Fluke MFC SWITCHBOX User Manual

MFC Switchbox™

User’s Manual

High pressure liquids and gases are potentially hazardous. Energy stored in these liquids and gases can be released unexpectedly and with extreme force. High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices.

Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of DH Instruments, a Fluke Company 4765 East Beautiful Lane Phoenix AZ 85044-5318 USA.

DH Instruments makes sincere efforts to ensure accuracy and quality of its’ published materials; however, no warranty, expressed or implied, is provided. DH Instruments disclaims any responsibility or liability for any direct or indirect damages resulting from the use of the information in this manual or products described in it. Mention of any product or brand does not constitute an endorsement by DH Instruments of that product or brand. This manual was originally composed in English and was subsequently translated into other languages. The fidelity of the translation cannot be guaranteed. In case of conflict between the English version and other language versions, the English version predominates.

Products described in this manual are manufactured under international patents and one or more of the following U.S. patents: 5,142,483, 5,257,640, 5,331,838, 5,445,035. Other U.S. and international patents pending.

DH Instruments, DH, DHI, MFC-CB, MFC Switchbox, molbloc and molbox1 are trademarks, registered and otherwise, of DH Instruments, a

Fluke Company

Document No. 5500092b-01 020604

Printed in the USA.

TABLE OF CONTENTS

TABLE OF CONTENTS ...............................................................				I
TABLES .................................................................................				III
FIGURES ................................................................................				III
ABOUT THIS MANUAL .............................................................				IV
1.	INTRODUCTION .................................................................			1
	1.1	PRODUCT OVERVIEW ...........................................................................................................................		1
	1.2	LOCATION OF THE COMPONENTS......................................................................................................		2
		1.2.1	FRONT PANEL ..............................................................................................................................................	2
		1.2.2	REAR PANEL ................................................................................................................................................	2
	1.3	1.3 SUBASSEMBLY DESCRIPTION.......................................................................................................		2
		1.3.1	POWER SUPPLY...........................................................................................................................................	2
		1.3.2	RELAY BOARD .............................................................................................................................................	2
		1.3.3	FRONT PANEL ASSEMBLY .........................................................................................................................	3
		1.3.4	REAR PANEL ASSEMBLY ...........................................................................................................................	3
	1.4	SPECIFICATIONS ...................................................................................................................................		3
		1.4.1	GENERAL SPECIFICATIONS .......................................................................................................................	3
		1.4.2 MFC CONTROL FUNCTION SPECIFICATIONS ..........................................................................................		3
		1.4.2.1 MOLBOX1 OR MFC-CB MFC PORT .........................................................................................................		3
		1.4.2.2 MFC PORT 1 (DEVICE 1)..........................................................................................................................		3
		1.4.2.3 MFC / MFM PORT 2 - 5 (DEVICE 2 - DEVICE 5) ......................................................................................		4
		1.4.2.4 MFC SWITCHBOX CONTROL (DIGITAL CONTROL FROM MOLBOX OR MFC-CB) .............................		4
2 .	INSTALLATION ..................................................................			5
	2.1	UNPACKING AND INSPECTION ............................................................................................................		5
	2.2	SITE REQUIREMENTS............................................................................................................................		5
	2.3	INITIAL SETUP........................................................................................................................................		5
		2.3.1	POWER CONNECTION.................................................................................................................................	5
		2.3.2 CONNECTING THE MFC SWITCHBOX TO A MOLBOX1 ...........................................................................		5
		2.3.3 CONNECTING THE MFC SWITCHBOX TO THE DEVICE TO BE CALIBRATED.......................................		5
3 .	OPERATION .......................................................................			7
	3.1	OVERVIEW ..............................................................................................................................................		7
	3.2	GENERAL OPERATION..........................................................................................................................		7
	3.3	MFC PROFILES.......................................................................................................................................		8
	3.4	UNITS OF MEASURE..............................................................................................................................		8
4 .	REMOTE OPERATION .........................................................			9
	4.1	OVERVIEW ..............................................................................................................................................		9
5 .	MAINTENANCE AND ADJUSTMENTS ..................................			11
	5.1	OVERVIEW ............................................................................................................................................		11

