Gamma Vacuum DIGITEL QPC User manual

DIGITEL QPC Controller
Instruction manual
www.gammavacuum.com
900031_J Original instructions

Copyright notice
© Gamma Vacuum 2021. Part of the Atlas Copco Group
Trademark credit
Gamma Vacuum and the Gamma Vacuum logo are trademarks of 2700 4th
Avenue East, Ste 100, Shakopee, MN 55379, USA
Disclaimer
The content of this manual may change from time to time without notice.
We accept no liability for any errors that may appear in this manual nor do
we make any expressed or implied warranties regarding the content. As far
as practical we have ensured that the products have been designed and
constructed to be safe and without risks when properly installed and used
in accordance with their operating instructions.
We accept no liability for loss of prot, loss of market or any other indirect
or consequential loss whatsoever.
Product warranty and limit of liability are dealt with in our standard terms
and conditions of sale or negotiated contract under which this document is
supplied.
You must use this product as described in this manual. Read the manual
before you install, operate, or maintain the product.

Contents
1. Safety and compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1. Denition of Warnings and Cautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2. Safety symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3. Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4. Safety notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2. General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1. Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3. Unpacking the controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1. Inspect for any obvious damage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2. Check the equipment received. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1. Required items. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2. Installation procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5. Controller conguration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1. Number of HV channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2. Output voltage polarity type for each HV channel. . . . . . . . . . . . . . . . . . . . . . 14
5.3. Type of the HV output connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4. Number of output connectors per HV channel. . . . . . . . . . . . . . . . . . . . . . . . 14
5.5. Communication interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.6. DIGITEL QPC Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6. Pressure measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7. Front panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1. Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8. HV control or ion pump operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.1. Prior to using an ion pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.2. Prior to turning on HV and starting an ion pump. . . . . . . . . . . . . . . . . . . . . . 18
8.3. Turn HV on and o. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9. Touchscreen user interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.1. Home screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.2. Supply setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.3. Supply setup advanced options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.4. System setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9.5. Display setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9.6. Analog output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Page 3900031_J

9.7. Digital input setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.8. Digital output setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.9. Relay setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9.10. Serial port setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.11. Probus setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.12. Ethernet interface setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.13. TSP sublimation view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.14. TSP sublimation view with controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.15. TSP setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.16. TSP pressure window setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.17. TSP advanced options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10. Error/status codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.1. Error example ‘STANDBY, Error 02, vacuum loss, detected’. . . . . . . . . . . . . 32
11. Rear panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
11.1. Connector pair, HV output connectors and safeconn connectors. . . . . . . 34
11.2. Connector J115, NET (Probus, optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
11.3. Connector J113, CTRL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
11.4. Connector J114, ETH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
11.5. Connector J104, Misc I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
11.6. Connector J112, SER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12. Serial communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12.1. Gamma protocol over serial connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12.2. Gamma protocol response packet structure over serial connection. . . . . 39
12.3. CRC checksum example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
12.4. Examples - Gamma protocol over serial connection. . . . . . . . . . . . . . . . . . . 42
12.5. Gamma protocol commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13. Ethernet communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
13.1. Gamma protocol over ethernet connection. . . . . . . . . . . . . . . . . . . . . . . . . . 49
13.2. Example - Gamma protocol over ethernet connection. . . . . . . . . . . . . . . . . 50
14. Technical specications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
15. Warranty and service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.1. Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.1.1. Cleaning procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.1.2. Service requests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.1.3. Direct support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.2. Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
15.2.1. General terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
15.2.2. Warranty claims. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
15.3. Returning material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
15.3.1. Return procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Page 4900031_J

15.3.2. Required documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
16. Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Page 5900031_J

List of Figures
Figure 1: QPC front panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 2: Home screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3: Home screen (control buttons visible). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 4: Supply setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 5: Supply setup advanced options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 6: System setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 7: Display setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 8: Analog output screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 9: Digital input setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 10: Digital output screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 11: Relay setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 12: Serial port setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 13: Probus setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 14: Ethernet setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 15: TSP sublimation view screen (no control buttons). . . . . . . . . . . . . . . . . . . . 29
Figure 16: TSP sublimation view screen with controls. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 17: TSP setup screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 18: TSP pressure window screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 19: TSP advanced options screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 20: Display error/status codes screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 21: QPC rear panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Page 6900031_J

