Page 1
Quick Start
Your recorder has been preset to operate using the most popular settings:
• Recording Time: 7-day
• Range: TH6P1, TH6P2: 32°F - 100°F
TH623: 0°F - 100°F
To change the range and recording time, please reference Dip Switch Setup in this manual.
1. Remove the protective pen caps. The blue pen has a longer pen arm and records humidity or dew point (depending on
your dip switch selection). The red pen has a shorter arm and records temperature. The pens are offset to allow the red
pen to glide under the blue pen. The blue pen indicates the correct time and the red pen precedes it by 3/16 of an inch.
2. Insert four (4) AA Batteries and plug in AC adapter. The unit will power on. The instrument will move pens to the
appropriate readings.
3. Install the chart that matches the “Dip Switch settings” you have selected.
4. Press the Pen Home key to move the pens to the outside of the chart. The pens are automatically raised off the chart.
5. Remove the old chart. Place the new chart on the “Chart Hub” making certain that the edge of the chart slides under the
“chart guide clips” located at the outside of the chart.
6. Set the appropriate time. There are two ways to adjust the chart and set the appropriate time:
a. Set the chart time manually by inserting a coin into the groove in the chart hub and turning clockwise until the correct
hour (and day if applicable) on the chart is referenced to the timing arrow (just to the right of the pen tip on the dial).
This feature should be used for fine adjustments only.
b. To adjust the chart time, press and hold Adjust-Up and Adjust-Down buttons located on the back of the unit next to
the dip switch. The green LED will blink rapidly for about 5 s, then the LED will remain solid green. While in this state
the Adjust-Up button will move the chart backward (counter clockwise) and the Adjust-Down button will move the
chart forward (clockwise). Rotate the chart until the correct hour (and day if applicable) on the chart is referenced to the
timing arrow. Once you have set your chart, press the Pen Home button to exit “Chart Adjust Mode”. The unit will take
one minute to exit the “Chart Adjust Mode” once Pen Home is pressed. Press Pen Home to move the pens back onto
the chart.
7. Place the TH6 recorder on a flat vibration-free surface. Be sure it is in a vertical position and level. For best performance
and longevity, the location should be a clean environment, free from dust and corrosive fumes. Do not exceed
temperature specifications.
Wall Mount Keyhole slots are provided on the TH6 recorder for wall mounting.
Phone: 1-800-757-3747 or 1-630-543-3747 | Fax: 1-630-543-0498 | Email: support@dicksondata.com | Website:DicksonDate.com
TH6P1, TH6P2, TH6P3
6” (152mm) Temperature & Humidity Chart
Recorder
Page 2
Display Symbols TH6P2, TH6P3
On/Off
The On/Off key turns the unit on and off.
Pen Home
If the pens are located on the outside edge of the chart, press the Pen Home to move pen(s) to recording position. If the pens
are located on the chart, press the Pen Home key to move the pen(s) to the outside edge of the chart.
Alarm TH6P3
Pen 1: = Red Pen
Pen 2: = Blue Pen
1. To set the alarm, make sure unit is on and press and hold the Alarm button. The LED will blink red rapidly for about five
seconds, then the LED will turn solid green. Release the Alarm button and the LED will turn solid red. At this point the
display will show “On” or “Off”.
TH6P3
TH6P1, TH6P2
Power
LED
Power
LED
Pen
Home
Pen
Home
On/
Off
On/
Off
Alarm
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2. Pressing either the Adjust-Up or Adjust-Down buttons, located on the back of the unit next to the dip switch, will toggle the
alarm on or off.
3. Pressing pen home will scroll to the next alarm options:
a. Alarm “on” or “off”
b. Pen 1 alarm minimum
c. Pen 1 alarm maximum
d. Pen 2 alarm minimum
e. Pen 2 alarm maximum
4. In order to set pen alarm minimums and maximums, pressing Adjust-Up will increase the alarm value, and pressing Adjust-
Down will decrease the alarm value. There is acceleration if the Adjust-Up button is held down.
