Tonghui TH2829 Series - Talk Only; Bias Src

TH2829X Series Operation Manual Chapter 4 [SYSTEM] and [FILE]
55
RS485, use RS485 address).
Operation steps for setting GPIB address:
1) Move the cursor to GPIB ADDR, the following soft keys will be displayed.
 ↑（+）
This soft key is used to increase the GPIB address.
 ↓（-）
This soft key is used to decrease the GPIB address.
4.1.10 TALK ONLY
The Talk only function is used to control the instrument to send each
measurement result to bus through its interface of RS232C, GPIB, LAN, USBTMC,
USBCDC or RS485. When the talk only function is ON, the instrument cannot be
controlled by PC.
Operation steps for setting the talk only function
1) Move the cursor to TALK ONLY, the following soft keys will be displayed.
 ON
 OFF
2) Press ON to turn on the talk only function or OFF to turn off this function.
4.1.11 BIAS SRC
Bias source is used to select the DC bias power. The instrument provides 3 kinds
of bias source as shown below:
 INT mode
The standard DC bias voltage source is from -10V to +10V and the DC bias
current source is from 0 to 100mA.
———————————————————————————————————————
NOTE: When the DC bias source is in use, only the output impedance of 100Ω can
be used.
———————————————————————————————————————
 OPT mode
The optional DC bias source can provide internal DC bias current source (0~1A).
———————————————————————————————————————
NOTE: TH2901-1A optional must be installed, then the mode can be supported.
———————————————————————————————————————
 TH1778 mode
When the instrument adopts the external bias source to perform on-line test,
TH1778 mode should be selected.
———————————————————————————————————————
NOTE: TH1778 must be connected, then this mode can be supported.