Isotech PEGASUS PLUS 1200 B, Handbook

Page: 19 / 50

PEGASUS
PLUS
1200
HANDBOOK
ISSUE 5 - 01/05
Page 19 of 50
The setpoint ramp rate will also be seen when the unit is cooling although it does not increase
the cooling time.
Instrument Address
The controller has a configurable "address" wh i ch is used for PC communications. Each
instrument has an address, this all o ws se veral instruments to be connected in parallel on the
same communications bus. The default value is 1. This address would only need to be changed
if more than one Dry Block is connected to the same PC port.
To check the Address value press the scroll key until the top display indicates,
Addr
The lower display will show the current value that can be modified with the UP and DOWN keys.
Monitoring the Indicator Status
A row of beacons indicate the controllers status as follows,
OP1
Heat Output
OP2 Cool Output (Only for models which operate below 0°C)
REM
This beacon indicates activity on the PC interface
Units
Momentary pressing the Scroll key will show the controller units °C or °F.
The Temperature Indicator (Site (S) Models Only)
The site models include an electronic temperature indicator. The indicator can be configured for
the desired sensor type, and for custom calibration data. The custom calibration data can be set
ON or OFF.
Setting the Input Type
A 100 Ohm resistance thermometer can be connected to the PRT Connector or a thermocouple
may be connected to the miniature TC Connector.
Ensure that only a PRT or a TC is connected at any one time. If a PRT and TC are
connected simultaneously the indicator will read in error.