Nova-Tech 4527 User Manual

TRACEABLE MEMORY MONITORING

THERMOMETER WITH ALARM INSTRUCTIONS

SPECIFICATIONS

Range: –58 to 158.0 °F / –50 to 70.0 °C
Resolution: 1°
Accuracy: ±1°C
Sampling Rate: Fast 10 seconds or Normal 60 seconds (user selectable)
Features: LCD digital thermometer, internal or external display with

Battery: AA Alkaline

PROBES
4048 Model Probe: A detachable probe sensor and ten feet of cable are sup-

plied with the unit.
A wire probe holder is provided for permanently mounting the probe. To
mount the probe, place a nail or screw through the hole of the wireholder and
secure the holder to a surface.
4127 Model Probe: Probe is sealed in a miniature bottle (1 x 2-1/2 inches) filled
with a nontoxic glycol. Solution is GRAS (generally recognized as safe) by the
FDA (Food and Drug Administration). It eliminates concerns about incidental
contact with food or drinking water. The solution filled bottle simulates the tem­perature of other stored liquids.
Velcro® and magnetic strip are supplied to mount the bottle to the inside of
a refrigerator/ freezer and to mount the display unit to the outside. Micro-cable
permits refrigerator doors to close on it.
NOTE: Plug probe sensor into the jack on the side of the unit. Press RESET
button once whenever probe sensor is removed or inserted. Updated ambient
or probe temperatures will be displayed.
With probe sensor attached the unit simultaneously displays current probe
temperature and probe minimum/maximum temperatures.
With the probe sensor removed the unit simultaneously displays current
ambient temperature and ambient minimum/maximum temperatures.

RESETTING THE UNIT

Use a pointed object to push the RESET button on the back of the unit. It is
necessary to reset the unit whenever a change is made to °C/°F temperature ,
FAST/NORMAL sampling rate, or the probe sensor is plugged in or removed.
NOTE: HI/LO temperature alarm settings and MIN/MAX memories will be
cleared after resetting the unit.

OPERATION MODES

The unit has two operating modes: NORMAL DISPLAY MODE and ALARM
DISPLAY MODE. To change from one mode to another press the MODE button
once.
NORMAL DISPLAY MODE - is indicated by the display of current temperature
and the MIN (minimum) and MAX (maximum) temperatures. These tempera­tures relate to external (probe) temperature if the probe is plugged in and to
internal (ambient) temperature if the sensor probe is removed.
ALARM DISPLAY MODE - is indicated by the display of current temperature
and the HI and LO alarm settings. These temperatures relate to external (probe)
temperature if the probe is plugged in and to internal (ambient) temperature if
the sensor probe is removed.

RESETTING MIN/MAX MEMORIES

There are two ways to reset the memories:

1. To reset both minimum and maximum memories - press MEMORY CLEAR
button.

2. To reset individual minimum and maximum memories - press either the MIN
or MAX button (on back of unit) once to reset the respective memory. The
other memory will remain unaffected.

maximum/minimum memory display and high/low alarm

NOTE: You must be in Normal Display Mode to reset the memories.

DISPLAYING °F OR °C

To display the temperature readings in Fahrenheit (°F) or Celsius (°C) slide
the switch on the back of the unit to °F or °C.

NOTE: The unit must be reset after changing the temperature unit.

SELECTING THE SAMPLING RATE

To select normal sampling rate (60 seconds) or fast sampling rate (10 sec­onds) slide the switch on back of unit to NORMAL or FAST.
NOTE: The unit must be reset after changing the sampling rate. Using the
NORMAL sampling rate will extend battery life.

SETTING THE HIGH/LOW ALARM

1. Press the MODE button until unit is in the ALARM DISPLAY MODE indi­cated by the display of current temperature and HI and LO alarm settings.

2. To set the HIGH temperature alarm limit press the HI button, to advance
the display in 1o increments, until the desired high temperature is dis­played. Press and hold the HI button to rapidly advance the display in 5°
increments.

3. To set the LOW temperature alarm limit press the LO button, to advance
the display in 1o increments, until the desired low temperature is dis­played. Press and hold the LO button to rapidly advance the display in 5°
increments.

ALARM

The unit will sound the alarm in both NORMAL DISPLAY MODE and ALARM
DISPLAY MODE.
Slide the ALARM ON/OFF switch to ON. When the current temperature
display rises above the HI set point, or falls below the LO set point, the alarm
will sound for 1 minute and issue a 3 second repeater beep every minute
thereafter, for up to 12 hours. The alarm will continue to sound even if the
current temperature display returns to an “in range” condition.
To temporarily silence the alarm press either the HI or LO button the
back of the unit. The unit is still active and the alarm will sound again if the
temperature goes out of range. To permanently silence the alarm slide the
ALARM ON/OFF switch to OFF position.

BENCH STAND

The unit is supplied with a bench stand that is a part of the battery cover. To
use the bench stand, locate the small rectangular opening at the bottom of
the unit. Place your fingernail into the opening and flip the stand up. To close
the stand, simply snap it shut.

WALL MOUNTING THE UNIT

Set a screw into the wall at the desired location. Do not set the screw flush
to the wall, the head of the screw will need to slip into the receptacle on the
back of the unit. Once the screw has been properly set, hang the unit in
place by sliding the receptacle on the back of the unit over the head of
the screw.

ALL OPERATIONAL DIFFICULTIES

If this thermometer does not function properly for any reason, please replace
the battery with a new high-quality battery (see “Battery Replacement” sec­tion). Low battery power can occasionally cause any number of “apparent”
operational difficulties. Replacing the battery with a new fresh battery will
solve most difficulties. If the voltage of the battery becomes low oC and oF
symbols will flash.

BATTERY REPLACEMENT

Erratic readings, a faint display, or no display are all indications that the
battery must be replaced. Slide the battery cover toward the end of the unit.
Remove the exhausted battery and replace with a AA alkaline battery (Cat.
No. 1111). Replace the battery cover.

WARRANTY, SERVICE, or RECALIBRATION

For warranty, service or recalibration contact:

4455 Rex Road • Friendswood, Texas 77546 USA

Ph. 281-482-1714 Fax [phone]

E-mail [e-mail] • www.control3.com

Control Company is ISO 9001 Quality-Certified by DNV and ISO 17025 accredited as a Calibration Laboratory by A2LA.

Cat. No. 4048/4127 Traceable® Memory Thermometer with Alarm Instructions 92-4048-00

Traceable® is a registered trademark of Control Company

CONTROL COMPANY

© 2007 Control Company

Rev. 2 122707