ThermoWorks 231-022 THERMA DIFFERENTIAL THERMOCOUPLE METER - Manual

serial no. ________________________________
calibrated by ______________date ___________
This instrument has been checked or calibrated
against reference instrument(s) calibrated by a
UKAS Accredited Calibration Laboratory.
Traceable to NIST.
INSTRUMENT RECORD CARD
32°F 212°F 1832 °F
model order code
Therma Differential 231-022
AquaTemp 231-041
547-170/28.03.12
P-12-006/7-02-a
Therma Differential
AquaTemp
Thermistor
Thermocouple
INSTRUMENT OPERATION - Connect probes
via the socket(s) located at the top of the instrument.
(The Therma Differential uses a miniature type K
thermocouple connector and the AquaTemp uses
a 6 pin Lumberg screw locking type connector).
Switch the instrument on and apply the tip of the
probe to the substance or medium to be measured.
The instrument reading may take a few seconds
to stabilize, depending on the nature of the
measurement and sensitivity of the probe.
HOLD - Press the HOLD button to stop
measurements, press again to continue measuring.
AUTO-OFF - The unit will switch off automatically
after 10 minutes. To disable auto-off press the
HOLD button while switching on the instrument
(this is reset when the instrument is switched off).
OPEN CIRCUIT/FAULTY PROBE - If the
probe has developed an 'Open Circuit' fault the
instrument will display 'Err'.
SENSORS - The Therma Differential should only be
used with type K (Nickel Chromium/Nickel
Aluminium) thermocouple plugs (to BS EN
50212).
The AquaTemp can be used with either an
interchangeable thermistor probe or a type T
thermocouple probe fitted with 6 pin Lumberg
screw locking connectors. This instrument is
designed to be compatible with ThermoWorks’
probes.
BATTERY REPLACEMENT - The instrument
will display a low battery symbol to warn that the
batteries will need changing soon. The instrument
continues to measure accurately but after further
usage the instrument will display 'flat bat' and
shutdown. Replace the three AAA batteries located
under the rear case half that is held in place by
six screws. Check the seal for damage and
carefully replace the rear case half and tighten
the screws.
ThermoWorks, Inc.
1762 W. 20 S. #100, Lindon, UT 84042
tel: 1-801-756-7705
e-mail: [email protected]
www.thermoworks.com