RS485 communications:
Please use the 4 Pole 3.5mm headphone plug. The headphone plug contacts are defined as below:
For long-distance communication, it is necessary to use a dedicated isolated line to ensure communication
quality. The wiring method is as below:
Power off:
Switch the Power Key (
○
A
) off.
Note: When the device is charged with USB, it cannot be turned off.
Calibration:
(1) Single-point calibration
At the same time, long press “
▲
(
○
G
)“ and “
▼
(
○
J
)“ key,
CAL
is displayed on the screen. Press the “
M1
” key
(
○
F
) to select the sensor that needs to be calibrated. Press the “
▲
(
○
G
)/
▼
(
○
J
)” key to edit the parameters,
and then press the “
Enter
” key (
○
I
) to proceed the next setting. Zone1 displays the unadjusted raw value;
Zone2 displays the adjusted value, and it is also the value of returning to the main screen;
Zone1-Zone2=adjustment amount. After finishing the setting, press and hold the “
M1
” key (
○
F
) to return to the
main screen.
(2) Two-point calibration
At the same time, long press “
▲
(
○
G
)“ and “
▼
(
○
J
)“ key,
CAL
is displayed on the screen. And then long press
the “
M2
” key (
○
H
),
CAL L
is displayed on the screen. Next, press the “
M1
” key (
○
F
) to select the sensor that
needs to be calibrated (CO
2
CO
VOC
PM2.5
RH
AMB) and the corresponding unit will blink. Press
"
▲
(
○
G
)/
▼
(
○
J
)" key to adjust the value of the standard gas concentration. Press “
Enter
“ key (
○
I
) to switch
CAL H
(High gas concentration calibration)/
CAL L
(low gas concentration calibration). The ppm unit is not
flashing for a moment, indicating that the calibration value has been stored. Long press the “
M2
” key (
○
H
) for
a calibration calculation. At the same time, the screen displays the calibration reading to confirm the accuracy.
Short press the “
M1
” key (
○
F
) to set the next gas calibration, or long press the “
M1
” key (
○
F
) to return to the
main screen.
Clear Two-point calibration:
Set the same calibration value for
CAL L
and
CAL H
, and then proceed the calculation. After the calibration is
completed, the original calibration value is cleared.
Rechargeable Batteries
Battery message:
‘Battery OK’:
Measurements are possible
‘Battery Low’:
The battery needs to be recharged,
measurements are still possible
‘Battery Exhausted’:
Measurements are not possible
Battery installation:
This device is supplied with Li-ion 18650 3.7V rechargeable battery *3 pcs.
Please confirm whether bat polarity are Li ion18650 positive bump specification and install batteries in
the correct polarity. If the battery polarity is reversed, the capacity will be insufficient and the battery life will be
shortened.
Battery charging:
The charge lamp (
○
E
) lights up while charging; the charge lamp (
○
E
) goes off when charging is completed.
(5V/1A USB adapter charger)
Note: During battery charging, the temperature of the device will rise by 5°C~10°C. At this time, the
measurements of temperature and humidity will be affected by temperature rise. Cause an impact on
the accuracy of temperature when charging, please use a fan to blow toward the temperature sensor
(
○
C
) directly in order to get a compensated balance of temperature and humidity between temperature
sensor and surrounding area.
Safety Instructions
Warning:
Your safety is very important to us. To ensure to use the device correctly and safely, we would like
to draw your attention to read the warning and entire User Manual before using the device. These
are important safety information and should be observed at all times.
1. Please handle the device lightly, do not subject the device to impact or shock.
2. Do not immerse the device in water. Water can cause electric shock, fire or malfunction which may result in
damage.
3. Do not keep the device under the hot and moisture environment. Keep the device away from the heat
source or near water.
4. Please use a standard USB power supply (such as PC's USB port, universal AC adapter with USB port).
Improper power supply can cause serious damage to the device, or result in injury or death to the user.
Product Care
To ensure you receive the maximum benefit from using this device, please observe the follow guidelines.
1.
The maximum capacity of the SD card is 16G.
2.
During battery charging, the temperature of the device rises. The temperature and humidity sensors are
affected. At this time, measurements are only for reference. After batteries are fully charged and the device
cools down, measurements are reliable.
3.
Repair
–
Do not attempt to repair the device or modify the circuitry by yourself. Please contact with the
local dealer or a qualified repairman if the device needs servicing.
4.
Caution –
The CO and NH3 sensors must be replaced every 3 years.
5.
Cleaning –
Disconnect the power before clean. Use a damp cloth, do not use the liquid cleaning agent,
such as benzene, thinner or aerosols.
6.
Maintenance
–
Recommend that the user conducts a comprehensive test and calibration every year to
ensure the normal operation of the device.
Specifications
Measurement
Range
Accuracy Display
Resolution
CO
2
0~9,999 ppm
(5,001~9,999 ppm
over range)
±50 ppm or 5% of reading,
whichever is greater (0~5,000ppm)
1 ppm
CO
0~1,000 ppm
±5%~±10%
1 ppm
VOC
0~996 ppb
±30%
1 ppb
PM2.5
PM10
999 ug/m
3
±15% or ±15
μ
g/m³, whichever is
greater
1 ug/m
3
RH
0~100%
±2%@25°C (20% RH~80% RH)
0.01%
Temperature
0
°
C~50
°
C ±1
°
C 0.01
°
C
Barometer
50 ~110 Kpa
±0.4 kpa
0.1 mmHg
Operating
Conditions
0~40°C(32°F~104°F),0~95%RH, non-condensing, with lithium-ion batteries
0~50°C(32~122°F), 0~95%RH, non-condensing, without lithium-ion batteries
Storage Temp.
-20~60°C(-4~140°F), 0~85%RH, non-condensing, without lithium-ion batteries
Power Supply
Rechargeable Battery : Li-ion 18650 3.7V *3 (batteries not included)
AC Adapter : 5V±5% >1A, 100~240 VAC, 50/60 Hz
Storage
Capacity
depend on SD card capacity (max.16G SD card)
Comm.
Interface
RS485 ModBus BR19200
、
N
、
8
、
1
Alarm Volume
80db±5%@10cm
Weight
286.5g (without batteries)
Dimension
204.5x91.7x49.6 mm (8.1x3.6x2 inch)
EMC/RFI:
Readings may be affected if the unit is operated within radio frequency electromagnetic field
strength of approximately 3 volts per meter, but the performance of the instrument will not be
permanently affected.
Installation Instruction
1. You can put ZG9 on the table (please pull out the Housing Stand
○
P
) or hang it on the wall.
2. Please note the following when hanging it on the wall. Choose a suitable location to install ZG9, fix
a screw
to the wall.
Package contents
Handheld multi gas detector
Manual
USB 1.5M cable
Radiant Innovation Inc. Http://www.ZyAura.com
1F, No.3, Industrial East 9
th
Road, Science-Based Industrial Park, HsinChu,
Taiwan 300.
Ref.No.
：
092018
