Page 1
detcon inc.
Detcon Model 1010A-FB
Gas Detection System
Operators Instruction Manual
Document #692, September 14, 1999, Revision 1.0
MODEL 1010A-FB
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
detcon inc.
HOUSTON, TEXAS
POWER 2 AMP ALARM
HOUSTON T EXAS
C
C
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
detcon inc.
HOUSTON, TEXAS
C
K
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
ALARM
RESET
RESET
detcon inc.
HOUSTON, TEXAS
K
ALARM
RESET
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
detcon inc.
HOUSTON, TEXAS
detcon inc.
C
C
K
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
ALARM
RESET
RESET
detcon inc.
HOUSTON, TEXAS
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
detcon inc.
HOUSTON, TEXAS
DISABLE
C
C
C
C
K
K
K
O
O
L
L
MODEL 10A
MODEL 10A
H2S MONITOR
H2S MONITOR
ppm
ppm
HIGH
HIGH
LOW
LOW
FAULT
detcon inc.
HOUSTON, TEXAS
FAULT
ALARM
ALARM
RESET
RESET
detcon inc.
HOUSTON, TEXAS
ALARM
RESET
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
detcon inc.
HOUSTON, TEXAS
C
K
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
ALARM
RESET
RESET
detcon inc.
HOUSTON, TEXAS
❏ 1.0 INTRODUCTION
Detcon Model 1010AFB gas detection system consists of 3 major assemblies:
1. The NEMA 4 fiberglass control enclosure.
2. The single channel digital control modules.
3. The remote mount gas sensor assemblies.
The NEMA 4 fiberglass control enclosure is detailed in section 1.0 of the manual, the control modules
in section 2.0 and applicable sensor assemblies in section 3.0.
Page 2
❏ 1.1 DESCRIPTION
Detcon Model 1010A-FB control enclosure is a
NEMA 4X molded fiberglass case with hinged,
gasketed door and is designed for surface mounting
in both indoor and outdoor locations. An unbreakable
glass view window is gasket mounted in the door.
The NEMA 4X rating is by definition raintight and
therefore suitable for outdoor location in electrically
non-hazardous environments.
The control enclosure houses the mainframe
hardware compatible with Detcon Model Series 10A
digital electronic controls. Model 1010A-FB system
capacity is up to 10 channels consisting of remote
mounted area sensors and single channel electronic
controls (Detcon Model 10A). The system is powered
by AC line power and/or 24 VDC unless otherwise
specified at time of order.
The control enclosure includes, as standard
operating controls (DWG #580.27A); a power on/off
switch, an alarm disable switch and a line power fuse.
Discreet output terminal strips located on the
controller mother board are provided for sensor
terminations, Form C dry contact alarm outputs, 420ma outputs for remote recording devices, AC power
in, DC power in, remote reset as well as relay logic
and power terminations for the multiple alarm relay
circuit. Form C relay outputs may be discreet, zoned
or common by gold plated jumper tabs located on the
controller mother board. Form C dry contacts;
common, normally open and normally closed, are
provided for 3 alarms; High, Low and Fault. Contacts
are rated at .6 amp @125 VAC / 2 amp @ 30 VDC.
When used in conjunction with the multiple alarm
relay circuit (part #5026), contacts are rated 8 amp
@ 117 VAC / 5 amp @ 30 VDC.
❏ 1.2 MUTIPLE ALARM RELAY CIRCUIT
A multiple alarm relay circuit (DWG #377.01A)
mounted on the controller mother board is provided
with each Detcon Model 1010A-FB. Mounting
provisions for an additional alarm circuit are also
provided. The alarm circuit consists of 4 interposing
relays (contacts are rated 8 amp @ 117 VAC / 5 amp
@ 30 VDC) with 24VDC coils as standard. Other coil
voltage ratings must be specified at time of order.
The alarm circuit can be configured to ouput Form
C dry contacts (common, normally open and
normally closed), AC power or DC power. A 5 amp
microfuse is provided for each relay and is configured
in series with the common pole of its respective relay.
This configuration is functional regardless of whether
Form C dry contacts, AC power or DC power outputs
are used.
An In/Out termination is provided for applying AC
or DC power into any one of the interposing relays.
A gold plated jumper tab is used to apply the in/out
power option to its corresponding relay, thus the 4
relays may be used in a combination of Form C dry
contacts and VDC outputs or Form C contacts and
VAC outputs.
The terminations labled "Alarm Coil Power" located
to the left of the alarm circuit are used only
for coil power. The "+" termination may be used to
provide for various relay logic through the Form C dry
contacts of each individual Model 10A channel located
on the controller mother board directly above the
alarm circuit card. The "-" termination should be wired
into the common termination (shown by a common
symbol) located on the left of the alarm circuit board.
