Y?lmaz So?utma COOL-US CU-935A User manual

User's Manual – COOL-US
Professional Anemometer
Please read this user's manual thoroughly before using this unit
and keep it properly for your future reference.

Contents
1. Safety ............................................................ 1
2. General Description ....................................... 2
3.Features .......................................................... 2
4.Specifications ................................................. 3
5.Meter Description ........................................... 5
6.LCD Display Description ............................... 6
7. Operating Instructions ................................... 7
8. Notes ........................................................... 11
9. Accessories .................................................. 12

1
1. Safety
Read the following safety information carefully before
attempting to operate or service the meter.
Use the meter only as specified in this manual; otherwise, the
protection provided by the meter may be impaired.
◆ Environment conditions:
RH≤90％（Non-Condensation）
Operating Temperature: -10℃ ～ 60℃
◆ Maintenance
Repairs or servicing not covered in this manual should only
be performed by qualified personnel.
Wipe the unit with a dry soft cloth. Do not use abrasives or
solvents on this instrument.
◆ Safety Symbol
Comply with EMC

2
2. General Description
The Anemometer is designed for measuring air velocity, air flow
and temperature. Super large easy-reading backlit LCD displays
air velocity, temperature and air velocity level at the same time.
Use the strict tested meter only as specified in this manual.
3.Features
Circuit: based on fast and high accurate MCU design
High accuracy NTC resistance for air temperature measuring
Super large backlit LCD displays air velocity, temperature and
air velocity level at the same time for easy-reading
Air velocity level indication
Low voltage battery indication
MAX/MIN/AVG/HOLD function

3
4.Specifications
Air Velocity Range
-30℃～60℃(-22℉～140℉)
0.4～30 m/s 0.8～58.3 Knots
0.9～67 MPH 78.7～5905 ft/min
1.4～108 Km/h
Air Temp. Accuracy ±1.5℃(±2.7℉)
Air Velocity. Accuracy ±3%±0.1
Resolution 0.1
Sampling rate 1 time per second
Operating temperature -20℃～60℃(-4℉～140℉)
Operating humidity <90%RH（Non-condensation）
Storage temperature -30℃～60℃(-22℉～140℉)
Storage humidity <80%RH
Air velocity level indication level 0-16 with analog bar-graph
Measurement average average reading of the latest 10 records
Maximum / Minimum MAX/MIN
Reading freezing HOLD
Area set 0.001 ～9999 m2（0.001～ 9999ft2）
Power Supply one 9V battery with type of 006P,NEDA1604
or IEC6F22

4
Auto power off Automatically power off after approx. 15
minutes of inactivity
Display 4 digits LCD display
Battery life at least 30 hours
Dimension(L*W*H) 158*62*32mm
Weight 292g

5
5.Meter Description
①Air Velocity Sensor ②LCD display
③Temperature Units Selection ④MAX/MIN/HOLD Button
⑤Velocity Units Selection ⑥AVG/Backlight Button
⑦Power ON/OFF ⑧Battery cover

6
6.LCD Display Description
①Timing shutdown Icon ②AVG Icon
③MAX Icon ④MIN Icon
⑤HOLD Icon ⑥Battery Icon
⑦Temperature unit
⑧Air Velocity Units: m/s，km/h，ft/min，
knots (nautical miles per hour),Mph
⑨Air Velocity readings
⑩×100 (100times for air volume reading)
⑪Area units:㎡, ft2
⑫Air flow units: CMM ( cubic meter per minute),
CFM(cubic feet per minute)
⑬Air Velocity level indication
⑭Analog bar-graph indication for air velocity level
⑮Measuring temperature readings

7
7. Operating Instructions
Open battery cover and install a 9-volt battery in the battery
compartment.
Power ON：Turn the meter on by pressing " " button for 1
second until the LCD is lighted, then release the button.
Power OFF ：Turn the meter off by pressing and holding
" " button for approx. 3 seconds until the LCD is switched
off, then release the button.
“ ”icon,When the low battery icon " " appears, replace
the meter's battery.
(5) Auto power off icon, the meter will automatically turn
off after approx. 15 minutes of inactivity.
(6) Backlit After turning the meter on, momentarily press " "
button, the backlit will be on/off, it will automatically turn off
after approx. 30 seconds of inactivity.
(7)Units selection: After enter measuring mode, press
“ button to select desired units.
(8) HOLD: Press “ ” button one time, “HOLD” icon will
appear on LCD, which indicates the reading is freezed. Press the

8
button again to exit HOLD mode.
(9) MAX/MIN: Press " " button one time until "MAX"
icon appears on the LCD to view the current MAX reading;
press the button again, "MIN" icon will appear to view the
current MIN reading. To exit the MAX/MIN mode, press the
" " button again.
(10) AVG Button: Press “ ” button one time, ‘AVG’ will
appear on LCD, the meter enter to average measuring mode, the
average reading of the latest 10 records will be displayed on the
LCD.
(11)Temperature Units selection: Press" "button to select ℃
or ℉.
(12) Area Set
Press “ ” button and then power the meter on, release
‘ ’ button when LCD displays, at the time the display will
show as following(Note: the area units can be setted by press
“ ”button for 3seconds)

9
：
Set the area units as square centimeter (fig. as above)
Press“ ”to increase the data，press“ ”to decrease the
date
Set the area units as square meter (fig. as above)
Press“ ”to increase the data，press“ ”to decrease the
date

10
Set the area units as square feet (fig. as above)
Press“ ”to increase the data，press“ ”to decrease the
date
Press“ ”to times increase the data，press“ ”to times
decrease the data
Air volume
Air volume display x 100 the actual volume=displayed data
*100

11
8. Notes
This meter has already been calibrated before delivery. Do not
revise the calibration parameters without professional personnel
and device. The recommended calibration period is one year.
Repairs or servicing not covered in this manual should only be
performed by qualified personnel.
Do not use it in the area with high temperature of humidity.
Wipe the unit with a dry soft cloth. Do not use abrasives or
solvents on this instruments.
Remove the battery when the meter is to be stored for long
periods of time to avoid battery leakage.

12
9. Accessories
①Sensor
②User's manual
③9V battery