transfer all information to your computer through the use of TrendReader software.
Page 12: How To Use Smartreader Plus Loggers
1.1.5 How to Use SmartReader Plus Loggers Using your SmartReader Plus data logger for most applications is a simple process. With proper planning, setup and installation of your data logger, you can be assured that the information you collect will be both correct and useful. The following provides general procedures for using SmartReader Plus data loggers.
Page 13 Test You can directly read the values that your SmartReader Plus data logger is sensing using the Realtime capability of TrendReader software. This test gives you the opportunity to check your logger setup and make any necessary changes before starting the logging session.
Page 14: Specifications
If you are retrieving the logger from the field, bring it back immediately to your computer for analysis. In order to analyze your SmartReader Plus logger's data, you must first transfer a backup copy of its data to your computer. To do this, see Backup in the TrendReader guide. After transferring your information to the computer, the data is automatically copied to disk and time and date stamped.
Page 15 Better than 0.13°C (0.23°F) between -40 and -25°C (-40 and -13°F) Equation: Use Equation 45 in TrendReader software Specifications are subject to change without notice. * The SmartReader Plus 9 does not have an on-board temperature sensor. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 16: Product Approvals
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). Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 17: Smartreader Plus Software Driver
SmartReader Plus Data Logger SmartReader Plus Software Driver TrendReader software uses a software driver to communicate with SmartReader Plus data loggers. The software driver takes the form of two windows. The Status window, shown when you contact the logger, is used to display the settings currently stored in the data logger. The Setup window, shown when you select Edit Setup, is used to alter the current settings and apply the changes to the data logger.
Page 18: Logger Status
SmartReader Plus Data Loggers open, thereby allowing you to make changes in other features. NOTE: SmartReader Plus data loggers can be connected together in a network. For information on networks, see Appendix F Connecting Multiple Loggers. 1.2.1 Logger Status When you contact the logger, the logger status is displayed. The Status line indicates whether the data logger is actively logging, waiting to start or dormant.
Page 19: Logger Sampling
2 minutes. An external power source, such as an active computer communications port, power supply or battery pack, is required to operate the logger. The only memory mode available is "Stop When Full". Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 21 You can set the logger's starting time for up to 6 days, 1 hour, and 39 minutes ahead. To set how long to record, click on the End Time field. Next, click on the small button that Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 23: Logger Alarms
Alternatively, if you enable fast sampling, the alarms are disabled. The alarm parameters are discussed in the following sections. In order to set any of the alarm parameters, alarms must first be enabled. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 24: Delay Before First Call
The Delay Between Calls is the time between successive calls. A logger will continue to dial out after every delay period as long as an alarm condition exists and has not been acknowledged by backing up the logger. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 25: Delay After Backup
Delay After Backup period (if you have fixed the alarm problem but there is time remaining on the delay which is preventing the alarm from being activated), you can clear the logger to clear this delay. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 26: Baud Rate
The baud rates available range from 1200 to 57,600. To set the baud rate, click on the Baud Rate field and select the value from the drop-down list. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 27: Alarm Dialout String
After the pager number and before the identifying code, there must be a pause to allow the receiving station to answer. Enter this pause by typing commas. (For most modems each comma causes a pause of two seconds). Type a code that will identify the logger. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 28: Logger Channels
To see the equation point your cursor over the channel and it will show the channel type and equation. In the Setup window, a channel type tool-tip is displayed when the cursor is pointed over a channel. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 29 If the logger is backed up the channel will be disabled then changes to the equation can be made in the graph using the Lines Tab in Graph Settings. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 31: Logger Connection Settings