The terminations labled "Alarm Power" located to
the far left of the unit are used for providing power to
the In/Out termination on the alarm circuit card. As
can be seen in the 1010A-FB schematic / wiring
diagram (DWG #569.01A), the alarm power
terminations for AC come directly from the AC input
terminals located above on the controller mother
board. The same is true of the DC power terminations.
Note: DC power used to drive alarms must be
obtained through a remote DC power source. The
remote DC power source should be terminated to the
terminals labled "DC IN" located on the controller
mother board. The "DC IN" terminations function as
both an alternative DC source used to power the
1010A-FB as well as provide power for DC alarms.
The 1010A-FB power supply is not capable of
providing power for alarm devices.
❏ 1.3 ALARM DISABLE
The alarm disable switch, located on the front
panel, operates by removing DC common from the
"Alarm Coil Power" terminals. Disabling of alarms
Detcon Model 1010A-FB Gas Detection System PG.2
does not inhibit any function of the Model 10A
digital control module. The digital display, alarm
LED's and on board alarm relays remain active.
Page 3
❏ 1.4 REMOTE RESET
A remote mounted normally open momentary
switch may be used to reset all Model 10A
controllers. The reset function is effective when
the Model 10A's respective alarms have been
❏ 1.5 INSTALLATION
Step 1. Securely mount the 1010A-FB enclosure
in accordance with detail drawing NO. 525.26A.
Step 2. Connect 117 VAC input wiring to the lugless
terminal strip (labled AC IN) on the controller mother
board as detailed in drawing No. 580.27A. Line power
current load is maximum 2 amps. (Note: a jumper
selectable plug located on the power supply may be
used to allow for 220 VAC input.)
Step 3. Connect the 24 VDC standby battery to the
lugless terminal strip (labled DC IN) on the controller
mother board as detailed in drawing NO. 580.27A.
The DC current load is a maximum 3 amps.
Caution: Observe correct polarity when terminating
all input / output field wiring. Failure to
programmed in the latching position and alarm
conditions have passed. Each Model 10A controller
has its own alarm reset switch which is discussed
further in section 2.0.
do so may result in circuit damage on power up.
Step 4. If applicable, connect a normally open
momentary remote mounted switch to the lugless
terminal strip (labled RESET) located on the
controller mother board as detailed in drawing NO.
580.27A
Step 5. Refer to installation and wiring detail of
remote mount sensor assemblies as detailed in
section 3.0. Terminate field wiring from sensors to
Model 1010A-FB lugless terminal strips located on
the controller mother board as shown in drawing NO.
580.27A.
Note: Based on the application and use of relay
contact outputs, complete all wiring terminations prior
to application of power. Shut-in controls may be
omitted until system test is complete.
❏ 1.6 START-UP
Upon completion of all field wiring:
Depress the power switch on the controller
assembly front panel. Note that each Model 10A
controller digital display illuminates. Varying
❏ 1.7 POWER SUPPLY
The power supply on the 1010A-FB may be
changed from 110 VAC to 220 VAC input if available
power should warrant the change. The procedure
does not necessarily require the removal of the
power supply, however, if it is the first time it is done
by a given operator or if the control enclosure is
already wired in (making removal of the mainframe
assembly from the weatherproof enlosure difficult)
it is advisable that the power supply be removed.
The actual procedure is as simple as moving the
plug selectable wire from the 110V terminal to the
220V terminal located on the power supply printed
circuit board. The wire is labled W1 on the power
supply PCB and the terminals are labled 110V and
220v respectively.
readings may occur during sensor warm-up. A 10
second alarm delay will occur on power up.
Refer to section 3.0 for additional sensor start-up
detail.
(1) Remove the power supply (unless experienced
in the procedure) according to the instructions listed
below.
(2) Remove the wire (W1) from the 110V terminal
and plug it into the 220V terminal.
The 1010A-FB is modularly designed so as to avoid
unnecessary down time in the event of component
failure. In the event of a power supply failure, the
power supply may be removed without disconnecting
field wiring. To remove and replace the power supply:
(1) Remove the Model 10A control modules.
(2) Remove the 4 screws from the front panel and
expose the power supply.
(3) Disconnect the 5 pin plug on the left of the
power supply.
Detcon Model 1010A-FB Gas Detection System PG.3
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(4) Disconnect the 2 pin plug on the right of the
power supply.
(5) Remove the 3 screws from the bracket that
holds the power supply to the controller mother
board.
(6) Lift the power supply out of the enclosure
and remove the five wires from the two terminal
strips located on the power supply.
❏ 1.8 WARRANTY
(7) Replace by reversing the above steps.
Note: Be sure to re-connect the wires properly.
Connect AC to the 3 pin terminal strip; Pin 3 = L1,
Pin 2 = L2, Pin 1 = Ground. Connect DC to the 8
pin terminal strip; Pin 2 = +DC, Pin 5 = common.
Pin numbers are screened on the power supply
PCB.
