Supco KTT User Manual

CR4-KTT RECORDER

TWO TEMPERATURE SENSORS

WITH

The CR4 is a precision, multifunction chart recorder. With the KTT adapter, the

4-KTT becomes a two temperature chart recorder with a digital display, con-

CR
sisting of two temperature sensors TP6 (or optional TP15), an interface adapter
and a cable to connect the interface box to the recorder. Each temperature sen­sor is enclosed with a 4 inch stainless steel jacket which may be immersed in
any solid or liquid which is compatible with 300 series stainless steel.

The recorder was designed with the user in
quired to operate the CR4-KTT. The menu driven setup is logically simple and
user friendly. All parameters are shown on a two line alphanumeric LCD display.
The backlighting of the display enhances visibility under marginal lighting condi­tions.

The CR4-KTT uses two independent pens and records information on a 6 inch
circular chart. Each pe
rotation of the chart may be set to Single Turn or Continuous.

In addition, a full function alarm feature is provided. The alarm of the CR4-KTT
can

be set to sound an audible signal when the temperature 1 and/or tempera­ture 2 has exceeded an upper or lower limit. Each limit is individually set from
the front panel. A delay time before the alarm is activated may be set by the user
to prevent nuisance alarms. Low power normally open relay contacts are pro­vided to allow activation of a remote alarm, phone dialer or annunciator.

Power is supplied through a 120VAC 50/60 Hz. plug-in adapter. External power
may be suppl
battery. Battery backup for 48 hours is featured to provide operation during tem­porary power loss.

All functions of the CR4-KTT a
the front panel. Selectable functions are retained in memory to avoid reentering
settings in the event of a power failure.

ied from any 12VDC source such as automotive, marine, or other

n is uniquely colored to maximize chart readability. The

re accessed through five pushbuttons located on

mind. No special knowledge is re-

QUICK START

1. Connect power supply adapter to CR4-KTT through jack on right side of
unit.

2. Plug power supply adapter into 120VAC outlet.

3. Press the “ON

4. Pens will move to the "Home

5. Pens will then go to a position on the chart according to the display read­ ing. This is called the RUN Mode. (Unit is always in the RUN mode when
display is showing temperature readings.)

” button.

" position (The outermost part of the chart).

1

MENU OR RUN?

The CR4-KTT has two basic modes of operation:

MENU mode. To review or change settings.
RUN mode. To display present conditions and record them.

If MENU mode is selected, the user can:

Set Chart Speed/Range.
Set Single or Continuous Chart Rotation.
Set Alarm Status (Alarm delay section of MENU will not sh
alarm is disabled.):

Alarm Delay = 0
Alarm Delay = 10 Minutes/20 Minutes/1 Hour/2 Hours

ow when the

If the ALARM is enabled, t

Set Temperature 1 High Limit
Set Temperature 1 Low Limit.
Set Temperature 2 High Limit.
Set Temperature 2 Low Limit.
After menu setting, unit will automatically go into the RUN Mode after 30
seconds.

If the RUN mode is selected:
The display will show Temperature 1 and Temperature 2.

While in the RUN mode, the user can:

Home the pens by pressing the HOME sw
of charts and pens.)
Set blue pen position.
Set red pen position.
Advance the chart by pressing the ADV button
with chart.)

he following menu selections will be available:

itch. (Allows for easy changing

. (To match present time

How to Change the Chart

1. Press the HOME button to move the pens to the outer edge of the chart.

2. Lift the pens with the lever. (Just enough to lift the pens from the chart.)

3. Remove the old chart.

4. Install the new chart on to the spindle.

5. Rotate the chart to the starting point with the ADV button.

6. Lower the pens.

7. Press the MENU butto

8. If the pen(s) position needs adjustment, see Pen Adjustment section be­ low.

n. This will put Recorder in the RUN Mode.

3

CHART SPEED AND RANGE

The CR4-KTT offers 42 combinations of Chart R
match a wide variety of applications. All functions of Chart Speed and Chart
Range have been combined in one menu to make the necessary selections as
easy and as fast as possible. A further aid to the user is the Supco chart number
shown on the display for any combination of Chart Range and Chart Speed.

Chart Speed is the term used to describe the time it takes for the recording chart
to mak

e one complete revolution. Different applications will require different
chart speeds. For example, the 31 Day Chart would generally be used where
long term monitoring is required and frequent changing of the charts would be
undesirable. The main disadvantage of this is that short term variations in tem­peratures will record as a single line or step on the chart. In applications that
have short term temperature variations the user may prefer a faster chart speed
for more accurate analysis.

The fastest chart completes one revolution in 1 1/2 hours. This allows the user to
record short term variations in temperature
would be to test the defrost cycle in a frost free freezer or to observe the settling
time of a temperature control system. Chart Range can be selected by the user
for °F or °C. Recorder will retain this information even when the power is discon­nected or the unit turned off.

