Spellman MCP4 User manual

Tel : +44 (0)1798 877000

hvsales@spellmanhv.co.uk

Broomers Park, Pulborough,

W. Sussex, UK. RH20 2RY

Product:

MCP4

Title:

Installation and User Guide

Document Number:

81604-4

Issue:

Issue

Date

20/04/20

08/09/2020

14/05/2021

Issuing Authority

I-7087

I-7335

I-10172

Engineering

Approval

Sales / Marketing

Approval

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 2 of 8

Change History

Contents

1Unit Description..........................................................................................................................................5

1.1 HV Unit Ratings ................................................................................................................................5

2Safety .........................................................................................................................................................5

2.1 Meaning of Symbols .........................................................................................................................6

2.2 Regulatory Approval .........................................................................................................................6

3Installation of the HV Unit ..........................................................................................................................6

3.1 Initial Inspection ................................................................................................................................6

3.2 Mechanical Installation .....................................................................................................................6

3.3 Electrical Installation .........................................................................................................................6

3.4 HV Unit Interfaces.............................................................................................................................7

3.4.1. Control and Input power Connection...........................................................................................7

3.4.2. HV Output Connection.................................................................................................................7

4Operation of the HV Unit............................................................................................................................7

4.1 Control and Monitor Signals .............................................................................................................7

4.2LED Indicator ....................................................................................................................................7

Appendix 1 –Mechanical Outline .......................................................................................................................8

ISSUE

DATE

SECTION

CHANGE

All

Created from 81604-1

Revised for User Guide

All

2.2

3.4.2

Appx 1

Template update

MCP4N version removed

Unit description drawing updated from HV input / output to +VE and -VE

Marking indication substituted with Regulatory approvals

HV cable braid connection recommendation clarified

Drawing updated with +VE and -VE cables indication

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 3 of 8

SAFETY

DANGER

HIGH VOLTAGE

RISK OF ELECTROCUTION

Observe extreme caution when working with this equipment

High voltage power supplies must always be connected to

protective earth

Do not touch connections unless equipment is turned off and

the capacitance of both the load and power supply are grounded

Allow adequate time for discharge of internal capacitance of the

power supply

Do not ground yourself or work under wet or damp conditions

Servicing Safety

Maintenance may require removing the Instrument cover with

the power on

Servicing should only be done by qualified personnel aware of

the hazards

Return to supplier for servicing

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 4 of 8

SÉCURITÉ

DANGER

HAUTE TENSION

RISQUE D'ÉLECTROCUTION

Observez une extrême prudence lorsque vous travaillez avec cet équipement

Les alimentations haute tension doivent toujours être connectées

au conducteur de protection.

Ne pas toucher les connexions à moins que l'équipement soit

éteint et que la capacité de la charge et de l'alimentation

électrique ne soit mise à la terre.

Prévoir un temps suffisant pour la décharge de la capacité

interne de l'alimentation.

Ne pas vous mettre à la terre ou travailler dans des conditions

humides.

Sécurité d'entretien

L'entretien ne doit être effectué que par un personnel qualifié et

conscient des dangers.

Il n'y a pas de piéce remplaçables par l'utilisateur dans l'unité,

retourner au fournisseur pour l'entretien.

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 5 of 8

1 Unit Description

The MCP4 is a high voltage detector PSU for mass spectrometers and other scientific instruments.

The output is isolated from ground to 15kV, such that it can be floated upon the HV output of an

accelerator voltage or other high voltage source, as shown in the diagram below.

The unit has been designed to provide low noise and ripple, with particular design features to minimise

crosstalk with the HV source upon which it is floated.

The units are provided with fixed HV input and output cables, specified in Section 3.4

1.1 HV Unit Ratings

The ratings are as follows:

HV Output: 0 to 4kVdc, 600µA (+VE with respect to -VE)

Input: 24Vdc +/-5%, 700mA (there is no operator changeable fuse)

Operating Temperature: 0°C to 50°C

Relative humidity rating: 5% to 90% (non-condensing)

Altitude: Up to 3000m above mean sea level

Mass: 1.75 Kg

Dimensions: 242 x 139 x 46 mm (see layout in Appendix 1)

2 Safety

The unit’s HV output is at a non-hazardous level to the requirements of EN61010-1. The conditions of

this manual must be complied with to maintain safety. Operating the unit in a manner not specified in

this manual may impair the protection against electric shock that the unit may normally provide.

