Pfeiffer Vacuum CP 400 User manual

Operating Instructions
BG 805 812 BE (0206) 1
Ion Counter Preamplifier
CP 400

2BG 805 812 BE (0206) CP400.oi
In all communications with Pfeiffer Vacuum, please specify the information on the
product nameplate. For convenient reference copy that information into the space
provided below.
Model:
PN:
SN:
Pfeiffer Vacuum, D-35614 Asslar
This document applies to products with part number PT442210-T
The part number (PN) can be taken from the product nameplate.
We reserve the right to make technical changes without prior notice.
The CP 400 is used as preamplifier for the analyzers QMA 400 and QMA 125 with
90° off-axis SEM when they are operated in ion counting mode.
The CP 400 consists of:
· high voltage supply with the pulse decoupling
· amplifier part with pulse discriminator
The response threshold for the pulse discriminator is set from the control unit.
Counter
pulses
Response
threshold
HV+HV–
High voltage input
with pulse de-
coupling
Amplifier with
pulse discriminator
SEM
Schematic diagram of the CP 400 with SEM connected
Product Identification
Validity
Intended Use
Description

BG 805 812 BE (0206) CP400.oi 3
Contents
Product Identification 2
Validity 2
Intended Use 2
Description 2
1 Safety 4
1.1 Symbols Used 4
1.2 Personnel Qualifications 4
1.3 General Safety Instructions 4
1.4 Liability and Warranty 4
2 Technical Data 5
3 Installation 7
3.1 Mounting 7
3.2 Dismanteling 9
4 Operation 9
5 Maintenance 9
6 Troubleshooting 10
7 Storage 10
8 Returning the Product 10
9 Disposal 11
Declaration of Contamination 12
For cross-references within this document, the symbol (®2XY) is used, for cross-
references to further documents, the symbol (®&).

4BG 805 812 BE (0206) CP400.oi
1 Safety
DANGER
Information on preventing any kind of physical injury.
WARNING
Information on preventing extensive equipment and environmental damage.
Caution
Information on correct handling or use. Disregard can lead to malfunctions or
minor equipment damage.
Wear clean gloves
Skilled personnel
All work described in this document may only be carried out by persons who
have suitable technical training and the necessary experience or who have been
instructed by the end-user of the product.
· Adhere to the applicable regulations and take the necessary precautions for the
process media used.
· Adhere to the applicable regulations and take the necessary precautions for all
work you are going to do and consider the safety instructions in this document.
· Before beginning to work, find out whether any vacuum components are con-
taminated. Adhere to the relevant regulations and take the necessary precau-
tions when handling contaminated parts.
Communicate the safety instructions to all other users.
Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if the
end-user or third parties
· disregard the information in this document
· use the product in a non-conforming manner
· make any kind of interventions (modifications, alterations etc.) on the product
· use the product with accessories not listed in the corresponding product
documentation.
1.1 Symbols Used
1.2 Personnel Qualifications
1.3 General Safety
Instructions
1.4 Liability and Warranty

BG 805 812 BE (0206) CP400.oi 5
2 Technical Data
Supply
V+
V–
+12 … 15 VDC, 120 mA
–12 … 15 VDC, 50 mA
Pulse input
Puls width
Double pulse resolution
Input impedance
Minimum pulse amplitude
Input protection
10 ns typical
£20 ns
50 W
1 mV into 50 W
from high voltage arcs occurring in the
SEM
Pulse output ECL level
complementary (OUT–, OUT+)
Suited for differential drive of a
"TWISTED PAIR" line
Control input for response threshold
Control voltage
Common mode
®diagram
0 … 2.5 VDC,
LEVEL+ to LEVEL–
max. ±0.5 V
0.50.1 1
5
4
3
2
1
CP level
Response threshold
Pulse amplitude at the
input [mV] into 50 W
New series
Previous series
Typical curve for threshold control
The CP level is a nondimensional parameter, which is set on the control
unit. For more recent Ion Counter Preamplifiers, set the parameter to
0.1 … 0.5, for older units, set the parameter to 0.1 … 1.
The curve is not defined outside the given range.