Page I

MFC SWITCHBOX USER’S MANUAL

6 . TROUBLESHOO TING . . . . ..... . . . ..... . . . . ..... . . . ..... . . . ..... . . . . ..... . . . ..			13
	6.1	SYMPTOMS / CAUSES / SOLUTIONS .................................................................................................	13
7 .	MENU TREE .....................................................................		15
	7.1	OVERVIEW ............................................................................................................................................	15
	7.2	MOLBOX1 OR MFC-CB MFC FUNCTION KEY....................................................................................	15
	7.3	MOLBOX1 OR MFC-CB SETUP MENU................................................................................................	15
8 .	WARRANTY STATEMENT ..................................................		17

Page II

TABLES AND FIGURES

TABLES

Table 1.	Troubleshooting Checklist ...........................................................................................................	13
Table 2.	DHI Authorized Service Providers ...............................................................................................	17

FIGURES

Figure 1.	Front Panel ...................................................................................................................................	2
Figure 2.	Rear Panel....................................................................................................................................	2

Page III

MFC SWITCHBOX USER’S MANUAL

ABOUT THIS MANUAL

Manual Conventions

(CAUTION) is used in throughout the manual to identify user warnings and cautions.

(NOTE) is used throughout the manual to identify operating and applications advice and additional explanations.

[ ] indicates direct function keys (e.g., [RANGE]). < > indicates PG7000 screen displays (e.g., <1yes>).

Page IV

1. INTRODUCTION

1.INTRODUCTION

1.1PRODUCT OVERVIEW

The MFC Switchbox™ can be used to connect a molbox1™ MFC control option or an MFC-CB™ control channel to up to five MFCs, or to one MFC and four MFMs. The rear panel of the MFC Switchbox connects to the molbox1 or MFC-CB via a circular 5-pin connector and a 25-pin DSUB connector. Cables are provided with the switchbox to facilitate these connections. A power cable is also provided. The MFC Switchbox contains its own power supply which allows it to maintain continuous power on all five devices under test (DUTs). The MFC Switchbox provides up to 55 watts of power. This allows it to provide 260 mA per MFC when fully loaded. MFCs typically require a maximum of 200 mA. Therefore, all five ports of the MFC Switchbox can be used simultaneously in most situations. Occasionally, when calibrating older, power hungry MFCs, it may only be feasible to connect four MFCs at a time.

The front panel of the MFC Switchbox has five 25-pin DSUB connectors. These connectors are used to connect the switchbox to the various DUTs.

Current controlled MFCs can only be used on channel 1. When testing MFMs, an MFC can be used for controlling the flow in the test while taking the measurement data from the currently selected MFM. This controlling MFC must be a voltage based MFC.

Page 1

MFC SWITCHBOX USER’S MANUAL

1.2LOCATION OF THE COMPONENTS

1.2.1 FRONT PANEL

1. Connection

point for DUT 2

2. Connection

point for DUT 4

3. Connection

point for DUT 5

4. Connection

point for DUT 3

5. Connection

point for DUT 1

Figure 1. Front Panel

1.2.2REAR PANEL

1. External

Drivers

Connection

2. Fan

3. Power Entry

4. Product Label

5. Electrical

Connection

Figure 2. Rear Panel

1.31.3 SUBASSEMBLY DESCRIPTION

1.3.1POWER SUPPLY

Powers the electronics inside the MFC Switchbox and provides continuous power to up to five connected DUTs. The switching power supply provides +5 volts at 0.5 amps and +15 volts at 4 amps. This 15 volt signal is converted via a DC-to-DC converter to -15 volts at 1.3 amps (leaving approximately 2 amps for the +15 volt signal). The enclosure is cooled by active air circulation using a fan on the rear panel.

1.3.2RELAY BOARD

Provides the control and signal switching required to connect (one at a time) up to five DUTs to the molbox’s single MFC port.

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