Omega CL526 Manuale Utente

35

The  CL526 portable  calibrator is equipped with a digital interface. The interface circuit is essentially based on the serial
communication interface subsystem (SCI) on the chip of the microprocessor. The output voltage levels are TTL at 0 to +5
V.
An optional adaptor to convert the voltage level from 0 to +5V to RS232 levels can be supplied on request. This adaptor
is  required to interface the CL526 with a Personal Computer.

•

  To enter the procedure, press  the <ENTER> + <ON> keys. The display will indicate:

CAL?  65388   N=0  

•

  To enter the program mode press the <2> key;

Baud Rate   19200  

The numerical value of the “baud rate” can be one of the following : 19200, 9600, 4800, 2400, 1200, 600, 300

•

  Select, with the <▲

▲

▲

▲>

 or <▼

▼

▼

▼>

 key the “baud rate” used by the receiver unit and transmission lines.

•

 Press 

the 

 

 key to memory load the baud rate.

•

  The display will indicate:

ID-Name :      1  

The number represents the address code assigned to the instrument.

•

  Press the <▲> or <▼> key to select a number from 00 to 99.

•

 Press 

the 

 

 key to memory load the programmed value.

•

  The display will return to the original indication:

CAL?  65388   N=0   

•

  To exit the procedure press the <OFF> key.

The wiring to the digital output signals is made through a mini DIN connector mounted on the lower end of the case.
The pertinent connections are indicated below.

ground

5 V 

Tx

Rx

Female miniDIN connector  

(case mounted - external view)

ground

For easy interconnections a miniDIN connector with cable (cat. EE420123) con be supplied on request. The conductors
color codes can change with different supplier; please check before using.