Select the RF modem connection setting. Click Edit Connection Settings to bring up the connection settings dialog box. Click on the Preferred Loggers field to pop up the Preferred Loggers form. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 33 SmartReader Plus Data Logger Click on the SRPLogger node. 10. Click on the Cable Type field to pop up the Cable Type form and select the RFA cable. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 34 11. Click on the Block Size field to pop up the Block Size form and enter in the value. Click You may have to experiment with the Block size to maximize throughput since smaller block sizes transmit less data but usually have fewer retries. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 35: Smartreader Plus 1 Temperature Logger
SmartReader Plus Data Logger SmartReader Plus 1 Temperature Logger The SmartReader Plus 1 is an easy-to-use logger for recording temperature in a wide range of applications such as HVAC testing/balancing, property management studies, and transportation of perishable goods. Figure 1-1: SmartReader Plus 1 1.3.1...
Page 36 SmartReader Plus Data Loggers Other Applications For information on how you can monitor resistance or switch status with your SmartReader Plus 1, refer to Appendix A Monitoring Resistance and Switch Status. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 37: Smartreader Plus 2 Temperature & Relative Humidity Logger
SmartReader Plus Data Logger SmartReader Plus 2 Temperature & Relative Humidity Logger A self-contained "air-quality" logger, the SmartReader Plus 2 can be used easily in a wide variety of applications to collect temperature and relative humidity data. Figure 2-1: SmartReader Plus 2 1.4.1...
Page 38: Accessories
(such as in ductwork or under pipe insulation). To use an ET temperature probe with your SmartReader Plus 2 you must first enable the logger's external temperature channel. Connect the remote temperature probe by attaching one wire (of the two wire probe) to the channel marked Temperature and the other wire to the terminal marked Common.
Page 39: Troubleshooting
RH only in one location. They do not, in any way, represent an overall reading. If you decide to check the calibration of your SmartReader Plus 2 RH sensor using a Sling Psychrometer, keep in mind the following: ·...
Page 40: Relative Humidity Calibration
National Institutes of Standards and Technology (NIST). The SmartReader Plus 2 and the EH-020A probe are supplied with a calibration certificate which provides calibration values. These calibration values must be entered and stored in the logger during initial setup.
Page 41 2. Corrosive agents (strong acids S02, H2SO4, Cl2, HCl, H2S etc.) typically 1...10 ppm 3. Weak acids typically 100...1,000 ppm 4. Bases typically 10,000...100,000 ppm Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 42: Smartreader Plus 3 Current, Voltage And Temperature Logger
The output of the probe (which is the input to the SmartReader Plus 3) is conditioned through internal circuitry. The probe produces an output of approximately 260 microamps full scale for each range available on the current probe.
Page 43: Setup To Measure Current
1.5.2 Setup to Measure Current The procedure for setting up your SmartReader Plus 3 is as follows: Connect one or more current probes, specified above, to the current channel inputs on your SmartReader Plus 3. Make sure to observe polarity when making connections.
Page 44: Smartreader Plus Data Loggers
This avoids sparking and prevents the connectors from prematurely deteriorating. The SmartReader Plus 3 is to be used only with approved current probes from Amprobe Instruments (A60FL, A70FL, A65FL and A75FL). These probes provide low voltage DC current in proportion to the signal being measured.
Page 45: Current Probes And Accessories
SmartReader Plus Data Logger 1.5.4 Current Probes and Accessories Each SmartReader Plus 3 has four pairs of input connections for use with the Current Probes from Amprobe Instruments. These clamps can be used with a number of accessories to fit most typical applications.
Page 46: Troubleshooting
1.5.6 Troubleshooting The SmartReader Plus 3 seems to give wrong readings. What is wrong? · If the graphs seem incorrect, check the equation number assigned to the graph file. This equation number must correspond to the model number and setting of the current probe used.
Page 47: Smartreader Plus 4 Pressure, Temperature And Rh Logger
SmartReader Plus Data Logger SmartReader Plus 4 Pressure, Temperature and RH Logger The SmartReader Plus 4 is a general purpose logger that can monitor pressure, temperature and in some models, relative humidity. Figure 4-1: SmartReader Plus 4 1.6.1 Description There are two models of the SmartReader Plus 4 data logger: ·...
Page 48: Setup
