Calibrating The Pressure Sensor; Connecting To A Pc - Heidolph Hei-VAP Precision Manuel D'utilisation

EN
Operation of the Hei-VAP Precision
Pressure sensor
58

6.15 Calibrating the pressure sensor

The pressure sensor of the vacuum box can be calibrated.
Vacuum gauge is available.
The unit is connected.
1. Interconnect the vacuum gauge near the condenser (for example, with a Y-piece).
2. Switch on the vacuum pump.
3. Change to the setup menu and select calibration p-sensor.
4. Confirm with "Yes".
5. Enter the atmospheric pressure calculated by an external pressure gauge and con-
firm by pressing the Hei-GUIDE.
6. The vacuum control now automatically reduces the pressure in the system.
Please wait until the pressure value is stable.
7. Enter the displayed pressure calculated by an external pressure gauge and confirm
by pressing the Hei-GUIDE.
The calibration is completed.

6.16 Connecting to a PC

The vacuum box can be connected to a PC via USB.
1. Connect the vacuum box to a PC using an USB cable.
2. Configure HyperTerminal on the PC.
3. Interface settings:
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Bits per secund: 115200
−
Data bits: 8
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Parity: none
−
Stop bits: 1
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Stream control: none
4. The protocol values are displayed in HyperTerminal:
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For example: 20;31.4;25.3;976
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Rotation = „20"
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HB-Temperature = „31.4"
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Ext. Sensor-Temperature = „25.3"
−
Vacuum = „976"
Hei-VAP Precision