RKI Instruments Gas Tracer - Manual (Page 17)

Gas Tracer Operator’s Manual Instrument Description • 9
LCD
A digital LCD (liquid crystal display) is visible through a clear plastic
window on the front of the case. The LCD display simultaneously
shows the gas reading for all installed sensors. The display also shows
information for each of the Gas Tracer’s program modes.
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 AIR▲ button on the top, and the (SHIFT)▼ is on the bottom.
Printed Circuit Boards
The Gas Tracer 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.
Table 2: Gas Tracer Control Button Functions
Button Function(s)
POWER ENTER • turns the Gas Tracer on and off.
• used during setup and calibration.
RESET SILENCE silences and resets audible alarm if the Gas Tracer is
programmed for latching alarms and the alarm silence option is
on
1
DISPLAY (ADJ) • activates Display Mode
• enters instructions into the Gas Tracer’s microprocessor
AIR ▲ • activates the demand-zero function (automatically adjusts the
Gas Tracer in fresh-air conditions)
• scrolls through the display and settings modes
(SHIFT) ▼ • scrolls through the display and settings modes
• enters instructions into the Gas Tracer’s microprocessor
1 The Gas Tracer’s alarms are user-adjustable. See “Chapter 6: Maintenance Mode” on page 118.