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Dickson THDx Manual

Temperature, humidity & dew point recorder
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DICKSON
THDx
Temperature, Humidity & Dew Point Recorder
DICKSON
www.dicksonweb.com
930 South Westwood Avenue • Addison, IL 60101-4917
Telephone: (630) 543-3747 • Fax: (630) 543-0498
E-mail: DicksonCSR@Dicksonweb.com
rev. 12/03

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Summary of Contents for Dickson THDx

  • Page 1 DICKSON THDx Temperature, Humidity & Dew Point Recorder DICKSON www.dicksonweb.com 930 South Westwood Avenue • Addison, IL 60101-4917 Telephone: (630) 543-3747 • Fax: (630) 543-0498 E-mail: DicksonCSR@Dicksonweb.com rev. 12/03...

  • Page 2: Quick Start

    Pens and a chart have already been installed for your convenience. All you need to do to start using your THDx After you get started using the “Quick Start Instructions,” recorder with the settings listed above is follow these...
  • Page 3 Instrument Anatomy Figure 1 Probe Strain Relief Alarm Sound Source AC Adapter Jack Figure 2 Pen Cap Chart Holders Guide Clip Pen Lifting Bar Chart Hub Humidity/ Temperature Timing Clip Dew Point Pen...

  • Page 4: Operating Information

    Probe power, the unit will update very slowly to extend battery The THDx probe sits in the cradle in the back of the unit. life. The 120V AC adapter plugs into the back of the The THDx probe comes with the standard 8” cord. An recorder beneath the probe cradle.

  • Page 5: Keypad Operations

    Keypad Operations Alarm ON/OFF ON/OFF This button turns the alarms on and off. When alarms are “ON” the alarm symbol appears on the display. When alarm sounds it will sound audibly for approximately 1 minute and then it will stop. For a visual, the variable MIN/MAX that has moved outside of the minimum or maximum points that you set will flash (i.e.

  • Page 6: Dip Switch Setup

    (For more °F/C information on use of the keypad see “Keypad Opera- You can record in °F or °C with the THDx by using dip tions” on pg. 5.) switch #3. Keypad Unlocked #8 off °F...

  • Page 7: Calibrate Temperature

    1. Turn the unit on and use dip switch #5 to select 2. Place the THDx probe, along with your precision humidity or dew point (RH=#5 off, Dew Point=#5 temperature instrument (your temperature standard) on).

  • Page 8: Troubleshooting

    (depress MIN/MAX keys for information) Display shows dc and indicator on the left • Factory repair is necessary, send to Dickson for repair part of the digital display Display shows E (lower left of digital display) •...

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