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detcon inc.

Detcon

Model 1212B-FB

NEMA 4 Control Enclosure

Operator’s Installation & Instruction Manual

January 1, 1999 Document #2116 Rev. 1.1

POWER

ON/OFF

FUSE

3 AMP

ALARM

DISABLE

Model

1212B-FB

HOUSTON, TEXAS

detcon inc.

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

ALARM 3

ALARM 2

ALARM 1

FAULT

ALARM

RESET/

Test

HOUSTON, TEXAS

detcon inc

able

disable

ALARM

MODEL 12B

HYDROGEN

SULFIDE

MONITOR

ppm H

FUSE

PRESS

Summary of content (9 pages)

PAGE 1
Detcon detcon inc. Model 1212B-FB NEMA 4 Control Enclosure POWER ON/OFF FUSE 3 AMP ALARM DISABLE Model 1212B-FB 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 1212B-FB consists of 3 major assemblies: 1. The NEMA 4 fiberglass control enclosure. 2. The Model 12B 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 1212B-FB J4 F3 C F4 NC 4 NO C 4 3 NC 3 2 NO C 1 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 1212B-FB 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 Pin 2 L Pin 3 Alm Dis Sw P2 Fuse 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" Pwr Sw RED BLK D2 6A 50V 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 1212B-FB 1.
PAGE 7
1.6 INSTALLATION 1. Securely mount the 1212B-FB 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 117VAC 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.