If the measured Temperature is o
will read the actual temperature, but the pen will not go beyond limit of the chart.

ut of range (for the chart selection), the display

anges and Chart Speeds to

in great detail. An example of this

How to Set the Chart Speed and Range

1. While in the RUN mode, press the MENU button. This will show the Beeper is

ON (OFF) message. Press the MENU button again and the display will pres-

ent the setting for chart speed.

2. To select a longer chart speed, press the A button, for

press the B button. Each time the A or B button is pressed, the speed will
change. Whatever speed is on the display will become the chart speed. The
available chart speeds are:

shorter chart speeds

1.5 Hours 6 Hours 24 Hours 31 Days
3 Hours 12 Hours 7 Days

3. Press the MENU button again to go to the chart selection menu. To change

the chart range and chart number, press the A or B button. Each time the A or
B button is pressed, the range will change. Whatever range is on the display
will become the chart range. Note that the chart number is displayed with the
chart range for the user’s convenience. The available chart ranges are:

-20°F to +120°F/-20°F to +50°F +5°C to +45°C/-30°C to +10°C

+40°F to +110°F/-20°F to +120°F -30°C to +10°C/-30°C to +50°C

-20°F to +50°F/+40°F to +110°F -30°C to +50°C/+5°C to +45°C

4

4. Press MENU to proceed in MENU Mode. If no button is pressed for 30

seconds, the recorder will automatically return to the RUN Mode or to go to
RUN Mode from here, press MENU once, then press B for RUN.

How to Set Single Turn or Continuous Chart Rotation

The recorder can be set to rotate chart continuously or stop after one revolution.

1. Press MENU until "Single Turn or Continuous" message appears.

2. Press A to toggle between Single and Continuous.

3. Press B to go to RUN Mode.

4. Press MENU to continue in MENU Mode.

ALARM AND DELAY

When Temperature 1, Temperature 2 or both measurements pass above or be­low the thresholds, set in the menu function, the CR4-KTT will execute a preset
operation. This operation is described as an Alarm condition or a Delay condi­tion and is referred to simply as Alarm or Delay.

Alarm indicates that one or both measurements are above or below the preset
thresholds so the CR4-KTT is sounding the audible alarm and has closed the
relay contacts. The display will also be flashing the parameter that has caused
the Alarm condition.

Delay is a condition in which one or both thresholds have been passed, but the
audible alarm and relay contacts are not activated for a preset delay time. Delay
is used to prevent nuisance and false alarms.

Example:

In the normal operation of a frost free freezer an automatic defrost cycle takes

place periodically. Without the Delay function this would cause a false alarm in­dicating a freezer failure, when in fact no failure has occurred.

The Delay can also be used to prevent nuisance alarms on coolers or similar
devices that have frequent door openings. Without the Delay function, an alarm
would be started as a result of a short term increase in temperature caused by
the door being opened and again no failure of the system has occurred.

The CR4-KTT allows the user to select one of five Delay times, zero Delay, 10
minutes, 20 minutes, 1 hour or 2 hours. The delay time selected will depend on
the application and will vary from installation to installation. It is up to the judg­ment of the user to determine the best delay time for a given application. When a
Delay Time of zero is used the Delay function is disabled. When a temperature
threshold is passed, the audible alarm and relay contacts will close immediately.
If a Delay time other than zero is selected, the audible alarm and contacts will
not activate until one or both temperature thresholds have been exceeded con­tinuously for the period of the Delay time. The display will flash the parameter
which has caused the Delay condition to alert the user that one or more thresh­olds have been passed. At the end of the Delay time the audible alarm will
sound and the relay contacts will close.

5

How to Silence the Alarm: (Relay Contacts Remain Closed.)

1. Press MENU and the display will show "Beeper is ON” message.

2. Press A to turn off alarm (only sound will be turned off, relay will be closed).

3. Press B to turn alarm (sound) on.

4. Press MENU to continue in MENU Mode.

How to Set the Alarm & Delay

1. Press MENU button until alarm status message appears.

2. Press button A to scroll through options:

Zero Delay 20 Min. Delay 2 Hour Delay
10 Min. Delay 1 Hour Delay Alarm Disabled
(If the alarm is disabled, you must enable the alarm to get the delay

sections of the MENU.)

