Dickson TH605 Instruction Manual

Replacement Parts

Charts (60/pk)
TH6 Ranges 24 hour Chart 7 day Chart

0 to +85˚C C658 C657
0 to +100˚F C658 C657
+32 to +100˚F C658 C657
0 to +50˚C C664 C663
0 to +185˚F C667 C665

Accessories/Probes

Software, cable & manual A015
Pens (3 red/blue) P246
Calibration Kit (12% & 75%) A834
NIST Traceable Calibration, 3-pt* N3TH

*Must be requested when ordering, add one week to delivery time.

Troubleshooting

Symptom Cause Check/Remedy

Pen trace too Tip too sharp, cartridge Sand tip, moisten or replace pen
ne or absent dried out.
Readings of pen and Wrong chart Check dip Switch #4, #5
display do not Pen not on properly Push pen completely onto pen arm.
match exactly. Line thickness Check to see that proper chart is installed.
UND Far below range of recorder. Check temperature range
Out of Calibration Harsh environments, See “CALIBRATION PROCEDURE”, p. 6
or stressful conditions, or
Questionable accuracy or time. Return to factory for re calibration

OVR Far above range of recorder Check temperature range
PRB Probe missing Plug remote probe into back of the

recorder (see diagram, p. 3)

Temperature & Humidity Recorder

Factory Service and Returns

We recommend that damaged instruments
be returned to our factory for complete repair.
Before returning any instrument or package,
please call for a Return Authorization (RA)
Number. When calling, please have the following
information available:

1. P.O. number for out-of-warranty units.

The DIckson Warranty

Dickson warrants the TH6 line of instruments
will be free from defects in material and
workmanship or accidental damage 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 prepaid) with a Return
Authorization (RA) Number. It will be repaired or
replaced at Dickson’s option without charge. This
warranty does not cover routine calibration, pen,
chart and battery replacement.

2. Serial number of unit.

3. Model number of unit.

4. The problem you are experiencing with unit.

Clearly mark the RA number on the outside
of the package and return the instrument,
shipping prepaid. Delivery will be refused for
packages sent without RA numbers.

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 modied
by buyer, or subject to misuse or neglect.

Dickson manufactures a complete line of
temperature, humidity, air quality, pressure &
electrical instruments. Send or call for a free
catalog of Dickson products.

TH6

DICKSON

www.dicksonweb.com

930 South Westwood Avenue • Addison, IL 60101-4917

Telephone: [phone] • Fax: [phone]

E-mail: [e-mail]

Quick Start

Instrument Anatomy

Your TH6 recorder has been preset to operate
using the most popular settings.

TH6

Recording Time: 7 day
Temperature Range: 0 to 100˚F (Remote
Probe unit)

The pens and a chart have already been
installed for your convenience. All you need to do
to start using your TH6 recorder with the settings
listed is follow these quick start instructions:

1. Insert 9V battery and plug in AC adapter

2. Remove the protective pen caps, and place
on “PEN CAP” holders

3. Press the “ON/OFF” key to turn instrument
on (diagram identies keys, p. 4)

Specications

TH6 Temperature Ranges
(self contained):

+32 to +100˚F, 0 to +50˚C

Remote Probe Unit:

0 to +100˚F, 0 to +50˚C, 0 to +185˚F, 0 to
+85˚C

Humidity Range: 0 to 95% (non-condensing)
Temperature Accuracy:

±0.5% of chart range
±1.8˚F (±1˚C)

Humidity Accuracy: ±2% from 0 to 60%,
±3% from 60 to 95%

TH6 Sensors:

Temperature: High Precision Thermistor
Humdity: High Precision Capacitance Type

Recording Times: 24 hour, 7 day
Display Resolution (optional):

0.1˚F/C or 0.1%RH

Installation

Before you install your TH6 recorder, read
through this entire manual to nd out about all
the options that are available to you.
Place the TH6 on a at 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 form dust
and corrosive fumes. Do not exceed temperature
specication.

Wall Mount:

Keyhole slots are provided on the TH6 for wall
mounting

Panel Mount:

See the dimensional drawing for exact panel
mount cut out dimensions.

4. The instrument will enter a 5 second
warm-up phase, ending with the pens
moving to the appropriate readings. Under
warm-up mode the green LED ashes until
ready. When ready, LED will stay a solid
green and the display will alternately display
the temperature and humidity readings.