(1000kPa) Pressure Measurement Precautions The SmartReader Plus 4 is designed for long-term, trouble-free performance but there are a few precautions to keep in mind to maximize the benefit it can give you. · The pressure sensor in the SmartReader Plus 4 is compatible with non-corrosive gases and dry air.
Page 49: Pressure Calibration
(under clean conditions). You should check your SmartReader Plus 4 periodically and, if necessary, recalibrate the pressure sensor. In the event that you wish to confirm the pressure calibration of your SmartReader Plus 4 logger, you can perform your own calibration using the adjustment provisions explained in TrendReader software.
Page 50: Specifications
SmartReader Plus Data Loggers 1.6.4 Specifications The following specifications apply to the pressure sensors used in the SmartReader Plus 4: Type: Silicon piezoresistive strain gauge Max. Pressure: 4 x FS Media: Noncorrosive gases and dry air Temp. Range: Operating: -40 to 70°C (-40 to 158°F) Compensated: 0 to 70°C (32 to 158°F)
Page 51: Smartreader Plus 4 Low Pressure Differential And Temperature Logger
SmartReader Plus Data Logger SmartReader Plus 4 Low Pressure Differential and Temperature Logger The SmartReader Plus 4 is a logger that can monitor low gauge and differential pressures and temperature. Figure 4-3: SmartReader Plus 4 Low Pressure Differential 1.7.1 Description The SmartReader Plus 4 LPD is a two-channel data logger with internal pressure and temperature sensors.
Page 52: Srp4 Lpd Pressure Specifications
Pressure Ranges and their Equations Range in W.C. Equation Accuracy -0.5 to +0.5" ± 0.05" -1 to +1" ± 0.05" -2 to +2" ± 0.05" -5 to +5" ± 0.1" -10 to +10" ± 0.1" Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 53: Smartreader Plus 5 Thermocouple Logger
Specifications section. 1.8.2 Setup The internal thermistor temperature channel for the SmartReader Plus 5 is used to simulate a reference junction for the thermocouples - it must always be enabled. Channel Description Equation...
Page 54 If they are touching or are fastened to a conducting surface like a metal frame, some looping can occur and the readings may fluctuate. They must be insulated or prevented from making contact with each other electrically. Do not use grounded thermocouples. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 55: Specifications
Specifications are subject to change without notice. 1.8.5 Manual Calibration A simple way to manually adjust the calibration values on a SmartReader Plus 5 thermocouple logger follows. For each active channel: Install the thermocouple and set the proper equation number for that thermocouple type.
Page 56: Smartreader Plus 6 Thermocouple Logger
The SmartReader Plus 6 has seven external thermocouple temperature channels and one internal thermistor temperature channel for cold-junction compensation. 1.9.2 Setup The internal thermistor temperature channel for the SmartReader Plus 6 is used to simulate a reference junction for the thermocouples - it must always be enabled. Channel Description...
Page 57: Use
-200 to 400°C 0.40°C (0.75°F) (-325 to 750°F) 0 to 1450°C 1.0°C (1.8°F) (32 to 2642°F) -50 to 680°C 0.24°C (0.44°F) (-58 to 1250°F) Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 58: Manual Calibration
SmartReader Plus Data Loggers 1.9.5 Manual Calibration A simple way to manually adjust the calibration values on a SmartReader Plus 6 thermocouple logger follows. For each active channel: Install the thermocouple and set the proper equation number for that thermocouple type.
Page 59: Smartreader Plus 7 Process Signal Logger
1.10.1 Description The SmartReader Plus 7 can measure and record data from five separate channels of analog DC voltage covering the ranges of 0 to 200 millivolts, 0 to 2.5 volts, 0 to 5 volts and 0 to 10 volts and from two DC current channels covering the range of 0 to 25 milliamps.
Page 60 (make them change their output) to ensure that everything works. If it does, then you are ready to place your assembly in the field to start logging. Channel Description Equation Internal Temperature 25 mA 25 mA 200 mV 2.5 V 10 V Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 61: Choosing Input Channels
(1/4096 x 100%) which produces a very detailed graph in most applications. The SmartReader Plus 7 can be used for measuring signals with a full scale output as low as 20mV on the 200mV channel (this translates to 1 part in 410 which is better than eight bit resolution);...
Page 62: Customizing Input Ranges
In most cases, these channels will need to be fitted with external resistors. The resistor value that you will require to modify each SmartReader Plus 7 input channels is selected by inserting your special input requirements into a simple equation. The following sections detail these equations and the method of tying in these resistors.
