Monroe-electronics Electrostatic Fieldmeter - Static Monitor - model Manuale Utente

Instruction Manual for Monroe Electronics, Inc. Multi-Point Fieldmeter and Alarm System Model 177A Specificatio

9 Rear panel alarm relay connections: Three status LEDs and relays are assigned to each channel. These LEDs and relays are referenced as OK,

10Section 5 PRINCIPLE OF OPERATION Refer to Figure 9 for the following discussion. The probe is placed to “view” the target surface, which is ass

11Section 6 Using 1036E and 1036F Sensors General Models 1036E and 1036F electrostatic fieldmeter probes are electrically identical and interchang

12 Probe Model Full Scale Sensitivity 1036_-3 ±1 kV/cm (±100 kV/M) 1036_-4 ±10 kV/cm (±1 MV/M) 1036_-5 ±20 kV/cm (±2 MV/M) 1036_-6 ±10 kV/in

13 As a truly uniform field does not usually occur in most practical measurement situations using the 1036F probes, partly due to the introduction o

14 Constant purging of the Model 1036 probe with clean dry air or an inert gas is recommended whenever practical to prevent airborne contaminants fr

15"E-rings" installed on them under the cover plate to make the screws captive and prevent their falling into machinery below. The probe a

16Figure 13: 1036E Standardization/Test Cable, Model No. 1036/22C Terminal/Card Edge ConnectorWHBKRDBKGNBK653411271036E Probe HousingBulk Cable is

17The standardization procedure is as follows:  Set up apparatus as outlined above. Set a precision calibrating voltage source to zero volts. 

18Section 7 Typical Setup Analog Inputs Monitoring equipment for voltage levels may be connected to any or al

TABLE OF CONTENTS WARRANTY ... Page 2 RETURN

19Section 8 OPERATION Front Panel Features Figure 15: Front Panel View Console Switches PWR – Switches unit ON or OFF (There is a main powe

20Rear Panel Relay Connections Three status LEDs and relays are assigned to each channel. These LEDs and relays are referenced as OK, WARNING,

21Channel Switches ENA/DIS – Toggles the channel status between Disable / Enable / Alarm ZERO – Press and release the ZERO button to zero the chan

22Program LED: Normally off. It is on when doing front panel setup. Pulses on when the unit is a master. See section on master/slave operation in th

23Section 9 177A Software Connecting the instrument to a PC (via RS232 serial port) Connect the 177A to your PC using the DB9-M/F straight throu

24 From the File drop-down menu: Select Open to retrieve a stored program fileneme.prg Select Save to save a program Select Restor

25 Note: Alarm level must be greater than the Warning level. Full scale setting must be greater than or equal to the alarm levels. Alarm Delay – D

26Alarm remains in latched or in Alarm mode until the probe reading falls back under the alarm level at which point the relay unlatches. Probe Ty

27Ena/Dis – Toggles channel status Disable / Enable / Alarm for the corresponding channel Zero – Initiates Auto Zeroing for the corresponding

28Selecting this window from the MONITOR drop-down menu on the main screen permits reading and writing to the front panel displays, LEDs, and exerci

2WARRANTY Monroe Electronics, Inc., warrants to the Owners, this instrument to be free from defects in material and workmanship for a period of two

29Section 10 Programming via the Front Panel A programming tree is supplied to facilitate instrument programming via the front panel. Use the pr

30Section 11 Optional 4 – 20 mA Module General The optional 4-20 mA module provides 4 separate channel outputs in addition to the normal voltage

314 – 20 ma Option Board Installation Instructions 1. Un-plug all external connections to the 177A including the power cord. 2. Remove the 7 phil

32 4_20_APPNOTE_060607.cdr 060607EPF

33Section 12 Upgrading the Firmware From time to time firmware upgrades may be available. With units version 1.03 or higher this upgrade can be

34The source file may be on a CD or downloaded from the Internet. If not available via our web site please contact Monroe Electronics to obtain to

35APPENDIX I PROBE CONNECTION OPTIONS There are at least six wiring options for the Model 177A with regards to the Model 1036E or 1036F probes. T

36There are a couple of ways to approach (b. [above]): a. 1. Buy factory fabricated 1036/12-XXXX extension cables (where "XXXX" is the

37 Figure A-I-1

38 Figure A-I-2

3Section 1 GENERAL Monroe Electronics’ Multi-Point Fieldmeter and Alarm System, Model 177A measures electrostatic fields (potential gradient) in t

