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CR4-KTE RECORDER
WITH TEMPERATURE/EVENT SENSOR
The CR4 is a precision, multifunction chart recorder. With the KTE adapter, the
CR4-KTE becomes a temperature and event chart recorder with a digital display,
consisting of a temperature sensor TP6 (or optional TP15), an interface adapter
with a built in voltage detector, and a cable which connects to the CR4-KTE. The
CR4-KTE allows for independent recording of temperature measurement and
voltage detection, commonly described as Event Detection. The recorder was
designed with the user in mind. No special knowledge is required to operate the
CR4-KTE. 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-KTE uses two independent pens and records information on a 6 inch
circular chart. Each pen is uniquely colored to maximize chart readability. The
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-KTE
can be set to sound an audible signal when the temperature 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 120 VAC 50/60 Hz. plug-in adapter. External power
may be supplied from any 12 VDC source such as automotive, marine, or other
battery. Battery backup for 48 hours is featured to provide operation during temporary power loss.
All functions of the CR4-KTE are accessed through five pushbuttons located on
the front panel. Selectable functions are retained in memory to avoid re-entering
settings in the event of a power failure.
QUICK START
1. Connect power supply adapter to CR4-KTE through jack on right side of
unit.
2. Plug power supply adapter into 120 VAC outlet.
3. Press the ON button.
4. Pens will move to the "Home" position (The outermost part of the chart).
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.)
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MENU OR RUN?
The CR4-KTE 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 = 0
Alarm Delay = 10 Minutes /20 Minutes /1 Hour /2 Hours
(Alarm delay section of MENU will not show when the alarm is dis-
abled.)
If the ALARM is enabled the following Menu Selections will be available:
Set Temperature High Limit.
Set Temperature 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 the Temperature and the state of the Event Detector
(ON / OFF).
While in the RUN mode, the user can:
Home the Pens by pressing the HOME switch. (Allows for easy changing
of charts and pens.)
Set Blue pen position.
Set Red pen position.
Advance the chart by pressing the ADV button. (To match present time
with chart.)
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 button. This will put Recorder in the RUN Mode.
8. If the pen(s) position needs adjustment, see Pen Adjustment section below.
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CHART SPEED AND RANGE
The CR4-KTE offers 42 combinations of Chart Ranges and Chart Speeds to
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 make 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 temperature or short duration events will record as a single line or step on the chart.
In applications that have wide short term temperature variations or events of
short duration, 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 or events in great detail. An
example of this 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 is turned off.
If the measured Temperature is out of range for the chart selection, the display
will read the actual temperature, but the pen will not go beyond limit of the chart.
How to Set the C hart 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 shorter chart speeds
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 listed below:
31 Days 7 Days 12 Hours. 3 Hours.
24 Hours. 6 Hours. 1.5 Hours.
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 dis-
play 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 listed below:
-20°F to +50°F +40°F to +110°F -20°F to +120°F
-30°C to +10°C -30°C to +50°C +5°C to +45°C
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4. Press MENU to Proceed in MENU Mode. If no button is pressed for 30 sec-
onds 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 Tur n 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 the temperature passes above or below the threshold set in the menu
function, the CR4-KTE 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 the temperature is above or below the preset threshold and
the CR4-KTE is sounding the audible alarm and has closed the relay contacts.
The display will also be flashing the temperature to indicate an Alarm condition.
Delay is a condition in which the temperature has passed above or below the
thresholds, 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-KTE 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 the temperature threshold has been exceeded continuously for the
period of the Delay time. The display will flash the temperature to alert the user
that one of the thresholds have been passed. At the end of the Delay time the
audible alarm will sound and the relay contacts will close.
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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 sec tions of the MENU.)
3. Press B to go to RUN Mode or MENU to continue in MENU Mode.
TEMPERATURE LIMITS
The Temperature Upper and Lower limits allow the user to customize the alarm
settings of the CR4-KTE 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 temperature reading to indicate a limit has been exceeded. 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 Hour Delay
10 Min. Delay 1 Hour Delay
If the alarm is not disabled, the upper or lower limit could trip the alarm, therefore
both 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 High Limit
1. Press MENU until "Temperature High Limit" appears.
2. Press A to increase limit, B to decrease limit, or MENU to go to Tempera ture Low Limit. The A or B button can be held down if moving temperature
limit several degrees.
