Spellman MCP4 User manual

© 2021 Spellman High Voltage Electronics Corporation
Tel : [phone]
[e-mail]
Broomers Park, Pulborough,
W. Sussex, UK. RH20 2RY
Product:
MCP4
Title:
Installation and User Guide
Document Number:
81604-4
Issue:
1
Issue
A
B
1
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 |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
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
A
All
Created from 81604-1
B
Revised for User Guide
1
All
All
1
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 |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
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 |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
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 |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
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
HV
GENERATOR
24V
-VE
+VE
0 to ±15kV

MCP4 –Installation and User Guide
Document Number: 81604-4
Issue: 1
Spellman High Voltage Electronics Limited |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
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 |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
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:
PIN
CONNECTION
1
VPROG
2
VPRG_RTN
3
ENABLE
4
ENABLE_RTN
5
Power GND
6
Signal GND
7
VMON
8
Not used
9
+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
Pin
Type
Level
Voltage program control
VPROG
1
Vdc
0-10V corresponding to
0- 4kV Full Scale
Enable control
ENABLE
3
TTL
Hi = Enable (>2V).
Imax=19mA or Vmax=11V
Voltage output monitor
VMON
7
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 |[phone] |[e-mail] |Broomers Park, Pulborough, W. Sussex, UK. RH20 2RY
© 2021 Spellman High Voltage Electronics Corporation
Page 8 of 8
Appendix 1 –Mechanical Outline