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42 APPENDIX II INTRINSIC SAFETY BARRIERS Model 1036E and 1036F Electrostatic Fieldmeter Probes meet Factory Mutual Research Corporation

43 NOTES for R. Stahl Systems:  Enclosures include mounting rails, insulating standoffs, ground terminals and labels.  Listed enclosures are Ho

44 APPENDIX III III. RS-485 Half Duplex / Full (RS-422) Connection To 177A RS-485 is a specialized interface that is very common in the data acqui

45 Setup Station ID (continue from above): Press Key Display(blinking) Display Description Left IT Interface Type Down Sn Sta

46 Setup RS-485 Full duplex from the 177A front panel: Press Key Display(blinking) Display Description Program Lo Front panel Lock Up

47 APPENDIX IV Communication with ME 177A using MODBUS Protocol Read Channel LEDs or Relays (read coil) Write Channel LEDs or Relays (write coil) R

48 177A reply to read coil: Unit# command # of data Coil Value crcH crcL 1-255 0x01 1 0=Off, 0xff=On Write Channel LEDs or Relays (writ

4Section 2 SPECIFICATIONS Monitor Console Temperature Range: +15° to +45° C Analog Outputs 10 V, 0 – 5V, (2.5V ±2.5V full

49 The followings are examples of Read Channel command from PC to 177A, ID=1. The command is 8-byte in length. They are in hex. Read channel 1: 01

50 Application Note APNE-0003 Fieldmeter Measurement Techniques Using Monroe Electronics Model 1036 Probes Monroe Electronics Model 1036 fieldmet

51 Convergent field lines such, as these tend to “enhance” the measurement and cause the apparent field strength to increase, thus producing a high

52 APPLICATION NOTE APNE-0014 Electrostatic Charging In Web Converting Table of Contents I. Introduction ...

APNE-0015 53 I. Introduction Why Is It Important To Understand, Measure And Control Static Electricity In Web Coating, Converting, And Printing? S

APNE-0015 54 II. How Electrostatic Charge Builds-Up on a Moving Web Electrostatic Charging On A Web Converting Machine Electrostatic charging can

APNE-0015 55 Table IV-1 is a short triboelectric series that provides an indication of the order of some common materials. The way to use a triboel

APNE-0015 56 Factors That Most Affect Triboelectric Charging Contact Pressure: Increased pressure increases contact area by reducing the air gap be

APNE-0015 57 Webs and rollers exchange charge because of differences in material properties. The factors that we saw above translate into the follo

APNE-0015 58 Typical Web Charging Scenario If we select values of the above factors and hold them constant while allowing the web and roller to mak

5Section 3 ELECTRIC FIELDS AND FIELDMETERS Electric Field An electric field is a region in space characterized by the existence of an electric for

APNE-0015 59 Techniques To Minimize Web Charge And How They Work As much as possible, control the factors that govern charge transfer from objects

APNE-0015 60 V. Continuous Static Control Control of static is not something that occurs once and can then be forgotten. It requires the implemen

APNE-0015 61 not create a threat of explosion or fire when used with solvents-based coating or printing applications. Nuclear ionizers are a contro

APNE-0015 62 APPLICATION NOTE APNE-0015 Electric Fields and Fieldmeters in Web Converting VI. Table of Contents I. Introduction ...

APNE-0016 63 VII. I. Introduction Content This document provides the reader with a review of how fieldmeters operate to measure electric fields, the

APNE-0016 64 Electric Fieldmeters Charge is often difficult or impossible to measure directly. We rely on detection and measurement of the electric fi

APNE-0016 65 Figure II-2 Monroe Model 1036 Fieldmeter Probe Electrostatic fieldmeters measure electric field strength by non-contacting means. All th

APNE-0016 66 Figure II-4 Insulating Sheet Electric Field Demo, Front View of Figure II-3(b) Effect of Probe Type On Fieldmeter Readings For measureme

APNE-0016 67 Figure II-5 Field Lines Straight to 1036E Probe Figure II-6 Field Lines Converging to 1036F Probe Convergent field lines 1036F Prob

APNE-0016 68 Investigation of High Electric Field Problem Areas with Handheld Fieldmeters Unless the humidity of a web converting machine area is cont

6 Figure 2: Monroe Model 1036 Fieldmeter Probe Electrostatic fieldmeters measure electric field strength by non-contacting means. All the charged

