RKI Instruments GX-2012 Manual - Manual (Page 17)

GX-2012 Operator’s Manual Instrument Description • 9
Control Buttons
Five control buttons are located below the LCD. They are arranged around a
central button, the POWER ENTER button. The DISPLAY (ADJ) button is
on the left, the RESET SILENCE button on the right, the AIRS button on
the top, and the (SHIFT)T is on the bottom.
Printed Circuit Boards
The GX-2012 printed circuit boards analyze, record, control, store, and
display the information collected. The circuit boards are located inside the
case. They are not user serviceable.
Alarm LED Arrays
Three red alarm LED (light emitting diode) arrays are visible through frosted
plastic lenses in the case. One is on the top front, one on the left side, and one
on the right side. The alarm LED arrays alert you to gas, low battery, and
failure alarms.
Infrared Communications Port
An infrared (IR) communications port is located just below the RESET
SILENCE button. The signal goes through the control button material. The
data transmitted through the port is in standard IrDA protocol. A computer’s
infrared port or an IrDA/USB cable connected to a computer’s USB port can
be used to download data saved by the GX-2012 to a computer using the GX-
2012 Data Logger Management Program. See the GX-2012 Data Logger
Management Program operator’s manual for data logging and downloading
instructions.
Table 2: GX-2012 Control Button Functions
Button Function(s)
POWER ENTER • turns the GX-2012 on and off.
• used during setup and calibration.
RESET SILENCE silences and resets audible alarm if the GX-2012 is programmed
for latching alarms and the alarm silence option is on
1
DISPLAY (ADJ) • activates Display Mode
• enters instructions into the GX-2012’s microprocessor
AIRS • activates the demand-zero function (automatically adjusts the
GX-2012 in fresh-air conditions)
• scrolls through the display and settings modes
(SHIFT)T • scrolls through the display and settings modes
• enters instructions into the GX-2012’s microprocessor
1 The GX-2012’s alarms are user-adjustable. See “Chapter 6: Maintenance Mode” on page 100.