Page 63 The 200mV channel can be modified to span higher ranges (greater than 200mV DC) by adding two resistors to the input terminals as shown in Figure 7-4. The value of the resistor Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 64 P = Minimum Power Rating of resistor (in watts) Iini= Maximum amperage expected through resistor (in Amps) R = Resistor value (in ohms) For example, a 20 ohm resistor calculated to measure currents up to 50mA will require a Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 65 R = 200 / I Resistors Resistors that can be used with the SmartReader Plus 7 are readily available at most electronic parts supply stores. Ask for precision 1% metal film resistors with a temperature coefficient of less than 500ppm. The most common ones are quite small and made in the form of a cylinder with axial leads.
Page 66: Selecting Transducers And Transmitters
For a transducer to be useful, the retransmitted signal must be compatible with standard instrumentation. For the SmartReader Plus 7 logger, this can be either in the form of an analog DC voltage or current. Many compatible transducers exist for measuring such variables as temperature, relative humidity, pressure, speed, pH and more.
Page 67: Specifications
Four-wire transducers fall into two categories: line-type and Wheatstone bridge types. No more than one line-type transducer can be attached to a SmartReader Plus 7 unless it has an isolated output (no electrical connection to the line). More than one bridge-type transducer can only be hooked to a SmartReader Plus 7 if each has an isolated power supply.
Page 68 (both are reverse-polarity protected) Transducer Restrictions: The use of one power supply common only is recommended to avoid ground loops or use loop isolators. Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 69: Smartreader Plus 8 Eight-Channel Temperature Logger
SmartReader Plus Data Logger 1.11 SmartReader Plus 8 Eight-Channel Temperature Logger The SmartReader Plus 8 is a versatile logger for recording temperatures in a wide range of environmental and industrial applications. It can record up to eight temperature channels simultaneously.
Page 70 The ET Series Temperature sensors are thermistor probes that can be used easily with your SmartReader Plus 8 for remote temperature measurements. The advantage of these probes is that they can be used for a wide range of temperatures, are very versatile (they can be used to record liquid or surface temperatures) and their small size permits them to be placed in hard-to-get-at locations such as in ductwork or under pipe insulation.
Page 71: Smartreader Plus 9 Pulse Logger
The SmartReader Plus 9 has two channels. The channels can count the opening and closing of external switch contacts and/or the occurrence of DC voltage pulses. Each channel has a selectable slow or fast input. The SmartReader Plus 9 can only count pulses from one input at a time on each channel.
Page 72: Setup And Use
The minimum pulse length and minimum interval between pulses must be 2 milliseconds for the slow input and 10 microseconds for the fast input. For the SmartReader Plus 9 to register a count, the input voltage must go from a low level to a high level and back again to a low level.
Page 73 Contacts: Sealed gold-plated recommended Voltage Input Input-type: Active logic signals Input Voltage: 0 to 0.5 volts DC low 4.5 to 24 volts DC high Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 74: Smartreader Plus 10 Rtd Temperature Logger
SmartReader Plus Data Loggers 1.13 SmartReader Plus 10 RTD Temperature Logger The SmartReader Plus 10 is a temperature logger with four channels: an internal thermistor channel and three external channels specifically designed for use with RTD (Resistance Temperature Detector) temperature probes.
Page 75: Specification Of Rtd Channels
Resolution (1000 W): ± 0.5 W * For internal channel specifications, please see Common Specifications SmartReader Plus loggers ** Temperature compensated for the range of -20 to 80°C (-4 to 176°F) Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 76: Conservation Logger Temperature, Rh And 5V Input Logger
The Flash Delay timer will be reset if the channel that reported the alarm returns to normal operating conditions (within the preset tolerances) before the timer reaches zero. If a threshold is crossed again the delay timer will restart. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 77: Setup
In the event that you wish to confirm the RH calibration of your sensor, you can perform your own field test. Refer to Appendix B Temperature and Relative Humidity Calibrations for more information on RH testing. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 78: Troubleshooting
SmartReader Plus Data Loggers Interchangeable replacement RH sensors for loggers are available through your dealer. For best accuracy, it is recommended these be calibrated together with the logger - consult your ACR representative for price and availability of this service. 1.14.5 Troubleshooting If you are getting what appear to be wrong readings, consider the following before recalibrating the sensors.
