Oldham MX15, Инструкция по установке и эксплуатации, Страница: 18 / 32

14 MX 15
Instruction Manual
Menu See page
PROGRAMMING (PRG) 14
FAC (factory settings)* -
START UP (STA) 15
CODE (COD) 15
BUZZER (BUZ) 16
TEST (TST) 16
* The FAC menu is not described here as it is reserved exclusively for Oldham's use.
Do not use this menu without prior training.
Menu Confirmation
■ Bring up the desired menu as directed in the Viewing the menus
paragraph.
■ Confirm the menu by pressing ENTER ( ).
Exiting a menu (ESCAPE)
Press the "+" and "-" ( and ) buttons together and validate or reject the
changes:
■ Press ENTER ( ) to quit without saving the changes.
■
Press "+" ( ) and then ENTER ( ) to quit and save the changes made.
Programming Menu
A maintenance key is displayed while the programming menu is being
used. This menu allows the user to program measurement channel
configurations such as:
■ Start/Stop: blinking yellow LED.
■ Chemical symbol for the gas detected (CH4, CO, etc.).
■ Unit of measure (%LIE, ppm, etc.).
■ Measurement scale and decimal point (0.1, 1.0, 10, 100, 1000, etc.).
■ Programming the two gas alarm thresholds. The corresponding red LED
alarm will light up during this stage.
■ Options for clearing gas alarms:
1. Manual (MAN). If the gas level comes back down to below the preset
alarm threshold, the alarm will need to be manually acknowledged by
pressing the Acknowledge button
.
2. Automatic (AUT). If the gas level comes back down to below the preset
alarm threshold, the alarm will be acknowledged automatically.
■
Time delay (in minutes and seconds) for alarm relay triggering. Blinking
yellow LED light.
Figure 8: depiction of alarm triggering.
Alarm threshold
exceeded LED alarm
and buzzer Delay Alarm relay
switching