Ballantine 3207 - Controls, Indicators, and Terminals; Front Panel Controls and Functions; Rear Panel Connections and Functions

BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER
13
1.4 Controls, Indicators and Terminals
DESCRIPTION FUNCTION
FRONT PANEL
1. ON/OFF Switch
-Switches ON the instrument when pressed.
- Switches OFF the instrument when released.
2.
2,20,200,2000
Range selector switches
Tactile switch (soft touch) used to select
appropriate range and function.
3. TRIG switch To trigger PULSE mode operation.
4.
PULSE MODE
PULSE mode when LED ON.
CONTINUOUS mode when LED OFF.
5.
I+ & I-
Output terminals used to send defined current
through the resistance under test.
6. ZERO adjust
ZERO adjust preset, is accessible through the
front panel and is used to zeroing the initial
reading on display.
7.
V+ & V-
Input terminals used to measure voltage across
the resistance being measured
8.
mΩ & Ω Indicating selection of mΩ/Ω function
9.
OPER/STDBY
OPERATE mode when LED ON.
ZERO adjust mode (STAND BY) when LED
OFF.
10.
LED DISPLAY
4 ½ digit LED display.
11.
LED (BATTERY OPERATION)
(only for the Option – 05)
OPERATE on BATTERY when LED ON
OPERATE on AC MAIN when LED OFF
REAR PANEL
1.
AC Mains Inlet With 250
mA Fuse
Receptacle for AC mains input power cable.
2.
Input Protection fuse 1A
Fast Blow
For protection of the current source.
3.
RS 232 Communication Port
For computer interface.