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PRESYS
Instruments
In this case, the dry block is only used as a heat generator, not as a standard
temperature calibrator. The user can use the fact that the dry block stability value is
much lower than its accuracy value. So, placing the superthermometer sensor and the
thermo-element under calibration in a two-hole-insert, it is possible to compare both
temperature measurements.
3.2 - Recommendantions to Other types of Insert
When the user uses a different type of insert, other than the one used to adjust the
dry block, for example the cup like insert fulfilled with tiny steel balls, the accuracy from the
manual is no longer valid, since the thermal contact is different in relation to that insert.
However, another control sensor adjustment can be performed to the new insert. Do
that using an external probe with high accuracy, placed in the new insert and follow the
steps described in item 6.2 - Probe Calibration.
This new readjustment of the calibrator indication overwrites the factory calibration
and it remains even after turning off the dry block.
Should you want the factory calibration back again, activate the option RESTORE
from menu calibration / probe.
4.0 - Safety Instructions
• If the calibrator is turned on, do not leave the room without an identification or
warning about the high temperature hazard.
• Before turning the calibrator off, return the block temperature to values close
to the ambient temperature.
• Never remove the insert from the dry block or the thermo-elements from the
insert, while they are in temperatures far from the ambient. Wait until they
reach the ambient temperature so that the heterogeneous cooling of the parts
do not jam each other.
5.0 - Calibrator Warning Messages
Warning
RAM ERROR READ
MANUAL
EEPROM ERROR
READ MANUAL
LOW BATTERY
UNDER / OVER
????.??ºC
Page 18
Meaning
Problem in RAM memory
Problem in
EEPROM memory
Level of battery voltage
is low
Input signal out of
specifications or
scaling range
Input sensor is open
TE -25N / TE-35N / TE-50N
Procedure
Turn the calibrator off
and on. If the error
persists, send the
instrument to the factory
Same as the previous
item
Check the TE-
25N/TE-35N/TE-50N
calibrator power
supply
See item 1.1.1 on
Input Specifications
Check input connections
and sensor
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