SRS Labs FCX Series User manual

FCX SERIES POINT TYPE
GAS DETECTOR
INSTRUCTION MANUAL

2
CONTENTS
SUMMARY.......................................................................................................................................................................... 3
NOTICE............................................................................................................................................................................... 5
PARTS VIEW........................................................................................................................................................................ 6
REMOTE CONTROLLER ....................................................................................................................................................... 7
OPERATION INSTRUCTION.................................................................................................................................................. 8
ADJUSTMENT INSTRUCTION ............................................................................................................................................ 10
PARAMETERS INSTRUCTION............................................................................................................................................. 11
COMMON GAS INSTRUCTION .......................................................................................................................................... 12
PRODUCT SIZE.................................................................................................................................................................. 13
INSTALLATION .................................................................................................................................................................. 14
WIRE TERMINAL INSTRUCTION ........................................................................................................................................ 15
INSTALLATION PRINCIPLES ............................................................................................................................................... 16
TROUBLESHOOTING......................................................................................................................................................... 17
SERVICE COMMITMENT ................................................................................................................................................... 18

3
SUMMARY
FCX SERIES INCLUDING FOLLOWING PRODUCT INFORMATIONS
a) FCX POINT POINT TYPE COMBUSTIBLE GAS DETECTOR RANGE 0~100%LEL
b) FCX/APOINT TYPE GAS DETECTOR
c) FCX/B POINT TYPE GAS TECTOR
d) FCX/B2 POINT TYPE GAS DETECTOR
The detector is capable of continuous monitoring of the gas under industry environment that can be
measured, and transfer the concentration of gas into the 4-20mA signal, transmitte to the gas alarm
controller or DCS system for display and processing.

4
This series of product design, manufacturing, test verification regulation of national standards, to comply
with the following
GB15322.1-2003 《combustible gas detector PART ONE：combustible point type gas tector for testing range
0~100%LEL》
GB12358-2006 《General requirements of technology for gas detection and alarm instruments under
workplace ambient》
JJG 693-2011 《Combustible gas detection alarm》
JJG 551-2003 《Sulfur dioxide gas detector》
JJG 915-2008 《Carbon monoxide detection alarm》
JJG 695 -2003《Hydrogen sulfide gas detector》
JJG 365 -2008《Electrochemical oxygen measuring instrument》

5
NOTICE
Be sure to read this manual carefully before installation,operation and maintainess
The installation and operation must strictly comply with the relevant national standards.
Any operation on the detector must be performed by professional people.
Operation with power is strictly forbidden(such as installation, changing parts)
The detector must be safely grounded, to avoid influence by radio frequency interference.
The sensor may contain corrosive solution, should be particularly careful when handling.
Never disassemble sensor.
Do not put the detector working in ambient termperature exceed its range
The impact of high concentration gas to sensor is prohibited.
Change the sensor in time when the lifetime expires

6
PARTS VIEW：
Exploded view
No.
Part name
1
Top lid
2
seal
3
glass
4
Pressure ring
5
Display modular
6
Sensor connector
7
Bottom cabinet
8
Holow screw
9
Wire box cover
10
Wire box
11
Hollow screw
12
Grounding screw
Note ：This chart is for models FCX、FCX/A、FCX/B、FCX/B2

7
Remote controller：
Picture
Items
Description
Mute
Back
Ok
Confirm
Bit selection
Bit selection
▲
Bit value added
▼
Bit value reduced
1
The infrared
emission tube

8
Operation instruction：
Parameter
setting
password
operation
“LOW ALARM”
“1111”
Press “FUNCTION”BUTTON 》》 Input password - - - - 》》 Press“ok”„„
Press“LOW ALARM”button，low alarm“AL”flash 》》 “ ”、“ ”bit selection，
“▼”、“▲”adjust low alarm value „„
press“ok”， show“good”， saved and exit
press“ ”，show“ESC”， exit without saving
“HIGH ALARM”
“1111”
press“function”button 》》 input password - - - - 》》 press“ok”„„
press“HIGH ALARM”button，high alarm“AL”flash 》》 “ ”、“ ”bit selection，
“▼”、“▲”adjust high alarm value „„
press“ok”， show“good”， save and exit
press“ ”，show“ESC”， exit without saving
“TESTING
RANGE”
“0911”
press“function”button 》》 input password - - - - 》》 press“ok”„„
Testing range：（ testing range setting）
Press “TESTING RANGE”button，concentration value flash，》》 “”、
“ ”bit selection，“▼”、“▲”adjust value „„

9
“Zero
calibration”
“Spam”
“calibration
”
“6677”
Press “function”button 》》 input password - - - - 》》 press“ok”„„
Zero calibration：（ Zero calibration of detector）
press“Zero calibration”button，show“ ”、“zero value”》》 press
“ok”button after the value is stable
spam：（ standard gas concentration）
Press “spam”button，show“”、“ spam value”》》 “ ”、“ ”bit
selection，“▼”、“▲”adjust value 》》 press“ok”to save and exit
calibration：（ calibration gas）
Press“calibration”button，show“ ” 》》 inlet the standard gas 》》
press“ok”after the value is stable，show“good”and save the setting
and exit, and shut off the standard gas.

