Detcon 810-N1-24VDC - Manual (Page 7)

810-N1-24VDC
810-N1-24VDC Instruction Manual Rev 0.0 Page 3 of 6
Caution: Observe correct polarity when terminating all input/output field wiring. Failure to do so may
result in circuit damage on power up
.
2. Observe correct polarity when terminating all input/output field wiring. Failure to do so may
result in circuit damage on power up.
3. Connect 24 VDC input to the terminal strip labeled “DC IN” (+ and –).
4. If applicable, connect a normally open momentary remote mounted switch to the lugless terminal
(labeled RESET) located on the controller mother board.
5. If applicable, terminate the discrete 4-20 mA output to external device(s): Terminals are labeled
“(+) 20” and “(–) 4-20”.
6. If applicable, terminate the RS-485 serial output to external device(s). Terminals are labeled “A
(+)”, (–)”, and “SHLD”.
7. Refer to installation and wiring detail of remote mount sensor assemblies as detailed in section
3.0. Terminate field wiring from sensors to Model 410-N1-24VDC rack lugless terminal strips
located on controller mother board.
8. Alarm relay outputs may be discrete, zoned, or common via gold plated jumper tabs. Configure
accordingly.
Note: Based on the application and use of relay contact outputs, complete all wiring terminations prior
application of power. Shut-in controls may be omitted until system test is complete.
6.0 START-UP
Upon completion of all field wiring: Apply 24 VDC power. Note that each Model 10B controller digital
display illuminates. Varying readings may occur during sensor warm-up. A 10 second alarm delay will on
power up. Refer to sections 2.0 and 3.0 for additional start-up detail.
7.0 MAINTENANCE AND REPAIR
The Detcon Model 410-N1s modular design allows for minimum down time during maintenance and/repair. A
model 10B control module may be changed by turning the latch knob clockwise until it stops and then sliding
it out of the panel by pulling on the latch knob. To install, slide the 10B control module into the 410-N1-
24VDC control enclosure and then secure by turning the latch knob counter-clockwise until it stops. See
section 3 for more information on the 10B control module.