DAP2102£GP1
BUILT-IN COMBUSTIBLE GAS ALARM SYSTEM 1 General Description
DAP2102£GP1 built-in combustible gas alarm system is an intelligent system. It
consists of DAP2102£GP1 alarm controller and DTQB-518 combustible gas sensor
with explosion prevention performance.
The Sensor is installed at area where the potentially explosive atmosphere may
be detected. It will send out a signal that is positive proportion with the concentration
of combustible gas while the sensor touches combustible gas in air. Alarm controller
will loop-show each detector¡¯s low-limited percent of L.E.L as well as send out
an audible/visual alarm and control signal that hints operator to either take
countermeasure or control relational automatic safe device while the value of
concentration gets to preset alarm value. It may ensure safe work and avoid explosive
accident.
2 Detected Gas
All types of Hydrocarbon combustible gas, including: hydrogen, natural gas, coal
gas, liquid gas, jet fuel, gasoline, alkyl, alkene genus, alkone ketone genus,
methanol, ethanol, aether genus, benzene genus etc.
3 Characteristic
1 Sensor can be remote mounted and demarcated (option install) installation flexibility
and safety
2 Warning, alarm & fault relays Provides local alarm capability
3 Calibration, calibration check, setup mode Simplifies operation and maintenance
4 Tray type , Modular, plug-in signal input cards System expandability, simplified
maintenance
5 Sensor adopts 3-wire connection system
6 Auto-checking
7 Key lock function
8 Sensor can resist 200ppm sulfureted hydrogen gas (must be noted on order form)
9 Locale concentration display on sensor (option install)
10 Sensor invalidation display on site (option install)
11 Alarm controller acts on high-limited and low-limited and send out a controlling
signal.
12 RS-485 micro-processor
13 Figure and light beam alarming level display
2 groups in hi-limited for each card, Long-time andcontinuous detecting
Communication
RS-485
5 Sensor structure dimension and installation:
The sensor consists of an aluminum alloy shell and stainless steel components
(the dimension of the hole for wire: M20¡Á1.5 or G1/2 inch).
6 Alarm controller structure and mounting hole dimension:
7 Connection sketch map:
W¡¢O¡¢B ends of sensor is connection point of the sensor.
I¡¢+24V- ends of sensor should be separately connected with I¡¢+24V- on back
panel of the alarm controller.
QB £ DAP2000 TRAY TYPE COMBUSTIBLE GAS ALARM SYSTEM 1 General Description
QB£DAP2000 tray type combustible gas alarm system is an intelligent alarm system,
consisting of QB£DAP2000 alarm controller and DTQB-518 combustible gas sensor
with explosion prevention performance.
The Sensor is installed at the area where combustible gas may be leaked. It will
send out a signal that is positive proportion with the concentration of combustible
gas while the sensor touches combustible gas in air. Alarm controller will loop-show
each detector's low-limited percent of L.E.L as well as send out an audible/visual
alarm and control signal that hints operator to either take countermeasure or
control relational automatic safe device while the value of concentration gets
to preset alarm value. It may ensure safe work and avoid explosive accident. 2 Detected Gas
All types of Hydrocarbon combustible gas, including: hydrogen, natural gas, city
coal gas, liquid gas, jet fuel, gasoline, alkyl, alkene genus, alkone ketone
genus, methanol, ethanol, aether genus, benzene genus etc.
3 Characteristic
14 Tray type , Modular, plug-in signal input cards System expandability, simplified
maintenance
15 Sensor adopts 3-wire connection system
16 Sensor can resist 200ppm sulfureted hydrogen gas (must be noted on order form)
17 Alarm controller acts on high-limited and low-limited and send out controlling
signal.
18 Enactment alarming value on site
19 Dark casket function
20 Auto-checking
21 Warning, alarm & fault relays Provides local alarm capability
22 Key lock function
23 Locale concentration display on sensor (option install)
24 Sensor can be remote mounted and demarcated (option install) installation
flexibility and safety
25 Sensor invalidation display on site (option install)
26 Calibration, calibration check, setup mode Simplifies operation and maintenance
2 sets in hi-limited, 8 sets in low-limited. Long-time and continuous detecting
5 Sensor structure dimension and install:
The sensor consists of an aluminum alloy shell and stainless steel components
(the dimension of the hole for wire: M20¡Á1.5 or G1/2 inch).
