Extech Instruments SDL470-NISTL User Manual
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Extech Instruments SDL470-NISTL User Manual

Uva, uvc light meter with temperature
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USER MANUAL
UVA, UVC Light Meter with Temperature
Model SDL470

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Summary of Contents for Extech Instruments SDL470-NISTL

  • Page 1 USER MANUAL UVA, UVC Light Meter with Temperature Model SDL470...
  • Page 2 Introduction Thank you for selecting the Extech Instruments Model SDL470 Ultraviolet Light Meter. The SDL470 measures UVA and UVC light plus temperature. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, and...

  • Page 3: Meter Description

    Meter Description LCD display HOLD and LCD Backlight button Power button Up arrow ▲ and UNITS button Down arrow ▼ and FUNCTION button MAX-MIN button Time/Date Check and SET button ENTER and LOG button Side compartment (detailed below) 10. UVA Probe and UVC Probe input plug 11.

  • Page 4: Operation

    Operation Function/Measurement Selection • Power the meter ON or OFF by pressing and holding the Power button for at least 2 seconds. • If this is the first time the meter is powered ON or if the batteries have been replaced, the meter may display the SET DATE message to remind user to set the date and time (see the SETUP MODE section for setting the time and date).

  • Page 5: Type K/J Thermometer Measurements (Probe Is Optional)

    Type K/J Thermometer Measurements (Probe is optional) • Plug a thermocouple (not supplied) into the temperature probe jack at the top of the meter. • Switch the meter ON by pressing and holding the Power button for at least 2 seconds. •...

  • Page 6: Accessing The Setup Mode

    Setup Mode Time/Date and Datalogger Sample Rate settings at a glance To view the current configuration of the meter with regard to time/date and sample rate short press the SET button. The meter will now display the configuration in quick succession. If the information is missed on the first try, simply press the SET button again until all of the information is noted.
  • Page 7 Setting the Datalogger Sampling Time (Rate) ‘SP-t’ From the SP-t parameter the sampling rate can be set to ‘0’ seconds (for manual logging) or 1, 2, 5, 10, 30, 60, 120, 300, 600, 1800, 3600 seconds for auto logging. Use the up/down arrow buttons to select the sampling rate (press and hold for quick scroll). Press the ENTER button to confirm the entry and automatically step to the next parameter.

  • Page 8: System Reset

    SD Card FORMATTING (Sd-F) From the Sd-F parameter screen use the arrow buttons to select YES to format the card (select NO to abort). Note that all data on the card will be lost if formatting is attempted. If NO was selected, press ENTER to confirm and to move to the next parameter. If YES was selected, press ENTER and then press ENTER again when ‘ent’...

  • Page 9: Sd Card Information

    Datalogging and PC Interface Types of Data Recording • Manual Datalogging: Manually log up to 99 readings onto an SD card via push-button press. • Automatic Datalogging: Automatically log data onto an SD memory card where the number of data points is virtually limited only by the card size. Readings are logged at a rate specified by the user.

  • Page 10: Automatic Datalogging

    Automatic Datalogging In automatic Datalogging mode the meter stores a reading at a user-specified sampling rate onto an SD memory card. The meter defaults to a sampling rate of one second. To change the sampling rate, refer to the Setup Mode section (the sampling rate cannot be ‘0’ for automatic Datalogging): Select the sampling rate in the Setup Mode (refer to Setup Mode section) to a value other than zero.

  • Page 11: Ac Power Adaptor

    SD Data Card to PC Data Transfer Complete a Datalogging session as detailed above in the previous sections. Hint: For the first few tests, simply record a small amount of test data. This is to ensure that the Datalogging process is well understood before committing to critical, large scale Datalogging.

  • Page 12: Battery Replacement

    Battery Replacement When the battery icon appears on the LCD, the batteries must be replaced. Several hours of test time are possible from when the battery symbol first appears but when critical data is at stake it’s always best to start with a fresh set of batteries. 1.

  • Page 13: General Specifications

    Specifications General Specifications Display Backlit LCD size: 52 mm x 38 mm (2.0 x 1.5”) Measurements UV light, UVA and UVC Type K or J thermocouple temperature UVA, UVC selection Front push-button UV Sensor spectrum UVA (390 – 280nm), UVC (280 – 240nm) UV sensor Exclusive photo sensor with cosine correction filter UV light zero adjust...

  • Page 14: Electrical Specifications

    Electrical Specifications UV Light (UVA, UVC) Ranges and Resolution Range 1: 2000 µW/cm² max Range 2: 20.00mW/cm² max Accuracy ± (4% FS + 2 digits); FS= Full Scale UVA Calibration executed under UVA light and compared with UVA light meter standard UVA (390 – 280nm) UVC Calibration executed under UVC light and compared with standard UVC light meter standard UVC (280 –...

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