1. Safety and compliance
1.1. Denition of Warnings and Cautions
NOTICE:
For safe operation from the start, read these instructions carefully before
you install or commission the equipment and keep them safe for future use.
Read all the safety instructions in this section and the rest of this manual
carefully and make sure that you obey these instructions. The equipment
must only be operated and maintained by trained personnel in the proper
condition and as described in this instruction manual.
Obey local and state requirements and regulations. If you have any
questions about safety, operation or maintenance of the device, please
contact our nearest subsidiary.
Important safety information is highlighted as warning and caution
instructions. Obey these instructions.
WARNING:
If you do not obey a warning, there is a risk of injury or death. Dierent
symbols are used according to the type of hazard.
CAUTION:
If you do not obey a caution, there is a risk of minor injury, damage to
equipment, related equipment or process.
NOTICE:
Information about properties or instructions for an action which, if ignored,
will cause damage to the pump or the system.
We reserve the right to change the design and the stated data. The
illustrations are not binding.
Keep the instructions for future use.
Page 7900031_J
900031_J - Safety and compliance

1.2. Safety symbols
The safety symbols on the products show the areas where care and
attention is necessary.
The safety symbols that follow are used on the product or in the product
documentation.
Warning/Caution
An appropriate safety instruction must be followed or caution
to a potential hazard exists.
Warning - Dangerous voltage
Identies possible hazards from dangerous voltages.
Warning - Heavy object
Identies a possible hazard from a heavy object.
Warning - Read the manual
1.3. Warnings
WARNING:
Shock hazard. Can
cause injury or death.
Remove power before
servicing.
AVERTISSEMENT :
Risque de choc
électrique. Peut
entraîner des blessures,
voire la mort. Coupez
l'alimentation électrique
avant l'entretien.
警告:
感電事故。怪我や死亡事
故の原因になります。保
守を行う前に、電源を切
ってください。
ADVERTENCIA:
Peligro de descarga.
Pueden producirse
lesiones o incluso la
muerte. Desconecte la
alimentación antes de
realizar cualquier tarea
de mantenimiento.
WARNUNG:
Stromschlaggefahr. Es
besteht Verletzungs-
und Todesgefahr. Vor
Wartungsarbeiten vom
Strom trennen.
警告：
触电危险。可能导致人员
伤亡。维护之前先断电。
Page 8900031_J
900031_J - Safety and compliance

WARNING:
Heavy object. To avoid
muscle strain or back
injury, use lifting aids
and proper lifting
techniques when
removing or replacing.
AVERTISSEMENT :
Objet lourd. Pour éviter
les blessures
musculaires ou
dorsales, utilisez des
engins de levage et des
techniques de levage
appropriées lors du
retrait ou du
remplacement d’un
objet lourd.
警告:
重量のある装置、部品。
筋挫傷、背中や腰の怪我
を避けるために、取り外
しや交換はリフトを使用
した適切な吊り上げ方法
で行ってください。
ADVERTENCIA:
Objeto pesado. Para
evitar distensiones
musculares o lesiones
en la espalda, utilice
ayudas para la
elevación y técnicas de
elevación adecuadas
durante la retirada o
sustitución del equipo.
WARNUNG:
Schwerer Gegenstand.
Um
Muskelverspannungen
oder
Rückenverletzungen zu
vermeiden, verwenden
Sie beim Entfernen
oder Ersetzen
Hebehilfen und
geeignete
Hebetechniken.
警告：
重物。为了避免肌肉劳损
或背部损伤，执行卸除或
更换操作时，应使用起重
工具，并采用适当的起重
技巧。
WARNING:
Read and understand
operator’s manual
before using this
machine. Failure to
follow operating
instructions could result
in injury or damage to
equipment.
AVERTISSEMENT :
Lisez et comprenez le
mode d’emploi avant
d’utiliser cette machine.
Le non-respect des
instructions d’utilisation
peut entraîner des
blessures ou
endommager
l’équipement.
警告:
本機械を使用する前に、
取扱説明書をよく読み、
十分に理解してくださ
い。操作手順に従わない
場合、怪我や機器が損傷
する原因となることがあ
ります。
ADVERTENCIA:
Lea y comprenda el
manual del operador
antes de utilizar este
equipo. Si no se siguen
las instrucciones de
funcionamiento,
podrían producirse
lesiones o daños en el
equipo.
WARNUNG:
Sie müssen diese
Bedienungsanleitung
lesen und verstehen,
bevor Sie diese
Maschine benutzen. Die
Nichtbeachtung der
Gebrauchsanleitung
kann zu Verletzungen
oder Schäden an der
Anlage führen.
警告：
使用本设备之前，请阅读
并理解操作员手册。不遵
守操作手册说明可能导致
人员受伤和设备损坏。
1.4. Safety notices
1. Gamma vacuum controllers designed for ion pump operation are capable
of delivering 7 kV under open-circuit or low-pressure operating
Page 9900031_J
900031_J - Safety and compliance

