TTI TSX Series Service Manual page 5

Note: All voltage and current levels set via the keyboard are displayed on a separate 0.0.3" 4-
digit display. This entry preview system ensures that the user can observe the value entered
before it is effected thus avoiding possible error. The display is also used for setting additional
functions. When the output switch is on and no other function is selected, the display shows
output power in Watts.
Additional keyboard functions
Increase or decrease voltage or current in user-selectable steps (delta mode). Store and recall
voltage, current and OVP levels from non-volatile memory (25 memories). Set digital interface
type (RS232 or GPIB), set baud rate, set address.
Digital Interfaces
Operational functions:
RS232:
GPIB:
Output Specifications – Remote Operation
Output Voltage Setting:
Output Current Setting:
Setting Accuracy:
Output Switch:
Readback Resolution:
Readback Accuracy:
Response Time Over RS232/GPIB
Interface:
Power Supply:
General
Electrical safety:
Temperature specifications:
Size:
Weight:
4
Set voltage; set current; set OVP; set output on/off; read output
voltage; read output current; read output power.
Variable baud rate, 9600 baud maximum. 9 pin D-connector
(female). Fully compatible with ARC (Addressable RS232 Chain)
system.
Conforming with IEEE488.1 and IEEE488.2
12 bit resolution (10mV steps)
12 bit resolution (10mA steps)
Voltage: + (0.1% + 10mV), Current: + (0.2% + 20mA)
Electronic by interface command
Voltage: 10mV over the entire range
Current: 10mA over the entire range
Voltage: + (0.2% of reading + 1 digit)
Current: + (0.5% of reading + 1 digit)
<15ms (single command, buffer empty)
An internal time constant, T, (typically 22ms) governs the settling time
of a step voltage increase. Settling time to within 1% of the step
change = 4.6T, to 0.1% = 6.9T, to 0.01% = .2T; for example, after a
10V step the output will be within 1 digit (10mV = 0.1%) of its new
value in typically 150ms. For load currents of 1 Amp or more, settling
times for downward steps will be very similar; however, response
times will be longer at low loads.
Built to comply with IEC 348
5 o C to 40 o C operating, 20% to 80% RH
–40 o C to 70 o C storage
200 x 140 x 350mm (WxHxD) half rack width x 3U height (optional
rack mounting kit available)
5.5kg