Repetitively pressing the Pen Home button will scroll through the five options until the alarm button is pressed to exit from
alarm adjust. Each press of the Pen Home or Alarm button will store the new settings. The unit will take one minute to exit
“Alarm Set Mode” once the Alarm button is pressed.
5. If the alarm is triggered, the LED will show as solid red and the alarm will sound. Press the Alarm button to silence the
audible alarm.
Dip Switch Settings
To set-up the TH6 recorder for your specific application, you might need to change some of the “Dip Switches”. The Dip
Switches are located on the back of the unit. Use a pen or small screw driver to flip the switches.
Remember to install the correct chart to match the corresponding Dip Switch setting.
Adjust Buttons
Dip Switches
Relay Contacts
Remote Probe
(TH6P3)
Battery
Compartment
AC Adapter Jack
Up
Down
Rly 1 Rly 2
Pwr CH1
Slide toggle up for “on” position
Slide toggle down for “off” position
Dip Switch 1
5-8 are
not active on
this recorder
1 2 3 4 5 6 7 8
Page 4
Up = On Down = Off
Switches 2-4F
Model
Chart
2 3 4
7 day
All D
24 hr
All U
0°F - 100°F
TH6P3
D D 32°F - 100°F
TH6P1, TH6P2
0 - 100
D D
0°F - 185°F
TH6P3
0 - 200
D U
0°C - 50°C
All U D
0°C - 85°C
TH6P3
0 - 100
U U
Remember to install the correct chart for your range
Recording Time
The TH6 recorder has two different recording time options
24-hour 2 up
7-day 2 down
Note: Remember to install the correct chart to match corresponding switch setting.
Temperature Range
The TH6 will record up to four (4) temperature ranges (depended on model). Dip switches 3 & 4 allow you to select the
temperature range.
0°F - 100°F
TH6P3
3 down
4 down
32°F - 100°F
TH6P1, TH6P2
3 down
4 down
0°F - 185°F
TH6P3
3 down
4 up
0°C - 50°C
TH6P1, TH6P2, TH6P3
3 up
4 down
0°C - 85°C
TH6P3
3 up
4 up
Power
The TH6 operates on AC power with an optional four (4) AA battery backup. Battery backup will last approximately three (3)
days. Alarm and relays will not operate under battery only power.
LED Indicators
Green LED =”Power on”
Blinking Green =”Battery power”
Red =”Alarm” or “Low battery”
Blinking Red =”Alarm” or “Low battery while under battery power
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Calibration
Your instrument was carefully tested and calibrated before being shipped from the factory. For greatest accuracy, we
recommend replacing the sensor every 6-12 months (does not include N400 and N450). For re-calibration, call customer service
at (630) 543-3747. If you wish to do the calibration yourself, follow these procedures:
1. To activate calibration mode, turn the unit on and press and hold both the On/Off button and the Adjust-Down button
(making sure to press the Adjust-Down button first so the unit will not turn off).
2. The led will blink in amber rapidly for about five seconds, and turn solid green. Release the On/Off button and the Adjust-
Down button, the led will then blink amber at which point only the pen being adjusted will show on the display.
3. To raise the unit of measurement, press the Adjust-Up button. To lower the unit of measurement, press the Adjust-Down
button. Pen Home switches between the red and blue pens on a two-pen unit and stores the current adjustment value.
When calibration is complete, press the On/Off button. Calibration is stored in memory even after you turn the unit off. User
calibration information will not be lost if AC power fails
Note: After two hours, if no buttons are pressed, the unit will “time out” of user calibration and resume normal operation.
The user calibration is stored separately from the factory calibration. If you wish to cancel out your user calibration, simply
enter “calibration mode” and toggle through the steps without adjusting displayed readings. Exit by pressing the On/Off
button. You have now restored factory calibration.
It is recommended that you use a controlled chamber when calibrating temperature and humidity. Calibrating in an open
room is not recommended as humidity can vary greatly within a very small area.
Need to Know
Pen Adjust
Pen adjust may be needed if the pen(s) and display do not match.
