TEC Source Arroyo 5235, User Manual

Page 18 · 5235 

TECSource 

User’s Manual 

Adjusting the 

Mount

 setting to 

User Defined

 removes all software limits, allowing 

unrestricted operation of the 

TECSource

.  

Remote Mode Operation 

 
Remote mode operation is when the 

TECSource

 is being controlled by a 

computer over the USB or RS232 interfaces. When in remote mode, the 

TECSource

 behaves differently, preventing you from affecting the operation of 

the instrument. Some of the primary differences are you will not be able to 
change the set point, you cannot enter the menu, and the knob is disabled. 
 
You can exit remote mode at any time by pressing the MENU button, which has 
a secondary function to return the 

TECSource

 to local operation when in remote 

mode.  

 
While in remote mode, the Remote LED also acts as an activity indicator, and 
will flash whenever there is communication with the computer. 
 
Details on how to communicate with the 

TECSource

 can be found in a separate 

Computer Interfacing Manual,

 which is included on the CD that accompanied 

this product. 
 

Installing the USB Drivers 

 
Using the 

TECSource

 via USB is just as simple as using the serial port. In fact, 

once you have installed the USB drivers, the instrument will appear as a virtual 
serial port that you can use just like a normal serial port.  
 

To install the drivers, simply plug in the instrument to your computer. When the 
Add New Hardware wizard appears, insert the CD you received with the 

TECSource

 and follow the on-screen instructions.  

 
Once the drivers are installed, to determine the COM port number, go to 

Control 

Panel

 and select 

System

. Once the 

System Properties

 dialog appears, choose 

the 

Hardware

 tab then click on the 

Device Manager

 button. When the 

Device 

Manager

 appears, click on the plus sign to the left of 

Ports

. The port identified 

as an 

USB Serial Port i

s the 

TECSource

. In the event you have multiple 

TECSource

 instruments plugged in simultaneously, you will need to experiment 

to see which instrument was assigned to which port. For example, you could 

change the set point when the output was off to see which unit’s set point 
changed.