10
Description of calibration：
picture
Items
Description
①
Gas tank and
pressure relief valve
②
Standard gas hose
③
Standard gas cover
④
Gas detector

11
Parameter instruction：
Model No.
Target
gas
Working
power
Sampling
method
Detection
principle
Communication
mode
Display
mode
Alarm
mode
Signal
output
Explosion
proof
grade
FCX
methane
DC24V ±
15%
Free
diffusion
Catalytic
combustion
Three wires
4-20mA
LCD
Alarm
lamp
(option)
Passive
normally
open
contact
EXd IIC T6
Gb
FCX/A
Flammable
liquid,
organic
vapor
DC24V ±
15%
Free
diffusion
Catalytic
combustion 、
semiconductor
Three wires
4-20mA
LCD
Alarm
lamp
(option)
Passive
normally
open
contact
EXd IIC T6
Gb
FCX/B
Toxic and
harmful
gas
DC24V ±
15%
Free
diffusion
Electrochemical,
infrared,
semiconductor
Three wires
4-20mA
LCD
Alarm
lamp
(option)
Passive
normally
open
contact
EXd IIC T6
Gb
FCX/B2
Toxic and
harmful
gas
DC24V ±
15%
Free
diffusion
electrochemical
Two wires
4-20mA
LCD
EXd IIC T6
Gb

12
COMMON GAS INSTRUCTION：
GAS
Testing
range
resolut
ion
Alarm
point
Working
temp
Working
himidity
Working
pressure
Resp
onse
time
Lifeti
me
(month
s)
Gas
interfere
nce
methane
0-100%LEL
1%LEL
25%LEL
-40℃~70℃
10~95%RH
86~106kpa
≤30
24
Flammable
liquid,
organic vapor
0-100%LEL
1%LEL
25%LEL
-20℃~50℃
10~95%RH
86~106kpa
≤30
24
CO
0-1000ppm
1ppm
80ppm
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
NO2、HCN 、
Ethylene
H2
0-1000ppm
1ppm
80ppm
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
CO、H2S、NO、
HCN、Ethylene
H2S
0-50ppm
0.1ppm
8ppm
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
SO2、CL2
CL2
0-20ppm
0.1ppm
8ppm
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
NO2
SO2
0-50ppm
0.1ppm
8ppm
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
H2S、HCN、HCL
O2
0-30%VOL
0.1%VOL
18%VOL
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
NH3
0-1000ppm
1ppm
80ppm
-10℃~40℃
10~95%RH
86~106kpa
≤60
12
H2S、SO2、CL2、
NO
NO2
0-20ppm
0.1ppm
8ppm
-20℃~50℃
10~95%RH
86~106kpa
≤60
12
CL2
HCL
0-20ppm
0.1ppm
8ppm
-20℃~45℃
10~95%RH
86~106kpa
≤60
12
HBr、H2S
PH3
0-20ppm
0.1ppm
8ppm
-20℃~45℃
10~95%RH
86~106kpa
≤60
12
SO2、SIH4

13
PRODUCT SIZE
MODELS
FCX、FCX/A, FCX/B
FCX/B2
SIZE：
190mm×130mm×75mm；

14
INSTALLATION：
longitudinal transverse wall mounting
The detector installation can adopt longitudinal, transverse, wall mounting, make sure the installation is
stable
The installation hole size is Φ8mm
The mounting hole spacing (see above the installation location of hole size
Make the sensor downwards fixed
After correcting line, the detector cover should be fixed so to achieve explosion-proof
requirement.

15
WIRE TERMINAL INSTRUCTION
Picture
INSTRUCTION
Three wires system 4-20mA
communications：
FCX
FCX/A
FCX/B
Two wires system 4-20mA
communications：
FCX/B2

16
INSTALLATION PRINCIPLES：
The effective coverage radius for combustible gas detector, indoor 7.5 meter, outdoor 15 meter. One detector can be
set within the effective coverage area.
The distance between toxic gas detector and the gas source: less than 2 meters outdoor, less than 1 meter indoor.
The detector installation position should be selected within one meater near to valve, pipe interface, air outlet,
and as closer as possible but no influence to other equipment.
Detectors should be installed in place that gas is easy to leak, easy flow of andd easy to stay, installation
location should be based on the measured gas density, on-site installation direction of flow, temperature and
other conditions to determine.
Detection of methane, hydrogen air fuel ratio of light and / or poisonous gas, its installation height should be
higher than the release source 0.5~2m, horizontal distance and the release of the source should be less than
5m.
Detection combustible gas or toxic gas which is heavier than air, the recommended installation height should be
higher than floor by 0.3～0.6m, and the horizontal distance to the gas source shoulbe be less than 5 meter. Too low
installation may lead water and too high will beyond its accumulation height.

17
When the molecular weight of detection gas is similar to natural air and easy to mix(like carbon monoxide),
the detector should be located within one meter higher or lower of the gas source. The detector should be
installed higher than the gas source when toxic gas is lighter than natural air, and otherwize lower than the gas
source.
TROUBLE SHOOTING：
Open the detector top cover and check if the power is normal, then make treatment as following:
Error
Reasons
Resolution
remark
“E1”
Sensor fault
1．Re-connect the sensor
2．Change sensor
“E3”
Memory chip fault
Send memory chip back to factory for reparing

18
SERVICE COMMITMENT：
We provide one year warranty from the date of leaving factory.（human factors and force majeure excepted）。
The liftime of the sensor in normal use: 2 years for catalytic combustion type sensor, 1 year for
electrochemistry type. The actual service life of the sensor is directly related to the work environment, the
environment is different, the service life of the sensor will change
To assure the reliability of the product, we suggest to make regular maintenance and adjustment.

SRS INTL Direct, Inc.
Web：www.srsintldirect.com
Add：41590 Winchester Rd, Ste 200-249, Temecula, CA. 92590
Tel：[phone]