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Medusa 510/511 Series Iss.11 – 07/12
The desired sensor type is easily set, press the Scroll key until the upper display indicates,
inPt
On the upper display. The lower display will show the current set sensor type,
J.tc
J thermocouple
K.tc
K thermocouple
L.tc
L thermocouple
r.tc
R thermocouple (Pt/Pt13%Rh)
b.tc
B thermocouple (Pt30%Rh/Pt6%Rh)
n.tc
N thermocouple
t.tc
T thermocouple
S.tc
S thermocouple (Pt/Pt10%Rh)
PL.2
PL 2 thermocouple
rtd
100Ω platinum resistance thermometer.
T012
E thermocouple
Again the value can be modified with the UP and DOWN keys.
Enabling / Disabling Custom Calibration
Custom calibration allows the indicator to be programmed to suit a particular temperature sensor. This allows the
indicator to automatically show the true temperature, without having to manually apply a correction.
When the Custom or User Calibration is active the indicator will show the REM beacon lit continuously. The use of
User calibration can make a significant difference to the accuracy of the instrument, and this REM beacon provides a
clear and continuous indication of the calibration status. Isotech will configure and set user calibration when the Dry
Block is ordered with a temperature sensor.
To alter the calibration status press the Scroll key until the upper display shows,
CAL
The lower display will indicate either,
USEr
for user calibration
Or
FACt
for factory calibration of the indicator, i.e. User Cal OFF
Use the UP and DOWN keys to toggle between the two values.
When calibrating an unknown sensor against a calibrated probe it may be necessary to switch the calibration off for
the unknown, and on for the calibrated probe.
Instrument Address
Like the controller, the indicator has a configurable "address" which is used for PC communications. Each instrument
has an address; this allows several instruments to be connected in parallel on the same communications bus. The
default value is 2 (The controller defaults to 1). This address would only need to be changed if more than one Dry
Block is connected to the same PC port.