5. Set the appropriate time by pressing the
“CHART ROTATION” key on the lower right
of the dial plate. The chart will turn clock
wise while the button is depressed. (CAU
TION: Do not manually try to turn chart hub.
Doing so will damage the instrument.) Con
tinue the rotation until the correct hour and
day on the chart is referenced to the time
arrow. (see “INSTRUMENT ANATOMY”, p.

3).

Chart: 6” diameter (15.2 cm)
Power Supply: 120V AC adapter with 9V

battery for back-up power (240V AC also
available)

Alarm (optional): Maximum and minimum
settings with alarm contacts, audio and visual
alarms

TH6 Default Alarms:

0˚ MIN & 100˚ MAX
0% RH MIN & 100% RH MAX

Dimensions: 7 9/16” x 7 9/16” x 3 1/4”
(192mm x 192mm x 83mm)

Weight: Approximately 3 lbs (1250g)

Ambient Operating Conditions:

+32 to +122˚F (0 to +50˚C) 0 to 95%RH (non­ condensing)
NOTE: Response time is slower when using
battery power source.

Case is designed to be mounted with #8, type
B screws.

7.500 (190.5 mm)

Figure 2.5

7.500 (190.5 mm)

Rear Mount
Opening
(Used for DIN sizes)

6.875 (174.6 mm)

7.175 (182.2 mm)

6.875 (174.6 mm)

6.875 (174.6

6.875 (174.6

Recorder overall size

6.875 (174.6

7.175 (182.2 mm)

Front Mount

Opening

Figure 1

Door Latch

Figure 2

Remote Probe
Connector
(TH603 only)

Sensors
Location
(TH601/602)

Relay
Contact
(optional)

Digital Display Dip Switches Dip Switch

Setting Chart

Pen Cap
Holders

Compartment

Panel Mount
Holders

Chart
Guide
Clips

Pen
Assembly

Chart Hub

Time Arrow

LEDKeypad9V Battery

Key Hole/
Wall Mount
Holes

AC/DC
Adapter

Operating Information

Keypad Operations

Pens:

The blue pen has a longer pen arm and records
humidity. 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. (Display Models:
Hysteresis (a property that occurs when tension is
applied to an object) causes the pens to move in
increments across the chart as the sensor readings
change. However, the display readings are not
affected by the property of hysteresis. For this
reason the display provides smoother and faster
readings than the pens. At any given time there
may be a slight discrepancy in the position of the
pen and the reading on the display.
For visual spot checks the display is the most
accurate but ore both are within the stated
specications of the unit. (see “SPECIFICATIONS”,
p. 2)

Probe:

The TH603 probe comes with a standard 6’
cable. An extension cable can be ordered to

Alarm Relays (optional)

The SPST 24V 500mA relay contacts are
normally open and will close on alarm conditions
when the alarms are enabled. Relay contacts are
always functional when the alarm is enabled. Dip
Switch #8 has no affect on the relay. The relay

Display Symbols (optional)

Figure 4

allow for remote sensing capabilities. NOTE: The
TH601 & TH602 models are self-contained.
Power Supply:
We recommend using AC power with one
9V battery installed as a back-up power source.
This ensures that your recording will not be
interrupted when there is a power failure. NOTE:
When the unit is in battery back-up mode,
the recorder will update temperature/humidity
readings at a much slower rate. The battery
should be replaced once a year and after power
failures of more than a few hours.

To replace the battery:

1. Open the door of the recorder by depressing
the door latch

2. Press the “PEN HOME” key

3. Lift the chart, if there is one present,
to fully expose the battery compartment
and press down on the tab to release
battery compartment door

4. replace 9V battery

will close only during minimum and maximum
alarm conditions.
For compliance to CE directives do not remove
the rubber cover from the alarm relay terminals
when the terminals are not used.

C

Indicates ˚C

F

Indicates ˚F

H

Indicates % RH

O

Zero Calibration Mode

A

Alarm set mode

MIN

This symbol is displayed when you are setting
a minimum alarm or during a minimum alarm
condition when alarms are enabled.

MAX

This symbol is displayed when you are setting
a maximum alarm or a maximum alarm condition
when alarms are enabled.

Alarm

Pen Home

LED

Up Arrow

Figure 3

ON/OFF:

The “ON/OFF” key turn the unit on and off.
Alarm and calibration settings are restored to the
most recent values when the unit is turned on.
If the unit is using AC power and power fails,
the unit will switch to battery power without
interrupting the recording capabilities. Alarms, if
present are off if power fails when the battery is
not present, the pen will remain on the chart in
recording position.