3. Press B to go to RUN Mode or MENU to continue in MENU Mode.

TEMPERATURE 1 AND TEMPERATURE 2 LIMITS

The Temperature 1 and Temperature 2 Upper and Lower limits allow the user to
customize the alarm settings of the CR4-KTT to provide the greatest degree of
protection while at the same time preventing unnecessary alarms. Since each
application is unique, careful selection of the temperature thresholds are re­quired to provide the maximum degree of protection. Both Temperature high
and low limits may be set. If the alarm is enabled, and any of these limits are ex­ceeded, the display will blink the reading that went out of limit. An audible alarm
(Beeper) will sound and the relay contacts will close after the set delay time.
This delay time can be set as follows:

0 Delay 20 Min. Delay 2 Hr. Delay
10 Min. Delay 1 Hr. Delay

If the Alarm is not disabled, any of the four limits could trip the alarm, therefore
all four limits must be set or the alarm must be disabled if it is not being used.

SETTING THE LIMITS

Temperature Limit part of MENU will not show if alarm is disabled.

How to Set the Temperature 1 High Limit

1. Press MENU until "Temperature 1 High Limit" appears.

2. Press A to increase limit, B to decrease limit, or MENU to go to

Temperature 1 Low Limit. The A or B button can be held down if moving
temperature limit several degrees.

How to Set the Temperature 1 Low Limit

1. Press MENU until "Temperature 1 Low Limit" appears.

2. Press A to increase limit, B to decrease limit or MENU to go to Temper-

ature 2 High Limit.

6

How to Set the Temperature 2 High Limit

1. Press MENU until "Temperature 2 High Limit" appears.

2. Press A to increase limit, B to decrease limit or MENU to go to set Tem­ perature 2 Low Limit.

How to Set the Temperature 2 Low Limit

1. Press MENU until "Temperature 2 Low Limit" appears.

2. Press A to increase limit, or B to decrease limit. Press MENU to return to

RUN mode.

PEN POSITION ADJUSTMENT

NOTE: The blue pen has a longer arm to allow it to move over the red pen.
Therefore one pen will record at real time and the other will lag or lead by 3/16".

In the normal course of operation charts, and eventually pens, will have to be

changed on the CR4-KTT. When this occurs it may be necessary to adjust the
pen position to match the reading of the display. This is most likely to occur
when changing a pen.

How to Adjust the Blue Pen Position on the Chart (Temperature 2)

1. Press the HOME button until the display reads "Homing the Pens
Please Wait"

2. Press button A to select the pen adjustment menu.

3. Press button B to move blue pen in (toward hub) and button A to move
blue pen out (toward edge of chart).

4. Press MENU to select red pen

5. Press MENU again if no adjustment of the red pen is required, otherwise
go to the “Adjust Red Pen“ instruction (next section).

adjustment menu.

How to Adjust the Red Pen Position on the Chart (Temperature 1)

1. Press button A to move the red pen out (toward outer edge of the chart).

2. Press button B to move the red pen in (toward hub).

3. Press MENU to return to the

RUN mode.

TEMPERATURE SENSORS

• Each sensor converts the temperature to the electrical signal that the recorder

uses to record and display.

• Each sensor will measure temperature from -20°F to +120°F (-30°F to +50°C)

• The sen

300 series stainless steel.

• Sensors are interchangeable.

• Calibration by Supco to NIST traceable standards is available as an option.

sor tip may be immersed in any liquid or solid that is compatible with

7

BATTERY BACKUP OPERATIONS

Battery backup allows the CR4-KTT to continue operation in the event of a
power loss. Actu
the batteries. With fresh alkaline batteries the typical operating time will be 48
hours (when operating on battery only). Alkaline batteries are essential for this
type of application.

When the main power is lost the CR4-KTT will sense this and immediately turn
off the backlight on the LCD display. A “B” will be displayed in the upper right
hand corner of the display to advise the user that the CR4-KTT is operating on
battery power. No other indication will be visible. The temperature and chart re­cording will continue until the batteries have been exhausted or the AC power is
restored.

The CR4-KTT will monitor the battery power and when the batteries are almost
exhausted, a "Low Battery" message will appear on the display. The batteries
should be replaced as soon as possible to avoid erroneous readings. This pre­vents possible damage due to battery leakage and also assures that the CR4­KTT will remain in operation in the event of another power failure. The suggested
battery backup consists of eight AA cells, however, a standard nine volt battery
could be used to provide approximately one hour of backup. The following chart
shows the life expectancy of various types of batteries.

Batte

ries

Eight Alkaline AA cells 48 Hours
Eight Rechargeable Nicad AA cells 24 Hours
Standard 9 Volt Alkaline Battery 1 Hour

al operating time on battery will depend upon the condition of

The life expectancy of the batteries is based on the time when the CR4-KTT
is being operated on batteries only. It is good practice to replace these bat­teries every year. Do not keep batteries in CR4-KTT when not in use.

RS-232 PORT

The CR4-KTT provides an optional RS-232C port to allow the user to connect the
recorder to a computer or network
being recorded. An adapter cable is supplied with this option to facilitate con­nection to an external computer.