Page 79 H2S etc.) typically 1...10 ppm 3. Weak acids typically 100...1,000 ppm 4. Bases typically 10,000...100,000 ppm External Sensors(2): Range: Any two sensors with a 0-5 VDC output Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 80: Appendix A Monitoring Resistance And Switch Status
1.15.2 Monitoring Switch Status You can also use your SmartReader Plus 1, 2, 4 and 8 model loggers to record the status of uncommitted mechanical switch contacts (see Figure A-1). The switch you want to monitor must be a "dry" contact, which means that it must have no connection to any type of voltage, power or ground.
Page 81 The type of graph produced when monitoring switch status is a square wave that rises to a maximum value when the switch is closed, and falls to a minimum value when the switch is open. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 82: Appendix B Temperature And Relative Humidity Calibration
Fill the bucket with the crushed or chipped ice. Add water so that it overflows. Add more ice until it is tightly packed right to the bottom of the bucket (allowing water to overflow). Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 84 (using the custom thermistor equation) into the same graph. Both lines should match perfectly. 12. Calibrate the logger Enter the new calibration values into the logger, set the equation to 45 and save the new changes. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 85: Relative Humidity Calibration
EH-020A module, ensure it is properly connected to the logger, and the external RH and temperature channels are enabled. Start the test chamber at 5% RH and place your logger (SmartReader Plus 2 or 4) or EH-020A probe into the test chamber. Wait 20 minutes.
Page 86 Cover the box with cardboard in which 6cm (2.5") diameter holes have been cut to allow access to the tops of the jars for insertion of the logger or RH module. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 87 12. Now enter the same values by revising the logger file and view the corrected graphs. 13. If the results are satisfactory, save the calibration changes to the logger (remember to set the RH channel's equation number back to 71). Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 88: Appendix C Thermistor Temperature Probes
1.17.1 Thermistor Temperature Probes The SmartReader Plus 1, 2, 4 and 8 data loggers can record temperature from a wide variety of external thermistor temperature probes. You can use the standard thermistor probes ACR makes available or you can use your own.
Page 89: Setup And Use
ET series thermistor probes are easy to use and setup with your loggers. To make a probe work with your particular logger, follow the instructions for using remote thermistor probes in the chapter that deals with your SmartReader Plus model. After connecting your thermistor, make sure: ·...
Page 90: Specifications
C-1 over the range of 0 to 70°C (32 to 158°F) ±0.5°C (±0.9°F) from -35 to 0°C (-30 to 32°F) ±0.5°C (±0.9°F) from 70 to 120°C (158 to 248°F) Cable: 6m (20ft) standard length with a Teflon® protective jacket; Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 91 ±0.2°C (±0.4°F) from 0 to 55°C (32 to 130°F) ±0.6°C (±1.1°F) from -50 to -30°C (-58 to -22°F) ±0.3°C (±0.54°F) from -30 to 0°C (-22 to 32°F) Cable: 3m (10ft) standard length with Teflon® protective jacket; red Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 92 Refer to Figure C-3 Accuracy: ±0.5°C (0.9°F) from the temperature values listed in Table C-1 over the range of 10 to 170°C (50 to 335°F) Cable: 6m (20ft) standard length with twisted-pair Teflon® insulated Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 93 ±1°C (1.8°F) from the temperature values listed in Table C-1 over the range of 70 to 255°C (155 to 490°F) Cable: 6m (20ft) standard length with twisted-pair moisture-proof Teflon®- coated glass yarn wire; white leads are stripped and Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 94: Resistance Vs. Temperature Tables
The following table lists the Resistance vs. Temperature characteristics of the ET series thermistor probes as they relate to use with the SmartReader Plus 1, 2, 4 and 8 loggers. For each thermistor probe model the table documents the complete set of temperature readings and corresponding thermistor resistances possible for the logger's eight most significant bits.
Page 99: Custom Probes
Contact your dealer for recommendations. Writing Your Own Thermistor Equations Each thermistor temperature probe you use with SmartReader Plus data loggers must be associated with a standard or custom equation in TrendReader software. This equation translates the internal digital logger readings for the specific thermistor, or thermistor type, into the units of your choice (e.g.
Page 100: Appendix D Typical Smartreader Plus 3 Connection Diagram
