Model NLJ-A Torsion Spring Dynamometer

1,Introduction
Torsion spring dynamometeris designed for use inrecalibrating the Torsion Springs forrotational viscometers. Torsion springs must be removed from the instruments in order to perform this calibration.This instruction describes checking and adjusting the strength of the torsion spring such that aknown torque will produce aknown deflection, (dial reading). In this calibration known weights will be used to produce aknown amount of angular rotation of the bob shaft, or dial reading. The Newton-cm of torque/degree of dial deflection is known as the K1factor. The K1(spring factor) is adjusted by adjusting the active length of the spring.
The Calibration Fixture may be used for:
Calibration of areplacement spring when it being installed.
Verification of calibration of the springbealready in the instrument.
Re-calibration of the springbealready in the instrument.
Check the following parts of the Rheometer for runout or damage. If any of these parts are bent or otherwise damaged, repairs must be made before asuccessful calibration can be performed. Check the following:
Bob Shaft and Bob for runout -Straightenorreplace. Maximum total runout allowed is 0.005 in. (0.127 mm)
Sleeve for runout -- Straighten or replace.
Maximum total runout allowed is 0.005 in. (0.127 mm)
Deformed or damaged spring -- Replace.
Mis-aligned dial "0" -- Readjust zero, (Refer to Sections 3-F7 or 4-F9)
Torsion Shaft bearings defective -Replace2,Type SpecificationModelNameNLJ-ATorsion spring dynamometer
3,Technical SpecificationNo.Technical Specification1Measuring rangeWithin the standard value of spring stiffness, it can continuously work (weight from 1g to 70 g)2Net weight /Gross weight2.66kg/3.04kg3Overall dimensions230x190x290mm4Packing size385x205x230mm
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FAQ:
Q1 :Are you amanufacturer or atrading company ?
A1: We are manufacturer.
Q2: What is your main brand?
A2: Our brand is Haitongda, which is famous in China and other nation. Also we do OEM.
Q3: What are your business scope and product classification?
A3:Business scope: mud analysis instrument, electronic products, special instrument, mold design and manufacturing; Instrument maintenance and sales; import and export of goods and technologies.
Product classification: including drilling fluid analysis instrument, oil well cement testing instrument and field overall solution, including 22 small categories and over 120 products.
Q4: What is your MOQ for the order?
A4: Testers per 1set.
Q5:What is the warranty period of your instrument?
A5: One year.
Q6:Can Iget better offer if our order can be bigger?
A6: Certainly.We will give you better prices based on the quantity for your order.
Q7:What certificate do you have for your instrument?
Q7: ISO, SGS and so on
Q8: What is your lead time for our order?
A8: For new order: 3weeks;
For stock order: 3working days after T/T. based on FOB Qingdao.
Q9: What is your advantage of your factory?
A9: We are the original oil ministry designated drilling fluid analysis equipment manufacturer in China, which was founded in 1968.
Q10: What is the process to become an agency?
A10: Please send us mail enquiry, then we will reply you as soon as possible.
Contact us:
Qingdao Haitongda Special Instrument Co.,Ltd.
Tel:86-532-87605016
Fax:86-532-87604773
Add:No.320, Jiushui East Road,Licang district,Qingdao City,Shandong Province,China(266100)