PEN HOME (also DOWN ARROW)

If the pens are located outside the chart,
press the “HOME” key with the pen in recording
position, and the pen will move to the outside
of the chart and up the pen lift ramp (home).
The “PEN HOME” key is also used as a “DOWN
ARROW” key to decrease values when setting the
optional alarms or calibration values.

CHART ROTATION (also UP ARROW)

The “CHART ROTATION” key sets the chart
to the desired time setting. Press the “CHART
ROTATION” key to rotate the chart. Continue
pressing until the chart reaches the desired time
setting on the blue pen. The chart rotation will
reach full speed after a few seconds of holding
down the key. DO NOT attempt to rotate the
chart manually. The “CHART ROTATION” key
is also used as an “UP ARROW” key to increase
values when setting alarms or calibration values.

ALARM (optional)

The “ALARM” key turns the alarm on or off.
When the alarm is on the display will ash the
MAX & MIN indicators. Holding the “ALARM” key
for 2 seconds will cause the unit to enter into the
alarm set mode for pen 1 (humidity). Pressing and
holding the “ALARM” key for 2 seconds will cause
the unit to enter into the alarm set mode for pen
2 (temperature). For a visual alarm the display
will read MIN if a minimum alarm is activated or
MAX if the maximum alarm is activated. The alarm
condition will also trigger an audio alarm if the
audio alarm is enabled (dip switch #8 is off). The

On/ Off

alarm will sound until it is disabled, or until the
alarm condition no longer applies.
The “PEN HOME” and “CHART ROTATION” keys
are used for setting alarms. The “PEN HOME”
key decreases the alarm value and the “CHART
ROTATION” key increases the alarm value.

1. To set the alarms press the “ALARM” key
and hold for 2 seconds. The humidity
alarm minimum set point will be displayed
with A and MIN will also be displayed.

2. Use the “HOME” key to decrease the
minimum alarm setting and the “CHART
ROTATION” key to increase the minimum
alarm setting.

3. Press “ALARM” key a second time and
the humidity alarm maximum set point
will be displayed along with A and MAX
indicating that you can now set the
maximum alarm. Use the same procedure as
in step #2 for setting the maximum alarm
setting.

4. Press and hold the “ALARM” key for
2 seconds and the temperature alarm
minimum set point will be displayed along
with A and MAX indicating that you
can now set the minimum alarm. Use the
same procedure as in step #2 for setting
the minimum alarm setting.

5. When you have set the alarms press the
“ALARM” key again to exit the alarm setting
mode.

6. To activate the alarm, press the “ALARM”
key.

LED

The LED will be green whenever the nit is
activated. The LED will ash green during
initialization and warm-up. The LED showing red
indicates the unit is in calibration mode. The LED
turns orange during shut down. The LED will also
ash when the unit is on and if the AC power
has failed at any time since the unit has exited the
warm-up period.

Dip Switch Set Up

Downloading

To set up the TH6 for your specic application,
you might need to change some of the
Dip Switches. The Dip Switches are located
underneath the chart. Use a pen or small screw
driver to ip the switches. Remember to install
correct chart to match corresponding Dip Switch
setting.

ON

Dip Switch #1 is not active on TH6
Dip Switch #2 is not active on TH6

Recording Time:

The TH6 has two different recording time
options: 24 hour and 7 day. Dip Switch #3
controls the recording time.
24 hour #3 On (1 min logging sample interval)
7 day #3 Off (6 min logging sample interval)

Calibration

Your instrument was carefully tested and
calibrated before being shipped from the factory.
For greatest accuracy, we recommend factory
re-calibration every 6-12 months. Call customer
service at 630-543-3747. If you wish to
do calibration yourself, follow these procedures
(TH603 only).

1. Identify a standard that is more accurate than
this unit.

2. Place the probe of the unit (or for units
without probe place the entire unit) and
the standard into a controlled environment,
allowing unit to completely stabilize. For
best results, calibrate the unit at levels
typically monitored during normal operation.

3. To activate the calibration mode, turn the
unit off. Now press the “ON/OFF” key and
the “ALARM” key at the same time. The
unit is in the “USER CALIBRATION” mode
when the red LED is on. The display will
show a C during the warm up period and
then will ash between O & H. Match

Data Logging

All TH6 models will store up to >3800
measurements (>1900 temperature & >1900
humidity) when started by the optional software
and cable. The sample interval is determined by
Dip Switch #3. Connect the cable by inserting

Temperature Range
TH6 Dip Switches for Ranges

0 to +100˚F +32 to +100˚F #4 Off

Removable Probe Only Self Contained

0 to +185˚F
#5 On

0 to +50˚C #4 On
#5 Off

0 to +85˚C
#5 On

Dip Switch #6 is not active on TH6
Dip Switch #7 is not active on TH6

Alarm Speaker:

The alarm speaker may be activated or
deactivated with the use of Dip Switch #8.

