Bosean Electronic Technology K-600 User manual

K-600
Portable Multi-gas Detector
with Built-in Pump
User Manual
Ver：BSA20180501001
Bosean Electronic Technology Co.,Ltd
ISO9001-2008

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Brief Introduction
K-600 portable multi-gas detector with built-in pump is a new
intelligent gas detector, which adopts an advanced integrated
circuit, with standard intelligent level design technology, and
proprietary digital analog hybrid communication technology. The
detector is of excellent sensitivity and repeatability, which makes it
very easy to use and maintain. Thus greatly meets the safety
requirements of industrial sites with high reliability. The detector is
made of high-strength engineering plastics, compound non-slip
rubber, which is of high strength and good hand feeling. what’s
more, the detector is water-proof, dust-proof and explosion-proof.
It is widely used in petroleum, chemical, environmental, metallurgy,
refining, gas transmission and distribution, biochemical medicine,
agricultural and other industries.
1. Main features
*Gas pump sampling method and high-sensitivity sensor, with
high sensitivity and repeatability.
* 32-bit built-in MCU, high reliability and self-adaptation ability.
* Full functions, easy operation.
* CSTN colorful LCD, more intuitionistic, abundant and clear
indication.
* Compact design, easy carrying.
* High strength engineering plastics and compound anti-slippery
rubber; high strength, water-proof, dust-proof and explosion-proof.
*1200pcs data records, can be contacted with computer via
software. Can print the data records, can store data records, can
make the data analysis.
*Gas curve display.

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2. Structure & Function
2.1 Appearance
2.2 Detector structure: the main shell, circuit boards, batteries,
display, sensors, chargers of the components.
2.3 Principle: Electrochemical or Catalytic or PID’s or infrared
sensor or VOC’s sensor.
3. Technical Data
Target Gas
Range
Low alarm
High alarm
Resolution
Ex
0～100%LEL
20%LEL
50%LEL
1%LEL
H2S
0～100ppm
10ppm
35ppm
1ppm
CO
0～1000ppm
50ppm
150ppm
1ppm
O2
0～30%vol
19.5%vol
23.5%vol
0.1%vol
Other gases needed, please contact supplier
1
Built-in pump gas inlet
2
LED
3
Button
4
Buzzer
5
LCD screen

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Gas sampling method: Gas pump sampling
Detecting gas: Combustible gas, H2S, CO, O2
Accuracy: ≤±5% F.S.
Response Time: ≤30s
Indication: LCD displays real-time and system status;
LED, audio and vibration alert for gas leakage, fault and low
voltage, pump working state.
Working environment: -20℃～50℃,＜95%RH (no dew)
Power Source: DC3.7V Li-on battery, 3200mAh
Charging time: 6h~8h
Working time: ≥ 8h continuously (without alarming)
Gas Sensor Life: 2 years
Explosion-proof grade: Ex ib IIB T4 Gb
Protection Grade: IP65
Weight: Appr. 400g (with battery)
Dimensions: 130mm×67mm×30mm(L × W × H)
4. Operation & Function
4.1 Turn on self check and preheating process
Press the button for 4s and then release it. the LCD
screen of the detector is turned on and the welcome interface is
displayed. The detector automatically performs self-test of the
sound, light and vibration alarm signals, displays the system
information and performs the preheating countdown. The above
information can be used to confirm the integrity of the detector
performance.
4.1.1 After the detector is warmed up and
enters the power-on state, the normal detection
state of the detector is shown in Figure 1. (The
display mode varies according to the position of
the sensor, and the gas in the figure represents
methane.) Fig.1

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4.2 Turn off
Under the detector is in the normal detection state, press
button, the LCD screen will prompt the user to shut down the
interface as shown in Figure 2. The user selects whether to shut
down through button. If select sure, the screen no longer
displays any information, and the detector enters Off state.
Fig. 2
4.3 Button function
Detector in the normal detection state as shown in Figure 3:
Fig. 3
Press any key to turn on the backlight (user can set the backlight
time)
Press to enter the function menu;
Press the button to turn the gas sampling pump on or off.
Press to enter the gas concentration curve display interface;
meanwhile press to view the concentration curve of different
gases.
Shut down?
BACK SURE

