Dickson FH121, FH125, FT121 Instruction Manual

Page 1

Replacement Parts

Contact Dickson at 1-800-323-2448 for additional probes or download cables.

Factory Service and Returns

Temperature / Humidity Recorder

We recommend that damaged instruments be returned to our factory for complete repair. Before returning any instrument or package, please contact Dickson at 1-800-323-2448 for a Return Authorization (RA) Number. When calling, please have the following information available.

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

Miscellaneous

Military Time System: AM Times:

12:00AM... 00:00:00 6:00 ............06:00:00

1:00 .......... 01:00:00 7:00............07:00:00

2:00 .......... 02:00:00 8:00............08:00:00

3:00 .......... 03:00:00 9:00............09:00:00

4:00 .......... 04:00:00 10:00..........10:00:00

5:00 .......... 05:00:00 11:00..........11:00:00

The Dickson Warranty

Dickson warrants the FH121/125 and FT121 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 Number (see repair information above). It will be repaired or replaced at Dickson’s option without charge. This warranty

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, AND its probe if FH125, shipping prepaid. Delivery will be refused for packages sent without RA numbers.

PM Times:

12:00PM ... 12:00:00 6:00 ............18:00:00

1:00 .......... 13:00:00 7:00............19:00:00

2:00 .......... 14:00:00 8:00............20:00:00

3:00 .......... 15:00:00 9:00............21:00:00

4:00 .......... 16:00:00 10:00..........22:00:00

5:00 .......... 17:00:00 11:00..........23:00:00

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 or 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.

Rev. 7/01

FH121/

FH125/FT121

ON/

OFF

VIEW

CURSOR

ESC

Page 2

FH121 Specications

FH121 Temperature Scales:

0 to +100˚F/C, 0 to +50˚F/C

Temperature Range:

0 to +120˚F (Display: -4˚F to +158˚F, max limits)

Temperature Sensor: Thermistor Temperature Accuracy: ±1.8˚F Humidity Range: 0 to 95%RH Humidity Sensor: Capacitive Humidity Accuracy: ±2%RH at 73˚F Chart Intervals: 64 minutes, 8 hours,

24 hours, 8 days, 16 days, 32 days

Weight: Approximately 1.1 lbs. Display: 240 x 128 pixels graphic LCD

FH125 Specications

FH125 Temperature Scales: 0 to +100˚F,

-40 to +185˚F, 0 to +120˚F, -20 to +40˚C, -40 to +85˚C, -20 to +50˚C

Temperature Range:

0 to +120˚F (Display: -4˚F to +158˚F, max limits) External Probe: -30 to +185˚F

Temperature Sensor: External Thermistor Temperature Accuracy: ±1.8˚F Humidity Range: 0 to 95%RH Humidity Sensor: Capacitive Humidity Accuracy: ±2%RH at 73˚F Chart Intervals: 64 minutes, 8 hours,

24 hours, 8 days, 16 days, 32 days

Weight: Approximately 1.2 lbs.

FT121 Specications

FT121: The FT121 is a two temperature model

with an external thermocouple probe (Channel 1), and an internal sensor (Channel 2).

FT121 Temperature Scales: 0 to +100˚F/C, 0 to +250˚F/C, 0 to +500˚F/C, 0 to +1000˚F/C, 0 to 2000˚F/C, -50 to +50˚F/C, -100 to +100˚F/C,

-200 to +200˚F/C

Temperature Range:

Unit: 0 to +120˚F (Display: -4˚F to +158˚F, max limits) Thermocouple Probe: -300 to +2000˚F (-184 to +1093˚C)

Temperature Sensor: K-type Thermocouple (external probe); Thermistor (internal sensor)

Temperature Accuracy: ±1.8˚F (±1˚C) Chart Intervals: 64 minutes, 8 hours,

24 hours, 8 days, 16 days, 32 days

Display Update Rate: Data: Varies with logging interval, 20 secs to 180 secs

Power Supply: 120V AC adapter with 9V battery for back-up power

Dimensions: 7.0” x 5.0” x 2.0” Memory: 15,872 samples per channel Sample Rate: Varies depending on the

horizontal chart interval selected. May be as often as 20 seconds up to 180 seconds. See table in “Data Logging” section of manual.