Detcon inc., as manufacturer, warrants under
intended normal use each new Model 1010A-FB
control enclosure to be free from defects in
material and workmanship for a period of one year
from the date of shipment to the original purchaser.
All warranties and service policies are FOB the
Detcon Inc. facility located in the Woodlands,
Texas.
❏ 1.9 SPARE PARTS
PART # DESCRIPTION
5026 Multiple alarm relay circuit
3618-MAP-24 130 watt, 24 vdc switcher power supply
0224 Gold plated jumper tab
2800 28 vdc lamp for power and disable switch
0295 5 amp micro fuse
0298 2 amp 3AG fuse
3209 Power switch
3209 Disable switch
0269 Green switch cap
0268 Red switch cap
3280 Fuse holder
Mailing address: P.O. Box 8067, The Woodlands, Texas 77387-8067 ❏ Phone: (281) 367-4100 ❏ Fax: (281) 292-2860
Shipping address: 3200 A-1 Research Forest Dr., The Woodlands, Texas 77381
Page 5
16 GA.-BLK-9"
16 GA.-RED-9"
TO PS
COM
TO PS
+
TO PS
GND
TO PS
L2
TO PS
L1
16 GA.BLK
AMP
16 GA.GRN
16 GA.WHT
16 GA.BLK
2
16 GA.BLK
COMM
ON
+OU
T
DISAB
LE
DC
IN
RESE
T
AC
IN
ALAR
M
POWE
R
+I
N
L
1
+
L1
L2
GN
+D
CO
L1
L2
GN
D
C
M
D
16 GA.BLK
16 GA.BLK
16 GA.RED
16 GA.RED
16 GA.BLK
ALAR
COIL
POWE
M
R
+D
C
CO
M
POWE
R
COMMON
BUS
RESET
BUS
+ POWER
BUS
SWITCH
PCB
DISABL
TYP. MODEL 10A CONTROLLER
TERMINALS
+
MANCNOCNONCCNONCC
SENSOR
FAULTHIGHLOW
+
4-20MA
ALARM
E
detcon
inc.
MATERIAL
TITLE
1010AFB WIRING DIAGRAM
DRN BY
FINISH
TED S.
SCALE
SHEET OF
APPROVED BY
STOCK #
DRAWING NUMBER
DATE
STATUS
569.01A
REV #
1
Page 6
9.6
2
REV #
525.26A
5
2-15-90
DIMENSIONS WITH MOUNTING FOOT: WIDTH - SAME AS STANDARD; HEIGHT
- 20.75"
MOUNTING HOLE DIMENSIONS (CENTER TO CENTER):
VERTICLE - 19.25
HOROZONTAL - 12.5
DIA. - .44"
PADLOCKIN
G
LATCH
12"
15.75
"
DRAWING NUMBER
18149 DIMENSIONS / MOUNTING DETAIL
TITLE
STATUS
DATE
STOCK #
APPROVED BY
SCALE
SHEET OF
TED S.
DRN BY
FINISH
.31" DIA. MOUNTING
HOLE
.56" DIA.
COUNTERBORE
19.2
5
16.75
"
detcon
inc.
MATERIAL
Page 7
#4
#3
#2
#1
#4 #3 #2 #1
N.C.
IN / OUT
COM
N.O.
N.C.
COM
N.O.
N.C.
COM
N.O.
N.C.
COM
N.O.
39-6-89
REV #
377.01A
DRAWING NUMBER
STATUS
DATE
5026
STOCK #
APPROVED BY
SCALE
SHEET OF
I/O JUMPERS
5 AMP MICRO FUSE
32 1
TOP VIEW RELAY
NO NC C
45
#4
#3
COIL #4
COIL #3
COIL #2
COIL #1
#2
#1
TED S.
MULTIPLE ALARM RELAY CIRCUIT
TITLE
DRN BY
detcon inc.
FINISH
MATERIAL
COMMON
Page 8
MODEL 1010A-FB
GND
+
L1
L2
DC IN
RESET
AC IN
C
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
+
MANCNOCNONCCNONCC
SENSOR
FAULTHIGHLOW
POWER 2 AMP ALARM
HOUSTON TEXAS
K
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
detcon inc.
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
DISABLE
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
C
K
O
L
MODEL 10A
H2S MONITOR
ppm
HIGH
LOW
FAULT
ALARM
RESET
detcon inc.
HOUSTON, TEXAS
detcon inc.
MATERIAL
+DC
COM
GND
L1
L2
ALARM
LOGIC
+
4-20MA
ALARM
POWER
COIL
+DC
COM
TITLE
DRN BY
FINISH
OPTIONAL
INTERPOSING
RELAY CARD
1010AFB CONTROLLER TERMINALS
TED S.
SCALE
SHEET OF
APPROVED BY
STOCK #
OPTIONAL
INTERPOSING
RELAY CARD
DRAWING NUMBER
DATE
5-14-90
STATUS
580.27A
REV #
1
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