Note: Although the HV generated by this unit itself is non-hazardous, it may become hazardous when

connected to an external supply, depending upon the rating of the external supply.

The unit has been evaluated for use in a Pollution Degree 2, Installation Category II, environment.

I/O

ANALOGUE

CONTROL

GENERATOR

24V

-VE

+VE

0 to ±15kV

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 6 of 8

Consideration should be given to conducting the following tests with the unit installed in the end

product:

•Dielectric Voltage Withstand Test, between live parts of the unit and the end product chassis.

•Permissible Limits Tests with the unit installed in the end product.

•Temperatures on power electronic components, transformer windings and accessible surfaces.

2.1 Meaning of Symbols

SYMBOL

MEANING IN ENGLISH

SENS EN FRANÇAIS

Refer to manual before

operating

Se référer au manuel avant

utilisation

Caution, possibility of electric

shock

Attention! Risque de choc

électrique

Caution, hot surface

Attention! Surface chaude!

2.2 Regulatory Approval

The unit is designed to meet the requirements of EN 61010-1, UL 61010-1 and CAN/CSA-22.2 No.

61010-1. Please consult the factory for further approval information.

3 Installation of the HV Unit

3.1 Initial Inspection

Inspect the package exterior for evidence of damage due to handling in transit. Notify the carrier and

Spellman immediately if damage is evident. Do not destroy or remove any of the packing material used

in a damaged shipment.

After unpacking, inspect the panel and chassis for visible damage.

Note: Failure to comply with the above could compromise the safe operation of the unit and invalidate

the warranty.

3.2 Mechanical Installation

The unit should only be used in a Pollution Degree 2 Installation Category II environment.

The unit is intended for use as a component and no surface of the unit should be accessible in the end

product.

The Mechanical outline is shown in Appendix 1.

3.3 Electrical Installation

The units must be terminated safely befor6e operation. The case of the unit must be connected to the

PE earth of the final system using the stud provided on the case.

The dc power input shall be provided by a SELV or Double insulated, UL recognised, DC power supply

unit.

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 7 of 8

3.4 HV Unit Interfaces

3.4.1. Control and Input power Connection

The unit is connected via an industry standard 9 Way D-Type Connector:

CONNECTION

VPROG

VPRG_RTN

ENABLE

ENABLE_RTN

Power GND

Signal GND

VMON

Not used

+24Vdc

3.4.2. HV Output Connection

CONNECTION

CONNECTOR TYPE

CABLE LENGTH

HV CABLE x 2

(+VE and -VE)

HRG58-20-2 HV COAX CABLE 20KV

BRAIDED RED 4.95mm DIA

1150 ± 10mm

The cable braid is connected to chassis ground. It is recommended to use the braid as a HV return for

a connected high voltage reference supply.

4 Operation of the HV Unit

4.1 Control and Monitor Signals

The following signals are used to control and monitor the HV unit:

Control, Monitor signal

Attribution

Type

Level

Voltage program control

VPROG

Vdc

0-10V corresponding to

0- 4kV Full Scale

Enable control

ENABLE

TTL

Hi = Enable (>2V).

Imax=19mA or Vmax=11V

Voltage output monitor

VMON

Vdc

0-10V corresponding to full

scale HV output

4.2 LED Indicator

Parameter

Type

Description

HV Enabled

LED

ON= +5V typically

MCP4 –Installation and User Guide

Document Number: 81604-4

Issue: 1

Spellman High Voltage Electronics Limited |+44 (0)1798 877000 |hvsales@spellmanhv.co.uk |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY

Page 8 of 8

Appendix 1 –Mechanical Outline

Table of contents

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