APNE-0016 69 Effect of Operator Presence on Fieldmeter Readings Fieldmeters are calibrated in fixtures without a person holding them, so the effect of

APNE-0016 70 Pinch roller operation, as when the web runs over a metal gravure cylinder with a rubber impression roller applying pressure to the cylin

APNE-0016 71 are there conductive layers inside web, or will they be applied in this process? starting web material conductive? (volume resistivity

APNE-0016 72 web enter flammable area such as solvent coating or printing? want quick overview of existing "high static" machine ar

APNE-0016 73 from pg2 Simple "Net Charge" Static Survey approach web span to be measured, monitoring meter reading does meter reading

APNE-0016 74 Calculating Web Surface Charge Density Providing that fieldmeter readings are taken in compliance with the limiting conditions specified

APNE-0016 75 IX. III References [1] Crowley, J.M., Fundamentals of Applied Electrostatics, Wiley-Interscience, New York (1985) [2] Seaver, A.E., “An

APNE-0016 76 APPLICATION NOTE APNE-0016 Static Control in Web Converting Table of Contents I. Continuous Measurement and Control of Web Static Level

APNE-0016 77 I. Continuous Measurement and Control of Web Static Levels in Critical Machine Areas Content Control of static is not something that occ

APNE-0016 78 Hints For Maximum Static Control And Effective Monitoring High-speed operations might require a second static neutralizer along the web b

7Effect of Probe Type on Fieldmeter Readings For measurement of insulating web surfaces, it is best to maintain the same distance from the fieldmete

APNE-0016 79 Fieldmeters located immediately following active or passive charge control devices (ionizers) monitor the effectiveness of the devices. Z

APNE-0016 80 Installation Sensitivity Full-scale sensitivity for any properly standardized and calibrated probe/instrument combination is dependent up

APNE-0016 81 As a truly uniform field does not usually occur in most practical measurement situations using the 1036F probes, partly due to the introd

APNE-0016 82 Purge the Model 1036E probe through a ¼"-18 NPT tapped hole in the end of the housing near the cable exit using common plumbing or t

APNE-0016 83 Standardization A simple, accurate means of standardizing Model 1036 probes using any channel of the Model 177A Static Monitor is given h

APNE-0016 84 Probe Model Sensitivity VHV VIND 1036_-2 ±100 V/cm 254 V 100.0 V 1036_-3 ±1 kV/cm 2540 V 1.000 kV 1036_-4 ±10 kV/cm 2540 V 1

APNE-0016 85 III. Principle of Operation Refer to Figure III-1 for the following discussion. The probe is placed to “view” the target surface, which

APNE-0016 86 IV. References This Document [1] Horváth, T. and Berta, I., Static Elimination, Research Studies Press, Chichester (1982). [2] ESD STM11

APNE-0016 87 Useful Hazardous (Classified) Location and Intrinsic Safety References American National Standards Institute (ANSI) and International Soc

APNE-0016 88 V. Appendix A – Probe Connection Options General Model 1036E or 1036E Probes may be wired to the Model 177A Static Monitor in at least s

8Section 4 INSTALLATION The Model 177A Multi-Point Fieldmeter and Alarm System, is designed to occupy a 1¾” space in a standard 19” equipment rack

APNE-0016 89 Option 5: 1036F probes with factory installed cables, extension cables (factory or customer supplied) and Intrinsic Safety barriers Refe

APNE-0016 90 number is 1036/12-nnnn, where nnnn denotes the length of the cable in feet. Factory supplied extension cables will be labeled with this p

APNE-0016 91 Figure V-1 1036E Customer Installed Cable Terminal/Card Edge ConnectorWHBKRDBKGNBK653411271036E Probe HousingBulk Cable is Belden 8777NOT

APNE-0016 92 Figure V-2 1036 Customer Installed Extension Cable WHDB9MConnector6745219BKRDBKGNBK38Bulk Cable is Belden 8777Connector PartsConn. Plug

APNE-0016 93 VI. Appendix B – Intrinsic Safety Barriers General Model 1036E and 1036F Electrostatic Fieldmeter Probes meet Factory Mutual Research Co

APNE-0016 94 Barrier requirements and recommended enclosures are shown in the tables below: MTL Barriers and Enclosures Number of Channels 1 2 4

APNE-0016 95 R. Stahl Barriers and Enclosures Number of Channels 1 2 4 6 8 10 12 14 16 Number of Barriers 9002/77-150-300-00 2 4 8 12