Data is transmitted every time the sensor
during an update of the pen position. The data is delimited ASCII text and will
transmitted as Temperature 1 and Temperature 2. The port parameters are a
follows: 4800 baud, 8 Data Bits, No Parity & 1 Stop Bit.

and allows continuous monitoring of the data

is sampled and is only interrupted

8

CR4-KTT SPECIFICATIONS

Operating Ambient Temperature Range +32°F to +120°F (0°C to +50°C)
Storage Temperature 0°F to +120°F (-18°C to +50°C)
Primary Power 115 VAC, 50/60 Hz. adapter (220-

240 VAC, 50 Hz. optional)

Backup Power 8 AA alkaline batteries (not sup-

plied)

Alternative Power 12 Volt vehicle operation with op-

tional adapter
Temperature Accuracy +/- 2°F (+/- 1°C)
Sensor Supco Part # TP6 Temperature

sensor with 6' cable (extended

cable length is available)
Chart 6" Circular chart (see following

table)
Chart Rotation Speeds 31 Days, 7 Days, 24 Hours,

12 Hours, 6 Hours, 3 Hours and

1.5 Hours

Chart Rotation Mode User Selectable — Single turn or

Continuous
Chart Speed Accuracy +/- 1 %
Display Alphanumeric backlit LCD,

16 Characters, 2 Lines
Temperature Alarm Range -20° to +120°F (-30° to +50°C)
Alarm Delay Range No Delay, 10 Min., 30 Min., 1 Hr. or

2 Hr.
Remote Alarm Connection Normally open contacts 48

VAC/DC, 0.1 Amp., dry contacts
Mounting Vertical or horizontal, free standing

or wall mounted
Dimensions 9.25" x 7.25" x 2
Weight 2.5 lb.
Power Consumption 3.5 Watts maximum

CHARTS

Temperature Ranges
Range 1 Range2

-20° to +120°F -20° to +50°F CRTT2-2 CRTT2-1 CRTT2-3 CRTT2-21

-20° to +50°F +40° to +110°F CRTT2-5 CRTT2-4 CRTT2-6 CRTT2-19

+40° to +110°F -20° to +120°F CRTT2-8 CRTT2-7 CRTT2-9 CRTT2-20

-30° to +50°C +5° to +45°C CRTT2-11 CRTT2-10 CRTT2-12 CRTT2-22

+5° to +45°C -30° to +10°C CRTT2-14 CRTT2-13 CRTT2-15 CRTT2-24

-30° to +10°C -30° to +50°C CRTT2-17 CRTT2-16 CRTT2-18 CRTT2-23

*For 1.5 Hour, 3 Hour or 6 Hour readings, use 12 Hour charts.

12 Hours

9

Chart Speeds

24 Hours 7 Days 31 Days

CR4 SERIES RECORDER LIMITED WARRANTY

Sealed Unit Parts Co., Inc. hereby warrants that
tion, any part of the Universal Series recorder, which proves defective by reason
of improper workmanship or material, free of charge for parts and labor, for a
period of one year from the date of original purchase by the buyer. This warranty
does not apply if, in the sole opinion of Sealed Unit Parts Co., Inc., the Universal
Series has been intentionally damaged due to misuse, neglect, improper pack­ing, shipping, modification or servicing by other than Sealed Unit Parts Co., Inc.,
or personnel authorized by Sealed Unit Parts Co., Inc.. For information on how
to obtain service under this warranty contact the dealer where your Universal Se­ries recorder was purchased, or Sealed Unit Parts Co., Inc. at the address
printed below:

Sealed Unit Parts Co., Inc.
P.O. Box 21
2230 Landmark Place
Allenwood, NJ 08720 USA
Phone: [phone]
FAX: [phone]

it will repair or replace, at its op-

LIABILITY DISCLAIMER STATEMENT

Sealed Unit Parts Co., Inc. (hereafter known as Supco) makes no
resentation, or guarantee regarding the suitability of its products for any par­ticular purpose, nor does Supco assume any liability arising out of the applica­tion or use of any product, and specifically disclaims any and all liability, includ­ing without limitation consequential or incidental damages.

warranty, rep-

Supco products are not designed, intended, or authorized for use as compo­nents

in life support systems, or for any other application in which the failure of
the Supco product could create a situation where personnel injury or death or
significant financial loss may occur.

Should any person or persons purchase or
unintended or unauthorized application, that person or persons shall indemnify
and hold Supco, and its officers, employees, and affiliates, and distributors
harmless against all claims, costs, damages, and expenses, and reasonable at­torney fees arising out of, directly or indirectly, any claim of personal injury,
death or financial loss associated with such unintended or unauthorized use,
even if such claim alleges that Supco was negligent regarding the design or
manufacture of the product in question.

use Supco products for any such