6BG 805 812 BE (0206) CP400.oi
Connections
Flange plug connector suited for QMA 400 and
QMA 125 with 90° off axis SEM
High voltage connection
Connector
Operating voltage
SEM voltage (DHV+/HV-)
HV+ corresp. to QMG-GND
HV- corresp. to QMG-GND
SHV chassis socket
3.5 kV nominal 4.0 kV max.
6.7 kV nominal 7.0 kV max.
6.0 kV nominal 6.5 kV max.
Control unit
Connector
Pin assignment
D subminiature, 15 poles, male
Pin 1: QMA-GND (Ground)
2: Identification
(6.8 kWto GND)
3: OUT-
4: OUT+
5: V+
6: LEVEL-
7: LEVEL+
8: V-
9 … 15: not assigned
Ambient temperatures
Storage
Operation
-20 … +60 °C
+5 … +40 °C
Relative humidity Max 80% up to +31 °C,
decreasing to 50% at +40 °C
Use Indoors only
maximum height 2000 m NN
D-SUB
QC HV+ HV–
CP400
17132
75
SHV
Weight 500 g
Dimensions

BG 805 812 BE (0206) CP400.oi 7
3 Installation
DANGER
The CP 400 may not be operated with high voltage supplies that out-
put dangerous levels of voltage (according to VDE 0411 Part 1 10.73
35.1a)and IEC 348 1978 9.5.1a)).
DANGER
Before opening the cover, disconnect all cables from the analyzer and
the CP 400.
The CP 400 must not be operated with the cover removed.
WARNING
The CP 400 has been designed for operation in clean, dry rooms. If
there is reason to believe it will be exposed to dripping condensed wa-
ter, take the necessary precautions to protect it.
WARNING
Be careful not to contaminate the high voltage part with fingerprints
etc.
Caution
Caution: magnetic fields
High-intensity magnetic fields caused by the permanent magnet of cold
cathode vacuum gauges, tools, magnetic clamps etc. in close
proximity to the ion source, channeltron or SEM can lead to mal-
functions of the instrument.
Protect the instrument from the influence of high-intensity magnetic
fields by arranging the system components appropriately or by
installing magnetic shields. Make sure the instrument is not affected by
any magnetic objects.
Remove the small connector plate for the analyzer (SEM connection)
(®&QMA 400 (BG 805 983 BE) or &QMA 125 (BG 805 988 BE)).
Remove the six screws (A) and take off the CP 400 cover.
A
3.1 Mounting
Procedure

8BG 805 812 BE (0206) CP400.oi
Unscrew the three screws (C) far enough that the entire cross section of the
sockets is free.
C
Carefully slide the CP 400 on the feedthroughs.
Secure with the four screws (B) and lock washers.
Make sure there is no mechanical load on the analyzer feed-
throughs.
B
Tighten the three screws (C).
C

BG 805 812 BE (0206) CP400.oi 9
Mount the cover and secure it with the six screws (A) and the lock washers.
A
DANGER
Before opening the cover, disconnect all cables from the analyzer and
the CP 400.
The CP 400 must not be operated with the cover removed.
To remove the CP 400 from the analyzer, proceed in reverse order.
4 Operation
®&QMA 4x0 (BG 805 983 BE) or
QMA 125 (BG 805 988 BE)
5 Maintenance
The CP 400 requires no special maintenance.
3.2 Dismanteling
Procedure

