AEMC SDL-A301 User Manual

Sentinel current data loggers
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SENTINEL
®
CURRENT
CURRENT
DATA LOGGERS
DATA LOGGERS
E N G L I S H
User Manual

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Summary of Contents for AEMC SDL-A301

  • Page 1 SENTINEL ® CURRENT  CURRENT DATA LOGGERS DATA LOGGERS E N G L I S H User Manual...
  • Page 2 The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer. For recalibration, please use our calibration services. Refer to our repair and calibration section at www.aemc.com. Serial #: ______________________________ Catalog #: ______________________________...
  • Page 3 READ CAREFULLY BEFORE USING NOTE: The Sentinel Loggers that are equipped with rechargeable NiMH batteries are designed to be used with the power adapter plugged in. When not plugged in or during a power failure, the bat- teries will work up to 10 hours. It is recommended that you keep the logger plugged in to avoid battery drainage.
  • Page 4: Table Of Contents

    Table of Contents INTRODUCTION ..................4 1.1 International Electrical Symbols ..........4 1.2 Definition of Measurement Categories ........5 1.3 Receiving Your Shipment ............5 1.4 Ordering Information ..............5 1.5 Accessories and Replacement Parts ........6 1.5.1 Sensors Compatible with Model SDL-A401 ....7 1.5.2 Current Probes Compatible with Model SDL-A402 ..7 PRODUCT FEATURES ................
  • Page 5 MAINTENANCE ................... 26 5.1 Changing the Alkaline Batteries ..........26 5.2 Recharging the Batteries ............26 5.3 Replacing the Rechargeable Batteries ........27 TROUBLESHOOTING ................28 GLOSSARY ..................29 Repair and Calibration ................31 Technical and Sales Assistance ............31 Limited Warranty ...................32 Warranty Repairs ...................32...
  • Page 6: Introduction

    CHAPTER 1 INTRODUCTION WARNING These safety warnings are provided to ensure the safety of personnel and proper operation of the instrument. • Read the instruction manual completely and follow all the safety infor- mation before attempting to use or service this instrument. •...
  • Page 7: Definition Of Measurement Categories

    Save the dam- aged packing container to substantiate your claim. Ordering Information UNITS Sentinel AC Logger Model SDL-A301 ......Cat. #2134.15 ® (3-Channel, 1000A Includes three attached 24" AmpFlex sensors, USB cable, DataView CD-ROM, 4x1.5V...
  • Page 8: Accessories And Replacement Parts

    Sentinel AC Logger Model SDL-A304 ......Cat. #2134.18 ® (3-Channel, 3000A Includes three attached 24" AmpFlex sensors, USB cable, (120V US) wall plug adapter with ® output, DataView CD-ROM, 4x1.5V AA rechargeable NiMH batteries installed, user ® manual and warranty card. Sentinel DC Logger Model SDL-A401 ......
  • Page 9: Sensors Compatible With Model Sdl-A401

    1.5.1 Sensors Compatible with Model SDL-A401 AmpFlex SDL-1000A - 24" with BNC output ...... Cat. #2129.00 ® AmpFlex SDL-1000A - 36" with BNC output ...... Cat. #2129.01 ® AmpFlex SDL-3000A - 24" with BNC output ...... Cat. #2129.02 ® AmpFlex SDL-3000A - 36"...
  • Page 10 (BNC - 10mV/mA - 150A peak & 1mV/A - 1500A peak) NOTE: The current probe measurement ranges are limited to 1Vrms. Above 1.1Vrms, the meter will show overload. Order Accessories and Replacement Parts Directly Online Check our Storefront at www.aemc.com/store for availability Sentinel Current Data Loggers ®...
  • Page 11: Product Features

    CHAPTER 2 PRODUCT FEATURES Description The Sentinel Current Data Loggers are three- and four-channel current ® recording devices with alkaline or rechargeable battery packs (model dependent). Line tracking is performed such that 64 samples over one line cycle are taken. Frequency tracking is performed over the range of ±3Hz around the nominal line frequency (50 or 60Hz).
  • Page 12: Control Features