1. While the unit is on, press and hold both the Pen Home button and the On/Off button (making sure to press the Pen
Home button first so the unit will not turn off). The led will blink rapidly between amber and green for about five seconds,
the LED will then turn green, release the Pen Home and On/Off buttons. The led will flash amber and green for one
second and the led will turn off.
2. Both pens will move to the outer edge of the chart, and then the shorter red pen will move to the current position.
Use the Adjust-Up and Adjust-Down buttons to move the pen to the maximum temperature line on the chart. Once the
shorter red pen is set, the Pen Home button will move the shorter red pen to the outer edge of the chart and the longer
blue pen will move to its current position.
The Adjust-Up and Adjust-Down buttons will adjust the longer blue pen position. Once the pen is set, the Pen
Home button will move the longer blue pen to the outer edge of the chart and the shorter red pen will move to its new
position.
Each time Pen Home is pressed, the two pens will switch positions (moving the most recently adjusted position) until
the On/Off button is pressed to exit pen adjust mode.
Note: Pressing the On/Off button will exit the adjustment and return the unit to normal operation. Each time the Pen
Home or On/Off button is pressed, the adjustment currently in progress will be stored. The unit will take one minute to exit
“Pen Adjust Mode” once the On/Off button is pressed.
Page 6
Troubleshooting
Why isn’t the chart keeping time or running slow?
The chart may be hung up or restricted, possibly caused by a rip on the outer edge of the chart or the chart may be caught
between the arm and pen arm platform.
The incorrect chart is installed for the selected chart speed.
Why did the chart stop turning?
Chart hung up or restricted, (ripped chart)
The unit may be “locked up”.
This can be confirmed by pressing any of the buttons on the keypad. If the unit is “locked up”, there will be no response to
button presses and the chart recorder may appear to be working, but the readings won’t change. Also, the chart will not
rotate. Remove the power and battery, and then re-power
Why don’t the display and chart match?
Dip switches are set for a specific range, but using chart for another range, or vice versa.
Pen(s) not inserted on pen arm(s), all the way. To adjust the pen to match chart, see “Pen Adjust” in the Need to Know
section of this manual.
Why does the display read PROB?
Is the unit “locked up”? This can be confirmed by pressing any of the buttons on the keypad. If the unit is ‘locked up’, there will
be no response to button presses and the unit may appear to be working. The readings won’t change, and the chart will not
rotate. Remove power and battery, and then re-power.
Why does calibration seem to be off?
What is the tolerance of the unit it’s being compared to?
It’s ok if the unit is within the sum of the two tolerances.
Has an outside calibration house attempted calibration? It may not have been adjusted properly.
Walk through calibration adjustment, found in the manual.
Why won’t the battery back-up work?
Is there a good battery in the chart recorder?
Keep in mind that battery backup lasts approximately three (3) days. Temperature, pen movement and chart rotation
speed will significantly affect battery life.
If there was a momentary power outage “brown out”, the unit may not have had enough time to recognize this and switch
to battery mode. (The chart recorder may lock up or shut off in this situation) This situation may also occur if the unit is
plugged into an outlet that shares the circuit with other machinery that has phase motors or compressors that cycle
periodically. As these other machines cycle, they momentarily have a high current draw, therefore drawing from the unit.
Why won’t the chart recorder respond to changes?
Is the unit ‘locked up’? this can be confirmed by pressing any of the buttons on the keypad, if the unit is ‘locked up’ there
will be no response to button presses and the unit may appear to be working, but the readings won’t change, also the
chart will not rotate. Remove power and battery, and then re-power.
Dip Switch 1 should be in the down position. If it is in the up position the pens will not move.
Why won’t the unit power up?
Remove the battery and power adapter for a minute or two. This will reset the unit. The unit should respond when the adapter is
plugged in.
Page 7
Warranty
Dickson warrants that this line of instruments will be free from defects in material and workmanship under normal use and
service for a period of twelve months after delivery.
This warranty does not cover routine calibration and battery replacement. For Specifications and Technical Support go
to www.DicksonData.com
Factory Service & Returns
Contact Customer Service (630).543.3747 for a Return Authorization (RA) Number before returning any instrument. Please
have the model and serial numbers, and a PO ready before calling.
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