Bante Instruments WXG-4 User manual

WXG-4 Manual Polarimeter
USER MANUAL
Bante Instruments Inc.

1 IWXG-4
Introduction
Thank you for selecting the WXG-4 manual polarimeter. This manual
provides a step-by-step guide to help you operate this instrument,
please carefully read the following instructions before use.
Environmental Conditions
Before unpacking, ensure that current environmental conditions meet
the following requirements.
•Relative humidity is less than 80%
•Ambient temperature between 0° C (32° F) and 40° C (104°F)
•No ambient light interference
•No corrosive gas exists
Packing List
The following list describes all components of the polarimeter. If any
items are missing or damaged, contact the supplier immediately.
•Polarimeter •Sealing rings
•Test tubes 100 and 200 mm
Prior to Use
Before connecting the power supply, make sure that the local mains
power voltage matches the polarimeter requirements.
1.1 Close the light shield lid. Press the power switch to the ON
position, the sodium lamp will gradually light up.
1.2 Wait for the light source to stabilize, rotate the focus knob until
the visual field becomes legible.
1.3 Rotate the vernier knob makes the vernier scale aim at zero
position.
Recording the Reference Point
2.1 Place an empty test tube into the sample chamber.
2.2 Rotate vernier knob until the visual field appears the uniform
brightness. Record the measured value.
Filling the Sample Solution
3.1 Take out the test tube from sample chamber. Unscrew the metal
cap, remove the sealing ring and glass disc.
3.2 Rinse the test tube thoroughly with distilled water.
3.3 Fill the sample solution into the test tube, screw on the cap, wipe
away the water drops on glass disc.
3.4 If necessary, collect all air bubbles into the bubble trap.
Focus knob
Vernier knob

WXG-4 I2
Measurement
1. Open the light shield lid and place the test tube into the sample
chamber. Note, the bubble trap is upward.
2. Close the lid, clockwise or anticlockwise rotate vernier knob until
the visual field appears the uniform brightness. Record the
measured value.
3. Repeat the above measurements twice and calculate the average
of measured values.
Calculation
If the measured values are positive angle (dextrorotatory substance),
minus the value of the reference point shall be the actual measured
value of the sample.
If the measured values are negative angle (levorotatory substance),
minus the 180° shall be the actual value of the sample.
Determination of the Concentration
If you need to determine the purity, concentration or proportion of the
sample, please using the formula below.
α= [α] LC
Where:
α= Optical rotation
[α] = Specific rotation
L = Tube length (dm)
C = Concentration (g/L)
Replacing the Sodium Lamp
Before replacing the sodium lamp, be sure to disconnect the power
plug from the wall outlet.
1. Wait for the sodium lamp to cool down, remove the lamp cover.
2. Pull the sodium lamp from the socket and insert a new one.
3. Replace the lamp cover again in such a way that the window
point in the direction of the polarizer.
Appendix
Optional Accessories
Order Code
Description
LAMP 589
Sodium lamp, 4-pin, wavelength 589 nm
POLTUBE 100
Test tube, 100 (L) × 27 (Dia.) mm
POLTUBE 200
Test tube, 200 (L) × 27 (Dia.) mm
Specifications
Range
± 180°
Scale Value
1°
Vernier
0.05°
Magnifier
3X
Light Source
Sodium lamp
Wavelength
589 nm
Tube Length
50, 100 or 200 mm
Operating Temperature
0 to 40° C (32 to 104° F)
Storage Temperature
0 to 60° C (32 to 140° F)
Relative Humidity
< 80% (non-condensing)
Power
AC 220V/50Hz
Dimensions
500 (L) × 135 (W) × 330 (H) mm
(19.6 × 5.3 × 13 in.)
Weight
5 kg (11 lb)

The information in this document is subject to change without notice.
Copyright © Bante Instruments Inc, 2022. All rights reserved.
Disposal
This product is required to comply with the European Union’s Waste
Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC and
may not be disposed of in domestic waste. Please dispose of product
in accordance with local regulations at the collecting point specified
for electrical and electronic equipment.
Warranty
The warranty period for manual polarimeter is one year from the date
of shipment. Above warranty does not cover the sodium lamp. Out of
warranty products will be repaired on a charged basis.
The warranty on your polarimeter shall not apply to defects resulting
from:
•Improper or inadequate maintenance by customer
•Unauthorized modification or misuse
•Operation outside of the environment specifications of the
products.
For more information, please contact the supplier.
Office: 4715 Castlewood St., Sugar land, TX 77479, USA
Tel: [phone]
E-mail: [email protected]
Factory: F3, Building 2, No.2185, Laifang Rd., Shanghai 201615, China
Tel: [phone]
E-mail: [e-mail]
www.bante-china.com