1. Open the cover and carefully wipe the detection prism with a soft cloth 2. Drop distilled water and the prism, turn the zero adjustment screw to adjust the dividing line to 0% of the scale, and then wipe it dry 3. Drop the solution to be tested on the prism and close the cover to avoid air bubbles and spread the solution all over the surface of the prism 4. Point the instrument's light entrance plate at the light source or bright place, observe the field of view through the eyepiece, turn the eyepiece adjustment handwheel 5. Make the blue and white dividing line of the field of view clear, and the scale value of the dividing line is the measured value of the solution
1.What is the MOQ of your products?
Answer:our MOQ is 25pcs 2.How long can we receive the response after sending inquiry?
Answer:we are online anytime, you can contact us to know within 24 hours
3.What is the lead time for products order?
Answer:usually, if small order, 2-3days after getting payment;if big order, it needs 10-20days after payment, it depends upon your quantity 4.What payment terms you accept? Answer:EXW or Price is available, and Paypal/TT Trade Assurance is workable 5.What services can we get from your company? Answer:Superior products(peculiar design,strict quality control); Factory direct sale(favorable and competitive price); Excellent services(delivery goods on time;one year warranty;post and after services); Professional business consultation.