Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 58)

________________________________________________________________________________________________________________
51
9.4.4 Thermal Calculator
The built‐in utility Thermal Calculator can help you convert temperature vs. resistance (RTDs), and temperature vs.
millivolts (thermocouples).
Select Thermal Calculator from the Utilities list box and press EnterorSelect, then the Thermal Calculator page will
appear.
On this page, you can choose RTD or TC (thermocouples) from the Thermo Type drop down list.
The sensor type drop down list includes all the available sensors.For RTDs, besides all the sensors in Table 5‐4, the
custom RTDs are also available.
You can also select the temperature unit for the conversion.
When you enter a temperature value, the resistance or millivolts will be calculated automatically. The opposite process
is also the same.
Note:About the temperature range and available sensors types, please refer to Table 5‐3 and Table 5‐4.
9.4.5 Pressure Leak Test (when pressure module is connected)
The calibrator supports measure and source pressure using the Additel series Intelligent Digital Pressure Modules.
To start the Pressure Leak Test, you must have a pressure module correctly connected.
When the pressure module is on‐line, select Pressure Leak Test from the Utilities list box and pressEnter or the Select
andthe Leak Test page will appear.
The Pressure group box gives the up‐to‐date pressure ofthe pressure module. The pressure unit is decided by
measurement or source in Basic Mode.
Test Time: The period of the leak test in hours: minutes: seconds (hh:mm:ss).