Automated Digital Rheometer NRC-132
15Pages

DRILLNG FLUID TESTING INSTRUMENTATION RheoADR Automated Digital Rheometer Automated Digital Rheometer Model NRC-132 Instruction Manual …Quality is Everything... Email: service@rigchina.com SKYPE:RIGCHINA Website: http://www.rigchina.com Telephone: 0086-579-87537698 Fax: 0086-579-8753 696 Address: No.80-82, Qiude Road, West Cheng Industrial Estate, Yongkang city, Zhejiang Province, China,Postcode: 321300

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer ©2014 Rigchina Group Company All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means (graphic, electronic, or mechanical) without first receiving the written permission of Rigchina Group Company

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer 1. Introduction The RheoADR™ is a direct-reading instrument for evaluating the rheological properties of fluids, Newtonian and non-Newtonian. The advantages of the RheoADR™ are its digital display, pre-programmed API tests, data recording feature, and speed range — 12 preset. This design includes a R1 Rotor Sleeve, B1 Bob, F1 Torsion Spring, and a stainless steel sample cup for testing according to American Petroleum Institute Recommended Practice for Field Testing Water Based Drilling Fluids, API RP 13B1/ISO 10414-1...

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer 2. Safety Safe laboratory practices and procedures should be observed while operating and maintaining the RheoADR™ Rheometer. This section lists some precautions to follow. 2.1 Safe Electrical Operation This instrument is driven by 100V to 240V, 50/60 Hz electrical power. Heated sample cups and recirculating sample cups (optional) are electrically heated. Make sure the power and other wiring associated with this rheometer and electrically heated sample cups are in good condition and properly grounded. Keep hands, clothes and...

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer 3. Features and Specifications RheoADR™ Rheometer comes with the standard R1 rotor sleeve, B1 bob, F1 torsion spring, and a stainless steel sample cup. Its features include the following: Preprogrammed API tests— API drilling fluid and API cement Resistance Temperature Detector (RTD) for 0.5°F accuracy and Repeatability Secure fit, left-hand turn for rotor and right-hand turn for bob to help prevent disconnection when measuring high viscosity fluids LED display for high-contrast , making it easier to read LED-lighted sample...

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer Table 3-2 Rotor and Bob Dimensions Unit Cylinder Area (cm2) x Radius Table 3-3 Rotor-Bob Specifications ROTOR-BOB Rotor Radius, R0 (cm) Bob Radius, Ri (cm) Bob Height, L (cm) Shear Gap in Annulus (cm) Radii Ratio, Ri /R0 Maximum Use Temperature (oC) Table 3-4 Range of Environmental Conditions Maximum Altitude 41oF to 104oF (5oC to 40oC) 80% RH at 87.8oF (31oC) or Maximum Relative Humidity (RH) less 50% RH at 104oF (40oC) Temperature Range

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer 4 Installation The RheoADR™ Rheometer should be placed where there is easy access to the power cord plug for disconnection. Bob Removal and Installation To remove or install the bob, urn the bob counterclockwise (left) to remove it and clockwise (right) to install it (righthand-threads). Consideration should be given to the location where samples are prepared and equipment is cleaned when the test is completed. There should be sufficient storage area nearby for commonly used tools, as well as consumables.

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer To start a test, add 350 ml of sample to the stainless steel sample cup. The sample cup has a line that marks 350 ml. A scribed line on the rotor indicates proper immersion depth. Damage to the bob shaft bearing may occur if the immersion depth is exceeded. If other sample holders are used, the space between the bottom of the rotor and the bottom of the sample holder should be one-half inch (1.27cm) or greater. This instrument is operated through a keypad (Figure 5-1). The keypad functions are summarized in Table 5-1 and...

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer Plug the power supply into a 100V to 240V, 50/60 Hz power source. Connect the power supply to rear of the rheometer. Turn on the power switch. The LED backlight will show and the following screens will appear. After a few seconds, the machine enters the operating mode. The data display lists the speed (RPM), dial reading (DIAL), and the viscosity in centipoise (cP) in real-time. 5.2 Manual Operating Instructions Shutting down the rheometer Turn the power switch (side of instrument) to OFF position During testing, the...

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer 6. Initiating sensor calibration 6.1 Deadweight or fluid calibration (Figure 6‐1). Shear Stress Measuring Range for RIGCHINA Viscometer Table 6-1 Torsion Spring Torsion Torsion Spring Constant, k1 Spring Assembly (with Dynes/cm/degre Factor f R1- B1 e deflection combination) Maximum Shear Stress with B1 Bob (dyne/cm2)

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer Dial Range Dial Range Table 6-3 Shear Rate Measuring Range for Viscometers Rate of Revolution of Outer Cylinder, N (rpm) Shear Rate Range (sec-1), = k3N Rotor-Bob Combinations R1 B1

DRILLNG FLUID TESTING INSTRUMENTATION RheoVADR™ Rheometer Table 6-4 Viscosity Range in Centipoise for RIGCHINA Direct Indicating Viscometers All Models, 600 rpm max Minimum Viscosity (2) Notes: 1) Computed for standard Torsion Spring (F1). For other torsion springs multiply viscosity range by f factor. 2) Minimum viscosity is computed for minimum shear stress and maximum shear rate. 3) For practical purposes the minimum viscosity is limited to 0.5 cP because of Taylor Vortices. 4) Maximum viscosity is computed for maximum shear stress and minimum shear rate. 6.2 Fluid Calibration...