6 Alarm controller structure and mounting hole dimension:
7 Connection sketch map:
W¡¢O¡¢B ends of sensor is connection point of the sensor.
I¡¢+24V- ends of sensor should be separately connected with I¡¢+24V- on back
panel of the alarm controller.
QB-DAP2000 WALL MOUNTING COMBUSTIBLE GAS ALARM SYSTEM 1 General Description
QB£DAP2000 wall mounting combustible gas alarm system is an intelligent alarm
system, consisting of QB£DAP2000 alarm controller and DTQB-518 combustible gas
sensor with explosion prevention performance.
The Sensor is installed at the area where combustible gas may be leaked. The
sensor will send out a signal that is positive proportion with the concentration
of combustible gas while the sensor touches combustible gas in air. Alarm controller
will loop-show each detector¡¯s low-limited percent of L.E.L as well as send out
an audible/visual alarm and control signal that hints operator to either take
countermeasure or control relational automatic safe device while the value of
concentration gets to preset alarm value. It may ensure safe work and avoid explosive
accident. 2 Detected Gas
All types of Hydrocarbon combustible gas, including: hydrogen, natural gas, city
coal gas, liquid gas, jet fuel, gasoline, alkyl, alkene genus, alkone ketone
genus, methanol, ethanol, aether genus, benzene genus etc.
3 Characteristic
1 Sensor can resist 200ppm sulfureted hydrogen gas (must be noted on order
form)
2 Alarm controller acts on high-limited and low-limited and send out controlling
signal.
3 Enactment alarming value on site
4 Dark casket function
5 Auto-checking
6 Warning, alarm & fault relays Provides local alarm capability
7 Key lock function
8 Wall mounting for alarm controller
9 Sensor adopts 4-wire connection system
10 Locale concentration loop-display on sensor
hi-limited, low-limited. Long-term and continuous detecting
Alarm setting
2 grades alarm. Adjustable Setting point
5 Sensor structure dimension and install:
The sensor consists of an aluminum alloy shell and stainless steel components
(the dimension of the hole for wire: M20¡Á1.5 or G1/2 inch).
6 Alarm controller
structure and mounting hole dimension:
7 Connection sketch map:
W¡¢O¡¢B ends of sensor is connection point of the sensor.
U+¡¢U-¡¢+24V- ends of sensor should be separately connected with U+¡¢U-¡¢+24V-
ends board of the alarm controller.
QB-DAP2103-GB64 COMBUSTIBLE GAS ALARM SYSTEM
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡--With 4-wire BUS, LCD Concentration
Data Display 1 General Description
QB-DAP2103-GB64 combustible gas alarm system is a 4-wire BUS alarm system, consisting
of QB-DAP2103-GB64 alarm controller and QB-DAP31-12L combustible gas detector
with explosion prevention performance.
The detector is installed at area where the potentially explosive atmosphere
may be detected. The detector will send out a signal to alarm controller, which
is positive proportion with the concentration of combustible gas while the sensor
touches combustible gas in air. Alarm controller will loop-show each detector¡¯s
low-limited percent of L.E.L as well as send out an audible/visual alarm and
control signal that hints operator to either take countermeasure or control relational
automatic safe device while the value of concentration gets to preset alarm value.
It may ensure safe work and avoid explosive accident. 2 Detected Gas
All types of Hydrocarbon combustible gas, including: hydrogen, natural gas, city
coal gas, liquid gas, jet fuel, gasoline, alkyl, alkene genus, alkone ketone
genus, methanol, ethanol, aether genus, benzene genus etc.