    Control Features 600V CAT III 1000A SENTINEL DATA LOGGER ® TRMS CURRENT LOGGER MODEL SDL - A301 Figure 2-2. Key Components and Features 1. Hard-wired current inputs or BNC inputs for iron core current probes (3- or 4-channel and model dependent) 2.
  • Page 13 4. USB Communication Port 5. Power Input (Model dependent) 6. Reset Button (not shown) This button resets the CPU. The RESET Button is located inside the instrument under the shield. Remove the rear cover and insert a small tool, such as a pen, through the hole in the shield to activate it.
  • Page 14: Specifications

    50°C to all accuracy specifications. Conductor must be centered in the sensor. Continuous magnetic field <40 A/m (Earth Magnetic Field). No external electrical or alternating magnetic field is present. Sinusoidal current with frequency 50/60Hz ± 3Hz for >60A and 50/60Hz for <60A. Calibration cycle is 1 year. MODEL SDL-A301 SDL-A302 Channels Three...
  • Page 15: Mechanical

    MODEL SDL-A401 SDL-A402 Channels Four Four Input Sensor/Probe 24" or 36” AmpFlex 0-1V output probes w/BNC ® Type (use only specified current probes) Flexible Current Sensors Current Range 5 to 1000A 15 to 3000A Probe dependent Resolution 0.1A 0.25A Probe dependent Accuracy 5 to 100A 15 to 100A...
  • Page 16: Operation

    CHAPTER 4 OPERATION Operating Modes The Sentinel Data Logger has three modes of operation: RECORD, ® STANDBY and OFF. After the instrument has been turned on, the operating mode of the logger can be determined by pressing the PRESS button for less than 1.5 seconds. The GREEN LED indicates the mode of operation: LED OFF: Logger is turned off LED Single Blink: Logger is in Standby Mode (and not recording)
  • Page 17 When in the RECORD mode, the instrument will enter the low power state provided the storage period is one second or greater and the button has not been pressed for five minutes. If the recording storage rate is faster than once per second the unit will not power down between sample sets. Operations are determined by the length of time the control button is pressed.
  • Page 18: Connecting The Sentinel ® To A Computer

    Connecting the Sentinel to a Computer ® INSTALL THE DATAVIEW SOFTWARE BEFORE INSTALLING THE USB DRIV- ® ERS AND BEFORE CONNECTING THE SENTINEL TO THE COMPUTER. ® Figure 4-1 shows a typical hook-up. The Sentinel Data Logger utilizes an ® optically isolated USB communication port.
  • Page 19: Recording Data

    The instrument contains protection circuitry to prevent it from being turned on when the battery voltage is below 3.8V. There are two thresholds for the battery voltage depending on how the instrument is turned ON (either button press or DataView ) and the record- ®...
  • Page 20: Stopping A Recording Session

    4.4.2 Stopping a Recording Session 1. Push the PRESS button for >3s and <5s. The RED and GREEN LED will turn on simultaneously. 2. The GREEN LED will change from a double-blink to a single-blink, indicating STANDBY mode. The data will be retained, even if the instrument is turned OFF. The recorded data may be downloaded to a hard-disk.
  • Page 21: Data Storage

    Erasing the Memory using DataView ® 1. Connect the Sentinel to the computer and open the Control Panel for the Sentinel. 2. Select Erase Memory from the Instrument Menu. Data Storage The logger captures Trend measurements. Input Channel: Source for the measurement channel of the instrument. Measurement Channel: Measurement of input.
  • Page 22 • The PRESS button is used to Start and Stop a Recording Session. • If the PRESS button is not pressed for a period of five minutes the instrument will enter a low power STANDBY mode and wait for either another button press or the recording start time to arrive (if a recording is scheduled).
  • Page 23 At this time: • The memory can be downloaded and cleared. • A new recording can be started or scheduled once the memory is cleared. Event: Battery Power is Insufficient for a Full Recording Duration If the battery voltage drops below the threshold, the following will occur: • The Recording Session will terminate.
  • Page 24: Reset Button Operation

