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detcon inc.

Detcon

Model 1212-N4X

NEMA 4 Control Enclosure

Operator’s Installation & Instruction Manual

January 1, 1999 Document #2116 Rev. 1.1

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

etcon inc

able

isable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

ONITOR

ppm H

USE

PRESS

POWER

ON/OFF

FUSE

3 AMP

ALARM

DISABLE

odel

212-N4X

HOUSTON, TEXAS

detcon inc.

Summary of content (9 pages)

PAGE 1
Detcon detcon inc. Model 1212-N4X NEMA 4 Control Enclosure POWER ON/OFF FUSE 3 AMP ALARM DISABLE Model 1212-N4X FUSE detcon inc.
PAGE 2
Table of Contents 1.0 Introduction 1.1 Description 1.2 Specifications 1.3 Multiple Alarm Relay Circuit 1.4 Alarm Disable 1.5 Remote Alarm Reset 1.6 Installation 1.7 Start-up 1.8 Maintenance & Repair 1.9 Spare Parts List 1.10 Warranty 1.0 INTRODUCTION Detcon Model 1212-N4X consists of 3 major assemblies: 1. The NEMA 4 fiberglass control enclosure. 2. The Model 12 single channel digital control modules. 3. The remote mount gas sensor assemblies. The NEMA 4 control enclosure is detailed in section 1.
PAGE 3
1.2 SPECIFICATIONS Electrical Classification NEMA 4X Dimensions 20.25''W x 20.19''H x 10.
PAGE 4
Figure 1 Multiple Alarm Relay Circuit I/O J1 J2 F1 J3 F2 J4 F3 C F4 NC 4 NO C 4 3 NC 3 2 NO 1 C NC 2 NO C NC 1 NO I/O Jumpers #4 #3 #2 #1 5 Amp Micro Fuse In/Out Com NC NO Com NC NO Com NC NO Com NC NO #4 Coil #4 Coil #3 Coil #2 Coil #1 Common #3 #2 #1 Model 1212-N4X NEMA 4 Control Enclosure PG.
PAGE 5
Figure 2 Pin 1 N P1 16ga x 6" 16ga x 6" 16ga x 6" BLK 16ga x 9" BLK 16ga x 9" TAN 22ga x 9" TAN 22ga x 9" RED 16ga x 9" RED 16ga x 9" P3 Fuse P2 Pin 2 L Pin 3 Alm Dis Sw BLK 16ga x 9" BLK 16ga x 9" TAN 22ga x 9" TAN 22ga x 9" RED 16ga x 9" RED 16ga x 9" Pwr Sw D2 6A 50V 16ga x 6" RED BLK 16ga x 6" PS VDC BLK 16ga x 9" BLK 16ga x 9" Power Supply RTN + Out PS VAC P4 L1 - BLK N - WHT GND - GRN P5 D1 6A 50V Alm Reset V U T S R P N M L K J H F E D C B A VDC IN VAC IN L1 N GND VDC Alm P
PAGE 6
1.4 ALARM DISABLE The alarm disable switch, located on the front panel (figure 3), operates by removing DC common from the “Alarm Coil Power” terminals. Disabling of alarms does not inhibit any function of the Model 12B digital control modules. The digital display, alarm LEDs and on board alarm relays remain active. Figure 3 POWER ON/OFF FUSE 3 AMP ALARM DISABLE FUSE PRESS 1.
PAGE 7
1.6 INSTALLATION 1. Securely mount the 1212-N4X enclosure in accordance with the drawing in figure 5. Figure 5 Mounting Holes - 7/16" Dia. 23.07 21.81 14 10.25 20.63 Note: Reference figure 6 for wiring terminations. Caution: Observe correct polarity when terminating all input/output field wiring. Failure to do so may result in circuit damage on power up. 2. Connect 85-264 VAC input to the terminal strip labeled “VAC IN” (L1, N, GND). 3.
PAGE 8
. If applicable, connect a normally open momentary remote mounted switch to the terminal strip labeled “Alarm Reset”. Figure 6 Zone Programming Jumpers VAC IN L1 N GND VDC Alm Pwr CH12 A (+) B (–) Shld VDC VAC L1 N GND Alm Coil Pwr CH2 mA Com NO/NC Com NO/NC Com NO/NC Com NO/NC RS-485 VDC IN CH1 4-20mA Fault Alm 1 Alm 2 Alm 3 Sensor Out Alm Reset 1.7 START UP Upon completion of all field wiring: Depress the power switch located on the front panel.
PAGE 9
1.9 SPARE PARTS LIST Part # 5026 0295 3622 0224 2812 0300 320-3217-1 320-3217-2 2806 2807 3280 Description Multiple alarm relay circuit 5 amp micro fuse 250 watt, 24 VDC switcher power supply Gold plated jumper tab 24 VDC lamp for power and alarm disable switch 3 amp 3AG slow blow fuse Power switch assembly Alarm Disable switch assembly Green switch cap (for power switch) Red switch cap (for alarm disable switch) Fuse holder 1.10 WARRANTY Detcon Inc.