VWR 12777-838 User manual

VWR®Thermometer
INSTRUCTION MANUAL
North American Catalog Numbers:
12777-838, 89094-782, 89094-768, 89094-770
European Catalogue Numbers:
620-1582, 620-1583, 620-1584, 620-1585
Version: 1
Issued: 15th May 2014
VWR Collection Manual ver 3, rel 5 30.10.2013

Legal Address of Manufacturer
United States Europe
VWR International VWR International bvba
Radnor Corporate Center Researchpark Haasrode 2020
Building One, Suite 200 Geldenaaksebaan 464
100 Matsonford Road, P.O. Box 6660 B-3001 Leuven
Radnor, PA 19087 + 32 16 385011
800-932-5000 http://be.vwr.com
http://www.vwr.com
Country of origin – China
Product Specifications
Range: –50 to 70°C (–58 to 158°F)
Resolution: 0.1°
Cat. No Accuracy (°C)
Probe Type Probe Length
Cable Length
VWRI620-1582
±0.5 Bottle 63.5 mm 3 m
VWRI620-1583
±0.5 Sensor 19 mm 3 m
VWRI620-1584
±1.0
Bottle
63.5 mm
3 m
VWRI620-1585 ±1.0 Sensor 19 mm 3 m
Operation - English
TEMPERATURE DISPLAY MODES
Ambient Temperature Display Mode (IN): Indicated by “IN” appearing on the display, displays the current
ambient temperature and either the ambient temperature memory (MIN/MAX) or the ambient temperature
alarm limits (LO/HI).
Probe Temperature Display Mode (OUT):
Indicated by “OUT” appearing on the display, displays the current probe temperature and either the probe
temperature memory (MIN/MAX) or the probe temperature alarm limits (LO/HI). To change between ambient
(IN) and probe (OUT) temperature display modes, press the IN/OUT button located on the back of the unit.
To change between displaying the memory (MIN/MAX) and the alarm limits (HI/LO), press the MODE button.
DISPLAYING °F OR °C
To display the temperature readings in Fahrenheit or Celsius, press the °C/°F button located on the back of
the unit.
VWR Collection Manual ver 3, rel 5 30.10.2013

MINIMUM AND MAXIMUM MEMORY
There are four points that are automatically recorded into memory:
•Minimum (MIN) Ambient Temperature Achieved
•Maximum (MAX) Ambient Temperature Achieved
•Minimum (MIN) Probe Temperature Achieved
•Maximum (MAX) Probe Temperature Achieved
All four memories are independent of each other.
Minimum and maximum temperature memories are NOT programmable.
The minimum temperature recorded into memory is the minimum temperature achieved since the last time
the memory was cleared. The maximum temperature recorded into memory is the maximum temperature
achieved since the last time the memory was cleared. The minimum and maximum temperature memories
are maintained over the period since the memory was cleared.
Minimum and maximum memories are recorded for both ambient and probe temperatures regardless of the
display mode.
CLEARING THE PROBE (OUT) TEMPERATURE MEMORY
1. Select the Probe Temperature Display Mode by pressing the IN/OUT button located on the back of the
unit until “OUT” appears on the display.
2. Press the MODE button until “MIN” and “MAX” appears on the display.
3. Press the MIN-RESET button to clear the minimum temperature memory.
4. Press the MAX-RESET button to clear the maximum temperature memory.
CLEARING THE AMBIENT (IN) TEMPERATURE MEMORY
1. Select the Ambient Temperature Display Mode by pressing the IN/OUT button located on the back of
the unit until “IN” appears on the display.
2. Press the MODE button until “MIN” and “MAX” appears on the display.
3. Press the MIN-RESET button to clear the minimum temperature memory.
4. Press the MAX-RESET button to clear the maximum temperature memory.
ALARMS
Both ambient (IN) and probe (OUT) temperature alarm limits may be set in 1° increments.
With the alarm enabled (), the unit will sound an alarm when the temperature being displayed is outside
the alarm limits that have been set for that display mode (equal to or lower than the low alarm set point, or
equal to or greater than the high alarm set point). Example: If the unit is displaying the ambient temperature
(IN) and the probe temperature (OUT) is outside the probe temperature alarm limits, no alarm will sound.
SETTING PROBE (OUT) TEMPERATURE ALARM LIMITS
1. Select the Probe Temperature Display Mode by pressing the IN/OUT button located on the back of the
unit until “OUT” appears on the display.
2. Press MODE button until “LO” and “HI” appears.
3. To set the low temperature alarm limit (LO), press the LO ALM SET button to advance the display until
the desired low temperature is displayed.
VWR Collection Manual ver 3, rel 5 30.10.2013

