OTIS GEN II OI-6000, Руководство по эксплуатации

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OPERATION SETTINGS
OI-6000-X-X-X-X-O OPS_GUIDE_REV 3.1 45
4.3 SENSOR ALARM SETTINGS
The OI-6000 has two alarm settings: LOW alarm and HIGH alarm. Regardless of whether the device includes the
optional two dry-contact relays, the system alarm settings are available on the device. All alarm set-points are field
adjustable up to 60% of the full scale gas concentration. The factory default setting on the OI-6000 for the LOW
alarm is 10% of full scale and 15% of full scale for the HIGH alarm. The LOW alarm set-point should NEVER be
programed to a higher setting than the HIGH alarm set-point.
Both alarms are configurable to activate on either a rising or falling level of gas. Most gas types activate alarms on
rising levels of gas. Oxygen is a special case and by default activates the LOW alarm when the detected gas
concentration FALLS below the LOW alarm set-point and the HIGH alarm when the detected gas concentration
RISES above the HIGH alarm set-point. The factory default setting for all other gas types is to activate when the
detected gas RISES above the alarm set-point.
When the gas concentration detected at the sensor meets or exceeds the LOW alarm set-point, the LOW alarm
indicator LED will illuminate amber. When the gas level meets or exceeds the HIGH alarm set-point, the HIGH alarm
indicator LED will illuminate red. The alarm indicator LEDs will not switch off until the gas level reading at the sensor
has fallen 10% below the alarm set-points or until the alarm is manually reset at the device, dependent upon the
relay latching/non-latching settings.
If the device includes the optional two dry-contact relays, Relay 1 and Relay 2, the LOW and HIGH alarm settings
will control the wired relays, respectively. When external alarming devices, such as alarm lights (visual) and horns
(audio) are wired to the device, as the alarm set-points are reached, the relays will become activated, as they are
wired and programmed to perform.
4.3.1 SENSOR LOW ALARM SETTING
1. Use the ADD and SUB buttons to increase and decrease the LOW alarm set-point, respectively.
2.
Press the MENU button to save the desired setting and to advance to the sensor LOW alarm rise/fall
setting screen.