    Reset Button Operation There is a recessed RESET button located inside the unit and indicated by a label on the shield. NOTE: It is recommended to only press the RESET button when the logger stops responding to a normal press button control when not connected to DataView .
  • Page 25: 4.10 Synopsis Of Operation

    4.10 Synopsis of Operation Indicators Saved Data or Battery Recording ON, OFF Comments Session(s) in Voltage Session 1 - Single-Blink Note: P/B = Press Button Memory 2 - Double-Blink P/B Stops Recording. Pushing >10s does not erase the memory >3.8V Active during Recording.
  • Page 26 Turning the Unit On Unit off Press and Hold the PB 5 Seconds All LEDs on Bat low < 4.3V Red LED blinks twice PB released Cannot start a new All LEDs off recording under this condition Yellow LED blinks MEM full twice every 6 seconds STANDBY Mode...
  • Page 27 Normal Operation Unit off STANDBY Mode No PC and PB In Recording The yellow LED for 5 min will be on if the memory is full and will not start a recording PB > 10 Sec 3 < PB < 10 Sec 1 <...
  • Page 28: Maintenance

    CHAPTER 5 MAINTENANCE Use only factory specified replacement parts. AEMC will not be held ® responsible for any accident, incident, or malfunction following a repair done other than by its service center or by an approved repair center. Changing the Alkaline Batteries WARNING: Turn the unit off before changing the batteries or loss of recorded data may occur.
  • Page 29: Replacing The Rechargeable Batteries

    Replacing the Rechargeable Batteries WARNING: Disconnect all inputs and AC wall adapter before proceeding 1. Remove the four screws holding the back cover on. 2. Locate/remove the screw holding the cover on the battery holder. 3. Slide cover off to remove. 4.
  • Page 30: Troubleshooting

    APPENDIX A TROUBLESHOOTING Symptom: After being in a damp, cold environment, the logger does not function. Cause, Correction: Condensation may have formed inside the logger, shorting out the circuitry and discharging the battery. Allow the circuit board to dry thoroughly in a warm location. Symptom: Sentinel Data Logger does not start recording when the ®...
  • Page 31: Glossary

    APPENDIX B GLOSSARY Some general terminology associated with the data collection process is listed here for convenience. Bps: Bits Per Second, a unit of signal transfer speed equal to the number of elements per second. The Sentinel Data Logger transfers ® data at the rate of 115200 bps.
  • Page 32 Resolution: The number of bits in which digitized values will be stored. The Sentinel Data Logger has 12-bit resolution. ® Ride-through: Time during which the AC line voltage has dropped sufficiently low to not be able to power the instrument. Zoom: The ability to select a section of the graph and magnify it for better readability.
  • Page 33: Repair And Calibration

    If the instrument is returned for calibration, we need to know if you want a standard calibration, or a calibration traceable to N.I.S.T. (Includes calibration certificate plus recorded calibration data). Ship To: Chauvin Arnoux , Inc. d.b.a. AEMC Instruments ® ®...
  • Page 34: Limited Warranty

    ® For full and detailed warranty coverage, please read the Warranty Coverage Information, which is attached to the Warranty Registration Card (if enclosed) or is available at www.aemc.com. Please keep the Warranty Coverage Information with your records. What AEMC Instruments will do: ®...
  • Page 36 09/18 99-MAN 100290 v11 Chauvin Arnoux , Inc. d.b.a. AEMC Instruments ® ® 15 Faraday Drive • Dover, NH 03820 USA • Phone: (603) 749-6434 • Fax: (603) 742-2346 www.aemc.com...

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Sdl-a302

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