3 Characteristic
11 Detector addresses can be coded on site
12 Sensor can resist 200ppm sulfureted hydrogen gas (must be noted on order
form)
13 LCD display concentration
14 RS-485 standard port
15 Tracking alarm record and fault alarming
16 Standby power
17 Explosion prevention output module, link action on site
18 4-wire BUS mounting
19 Insulator to divide detectors
4 Major Performance and Specifications
Detector
Detecting principle
catalytic combustion
Explosion prevention level
dIICT6
Working voltage
DC24V ¡À 15%
Working current
35mA
working temperature
-40 ¡æ ~ 70 ¡æ
Working humidity
¡Ü 95%RH
Detecting radius
5~ 6m
Calibration gas
CH4, i-C4H10
Alarm controller
Detecting range
0~100%LEL
Alarming register
yes
Concentration indication
LCD indicator
Alarm setting
2 alarming grades. Adjustable Setting point
High-limited alarming
50%LEL (Adjustable Setting)
Low- limited alarming
25%LEL (Adjustable Setting)
Indication error
¡Ü 3%LEL
Working temperature
0 ¡æ ~ 40 ¡æ
Working voltage
AC 220V
Response time
¡Ü 30S
Transmission distance
¡Ü 1Km
Carried detector number
16, 32, or 64 detectors
Contact output
16 groups Long-term and continuous detecting (contact capability is 220V, 2A )
Standby power supply
24V, 1.3AH
30V, 6AH(detector)
5 Sensor structure dimension and install:
The sensor consists of an aluminum alloy shell and stainless steel components
(the dimension of the hole for wire: M20¡Á1.5 or G1/2 inch).
6 Alarm controller structure and hole dimension:
7 Connection sketch map:
W¡¢O¡¢B ends of sensor is connection point of the sensor.
L+¡¢L-¡¢+24V- ends of detector should be connected with the end board of alarm
controller through BUS.
QB-DAP2103-GB64 ON-OFF COMBUSTIBLE GAS ALARM SYSTEM
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡--With BUS System 1. General Description
QB-DAP2103-GB64 combustible gas alarm system is a 4-wire BUS alarm system, consisting
of QB-DAP2103-GB64 alarm controller, DAP31-121 combustible gas detector and QB-DAP31-12L
on-off combustible gas detector with explosion prevention performance.
The detector is installed at area where the potentially explosive atmosphere
may be detected. The detector will send out a signal to alarm controller, which
is positive proportion with the concentration of combustible gas while the sensor
touches combustible gas in air. Alarm controller will send out an audible/visual
alarm and control signal that hints operator to either take countermeasure or
control relational automatic safe device while the value of concentration gets
to preset alarm value. It may ensure safe work and avoid explosive accident.
2. Detected Gas
All types of Hydrocarbon combustible gas, including: hydrogen, natural gas, city
coal gas, liquid gas, jet fuel, gasoline, alkyl, alkene genus, alkone ketone
genus, methanol, ethanol, aether genus, benzene genus etc.
3. Characteristic
20 4-wire BUS connection, 2 lines for power BUS, 2 lines for signal BUS.
21 Large capacity, enough applied to great engineering
22 Large screen LCD display, more information, friendship interface
23 Wall mounting
24 Tracking alarm record and fault alarming
25 Both non-preventive explosive and preventive explosive combustible gas detectors
in the system
26 Programming on site
4. Major Performance and Specifications
Detector
Detecting principle
catalytic combustion
Explosion prevention level
dIICT6
Working voltage
DC24V ¡À 15%
Working current
35mA
Working temperature
-40 ¡æ ~ 70 ¡æ
Working humidity
¡Ü 95%RH
Detecting radius
5 ~ 6m
Calibration gas
CH4, i-C4H10
Alarm controller
Detecting range
0~100%LEL
Alarming register
yes
Concentration indication
LCD indicator
Alarm setting
2 alarming grades. Adjustable Setting point
High-limited alarming
50%LEL (Adjustable Setting)
Low- limited alarming
25%LEL (Adjustable Setting)
Indication error
¡Ü 3%LEL
Working temperature
0 ¡æ ~ 40 ¡æ
Working voltage
AC 220V
Response time
¡Ü 30S
Transmission distance
¡Ü 1Km
Carried detector number
16, 32, or 64 detectors
Contact output
16 groups Long-time and continuous detecting (contact capability is 220V, 2A )
Standby power supply
24V, 1.3AH
30V, 6AH(detector)
5 Sensor structure dimension and install:
The sensor consists of an aluminum alloy shell and stainless steel components
(the dimension of the hole for wire: M20¡Á1.5 or G1/2 inch).
6 Alarm controller structure and hole dimension:
7 Connection sketch map:
W¡¢O¡¢B ends of sensor is connection point of the sensor.
L+¡¢L-¡¢+24V- ends of detector should be connected with the end board of alarm
controller through BUS.
