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Related Manuals for Krohn-Hite FMB3002
Summary of Contents for Krohn-Hite FMB3002
- Page 1 Model FMB3002 2 Channel Filter/Amplifier Operating Manual...
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Page 2: Service And Warranty
This warranty does not apply to fuses or batteries. No other warranty is expressed or implied. Krohn-Hite Corporation reserves the right to make design changes at any time without incurring any obligation to incorporate these changes in instruments previously purchased. - Page 3 V2.1 Dated: 6-30-11 Copyright © 2011 Krohn-Hite Corporation. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise, without the prior written permission of Krohn-Hite Corporation.
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Page 4: Table Of Contents
TABLE OF CONTENTS GENERAL DESCRIPTION ........................ 1 Description ..........................1 AC/Battery Power ........................1 Differential and Single-ended Operation ................1 Battery Powered ........................1 Applications ........................... 1 Specifications ........................2 1.2.1 Filter Module Characteristics ................... 2 1.2.2 Input Amplifier Characteristics ................. 2 1.2.2.1 Single-Ended Input .................. - Page 5 DC Offset Adjust ....................... 12 2.5.3.1 Single-Ended Input ..................12 2.5.3.2 Differential Input ..................12 2.7.4 Optional G1 and G2 Front Panel Gain Switches ............13 2.7.5 SE and DIFF Options ....................13 Addendum ............................14 Figure 1.1 Model FMB3002 Filter/Amplifier...
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Page 7: General Description
The FMB3002 is an ac powered chassis. A rear panel 3-terminal power receptacle is provided for attaching ac source. An ac line switch provided for selecting the proper input line requirement of 120V and 240V. The FMB3002 is also a battery operated chassis that can be powered by two 9V, high energy, lithium batteries. -
Page 8: Specifications
Maximum Safe Voltage: ±18Vdc. Note: Modules plugged into the FMB3002 chassis and the chassis has the Gain Option installed, must be of the same input type configuration (differential or single-ended). They must not be mixed or the gain function will not work correctly. -
Page 9: Output Amplifier Characteristics
------------------------------------------------------------------------------------------------------------ Section 1 – General Description Maximum Common Mode Voltage: Equation to determine the max gain available for differential modules up to 200kHz. For battery operation up to 200kHz, the maximum Common Mode Voltage is less than 9Vdc. Consult factory for gain bandwidth limitations above 200kHz. 1.2.3 Output Amplifier Characteristics Maximum Output Voltage: ±10V peak. -
Page 10: Accessories
1.2.6 Accessories 3F Series (plug-in filter/amplifier modules) CON-045 Fixed frequency plug-in filter/amplifier module Mating connector for differential input, for the FMB3002. output and rear panel dc power (on FMB3002DC only) connections. HEBAT CAB-018 High energy 9V lithium batteries. Cable, BNC, 3’. - Page 11 ------------------------------------------------------------------------------------------------------------ Section 1 – General Description Figure 1.1 - FMB3002 Front Panel...
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Page 13: Operation
For DC battery operation, unplug the FMB3002 from the ac line. The FMB3002 will automatically switch to DC battery operation when batteries have been installed in the unit and the power switch is turned to the ON position. -
Page 14: Battery Operation
FRONT PANEL CONTROLS AND CONNECTIONS The FMB3002 provides 1 or 2 channels of filtering and amplification by way of plug-in filter/amplifier modules. You can populate with one channel if desired. Each channel has an input (single-ended, BNC and a 3-terminal, differential) connectors, and output connectors (BNC) and an active LED. -
Page 15: Active Led
10V peak with ac operation and 2V peak with battery operation. 2.4.10. Power Switch (10) Press to turn the FMB3002 on or off. Always disconnect the power cord whenever the cover is removed. FMB3002AC REAR PANEL The rear panel of the FMB3002AC provides an ac power receptacle and a line switch. The ac power receptacle is a standard 3-terminal connector and complies with the European I.E.C. -
Page 16: Operation
OPERATION In order for the FMB3002 to operate, one or two model 3F Series Filter/Amplifier Modules must be installed. This is usually done at the factory before delivery. If they are already installed, the unit is ready to operate. If the modules are not installed, take extra care when inserting the module into the sockets. -
Page 17: Input Differential Operation
Figure 2.5 – Differential Terminal Block Connector Note: Differential modules with EG1 and/or EG2 options will only work properly in a FMB3002 chassis with the DIFF option. The gain values will be incorrect when installing a differential module in an FMB3002 with the SE option. -
Page 18: Dc Offset Adjust
2.7.3 DC Offset Adjustment The FMB3002 provides two dc offset adjustments for each channel to correct for any dc offset that may appear at the output BNC. There are different procedures to follow depending on input gain, output gain and the type module installed in each channel. -
Page 19: Optional G1 And G2 Front Panel Gain Switches
SE and DIFF Options The FMB3002 must be specified with an SE or DIFF when a 3F Filter Module is installed with the EG1 and/or EG2 options in order for the gain switches provided (G1 and/or G2 option) to operate correctly. If the FMB3002 has not been specified with the SE or DIFF option, and 3F Modules are installed with the EG1 and/or EG2 options, the gain values will not be correct as indicated on the front panel.