Onda UV-20 User manual

S P E C T R O P H O T O M E T E R
UV-20
USER’S MANUAL
P/N: 435103
REV. 1.0.0

I
Contents
Safety ............................................................. 1
Package Contents ...................................................1
Unpacking .......................................................... 1
Installation ....................................................... 2
1. Environment Required.................................................................................................. 2
2. Install Spectrophotometer......................................................................................2
Overview ........................................................... 2
Symbols ............................................................ 3
Main Specifications ................................................ 3
Description of Appearance and Keys .................................4
1. Appearance .........................................................................................................................4
2. Keypad...................................................................................................................................5
3. Description of Keys ....................................................................................................5
Functions .......................................................... 6
Getting Started ....................................................6
Important Guidelines ............................................... 7
General Operating ..................................................7
Measuring .......................................................... 8
1. Photometry .........................................................................................................................8
2. Quantitation.....................................................................................................................9
3. Utility...............................................................................................................................13
Troubleshooting ................................................... 15
Repair and Maintenance ............................................16
1. Daily Maintain..............................................................................................................16
2. Spare Parts Replacement ........................................................................................16

II
Warranty .......................................................... 20
Equipment Disposal ................................................ 21

1
Safety
Please follow the guidelines below, and read this manual in its entirety
to ensure safe operation of the unit.
We recommends against the use of UV-20 Spectrophotometer.
Do not open the device.
Disconnect the device from the mains supply before
carrying out maintenance work or changing the fuses.
The inside of the device is a high-voltage area Danger!
Do not use the device if it is damaged, especially if the
main power cable is in any way damaged or defective.
Repairs may only be carried out by the service technicians
from us and authorized contractual partners.
The device must be connected to a power outlet that has
a protective ground connection.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment
may be impaired.
Do not allow any liquid to enter into the device.
Do not operate the device in a hazardous location or
potentially explosive environment.
Package Contents
Description
Quantity
Spectrophotometer
1PC
10mm Glass Cuvette
4PCS
10mm Quartz Cuvette
2PCS
Power Cord
1PC
User’s Manual
1PC
Dust Cover
1PC
Unpacking
Open the package, according to carefully check the packaging packing list
items, if found inside the packaging are missing or damaged items please

2
contact us and authorized contractual partners.
Installation
1.Environment Required
To ensure the best performance, the following conditions are required:
The best working temperature range is 16—35℃and the humidity
is 45—80%.
Keep it as far as possible away from the strong magnetic or
electrical fields or any electrical device that may generate
high-frequency fields.
Set the unit up in an area that is free of dust, corrosive gases
and strong vibrations.
Remove any obstructions or materials that could hinder the flow
of air under and around the instrument.
The power requirement is 110±11V/60±1Hz or 220±22V/50±1Hz.
Use the appropriate power cord and plug into a grounded outlet.
If the local voltage is not stable, a voltage regulator is required.
Be away from direct sunlight.
2.Install Spectrophotometer
Placement
Place the instrument on the stable table carefully.
Install Printer (Printer is Optional Accessories)
Check to confirm instrument power switch is turned off, connect the
printer’s data cable to the instrument’s parallel port.
Link the Power Cord
Check to confirm instrument power switch is turned off, the power cord
plug into two separate power interface and power supply socket apparatus.
Overview
UV-20 Spectrophotometer is an electrical measure instrument which is
widely used in the laboratories.
Use Frequency: Intermittence
Excessive Voltage(Current): No
Pollution Class: Class 1

3
Symbols
The following chart is an illustrated glossary of the symbols that are
used in this manual.
Caution, Danger!
Caution, High Voltage!
Caution, Hot!
Ground
Fuse
Recycle, this instrument will be called back by the
appointed Electrical Treatment Department or by the
original Manufacturer when wasted.
Main Specifications
Optical System Single beam
Wavelength Range 200—1000nm
Wavelength Accuracy ±2nm
Wavelength Repeatability 0.8nm
Photometric Range -0.3—3A, 0—200%T
Photometric Accuracy ±0.5%T
Photometric Repeatability 0.3%T
Spectral Bandwidth 4nm
Stray Light 0.3%T@220nm&360nm
Stability ±0.002A/h@500nm
Work Mode Photometry, Quantitation
Interface USB, Parallel(printer)
Power Requirement AC 110/220V, 50/60Hz

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Dimensions 490x360x210
Weight 14kg
Work Environment 15—35℃, 15—70% relative humidity
Store Environment -10—50℃, 15—70% relative humidity
Description of Appearance and Keys
1.Appearance
Front View
1
2
3
4
Back View
510
9
8
7
6
11
1LCD Display
2Keypad
3Lid of Sample Room
4Rod
5LCD Contrast Adjust
6Printer port
7USB port
8Cover of Fan
9Power Socket
10 Power Switch
11 Cover of Cooling Vents

5
2.Keypad
3.Description of Keys
SET
SET Key: Set Parameters
GOTO λ
GOTO ʎKey: Set Wavelength
ZERO
ZERO Key: Blank

6
PRINT
PRINT Key: Print measuring result
SELECT
Function Key: Functions according to the screen
▲
,
▲
UP, DOWN Keys: Scroll menu/data and set Y scale
Functions
Photometry
Display results as Abs, %T or Energy.
Quantitation
Use a Standard Sample to establish Standard Curve.
Getting Started
The following chart describes the basic operation of the instrument.
Turn On and Self-check
Switch on the power. Then the
instrument begins to self-check and 20
minutes’ warm up. Self-check includes
the following steps: Turn on lamps →
Check Sensor → Initialize AD → System
position → Get Dark Current → Warm up.
Sel f - t est . . .
War m up 20 mi nut es,
Any key t o ski p