PRESYS
Instruments
T-650PH
Page 5
2 - T-650PH Calibrators Operation
The T-650PH calibrators keep the block temperature controlled and allow the
reading of a thermo-element connected to its terminals. It is possible to verify the
thermocouple, RTDs, temperature transmitters etc together with the block temperature
value and temperature set point.
The calibrators have 3 operating modes:
Manual
Mode
to select the block temperature straight from the keypad.
Programmable Mode
: 6 different programs with 11 temperature setpoint values. The
block temperature is selected among the programmed values by the keys
and
.
The
Programmable Mode with Timer
scans automatically the temperature setpoints.
Automatic
Mode
to calibrate thermo-elements. The thermo-elements calibration is
performed in an automatic way by the calibrator: the schedule and the calibration
results, besides the thermo-element readings are stored in the calibrator memory.
When powered on (
ON/OFF
key), the calibrator goes through a self-test routine
and shows the last calibration date and the value of the battery voltage. The battery
voltage is constantly monitored and the low battery warning is provided. After the self-test
is completed, the display shows the starting menu.
IN
EXEC
CONF
CAL
COM
The initial set point is 25.00 °C:
By means of keys
,
,
and
, choose the menu options and press
ENTER
.
IN
: selection of the calibrator signal input. Choose among mV, ohms,
thermocouples, thermoresistances, mA, switch or none. More details in item
2.1 - Menu IN
.
EXEC
: The calibrator enters the manual or programmable operating mode.
CONF
: Accesses the calibrator configuration options. More details in item
2.2 - Menu CONF
.
CAL
: This option accesses the T-650PH calibrator adjust functions, protected by
password. More details in section
7 - Calibration
.
COM
: Accesses the automatic calibration parameters. It is possible to perform a
calibration without a computer or using it (via ISOPLAN software). More details in item
2.5 - Automatic Operating Mode
.
presys
