Ametek Jofra ASC-400 Manuel d'ajustement - Page 5
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2.0
Initiating Communication
Before you can initiate the Communication needed for a readjustment, you have to install a
USB-driver. You can find the USB-driver on the memory stick which was included together
with the instrument. The driver will be located in the subfolder: utilities.
To install the driver you have to connect the instrument to your computer and then turn on
the calibrator. After a while the computer will ask for a driver and you have to locate the
driver on the USB-stick in the subfolder utilities.
When the driver is installed you will get a virtual COMPORT named AMETEK Advanced
Signal Calibrator. Start up your preferred terminal program and locate this Virtual
COMPORT in the terminal setup. Now you are ready to recalibrate the instrument.
As long as the calibrator has been within at a stable temperature within the range of 18°C
to 28°C for an hour or more, the calibrator only needs 5 minutes to warm up. If
temperature conditions were previously below 10°C or higher then 40°C, then the unit
must be allowed to stabilize for a minimum of 3 hours prior to adjustment. To initiate the
calibration mode use the terminal to send the CAL_START command. The following will be
displayed on the terminal.
Calibration is password protected Enter Password:
The password is 900. Enter the password correctly and the following will be displayed on the
terminal.
Calibration Menu
0: Exit
1: ISO Current Input (mA)
2: ISO Voltage Input (volts)
3: Current Input (mA)
4: Current Output (mA)
5: Voltage Input (volts)
6: Voltage Output (volts)
7: Low Resistance Source (ohms)
8: High Resistance Source (ohms)
9: Resistance Measure (ohms)
10: Thermocouple Output (mV)
11: Thermocouple Input (mV)
12: Thermocouple CJC
13: Barometric Pressure
14: System Calibration Date
15: Barometric Pressure Calibration Date
Enter Selection:
128897 02
2014-12-05
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