User Guide

32
Remove the instrument from the packing mate-
rial and examine it carefully to make sure that no
damage has occurred during shipment. If no-
ticeable damage is found, notify your Dealer.
Note: Save all packing material until the instru-
ment has been observed to function cor-
rectly because all defective items must
be returned to the Dealer in their original
packing.
PRELIMINARY EXAMINATION
These microprocessor-based thermometers
allow temperature measurements using K-type
thermocouple probes. The non-linearity of the
temperature probe is linearized by the built-in
microcomputer. It also permits accurate com-
pensation for drifts in the measurement circuit
and the reference junction.
Standard features include:
• display and clearing of maximum/minimum
temperature measurement
• reading hold
• memory entry (HI 9053 and HI 9055 only)
• low battery detection
Additional functions for HI 9053 and HI 9055
include:
• sound alarm with preset operating range
• display of constantly updated temperature
differential between stored and measured
values.
• selectable measurement range/resolution.
These functions are easily accessible through
the splash-proof membrane keypad.
Self-explanatory symbols are used to remind
the user of the operating mode or condition.
GENERAL DESCRIPTION
Dear Customer,
Thank you for choosing a Hanna Instruments
Product.
Please read this instruction manual carefully
before using the instrument.
This manual will provide you with all the neces-
sary information for the correct use of the
instrument, as well as a precise idea of its
versatility in a wide range of applications.
These instruments are in compliance with
directives EN 50081-1 and EN 50082-1.
Preliminary Examination ............................ 1
General Description .................................... 1
Functional Description of LCD .................... 2
Functional Description of HI 9043 & HI 9044 ..... 3
Functional Description of HI 9053 ............... 4
Functional Description of HI 9055 ............... 5
Specifications ............................................ 6
Operational Guide ...................................... 7
Functional Operation Guide ...................... 12
Display Error Codes ................................. 14
Calibration ................................................ 14
Battery Replacement ............................... 15
Accessories ............................................. 16
Warranty .................................................. 20
CE Declaration of Conformity ................... 21
TABLE OF CONTENTS
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Company since 1992