Thermo Scientific Oretronic III, Operating & Service Manual

Page: 26 / 152

Introduction
1-12 Introduction Thermo Fisher Scientific
REC-4105 Rev L
Overvoltage Category:
Transient overvoltage according to installation category
(Overvoltage Category II)
Power Switch:
On circuit board
Displays/Keypad
Display:
Three seven-segment LEDs for counts
One eight-character alphanumeric LED display
Remote Display:
Option allows a second display and keypad to be remotely mounted
Bar Graph:
20 LED bars
Status LEDs:
Red for ALARM, green for NORMAL, yellow for BYPASS
Calibrate LED:
Indicates the detector is in calibrate mode
Keypad:
Mounted on the enclosure door
Cutouts for viewing display, status LEDs, and bar graph
Inputs
All isolated inputs have same commons connected to isolated supply
voltage common with the exception of the receiver coil.
Clip Detector:
Isolated, supply voltage provided
Configured for two clip detectors on same input
24 V open circuit, 7 mA short circuit, and 3 mA threshold
Reset Disable:
Isolated, supply voltage provided
24 V open circuit, 7 mA short circuit, and 3 mA threshold
High Pile (dual coil only):
Isolated, supply voltage provided
24 V open circuit, 7 mA short circuit, 3 mA threshold