isweek AR820 Operation Manual

Formaldehyde Gas Detector
AR820
Operation Manual
Version NO.AR820-0-1
2. LCD Screen
① Value display area
② Chemical name
③ Formaldehyde unit
④ Formaldehyde unit
⑤ Temperature value display area
⑥ Temperature unit
⑦ Humidity value display area
⑧ Humidity unit
⑨ Concentration within safety range
⑩ Concentration exceeds safety range
Concentration reaches danger range
⑩
11
Battery level PROMPT
⑩
12
Back-light on symbol
⑩
13
Auto power-off symbol
⑩
14
⑩ Alarm PROMPT symbol
15
Introduction
AR820 household formaldehyde gas detector,
which adopts imported advanced sensors,
are of excellent performance, high accuracy
and stability, and are able to implement
continuous real-time detection. This type of
detectors can be applied in household, offices
and any other dwellings.
I. Product Specifications
1.Technical Specs
Technical Specs
Measurement range
Resolution
Accuracy
Temp. Measuring Range
Temp. resolution
Temp. accuracy
Humidity Measuring Range
Humidity resolution
Humidity accuracy
2. General Specs
General Specs
Sensors Electrochemical sensors
Detection method Auto
Display LCD screen
Power supply 3 AA batteries
Operating Temp. 0℃ ～50℃/32℉～122℉
Storage Temp. ﹣20～60℃/﹣4～140℉
1
Ⅲ. User instruction
1.Turn-on or turn-off
① Turn-on: open the battery cover at the
back, put 3 AA batteries into it, and then
push" "button to turn the unit up. LC whole
display for 1s, and then enters a 10s process
of system stabilizing. After that the LCD will be
like graph 1.
Measured value of
formaldehyde
Measured value of
temperature
Measured value of
humidity
② Cancel auto power-off: when the unit is
operating normally, touch and hold" " button，
until the "auto power-off" symbol disappears. It
shows that the auto power-off function is
canceled. See graph 2.
No "auto power-off"
symbol
Ⅱ. Product Drawings
1.Complete Machine View
0～5.0 PPM
0.01 PPM
±5%
0℃～ 40℃/
32℉～104℉
0.1℃/0.1℉
±2℃
10～ 95%RH
0.1%RH
±5%RH
① LCD display
② Buttons
③ Main unit housing
④ Base
⑤ Base nameplate
2
Auto power-off: When the unit's auto
③
power-off function is canceled, touch and hold
" "button，until the "auto power-off" symbol
is displayed on LCD. It shows that the unit will
automatically shut down after 30min of
non-operation. See graph 3.
"Auto power-off"
symbol
④
Manual power-off: when the unit is
operating normally, touch and hold "
off the unit.
2 .Turn on or turn off back-light
When the unit is operating normally, press " "
button to turn on or turn off the back-light. See
graph 4.
⑥ Radiator grille
⑦ Position of probe
⑧ Battery cover
⑨ Fixed screw holes
⑩ External power
3
" to turn
"Back-light on" symbol