ThermoWorks 231-279 PRO-SURFACE THERMAPEN - Manual (Page 2)

INSTRUMENT OPERATION - The instrument
is switched on by unfolding the probe until the
display shows the temperature. The unit is turned
off by folding the probe back into the side of
the unit. The probe should not be rotated more
than 180 degrees as damage will occur. It is
recommended to store the probe, in the closed
position, when not in use.
Apply the tip of the probe to the substance, surface or area to be measured.
The probe should be allowed adequate time to stabilize to the temperature of
the item to be measured.
INSTRUMENT CONFIGURATION
This instrument has four user
selectable slide switches (switch
bank), adjustable with a paperclip,
and a single push button ‘Trim
Adjust’ which is located under the
battery cover.
Switch 1 - Display Units - Changes
display units between °F (factory
default) and °C. To change to °C push the switch toward the batteries.
Switch 2 - Resolution - To change the resolution from 0.1°F (factory default)
to 1°F push the switch away from the batteries.
Switch 3 - Auto-off - To disable the auto-off (factory default – 10
minutes) push the switch away from the batteries.
Switch 4 - Reading Trim - For normal use, we do not recommend using the
‘Trim Adjust’. For further details visit www.thermoworks.com.
INSTRUMENT CLEANING - Clean the instrument regularly with an anti-
microbial probe wipe or spray cleaner on a paper towel to
avoid potential food-borne bacteria growth.
BATTERY REPLACEMENT A battery symbol
indicates
that the batteries will need replacing. The instrument
continues to measure accurately but we recommend that
the batteries be changed as soon as possible. To replace
the batteries, remove the battery cover using a coin (U.S. nickel works best).
Remove the batteries by pulling the battery retaining clip back while holding
the unit upside down. Replace both batteries, positive side up, replace cover.
ERROR MESSAGES - ‘Lo’ will be displayed if you are measuring below the
instrument’s range. ‘Hi’ will be displayed if you are measuring above the
instrument’s range. ‘Err’ will be displayed if the probe develops a fault. If the
error message remains, contact our service department for further assistance.
EMC/RFI - Instrument performance may be affected if operated within a
high frequency radio field, such as near a mobile phone, or if subjected to an
electrostatic shock.
GUARANTEE - This instrument carries a one-year warranty against defects in
either components or workmanship. During this period, products that prove
to be defective will, at the discretion of ThermoWorks, be either repaired or
replaced without charge. This warranty does not apply to probes, where a
six-month period is offered. The product warranty does not cover damage
caused by fair wear and tear, abnormal storage conditions, incorrect use,
accidental misuse, abuse, neglect, misapplication or modification. Full details
of liability are available within ThermoWorks’ Terms & Conditions of Sale at
www.thermoworks.com. In line with our policy of continuous development, we
reserve the right to amend our product specification without prior notice.
Recommendations for improving surface temperature measurements:
1. Surface readings may be affected by airflow, sensor contact with the
surface being measured, the surface type, surface inconsistencies, and
measuring area cleanliness.
2. Make sure that the flat bottom area of the probe tip maintains constant and
flat contact with the surface being measured.
3. Apply firm pressure.Allow sufficient time for the reading to stabilize.
4. Clean surface before taking measurements.
5. Readings may be enhanced with a small amount of cooking oil to establish
better thermal contact with the sensing area.
6. Surface temperatures may vary along hot surfaces. It is recommended to
test in multiple locations.
CR2032
3V
+
1 2
3 4
ON
1 2 3 4
ON
Switch bank
CR2032 battery
Trim adjust
Switch
(factory default shown) CR2032
3V
+
1 2 3 4
ON