1.18.1 AC Current and AC Voltage Recording ACR Systems stocks voltage transducers. These devices connect directly to AC voltage sources, and produce a linear output of 0-5V DC directly proportional to the input voltage. They are average-sensing transducers calibrated to indicate the RMS voltage.
Page 101: Ac Voltage Transducer Specifications
1500 VRMS at 60Hz Isolation: Complete Input/Output/Case Surge Withstand: ANSI/IEEE C37.90.1 Maximum Net Weight: VT110A2-RS: 14oz, (0.4kg) 3588-2-RS: 28oz, (0.8kg) Approximate Dimensions: VT110A2-RS: 3.1"W X 2"D X 4.1"H 79 X 51 X 104mm) Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 102 SmartReader Plus Data Loggers 3588-2-RS: 4.4"W x 3.8"D x 4.7"H (112 x 97 x 119mm) Figure D-2: 120V Voltage Transducer Figure D-3: 480V Voltage Transducer Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 103: Appendix E Sample Rates
The time spans depend on the number of channels enabled and the length of the sample rate. A SmartReader Plus-32K has a memory capacity of 21,500 readings. A SmartReader Plus-128K can store 87,000 readings and a 1.5 MB version can store 1,048,000 readings.
Page 104 2 min. 5 min. 10 min. 30 min. 1 hr. 2 hrs. 1791 4 hrs. 3583 Table F-2: SmartReader Plus-32K Sample Rate Table - Two Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0.1 sec. 0.2 sec. 0.5 sec.
Page 105 1 min. 2 min. 5 min. 10 min. 30 min. 1 hr. 2 hrs. 4 hrs. 1194 Table F-4: SmartReader Plus-32K Sample Rate - Four Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0.1 sec. 0.2 sec. 0.5 sec.
Page 106 SmartReader Plus Data Loggers Table F-5: SmartReader Plus-32K Sample Rate - Five Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0.1 sec. 0.2 sec. 0.5 sec. 1 sec. 2 sec. 5 sec. 8 sec. 20 sec. 1 min.
Page 107 SmartReader Plus Data Logger 2 hrs. 4 hrs. Table F-7: SmartReader Plus-32K Sample Rate - Seven Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0.1 sec. 0.2 sec. 0.5 sec. 1 sec. 2 sec. 5 sec. 8 sec.
Page 109: Appendix F Connecting Multiple Loggers
APPENDIX F Connecting Multiple Loggers Connecting Multiple Loggers 1.20.1 Network Configurations SmartReader Plus data loggers can be connected in three network configurations: · the Basic Network · the Modular Network · the Shielded Network The Basic Network can accommodate up to three loggers and a total cable length of 100 feet (30m).
Page 110: Basic Network
Connect the first logger to your computer (or remote modem) using the IC-101 interface cable. If you are connecting to a modem, refer to the TrendReader guide for information on how to set up a modem. Connect the loggers together with extension cables (CB-020). Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 111: Modular Network
Connect the IC-101 to the first logger, and all the loggers to each other, using Modular Flat Cable. Connect the Network Power Supply (PS-201) to the last logger using the available end of the Y-adaptor cable. Plug the power supply into an electrical outlet. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 112: Shielded Network
· interference from electrical equipment lack of external power supply · If you have problems communicating with loggers on a network please try the following steps: Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 113 Use the PS-201 Power Supply connected to the last logger on the network, or anywhere along the line, wherever the lone voltage may sag below 4.5VDC. Reroute the cable (to avoid electrical interference). Use shielded cable. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 114 Relative Humidity Probe 28, 38, 42, 73 RH 73 - T - Sensor 28, 38, 42 Temperature 44, 47 Probe 26, 28, 38, 42, 60, 65, 73, 79 Resistance Temperature Detector 65 Thermistor 26, 60, 73, 79 Copyright © 2010 ACR Systems Inc. All Rights Reserved.
Page 117 ACR Systems Inc. Building 210 - 12960 84th Ave. Surrey, British Columbia, Canada V3W 1K7 Telephone: (604) 591-1128 North American Toll Free: 1-800-663-7845 Fax: (604) 591-2252 General Enquiries Email: enquiry@acrsystems.com Sales Department Email: sales@acrsystems.com Customer Service Email: customerservice@acrsystems.com www.acrsystems.com...

ACR Electronics SmartReader Plus Reference Manual

Section I Smartreader Plus Data Logger

Smartreader Plus 7 Process Signal Logger

Smartreader Plus 8 Eight-Channel Temperature Logger

Smartreader Plus 9 Pulse Logger

Smartreader Plus 10 RTD Temperature Logger

Conservation Logger Temperature, RH and 5V Input Logger

APPENDIX A Monitoring Resistance and Switch Status

APPENDIX B Temperature and Relative Humidity Calibration

APPENDIX C Thermistor Temperature Probes

APPENDIX D Typical Smartreader Plus 3 Connection Diagram

APPENDIX E Sample Rates

APPENDIX F Connecting Multiple Loggers

Quick Links

Troubleshooting

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Summary of Contents for ACR Electronics SmartReader Plus

Table of Contents