Unit UT383 User manual

P/N:l10401105962X
UNI-T
UT383
Mini Light Meters
Operating Instruction
1. Introduction
UT383 is a stable, safe, reliable mini digital light meter,
widely used in lightening enterprises, agriculture and animal
husbandry, mining enterprises, laboratory, office, household,
street lights construction and others.
This operating manual includes relevant safety information
and warnings. Please read this manual carefully and observe
all the cautions strictly.
A Warning:
Before using the product, please read the operation safety
rules carefully.
2. Out of the Box
Open the packing box and take out the meter. Please check
carefully if any items are missing or damaged.
1. Main Unit-1
2. Blister --1
3. Operating manual-1
3. Operation Safety
1. P lease check the meter and the accessories before using
and beware of any damage or abnormal phenomenon. If
you find the case is damaged or the LCD shows nothing,
or you consider that the meter could not work properly
anymore, please stop using it.
2,Observe the operating instructions while measuring.
3. Do not open the meter at will or change internal wiring to
avoid damages to the meter.
4. W hen the LCD displays “ca”, replace the battery timely.
Remove the battery if the meter is not used for a long time.
5. D o not store or use the meter in high temperature, high
humidity, flammable, combustible, or strong electromagnetic
environment.
6. P lease use soft cloth and neutral detergent to clean the
case for maintenance. Do not use grinding agent and
solvent to avoid case corrosion and damaging the meter.
4. P r oduct Outlook
1. Illumination transducer
2. Meter case
3. LCD display
4. Function keys
® © © ©
5. D i s p l a y Interface
1
Maximum measurement
5
Foot candle
2
Minimum measurement
6
Lux
3
Data hold
7
Value*10 or value*100
4
Low battery
8
Illumination value
6. K ey Function and Setup
1. ON/OFF:
Short press once to start up; short press again to power
off.
Note: Product's auto power off feature can be disabled:
Press and hold “HOLD” and then press “ON/OFF” key to
enable/disable auto power off, LCD will display “APO OFF”
to indicate status.
2. LUX/FC:
Unit conversion key: Short press this key to select Lux or
Foot candles.
3. MAX/MIN:
Pressing this key can select maximum, minimum or normal
value measurement; select maximum and the meter will
always show the maximum reading; select minimum and
the meter will always show the minimum reading.
4. HOLD/BL:
HOLD: Short press this key to hold measurement; short
press this key again to exit data hold and continue normal
measurement.
BL: Long press this key to turn on backlight; long press
this key again to turn off backlight.

7. Technical Specifications
1. I llumination
Function
Range
Resolution
Accuracy
Description
Illumination
0-9999 Lux
1 Lux
±(4%rdg + 8dgts)
(regulate in the standard of 2856K
color temperature flat lamp)
Note: 1FC=10.76 Lux
^10000 Lux
10 Lux
±(5%rdg + 10dgts)
Range
0-199,999 Lux
Auto-ranging
Sampling Time
0.5s
Refresh sampling in 0.5s
Overload Indication
OL
Shows “OL”
MAX/M IN Measurement
MAX/MIN Shows “MAX/MIN”
Data Hold
HOLD
Shows “HOLD”
Backlight
BL
Manually on and off
Auto Power Off
5mins
Automatically power off after 5mins
without operation
Low Battery
3.0-3.5V
Shows low battery prompt when
power is 3.0-3.5V
2. General Type
a. LCD: 4 digits LCD display. The max display is 9999
b. Overload indication: When illumination is over
199,999 Lux, “OL” will be displayed
c. Battery low power display: Prompt “<a”. New battery
should be replaced in time
d. Sampling rate: 2/s
e. Sensor type: Silicon photocell
f. Impact strength: Can withstand the impact of landing
from 1 meter height
g. Battery requirement: 1.5V batteries (AAA) *3
h. Product size: 160><50x28mm
i. Weight: 118g
3. Environment Specification
a. Indoor use
b. Altitude height: 2000m
c. Safety: EN61326-1
d. Pollution level: 2
e. Working temperature and humidity:
0°C~40°C (not greater than 80%RH)
40°C~50°C (not greater than 45%RH)
f. Storage temperature and humidity:
-20°C-60°C (not greater than 75%RH)
4. Electrical Specifications
a. Accuracy: 0~9999Lux, ±(4%rdg + 8dgts)
^ 10OOOLux, ±(5%rdg + 8dgts)
b. Environment temperature: 23°C±3°C
c. Environment humidity: ^80%RH
5. General Maintenance
A Warning: please do not open the case of meter to
avoid affecting device accuracy or damage to the
meter.
a. Maintenance and service of the meter should be
accomplished by professional personnel or designated
maintenance department.
b. Clean the case by dry cloth periodically, detergent
with abrasive or solvent composition shall not be used.
6. B a ttery Installation and Replacement
a. The meter uses 3 pieces of AAA 1.5V batteries.
Please see figure below for steps of battery installation
and replacement.
Manufacturer:
Uni-Trend Technology(China) Limited
No 6, Gong Ye Bei 1st Road
Songshan Lake National High-Tech Industrial
Development Zone, Dongguan City
Guangdong Province
China
Postal Code:523 808
Headquarters:
Uni-Trend Group Limited
Rm901, 9/F, Nanyang Plaza
57 Hung To Road
Kwun Tong
Kowloon, Hong Kong
Tel: [phone]
Fax: [phone]
Email: [email protected]
http://www.uni-trend.com