Deactivated #8 On
Activated #8 Off

The Alarm speaker will sound during minimum
and maximum alarm conditions.
NOTE: Dip Switch settings are only updated when
the unit is turned on.

the reading of the recorder to the reading
of the reference standard. (The pen not
under calibration will position itself at the
center of the chart).

4. To raise the humidity press the “CHART
ROTATION (UP ARROW)” key. To lower the
humidity press the “HOME (DOWN ARROW)”
key.

5. Press the “ALARM” key to switch from
temperature to humidity or humidity to
temperature. Repeat step 4 for temperature
calibration.
To ensure you have matched the standard allow
the pen to stabilize for at least 30 seconds before
exiting calibration mode.

6. When calibration is complete, simply press
the “ON/OFF” key to save the calibration
settings.

Calibration is stored in memory even after you
turn the unit off. User calibration information will
not be lost if AC power fails, even without battery
back-up.

the 2.5mm jack into the TH6 and the other end
if the cable into a working serial port on your
computer. For software installation and usage
instructions refer to software package.

Removable Probe Only

Removable Probe Only

#5

#4 Off

#4 On

• With the TH6 powered on, unplug the AC
adapter (battery must be installed).

• Take the unit to the computer with
DicksonWare™ installed.

• Plug in the AC adapter.

• Remove the plug from the data logging
download access port.

• Plug the mini-stereo jack end of the
download access port.

• Launch DicksonWare™ by either double­ clicking the icon, or Start menu: Programs:
Dickson: DicksonWare™

• Verify the download cable is connected
to the proper port under the “Logger” menu,
“Port”.

• Under the “Logger” menu, “Transfer” or hit
the F12 key.

NOTES:

• A discontinuity in logging, caused by turning the unit off is indicated by a negative spike of -46.0%
RH and -43.3˚C or -46.0˚F

• The 9V battery should be installed prior to use of the TH6. If the TH6 loses power and does
not have a battery installed, a spike will appear in the data downloaded by DicksonWare™. This
spike represents the time that the unit was without power. Any data before this spike will be
associated with an incorrect time.

• DicksonWare™ calculates the time of readings based on the current time of the computer. It
matches up the last reading taken with the current time of the computer. The TH6 should not
be turned off before downloading so as not to lose any readings and therefore have an incorrect
time associated with all other readings.

• Name the data to be downloaded. The
default will be the serial number of the unit.

• Hit O.K. when asked to verify that the system
time is correct.

• DicksonWare™ will then transfer the data
from the TH6 to the le specied.

• If there is no graph le open, under the “File”
menu, click “Create New Graph File.”

• To view this data, click on “Insert Logger File”
under the “File” menu. Find the correct data
le, click on it and click “O.K.”

• Verify both Temperature and Humidity will be
inserted by clicking “O.K.”

• The data will appear on the graph.

Chart Installation

Use the following procedure to install or replace
a chart in the recorder.

1. Open the door by pressing the door latch.

2. Press the “HOME” key to move the pens
to the pen lift position. The pens are
automatically raised off of the chart.

3. Remove the old chart, place the appropriate
new chart on the chart hub - being certain
that the edge of the chart slides under the

chart guide clips located at the outside of the
chart.

4. Press the “HOME” key to move the pens onto
the chart.

5. Set the time by pressing the “CHART
ROTATION” key, which rotates the chart. The
chart will continue to rotate until the key is
released. Release the “CHART ROTATION”
key when the appropriate time is indicated at
the time indicator clip.

Pen Installation

Disposable ber-tipped pens are installed in
this recorder. When pen replacement becomes
necessary. When pen replacement becomes
necessary, use the following procedure:

1. Press the “PEN HOME” key to return the pens
to the home position.

2. Gently lift the pen slightly and it off of the
pen arm.

3. Slide the new pen of the same color on the

pen arm until the notch in the pen is secure
to the pen arm.

4. Remove the pen cap. Insert on the Pen Cap
Holder.

5. Press the “PEN HOME” key to return the pen
to recording position.
NOTE: To prolong pen life, replace pen cap when
recorder is not in use. The pen cap can be stored
on pen cap holder located on the dial plate of the
recorder.