GLK 3000 Operation And Calibration Manual

Digital capacitance meter

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

MODEL 3000

DIGITAL CAPACITANCE METER

Operation and Calibration Manual

Serial Numbers

This manual applies directly to instruments with serial

numbers 30700 and up, m

ain board assembly

8503000-0-3, revision 3.

Rev. 3.3, 21 January 2007

Serial Number: ___________

For technical assistance, contact

GLK

INSTRUMENTS

Email:

support@glkinst.com

Website:

www.glkinst.com

Table of Contents

Need help?

Do you have a question about the 3000 and is the answer not in the manual?

Questions and answers

Summary of Contents for GLK 3000

Page 1 MODEL 3000 DIGITAL CAPACITANCE METER Operation and Calibration Manual Serial Numbers This manual applies directly to instruments with serial numbers 30700 and up, m ain board assembly 8503000-0-3, revision 3. Rev. 3.3, 21 January 2007 Copyright 2007 Serial Number: ___________...
Page 2: Table Of Contents
TABLE OF CONTENTS Section Page I. Warranty II. Product Use Restrictions III. Return Material Authorization IV. Specifications V. Description VI. Initial Preparation VII. Operating Instructions VIII. Servicing Information IX. Calibration X. Revisions INSTRUMENTS Rev. 3.3, 21 January 2007 Copyright 2007...
Page 3: Warranty
GLK Instruments receives in writing satisfactory assurances that (a) the risks of injury or damage have been minimized, (b) the customer assumes a ll such risks, and (c) the liabilit y of GLK Instruments is adequately protected under the circumstances.
Page 4: Specifications
IV. SPECIFICATIONS C unless specified otherwise) Electrical Capacitance range: 2.000 pF to 200.0 nF Resolution: 0.001 pF to 0.1 nF Display: 3 1/2 digit liquid crystal display (LCD) Accuracy with or without probes: ± (0.1% of reading + 2 digits) Measurement frequencies: 24 kHz (2 pF, 20 pF, 200 pF, 2 nF) 2.4 kHz (20 nF)
Page 5: Description
For example, the Model 3000 with its standard probes can easily determine the capac itance between the pins of a connector, the...
Page 6 Model 3000 whenever a USB cable is conn ected to a compliant USB port (powered port) on the host computer. When power ed by the USB port, the Model 3000 is always on, independent of t he ON/OFF s witch position. Due to the optical and magnetic isolation of the U SB port from the Model 3000 circuitry, the USB port is active only when powered from the host computer.
Page 7: Initial Preparation
CAUTION - ALWAYS DISCHARGE HIGH VOLTAGE CAPACITORS BEFORE MEASURING TO AVOID DAMAGE TO INSTRUMENT ******************************************************* You should now be familiar wit h the gener al use of the Model 3000 Digital Capacitance Meter. For a more detailed discussion of the operation of the Model 3000, refer to the following section.
Page 8: Operating Instructions
ON/OFF swit ch position, when powered by the US B port. 4 & 5) Connection to t he Model 3000 is via the BNC's on the front panel. Normally the probes supplied with the instrument will be connect ed to these terminals .
Page 9 7) The 9 V battery is housed in a compartm ent on the rear of the instrument. The Model 3000 will operate for approximately 200 hours on a 9 V alk aline battery. A low dropout voltage regulator allows extended use of the batte ry down to a voltage of about 5.2 V before replacement.
Page 10 11) USB port provides fully isolated digi tal I/O and po wer, extended resolution and range as shown in Table I, and powers the M odel 3000 from the host computer. To access the USB port, the appropriate drivers must be installed on the host computer.
Page 11 Model 3000 and USB communication VI's were written in LabVIEW® 7 an d will not run in earlier versions of LabVIE W®. Contact National Instruments, www.ni.com, to upgrade to version 7 or later, or insta ll the runtime engine a nd run the executable version of the demonstration program.
Page 12: Servicing Information
All critical par ts are socketed for easy replacement. JFETS, Q3 and Q4, should be replaced in pairs. Basic Diagnostics: If the Model 3000 fails to power on under ba ttery power, replace the 9 V battery through the compartment on the back of the ins trument.
Page 13 . If the above repair is unsucce ssful, the instrument will need factory service. Contact GLK Instruments for RMA and shipping instructions. Figure 1. Location of parts, test points, and adjustments. Spares are located on the main board, A0, and under the ADC-digital I/O USB interface board, A3, if present.
Page 14: Calibration
A0TP1. If its voltage is below 7 V, replace the battery with a fresh 9 V alk aline or li thium cell. The Model 3000 will function correctly down to a battery voltage of approximately 5.2 V. Note, in the followin g procedure, the calibr ation standard is assumed to 1.0000 nF ±...
Page 15: Revisions
X. REVISIONS The following changes are effective for instruments with serial numbers 30000 and up (PCB Assembly 8503000-0-3 Rev 3). No revisions at this time. This manual and any future revisions will be posted on our website: www.glkinst.com INSTRUMENTS Rev. 3.3, 21 January 2007 Copyright 2007...