ETS-Lindgren OMS, Руководство пользователя

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19
Signal Outputs
Local Display: Digital display calibrated for
oxygen.
The range is stated on the serial number and can be accessed via
the joystick on the front panel. In the measurement mode push the
joystick down to scroll the gas and range on the display. Push the
joystick down again to stop the scrolling and re-display the gas.
Standard: Analog Output: DC 4–20 mA
Optional:
•
Relay Output: Dual level
user-selectable alarm relays and
one fault relay
•
Rated: 2 amps @ 30 VDC;
2 amps @ 240 VAC
Default Factory Settings
The built-in relay settings are user-changeable; see Main Menus and
Submenus on page 60 for more information.
Menu Function / Description Factory Default
Set 4–20 mA loop
To set the OMS 4 mA (zero) and 20 mA
(span) to your PLC or distributive control
system.
The mA output is set at the
factory using a calibrated
Fluke meter.
Set Formats; LED and Alarm Relay State
To set the relays to energize (normal) or
de-energize (fail safe) when the alarm
activates.
Note: The LED indicators on the front panel
are connected directly to the alarm relays.
Alarm 1 = Normal
Alarm 2 = Normal
Fault = Normal