VWR Collection Manual ver 3, rel 5 30.10.2013
Display Modes
The unit has two display 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.
NOTE:
You must be in Normal Display Mode to reset the memories.
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/Lo 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 until the
desired high temperature is displayed. Press and hold the HI button to rapidly advance the display.
3.
To set the low temperature alarm limit press the LO button, to advance the display until the
desired low temperature is displayed. Press and hold the LO button to rapidly advance the display.
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