10 BG 805 812 BE (0206) CP400.oi
6 Troubleshooting
Before any trouble shooting of the CP 400 is started, please verify the
proper functioning of the SEM.
Problem Possible cause Correction
High voltage arcs, coronas or pulses
registered where no peaks occur when
the high voltage is on
Condensed water
or
High voltage unit contaminated
Open cover, dry thoroughly with hot air
(£50 °C).
Clean carefully.
No pulses counted High magnet fields in the area of the
SEM, caused e.g. by the permanent
magnet of cold cathode vacuum gauges,
magnetic clamps etc.
Remove the reason for the magnetic
fields or arrange them in a way to avoid
the influence on the SEM
For repairs please contact your local Pfeiffer Vacuum service center.
7 Storage
Caution
Caution: electronic component
Inappropriate storage (static electricity, humidity etc.) can damage
electronic components.
Store product in antistatic bag or container. Observe the correspond-
ing specifications in the Technical Data (®26).
8 Returning the Product
WARNING
Caution: forwarding contaminated products
Contaminated products (e.g. radioactive, toxic, caustic or biological
hazard) can be detrimental to health and environment.
Products returned to Pfeiffer Vacuum should preferably be free of
harmful substances. Adhere to the forwarding regulations of all
involved countries and forwarding companies and enclose a duly
completed declaration of contamination (®212).
Products that are not clearly declared as "free of harmful substances" are decon-
taminated at the expense of the customer.
Products not accompanied by a duly completed declaration of contamination are
returned to the sender at his own expense.

BG 805 812 BE (0206) CP400.oi 11
9 Disposal
DANGER
Caution: contaminated parts
Contaminated parts can be detrimental to health and environment.
Before beginning to work, find out whether any parts are contaminated.
Adhere to the relevant regulations and take the necessary precautions
when handling contaminated parts.
N
WARNING
Caution: substances detrimental to the environment
Products or parts thereof (mechanical and electric components,
operating fluids etc.) can be detrimental to the environment.
Dispose of such substances in accordance with the relevant local
regulations.
After disassembling the product, separate its components according to the
following criteria:
Contaminated components (radioactive, toxic, caustic or biological hazard etc.)
must be decontaminated in accordance with the relevant national regulations,
separated according to their materials, and disposed of.
Such components must be separated according to their materials and recycled.
Separating the components
Contaminated components
Other components

12 BG 805 812 BE (0206) CP400.oi
Declaration of Contamination
Legally binding declaration:
We hereby declare that the information on this form is complete and accurate and that we will assume any further costs that may
arise. The contaminated product will be dispatched in accordance with the applicable regulations.
Organization/company
Address Post code, place
Phone Fax
E-mail
Name
Date and legally binding signature Company stamp
1) or not containing any amount
of hazardous residues that
exceed the permissible ex-
posure limits
Process related contamination of product
toxic no q1) yes q
caustic no q1) yes q
biological hazard no qyes q2)
explosive no qyes q2)
radioactive no qyes q2)
other harmful substances no q1) yes q
The service, repair, and/or disposal of vacuum equipment and components will only be carried out if a correctly completed declaration has
been submitted. Non-completion will result in delay.
This declaration may only be completed (in block letters) and signed by authorized and qualified staff.
Copies:
Original for addressee - 1 copy for accompanying documents - 1 copy for file of sender
Harmful substances, gases and/or by-products
Please list all substances, gases, and by-products which the product may have come into contact with:
Trade/product name
Manufacturer
Chemical name
(preferably with formula)
Precautions associated
with substance
Action in case of human
contact
Description of product
Type
Part number
Serial number
Reason for return
Operating fluid(s) used (Must be drained before shipping.)
The product is free of any sub-
stances which are damaging to
health yes q
This form can be downloaded
from our website.
2) Products thus contami-
nated will not be ac-
cepted without written
evidence of decontami-
nation!

BG 805 812 BE (0206) CP400.oi 13
Notes

14 BG 805 812 BE (0206) CP400.oi
Notes

BG 805 812 BE (0206) CP400.oi 15
Notes

Berliner Strasse 43
D–35614 Asslar
Deutschland
Tel [phone]
Fax [phone]
Original: German BG 805 812 BD (0206) [email protected]
bg805812be www.pfeiffer-vacuum.de