Ambient Operating Conditions:

+32 to +122˚F (0 to +50˚C) 0 to 90% RH (non-condensing)

Display: 240 x 128 pixels graphic LCD Display Update Rate: Data: Varies with

logging interval, 20 secs to 180 secs Power Supply: 120V AC adapter with 9V

battery for back-up power

Dimensions: 7.0” x 5.0” x 2.0” Memory: 15,872 samples per channel Sample Rate: Varies depending on the

horizontal chart interval selected. May be as often as 20 seconds up to 180 seconds. See table in “Data Logging” section of manual.

Ambient Operating Conditions:

+32 to +122˚F (0 to +50˚C) 0 to 90% RH (non-condensing)

Weight: Approximately 1.2 lbs. Display: 240 x 128 pixels graphic LCD Display Update Rate: Data: Varies with

logging interval, 20 secs to 180 secs Power Supply: 120V AC adapter with 9V

battery for back-up power

Dimensions: 7.0” x 5.0” x 2.0” Memory: 15,872 samples per channel. (If

Channel 2 is disabled using DicksonWare™, 31,744 samples can be taken on Channel 1)

Sample Rate: Varies depending on the horizontal chart interval selected. May be as often as 20 seconds up to 180 seconds. See table in “Data Logging” section of manual.

Ambient Operating Conditions:

+32 to +122˚F (0 to +50˚C) (Display: -4 to +158˚F, max limits) 0 to 90% RH (non-condensing)

Troubleshooting

First, inspect the unit for signs of physical damage which should indicate abuse, or that it has been dropped or exposed to dust, dirt, corrosive fumes or liquids.

None of the keys work:

• Has the unit been connected to power or is the battery dead?

• Is the AC adapter working?

• Is the unit displaying the large charcaters on screen 2? All keys are disabled when displaying the large real time characters.

If the graph has reached the end of the screen, when a new pixel is drawn, the unit will blank the screen and redraw the graph shifted to the left by one pixel. This takes a few seconds to complete and the keys are disabled momentarily. If you are downloading the data, the keys are disabled during download and will not function until the download is complete.

The display doesn’t work:

If the unit is not connected to AC power, it may be in sleep mode. Press “ON” to wake it up. If this doesn’t work, make sure the back-up battery is good. Also, if the logger is in a cold environment, the display contrast may have to be adjusted. If it is colder than -4˚F, it is possible to damage the display.

The clock stopped running when I download data:

This is normal operation. The clock will start up again once communication with the PC is completed.

The readings are incorrect:

Check to be sure the probe is connected securely (FH125/FT121), if so, and incorrect readings persist, then return unit to Dickson for calibration.

Clearing and resetting:

See “clearing and Resetting” in the section on Programming the Unit.

Only one of the graphs show:

Temperatures greater or less than the scale limits will not be seen on the display. They may still be seen in the lower left real time value display. Possibly, one of the sensors is bad. Return unit to Dickson for repair.

Calibration

Your instrument was carefully tested and calibrated before being shipped from the factory. For greatest accuracy, we recommend re-calibration every 6-12 months. Call customer service at 1-800-323-2448. The FH125 and its

If you have DicksonWare™ version 6.0.3.1.0 or later, look in the setup section to see if the humidity channel has been disabled, and if so, re-enable it.

There is a blank space in the data graph:

• Does the blank space correspond to the time when the temperature rose or fell quickly or fell below or rose above the scale limits on the screen, or was AC power and back-up battery disconnected at the same time? Try a wider vertical range setting or download the data to a PC. If there is still a gap in the data, try resetting the logger. If the problem continues, return the logger for repairs.

The cursor key doesn’t work:

Cursor will not function until there is a graph on the screen of at least 2 data points. Also, the cursor will not function if the menus are open or you have the unit set to the large character display mode.

• Is the graph at the end of the screen? If so, it may be redrawing the graph. During the shifting over of the graph, all keys are momentarily disabled for about 3 seconds. This will be more noticable on smaller horizontal time scales.

There’s a message that says “Battery Low”:

This message will appear if you are running on the bac-up battery and the battery voltage is getting low. this means it is time to change the battery. Once the battery gets too low, the unit will stop functioning properly. The message will go away when the unit is reconnected to the AC adapter power supply or a new battery.

The battery was replaced but now the unit does not turn on:

Make sure that when you changed the battery, you did not accidently disconnect the keypad from the circuit board.

If both battery and AC are disconnected at the same time:

The unit will continue logging where it left off once it is re-connected. There may be a jump in the data graphs corresponding to the changes in the environment during the period when power was lost.

external probe are calibrated together. If you have multiple FH125s, you may not interchange probes. If you do so, then readings will not be accurate. Calibration is only good if each FH125 is matched with its original probe.

