Orbit Controls OC 7040A, Руководство пользователя

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6 SERVICE MENU - HtESt
The Service Menu
HtESt permits fast check of the instrument’s performance and offers the software
calibration via the keyboard. To enter the Service menu, keep the key MENU pressed while the
instrument is switched-on. Release the key when the display shows HtESt . The service menu steps are
incremented forward with the key MENU , decremented backward with SET .
In the service menu the digit segments are tested first. After the HCF value can be entered (see bellow).
Than the signal channel can be calibrated. The set point relays and the display LEDs are activated. At
the end the analog outputs are generated.
Segments all segments are activated
HCF.128 HCF parameter defines the range of the menu. The menu without options Analog Output,
Set Points and RS data ports is determined with HCF = 128. Each option is activated in
the menu with binary value added to the HCF 128:
1 SP1
2 SP2
4 SP3
8 SP4
16 Analog
output
32 Baud rate
64 Address of the data port
Combinations define the menu range:
HCF.144 Menu (128) and Analog Output (16).
HCF.240 Menu (128), Analog Output (16), Baud rate (32) and Address (64).
AdC ADC internal DC value of the converter.
ATTENTION! The input signal has to be set to ZERO before this Step is entered!
1.25XXX Apply the zero signal value. The display shows the internal voltage reference 1.25V.
The Zero Value will be calibrated when the key DOWN is pressed. The display shows
Ac LO . Press the key ACK and keep it pressed until the display shows EE StO .
The Zero Signal Value has been calibrated.
2.2XXXX The Maximum Signal Value will be calibrated when the full range signal is applied and the
key UP is pressed. The display shows AC HI . Press the key ACK and keep it pressed
until the display shows EE StO .
The maximum signal value has been calibrated.
rES The Display shortly shows rES and switches into the measuring mode. The display
corresponds to the SEt HI programmed value in the main menu.
COL. X Correction of the cold junction temperature.
SP1 Set Point 1 and the Relays 1 are activated.
SP2 Set Point 2 and the Relays 2 are activated.
SP3 Set Point 3 and the Relays 3 are activated.
SP4 Set Point 4 and the Relays 4 are activated.
An - 10 Analog Output -10V and 0/4 mA are generated (0 or 4mA selectable).
An - 5 Analog Output -5V and 5/8 mA are generated.
An 0 Analog Output 0V and 10/12 mA are generated.
An 5 Analog Output 5V and 15/16 mA are generated.
An 10 Analog Output 10V and 20 mA are generated.
StArt Measuring Mode
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