Model NLJ-A Torsion Spring Dynamometer for Recalibrating the Torsion Springs for Rotational Viscometers

• Type: Spring
• Applicable Industry: Drilling Mud Tester
• Species: Spring Balance
• Spring Dynamometer Species: Spring Dynamometer
• Application Area: Quality Management
• Bracket: Bracket
• Model NO.: NLJ-A
• Customized: Non-Customized
• Material: Aluminum, Iron, Stainless Steel
• Transport Package: Carton Box
• Specification: 385*205*230mm
• Trademark: haitongda
• Origin: China
• HS Code: 9024800000
• Production Capacity: 1000 Sets/Year

Product Description

1,Introduction
    Torsion spring dynamometer is designed for use in recalibrating the Torsion Springs for rotational 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 a known torque will produce a known deflection, (dial reading). In this calibration known weights will be used to produce a known amount of angular rotation of the bob shaft, or dial reading. The Newton-cm of torque/degree of dial deflection is known as the K₁ factor. The K₁ (spring factor) is adjusted by adjusting the active length of the spring.
The Calibration Fixture may be used for:
Calibration of a replacement spring when it being installed.
Verification of calibration of the spring bealready in the instrument.
Re-calibration of the spring be already 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 a successful calibration can be performed. Check the following:
Bob Shaft and Bob for runout -Straighten or replace. 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 -Replace

2,Type Specification

Model	Name
NLJ-A	Torsion spring dynamometer

3,Technical Specification

No.	Technical Specification
1	Measuring range	Within the standard value of spring stiffness, it can continuously work (weight from 1 g to 70 g)
2	Net weight / Gross weight	2.66kg/3.04kg
3	Overall dimensions	230×190×290mm
4	Packing size	385×205×230mm

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FAQ:
Q1 : Are you a manufacturer or a trading 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 1 set.
Q5: What is the warranty period of your instrument?
A5: One year.
Q6: Can I get 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: 3 weeks; 
For stock order: 3 working 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.
   
   
 
Add:No.320, Jiushui East Road,Licang district,Qingdao City,Shandong Province,China(266100)