Page 3

Operating Information

Power Supply:

We recommend using the supplied AC adapter 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.

To replace the back-up battery:

1. Keep unit plugged into the AC adapter while changing the battery

2. Unscrew 4 screws in recessed holes on back of the unit

3. Replace 9V battery

4. Replace back cover and 4 screws holding it A small internal battery preserves the date and time settings should AC power and back-up battery be disconnected at the same time. This battery is only for the time clock and will not keep the logger running.

General:

The FH121/125, FT121 logs data and formats it for display on a graphic LCD display. Data may be downloaded to a personal computer using DicksonWare™ version 6.0.3.1.0 or later.

Cursor Mode:

Cursor mode may be used in order to view the exact data values recorded at a given pixel on the screen. To enter cursor mode, press the

Quick Start

When the unit is connected to the recommended AC adapter power source, it will continuously display the Temperature, Humidity, internal clock date and internal clock time. The unit will also display a graph of the temperature and humidity values over a time interval that is adjustable from full screen times of 64 minutes up to 32 days. The internal data may be downloaded for viewing or saved on a personal computer using DicksonWare™ version 6.0.3.1.0 or later. The screen will always display the most current data points and when the graph reaches the end of the screen, the entire graph will shift to the left by one pixel as each new pixel is drawn. In this manner, you will always see the most current graph.

Getting Started:

1. Insert back-up battery

2. Plug AC adapter into the FH121/125 or FT121.

3. Go to menus and set the Date, Time, Horizontal Scale, Vertical Scale, and fahrenheit or celsius scale. See detailed instructions in the “Programming the Unit” section.

“CURSOR/ESC” key. The time and date in the lower right corner will be replaced by the darkened message “Cursor Mode”. Also, the values in the lower left corner will appear as white characters on a dark background. The values that are then displayed are the data values of the intersection points of the cursor and the graphs. You may move the cursor to the left or right to view the data values of any specic pixel on a graph. In cursor mode, the only keys that will function are the “LEFT” arrow, “RIGHT” arrow and “CURSOR/ESC” keys. To exit cursor mode, press the “CURSOR/ ESC” key once more.

Serial Number:

The serial number of the unit may be viewed by holding the “LEFT” arrow key for 1 second when you are viewing the large character display. Pressing the “LEFT” arrow key again will turn off the serial number display.

FH121/125:

Lower left corner of display is formatted with temperature on top and humidity on bottom.

FT121:

Lower left corner of display is formatted with external thermocouple temperature on top and internal sensor temperature on bottom.

4. FH125:Plug in external probe.

5. FT121: Connect thermocouple probe

Cursor Display:

Once the unit has drawn at least 2 pixels, pressing the cursor button will turn the cursor on or off. The cursor may be moved left or right to view the exact data value logged at some pixel on the screen. The Time and Date displays in the lower right corner will be disabled temporarily and will display the message, “Cursor Mode”. Also, the real time display values of Temperature and Humidity will go dark to indicate that you are in cursor mode and they will indicate the temperature and humidity values of the graph where it intersects with the cursor.

Large Character Display:

When the view key is pressed, the screen will switch to a large display of the current temperature and humidity. In this mode, logging of data and updating of the graph continues internally. You may switch back to the graphing screen simply by pressing the “VIEW” key again. This mode is provided so that the temperature and humidity may be viewable from across the room.

Keypad Information

Basic Description:

The keypad allows you to program the unit without having to connect it to a personal computer. There are eight keys on the front panel of the unit. Descriptions of their function and operation follows:

VIEW

OFF

ON/ OFF KEY

Figure 4

SET

CURSOR

(ESC)

This key turns the unit on and activates the screen. It also wakes the unit if it is in sleep mode. If running only on battery the unit will place itself in sleep mode after a period of up to 20 seconds if the user has not pressed any keys. During sleep mode, logging continues to take place but the display is turned off to conserve power. However, with AC adapter connected, the unit will never go into sleep mode, and the display will always be on.

VIEW KE Y

Causes unit to switch from the graph display to a large character display of the current temperature and humidity. Pressing the “VIEW” key again will switch back to the graph display. When the unit is displaying the large character values of temperature and humidity, logging of data continues, however, no other keys or menus will function until you switch back to the graph display.

