Dickson Industrial THDx Manuel - Page 8

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Dip Switch Setup

To set-up the THDx for your specific application, you

might need to change some of the Dip Switches.

Every time you change a dip switch setting, you must

push the up arrow key on the keypad to activate the

new dip switch settings.

Off

Figure 5

Recording Time

The THDx has four different recording time options:

1 day, 7 day, 14 day and 31 day. Dip Switch #1 and

#2 control the recording time.

7 day

1 day

14 day

31 day

NOTE: Remember to install correct chart to match

corresponding switch setting.

°F/C

You can record in °F or °C with the THDx by using

dip switch #3.

°F

°C

Temperature Range

The THDx will record in two temperature ranges.

Dip switch #4 allows you to select the temperature

range.

Wide Range

-20 to +120°F (-20 to +50°C) #4 off

Narrow Range

+40 to +110°F (+5 to +40°C) #4 on

Warranty

Dickson warrants that the products it sells will be free from defects in material and workmanship under

normal use and service for a period of twelve months after delivery. In the event of a claim under this

warranty, the product or part must be returned to the factory for repair or replacement (shipping pre-paid)

with a Return Authorization Number (see Return Information above). It will be repaired at Dickson's option

without charge. This warranty DOES NOT cover routine calibration, pen, chart and battery replacement. The

foregoing warranty and remedy are exclusive and in lieu of all other warranties either expressed or implied.

Dickson shall not be liable for consequential or incidental damages resulting from failure or malfunction of

its products. Dickson makes no warranty for products not manufactured by it or for any products modified by

buyer, or subject to misuse or neglect.

Rev. 06/03

#1 off

#2 off

#1 off

#2 on

#1 on

#2 off

#1 on

#2 on

#3 off

#3 on

RH/Dew Point

Dip switch #5 allows you to select whether RH or

dew point is recorded by the blue pen. (The red pen

always records temperature.)

Dew Point

NOTE: When the blue pen is recording dew point,

the reading indicates the temperature at which dew

will form, so you should use the temperature scale

on the chart to read dew point.

Display

The THDx has a dual display that shows both

temperature and humidity (or temperature and dew

point if dip switch #5 is on). With dip switch #6 you

can control the position of the variables displayed.

Temperature on top

Temperature on bottom

Display On/Off

Dip switch #7 will allow you to turn the display on

and off.

Display On

Display Off

Keypad Lock

For security purposes it is possible to lock the key

pad with the use of dip switch #8. You may want

to lock the keypad to prevent unauthorized persons

from using the keypad to set alarms or change the

calibration. (For more information on use of the

keypad see "Keypad Operations" on pg. 5.)

Keypad Unlocked

Keypad Locked

#5 off

#5 on

#6 off

#6 on

#7 off

#7 on

#8 off

#8 on