How to Set the Temperature Low Limit
1. Press MENU until "Temperature Low Limit" appears.
2. Press A to increase limit, B to decrease limit or MENU to return to the RUN
mode.
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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-KTE. 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 (Event)
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 adjustment menu.
5. Press MENU again if no adjustment of the red pen is required otherwise go
to the “Adjust Red Pen“ instruction (next section).
How to Adjust the R e d Pen Position on the char t (Temperature)
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 SENSOR
• The temperature sensor and interface box contain the sensors needed to con vert temperature and voltage to the electrical signals that the recorder uses to
record and display.
• Each sensor will measure Temperature from -20°F to +120°F (-30 to +50°C)
• The voltage detector will operate on any voltage source in the range of 24VAC
to 270VAC or 24VDC to 180VDC. Note that exceeding the voltage range of the
voltage detector can cause permanent damage to the adapter.
CAUTION!
Electrical connection to any type of operating equipment is dangerous. The
voltage detector leads should only be connected when it has been determined
that the power is off and the equipment is safe to touch!
• The sensor tip may be immersed in any liquid or solid that is compatible with
300 series stainless steel.
• Temperature Sensors are interchangeable.
• Calibration by Supco to NIST traceable standards is available as an option.
ATTERY BACKUP OPERATION
B
Battery backup allows the CR4-KTE to continue operation in the event of a power loss. Actual operating time on battery will depend upon the condition of the
batteries. With fresh alk ali ne batteries the typical operating time will be 48 hours
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(when operating on battery only). Alkaline batteries are essential for this type of
1. Eight Alkaline AA cells
48 Hours
2. Eight Rechargeable Nicad AA cells
24 Hours
3. Standard 9 Volt Alkaline Battery
1 Hour
application.
When the main power is lost, the CR4-KTE 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-KTE 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-KTE 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 CR4KTE 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.
Batteries
The life expectancy of the batteries is based only on the time when the
CR4-KTE is being operated on batteries only. It is good practice to replace
these batteries every year. Do not keep batteries in CR4-KTE when not in use.
RS-232 PORT
The CR4-KTE provides an optional RS-232C port to allow the user to connect
the recorder to a computer or network and allows continuous monitoring of the
data being recorded. An adapter cable (CR4CABLE) is supplied with this option
to facilitate connection to an external computer.
Data is transmitted every time the sensor is sampled and is only interrupted during an update of the pen position. The data is delimited ASCII text and will
transmitted as temperature and event status (ON / OFF). The port parameters
are as follows: 4800 baud, 8 Data Bits, No Parity and 1 Stop Bit.
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CR4-KTE SPECIFICATIONS
Operating Ambient
Temperature Range
+32°F to +120°F (0°C to +50°C)
Storage Temperature
0° 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 supplied)
Alternative Power
12 Volt vehicle operation with optional adapter
Temperature Accuracy
+/-2°F (+/-1°C)
Sensor
Supco Part # TP6 Temperature sensor with 6'
cable (extended cable length is available)
Voltage Detector
24 -270VAC 24 -180VDC
Minimum Event Period
7 Seconds
Minimum Event Interval
7 Seconds
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, 1 0 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
Temperature
Chart Speed
Range
12 Hours
24 Hours
7 Days
31 Days
-20°F to +120°F
V20120F12
V20120F24
V20120F7D
V20120F31
-20°F to +50°F
V2050F12
V2050F24
V2050F7
V2050F31
+40°F to +110°F
V40110F12
V40110F24
V40110F7
V40110F31
-30°C to +50°C
V3050C12
V3050C24
V3050C7
V3050C31
-30°C to +10°C
V3010C12
V3010C24
V3010C7
V3010C31
+5°C to +45°C
V545C12
V545C24
V545C7
V545C31
CHART TEMPERATURE RANGES
*For 1.5 Hour, 3 Hour or 6 Hour readings, use 12 Hour charts.
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CR4 SERIES RECORDER LIMITED WARRANTY
Sealed Unit Parts Co., Inc. hereby warrants that it will repair or replace, at its
option, 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 of 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: (732) 223-6644
FAX: (732) 223-1617
LIABILITY DISCLAIMER STATEMENT
Sealed Unit Parts Co., Inc. (hereafter known as Supco) makes no warranty, representation, 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.
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 use Supco products for any such
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.
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