Menus

The FH121/125 and FT121 have a menu system that enables you to program the unit’s various parameters without having to connect it to a personal computer. The menus allow you to set or adjust the following:

1. The internal clock date and time

2. The vertical ranges

3. The horizontal time scale

4. Fahrenheit or Celsius display of data

5. Clear all logged data and reset the unit (programming choices are preserved) To access the menu, press the “SET” key once. Press the “SET” key repeatedly to display all of the menu options one after another. After the last item, the menu wil return to the normal temperature/humidity display. While scanning

Programming the Unit

Setting Horizontal Time Scale:

The horizontal scale setting is used to adjust the full scale time span of the displayed data graph. By selecting different time per divisions, you can set the graph area for a full scale display of 64 minutes, 8 hours, 24 hours, 8 days, 16 days and 32 days. To adjust the horizontal time scale, press

LEFT A RROW

The left arrow key is used in the menu mode to move the menu system cursor to the left. In Date & Time modes, if the menu system cursor is at its left-most position, the “LEFT” arrow key will bring it around onto the right side.

UP ARRO W

Move up or adds 1 to number presently selected by cursor.

DOWN AR ROW

Moves down or subtracts 1 from number presently selected by cursor.

RIGHT A RROW

The “RIGHT” arrow key is used when the unit is in the menu mode. It is used to move the menu system cursor to the right. In Date & Time modes, if the menu sytem cursor is at its rightmost position, the “RIGHT” arrow will bring it around onto the left side.

SET

Programs the menu choices slected in the menus into logger memory. Also, the “SET” key, when held, or pressed repeatedly, will scroll the menu through all the menu options.

CURSOR /ESC KEY

When using the menus and editing data or settings, this key will exit the particular menu setting without saving. When not in a menu or displaying the large real time characters, this key will toggle the unit to and from cursor mode.

through the menu options, you may stop at any one of them to view or program new settings. You can also skip over any part of the menu that you do not want to change at that time. Each menu option has a short message explaining its function. There is a 2 second delay before the edit screen for that particular option will appear and you can change its settings. If you are in an editing mode, pressing the “ESC” key will back you out into the main menu. There is a 2 second time out before the menu will re-enter the edit section if you have not hit the “SET” key to move on to the next section. Select a value to edit, when setting date or time, by positioning the cursor in the eld for that value and using the “UP” and “DOWN” arrow keys to add or subtract from or number shown.

or hold the “SET” key until you get to the “SET TIME/DIV” message. After 2 seconds, the screen will display a message stating that you are about to clear the logger and that you may continue by pressing “SET”, or exit by pressing “ESC”. When you press “SET”, you will come to a menu where

Page 4

you can scroll up or down with a darkened cursor until you get to the desired TIME/DIVISIONS setting. Pressing “SET” will program that setting into the logger. The “ESC” key will exit without saving and take you to the next menu option.

Setting Vertical Scale:

Press or hold the “SET” key until you get to the “SET V SCALE” message. After 2 seconds, the screen will display a series of vertical ranges which you can select by pressing the “UP” or “DOWN” keys and scanning the available ranges until you nd the one you want. Pressing “SET” will program that setting into the logger. The “ESC” key will exit without saving and take you to the next menu option.

FH121: Possible vertical scale settings are: 0 to 100 and 0 to 50. These scales may be used in either fahrenheit or celsius. However, be aware that using the 0 to 100 celsius scale does not mean that the unit may be placed in an environment where the temeprature is 100˚C. 100˚C is equivalent to 212˚F and will damage the LCD display.

FH125: Possible vertical scale settings are: 0 to 100˚F, 0 to 120˚F and -40 to +185˚F, and -20 to +40˚C, -40 to +85˚C, and

-20 to +50˚C. When Fahrenheit or Celsius is selected, the unit will load only the set of ranges for that particular temperature scale.

FT121: Possible vertical scale settings are: 0 to 100˚, 0 to 250˚, 0 to 500˚, 0 to 1000˚, 0 to 2000˚, -50 to 50˚, -100 to 100˚, -200 to 200˚ (F or C).

Setting Fahrenheit or Celsius Scale:

Scan the menu choices until you get to “SET F OR C”. Release the “SET” key. After 2 seconds, the display will switch to a menu where you can scan up or down to select the desired temperature scale. To save your settings, press the “SET” key. To exit without saving, press the “ESC” key.

Date and Time:

Enter the menu by pressing the “SET” key.