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4.3.1when gas detector detects the gas less than the low alarm (
Mark: for oxygen, between the low alarm and high alarm value), g
as detector is under normal detecting state, no alarm at this time.
4.3.2 When the detected gas concentration is higher than low
alarm value and lower than the high alarm value (Note: When the
oxygen concentration is lower than the low alarm value), the
detector is in a low alarm state. The buzzer emits an alarm sound
of “beep,beep...”every 0.5s, and the red alarm light flashes
synchronously. At the same time, the gas concentration value on
the screen turns yellow and the backlight and vibrator are also
turned on remind of low alarm; press button to cancel the
audible alarm, but still display alarm information. The buzzer will
resume ringing until the new alarm is triggered, and the alarm light
and vibrator will resume operation. When the gas concentration
value detected by the detector returns below the low limit alarm
value, the gas concentration value turns green and the alarm
signal is automatically released. When the alarm is detected, the
detector is shown in Figure 4.
Fig.4
4.3.3 When the detected gas concentration is higher than the set
high alarm value, the detector is in the high alarm state, at this

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time the buzzer emits “beep,beep,…every 0.25s”. the red
indicator light flashes synchronously, and the color of the gas
concentration value changes to red on the screen. The backlight
and the vibrator also open at the same time, indicating the high
alarm; long press the button to release the audible alarm. but
there is still an alarm message. The buzzer will resume ringing
until the new alarm is triggered, and the alarm light and vibrator
will resume operation. When the gas concentration value detected
by the detector returns below the low alarm value, the gas
concentration value turns green and the alarm signal is
automatically released. When the alarming, the detector is shown
in Figure 5.
Fig 5
4.3.4 When the detected gas concentration is higher than the test
range, the buzzer of the detector will beep normally, the LCD
screen will be on constantly, the vibrator will be normally open, and
“HHHH” will be displayed on the screen, indicating over-range. at
that time, you can press the button to release the audible
alarm.
4.3.5 Display time, gas sampling pump flag , buzzer indication
(signal when no mute is , when mute is ), the
corresponding concentration information display of different gas

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types, battery power, current date.
Note: The above alarm sounds can be manually cleared by
pressing the key. After clearing, the alarm information is still
displayed normally; if the detector triggers the alarm again, the
corresponding alarm sound information can be sent again.
4.4 Use and set functions
The detector has a total of alarm record viewing function, gas
concentration curve display, setting gas parameters, calibration,
zero calibration, language setting, information viewing, time setting,
etc. in the normal detection interface, press button to enter the
function menu, as shown in Figure 6. Then press button
to enter the function selection. When the cursor moves to the
return type on the function selection interface, continue to
return to the normal monitoring interface.
Fig.6
Note: The following menus and function keys exit to return to the
monitoring interface. This operation is no longer repeated.
4.4.1 Alarm Record Gas curve display
1. Alarm record function:
Press the button in the normal detection main interface to enter
the function menu, select the , press button to enter the

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alarm record interface, the record content includes the type of
alarm sensor, enter the corresponding sensor to
display the alarm value, alarm time, as shown in
Figure 7: This function can view the gas alarm
history.
Fig.7
The maximum alarm record is up to 1200 groups.
2. Curve display function:
Press in the normal detection main interface to enter the curve
display interface.
Then press button to view the gas concentration curve of each
channel sensor. Each channel sensor has a curved display. As
shown in Figure 9:
Oxygen as an example:
Fig.8
06/08
21:18
O2 20.9% Low 19.5 % High 23.5%
Description
The abscissa X axis is the time,
the current record within 10s of
the curve
The vertical axis Y is the sensor
value, data of the sensor can be
seen from the Y axis
Note: the axis and the data is green, the data curve is blue, the
low alarm line is yellow, high alarm line is red.

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4.4.2 Detector menu settings
In the normal detection mode, press to enter the menu, then
press to select the shut down,setting,alarm point, alarm record
calibration zero, calibration, time setting and system reset. These
function menus can be displayed cyclically and can be selected by
cursor movement.
The menu function is as follows:
Description
Setting content
Main
interface
Press to move the cursor to the return
function, press to return to the main interface.
(The cursor moves and selects the entry according to
the above method, and will not be described later)
Shut down
Press to move the cursor to the return
function, press to enter the shutdown selection
interface.
System
Settings
Enter the system settings interface to set the detector
channel, delete alarm records, view system
information, language settings, backlight settings,
and air pump settings.
Alarm
point
Set the low and high value
Alarm
record
Alarm record information of the corresponding
channel gas
Gas Zero
Enter the zero calibration interface to zero the four
sensors.