Model DTD Single Phase, Duplex Timed Dosing Pump Control.
The Model DTD Build-A-Panel™ control panel provides greater flexibility by ordering through options, allowing you to customize a standard panel to your specific needs.
The Model DTD control panel provides a reliable means of controlling two alternating 120/208/240V single phase pumps in on-site septic installations requiring timed dosing.
A programmable timer, in conjunction with an alternating circuit board, alternately activates the magnetic motor contactors to turn the pumps on/off and equalizes pump wear. A low level cutout float overrides the timer to prevent the pump from running dry. An alarm switch activates the audio/visual alarm system indicating a high liquid level.
Common applications include sand filter systems, pressure distribution systems, mound systems, or any application requiring a timed dose.
SJE-Rhombus Model DTD - Single Phase Timed Dosing Duplex Motor Contactor Control Panel Features
Panel Features:
NEMA 4X indoor/outdoor enclosure
Red alarm beacon provides 360o visual check of alarm condition (NEMA 1 style uses a door mounted indicator in lieu of a beacon)
Alarm horn provides audio warning of alarm condition (NEMA 1 style uses an internally mounted buzzer in lieu of a horn)
External alarm test/normal/silence switch allows horn and light to be tested and horn to be silenced in an alarm condition; alarm automatically resets once alarm condition has been cleared
Horn silence relay
Magnetic motor contactor controls pump by switching electrical lines
Hand/Off/Automatic (HOA) switch for manual pump control
Control and alarm fuses
Float switch terminal block
Incoming power terminal block
Programmable timer with separate variable controls (to set on/off times from .05 seconds to 30 hours)
Circuit breaker provides pump disconnect and branch circuit protection
Spare fuse
Backplate label includes diagram of float, pump and power connections
Ground lug
UL/cUL Listed
Five-Year Limited Warranty
Specifications
SJE-Rhombus Model DTD - Single Phase Duplex Motor Contactor Control Panel
Components
Enclosure measures 10 x 8 x 4 inches. NEMA4X.
Magnetic Motor Contactor controls pumps by switching electrical lines
HOA Switch for manual pump control.
Control/Alarm Fuse
Float Switch Terminal Block
Incoming Power Terminal Block
Programmable Timer with separate variable controls allows for setting the on and off times from .05 seconds to 30 hours.
Circuit Breaker (optional) provides pump disconnect and branch circuit
protection
Alternating Circuit Board provides pump control and alternation (U.S.Patent 5,909,352).
Spare Fuse
Ground Lug
Red Alarm Beacon provides 360° visual check of alarm condition.
Alarm Horn provides audio warning of alarm condition (83 to 85 decibel rating).
Exterior Alarm Test/Normal/Silence Switch allows horn and light to be tested and horn to be silenced in an alarm condition. Alarm automatically resets once alarm condition is cleared.
Horn Silence Relay (mounted under bracket).
NOTE: Schematic/Wiring Diagram and Pump Specification Label are located
inside the panel
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources
SJE-Rhombus Model TD Timed Dose - Single Phase Simplex Motor Contactor Panel
Resources
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