Once in the menu, scan the menu choices by repeatedly pressing or holding down the “SET” key until you get to “SET DATE” or “SET TIME”. Release the “SET” key. After 2 seconds, the current date or time will appear below the given message. The date is the format: MM/DD/YY, where MM is the month, DD is the day of month and YY is the 2 digit year (2001=01). A cursor will indicate the eld of the date that will be edited. Use the “UP” or “DOWN” keys to adjust the number displayed. Use the “LEFT” or “RIGHT” arrow to move the cursor to a different eld and edit it in the same way. When you are done setting the date, press the “SET” key to save the new date setting into memory. The next menu choice will be the “SET TIME” section. Set the time in the same way as you set the date. The format of the time is: HH:MM:SS, where HH is the hour in military time (see section labeled “Miscellaneous” for a complete table of military times), MM is the minute and SS is the seconds. Press “SET” to store the new time into memory.

Clearing and Resetting:

The unit is cleared and reset whenever the horizontal time per divisions setting is programmed. To clear all data and reset the unit, go to the “SET TIME/DIV” menu, when the warning message appears, press “SET” and then press “SET” again when the Time/Divisions choices are displayed. If you have not changed the Time/Divisions setting, then the unit will keep the horizontal scale programmed but reset and clear all data. The unit can also be reset and cleared using DicksonWare™ version 6.0.3.1.0 or later.

Simple Reset:

In the unlikely event that the display stops functioning properly you can reset the unit without losing currently logged data by simultaneously pressing the “ON” and “ESC” keys for 2 seconds. Release the keys and the unit should return to proper operation.

Installation

Before you install your FH121/125, FT121, read through this entire manual.

Your FH121/125 or FT121 has been shipped with:

1. One 9V alkaline battery

2. One AC adapter

3. One operation manual

4. Two (2) rubber feet

5. One external probe (FH125) One external K-TC Probe (FT121)

For best performance and longevity, the location should be a clean environment, free form dust and corrosive fumes. Do not exceed temperature or humidity specications. The 9V battery is provided for back-up power should you wish to move the unit to a different location without losing data. If the AC adapter and the back-up battery are both disconnected, the logger may lose some of the programmed settings. The unit will continue to log data while running on battery back-up for up to 2 weeks on the fastest sampling rate. Longer battery life is possible with less frequent sampling rates. Actual

Instrument Anatomy

Figure 2

Normal Gra phing Mode

Temperature Gra ph

Humidit y Graph (FH121/125 only)

Real Time Data Displa y

Graph Lege nd

Time per Ho rizontal Division

Remote Prob e (FH125) or K-Thermocoup le Probe ( FT121)

ON/

VIEW

OFF

times may vary.

Free Standing:

Two self adhesive rubber feet are provided to allow the unit to stand on a desk or table. Place the feet along the lower front edge. see g. 3

Wall Mount:

Keyhole slots are provided for wall mounting.

4 inches

Figure 1

Downloa d Port

CURSOR

ESC

Detail of lower left

corner of display for

FT121 (thermocouple

R = Remote Sensor

I = Internal Sensor

97.9 RF

25.5 IF

FH121/125, FT121 back view.

Time and

Date

Power Jack

Keypad

model)

Data Logging

General:

The FH121/125 will log a temperature and humidity reading and the FT121 will log temperature readings every 20 seconds on the 8 mins/div scale, 30 seconds for the 1 hour/div and 3 hrs/div scales, 60 seconds for the 1 day/div and the 2 days/div scales, and 180 seconds for the 4 days/div scale. Horizontal scaling is achieved by counting data

Downloading

The stored data is downloadable using DicksonWare™ version 6.0.3.1.0 or better. Data may also be cleared using DicksonWare™. Multiple FH121/125 and FT121 may be

points logged before drawing to the graph.

Sampling Rates for Each:

Horizontal Time per Division Setting:

8 mins/div............. 20 seconds

1 hour/div............. 30 seconds

3 hours/div ...........30 seconds

1 day/div ..............60 seconds

2 days/div ............. 60 seconds

4 days/div ............. 180 seconds

connected to the same personal computer with the MP100 Multipoint Monitor. Call Dickson for purchasing information at: 1-800-323-2448

Figure 3

Large Charac ter Display

Real Time Temperature

Remote Prob e (FH125) or K-Thermocoup le Probe ( FT121)

Real Time

Humidit y

(FH121/125 only)

ON/

VIEW

OFF

Rubber Fe et

CURSOR

ESC

97.9

25.5

Large character view for FT121

EXT

INT

(thermocouple model)