4. To set the high temperature alarm limit (HI), press the HI ALM SET button to advance the display until
the desired high temperature is displayed.
SETTING AMBIENT (IN) TEMPERATURE ALARM LIMITS
1. Select the Ambient Temperature Display Mode by pressing the IN/OUT button located on the back of
the unit until “IN” appears on the display.
2. Press MODE button until “LO” and “HI” appears.
3. To set the low temperature alarm limit (LO), press the LO ALM SET button to advance the display until
the desired low temperature is displayed.
4. To set the high temperature alarm limit (HI), press the HI ALM SET button to advance the display until
the desired high temperature is displayed.
ENABLE/DISABLE ALARMS
To enable the alarm to sound when the temperature being displayed is outside the alarm limits, press the 
button located on the back of the unit until “” appears on the display. Each successive press of the 
button will enable () or disable the alarm.
ALARM SOUNDING
With the alarm enabled (), the unit will sound an alarm when the temperature being displayed is outside
the alarm limits that have been set for that display mode (equal to or lower than the low alarm set point, or
equal to or greater than the high alarm set point). If the alarm is sounding based on the low alarm limit, “LO”
will flash on the display. If the alarm is sounding based on the high alarm limit, “HI” will flash on the display.
The unit will continue to alarm and flash the corresponding “LO” or “HI” until the temperature being displayed
is within the alarm limits. Once the temperature being displayed is within the alarm limits, the alarm will stop
sounding and the corresponding “LO” or “HI” will no longer flash.
To silence an alarm manually, press any button. When manually silenced, the corresponding “LO” or “HI” will
continue to flash on the display until the temperature is within the alarm limits. When enabled (), the alarm
will only sound if the temperature being displayed is outside the alarm limits that have been set for that
display mode (IN or OUT). Example: If the unit is displaying ambient temperature (IN) and the probe
temperature (OUT) is outside the probe temperature alarm limits, no alarm will sound.
RESET BUTTON
The RESET button located on the back of the unit may be used to simultaneously reset the memory and
alarm limits for both the ambient (IN) and probe (OUT) sensor.
To reset the unit, use a pointed object to press the RESET button.
When the reset button in pressed, the following will occur:
• The display will show all segments for approximately 5 seconds.
• The ambient (IN) and probe (OUT) minimum/maximum memory will be cleared.
• The ambient (IN) and probe (OUT) alarm limits will be returned to the default value of 10°C (LO) and
30°C (HI).
• The unit will display the ambient (IN) temperature in °C.
VWR Collection Manual ver 3, rel 5 30.10.2013

ON/OFF BUTTON
The ON/OFF button located on the back of the unit may be used to turn the unit off when the thermometer is
not being used. The minimum/maximum memory and alarm limits are not cleared when the unit is turned off.
To turn the unit off, press the ON/OFF button. Each successive press of the ON/OFF button will turn the unit
on or off.
No alarms will sound and no minimum/maximum memory will be recorded when the unit is off.
TROUBLESHOOTING
If this unit does not function properly for any reason, replace the battery with a new high-quality battery (see
the “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.
TRACEABLE® CERTIFICATE
To assure accuracy, the unit is supplied with an individually serial-numbered Traceable® Certificate provided
from an ISO/IEC 17025 calibration laboratory accredited by A2LA. The recommended recalibration date is
noted on the certificate that is included with the product. Annual recalibrations should occur thereafter.
BATTERY REPLACEMENT
Erratic readings, a faint display, no display, or a battery symbol appearing on the display are all indications
that the battery must be replaced. Open the battery compartment by depressing the tab located at the top of
the battery cover and lifting it out. The battery cover is hinged at the bottom so that the battery compartment
may be opened without completely removing the battery cover. Remove the exhausted battery and replace
with a AAA alkaline battery. Make certain to insert the new battery with the proper polarity as indicated in the
illustration in the battery compartment. Close the battery cover.
Replacing the battery has the same effect as pressing the RESET button. (See the “RESET BUTTON”
section.)
Technical service/Web Resources
Visit the VWR’s website at www.vwr.com for:
• Complete technical service contact information
• Access to VWR’s Online Catalogue, and information about accessories and related products
• Additional product information and special offers
Contact us For information or technical assistance contact your local VWR representative or visit.
www.vwr.com.
Warranty
VWR International warrants that this product will be free from defects in material and workmanship for a
period of two (2) years from manufacturing date. If a defect is present, VWR will, at its option, repair,
replace, or refund the purchase price of this product at no charge to you, provided it is returned during the
warranty period. This warranty does not apply if the product has been damaged by accident, abuse, misuse,
or misapplication, or from ordinary wear and tear.
For your protection, items being returned must be insured against possible damage or loss. This warranty
shall be limited to the replacement of defective products. IT IS EXPRESSLYAGREED THAT THIS
VWR Collection Manual ver 3, rel 5 30.10.2013