conditions. Gamma vacuum products are designed and manufactured to
provide protection against electrical and mechanical hazards for the
operator and the area surrounding the product.
2. Installation procedures are for use by qualied, authorized personnel
who have experience working with 50 V or greater. To avoid personal
injury, do not perform any installation or service unless qualied to do so.
3. There are no serviceable parts inside the controller power-supply, and
voltages as high as 7 kV may be present. Do not open the supply case
under any circumstances. In the event of the power‑supply requiring
attention, return it to Gamma Vacuum.
4. Do not disconnect the high-voltage cable with the power on. After turning
the power o, allow at least one minute before disconnecting electrical
equipment.
5. Do not operate the controller without a proper electrical ground or near
water. The controller may be damaged and its safety reduced if it is
operated outside of its specications.
Page 10900031_J
900031_J - Safety and compliance

2. General information
The DIGITEL QPC is an ion pump and TSP power supply controller. It is
designed to operate up to four ion pumps and up to two Titanium
Sublimation Pumps (TSP).
It can accommodate any ion pump size up to 1200 L/s.
The front panel display provides direct readout of the ion pump voltage,
current, and pressure.
Individual model specication information is located on our website at:
www.gammavacuum.com.
WARNING:
Do not use unauthorized parts. Such parts may compromise safety. Contact
Gamma Vacuum with any questions.
CAUTION:
Read this entire manual and follow installation instructions. Failure to do so
may cause injury and may void warranty.
2.1. Approvals
The DIGITEL QPC meets the intent of Directive 2014/30/EU for
Electromagnetic Compatibility and Low Voltage Directive 2014/35/EU for
product Safety. Compliance was demonstrated to the following
specications as listed in the Ocial Journal of the European Communities:
▪EN61326-1:2013
▪EN61326-2-1:2013
▪EN61000-4-2, -3, -4, -5, -6, -8 and -11
▪EN 61010-1:2010
▪UL 61010-1:2012
▪CAN/CSA-C22.2 No. 61010-1:2012
Page 11900031_J
900031_J - General information

3. Unpacking the controller
3.1. Inspect for any obvious damage
If the controller is damaged in any way, a claim should be led with the
carrier immediately and notication given to customer centre where the
order originated and/or Gamma Vacuum.
If equipment must be returned for inspection or repair, obtain a return
authorization from Gamma Vacuum prior to shipping. Contact Gamma
Vacuum for authorization and return instructions.
3.2. Check the equipment received
Make sure that all items shipped have been received. If any items are
missing, notify the carrier and Gamma Vacuum. Save all packaging material
for inspection.
Page 12900031_J
900031_J - Unpacking the controller

4. Installation
The DIGITEL QPC is a 1/2 rack controller. It can be joined with a second QPC,
or it can be installed with a 19 in. rack mount kit (pn 310116). When installing
rack mount kit, use M4 x 8 mm screws, quantity 11. (Longer screws will
damage electronics inside the unit).
Maintain at minimum a 2.52 in. (64 mm) clearance behind controllers for
cable bend radius and proper airow.
Maintain at minimum 0.125 in. (3 mm) gap between vertically mounted
controllers.
CAUTION:
This equipment uses a detachable power supply cord. Do not replace with
inadequately rated supply cords.
4.1. Required items
You will need the following items to install the controller:
1. A 3-wire, detachable, universal input power cable (included).
2. A High Voltage (HV) cable for each pump (ordered separately).
3. A safety ground cable for each pump (ordered separately).
4.2. Installation procedure
1. Place the controller in its location and secure as necessary.
2. Connect the safety ground cable to the pump and the safety ground stud
at the DIGITEL rear panel.
3. Connect the high voltage cable to the ion pump and the high voltage
connector on the DIGITEL rear panel (J501 - J504).
4. If high voltage cable has an optional safeconn feature (HV interlock), an
additional connector is part of the high voltage cable. Connect it to the
safeconn connector (J401 - J404), otherwise, use safeconn shorting jumper
cable to connect to safeconn connector (J401 - J404). Safeconn interlock
must be satised, otherwise HV cannot be turned on.
5. Verify correct input voltage requirements. Connect mains AC power cable
to input power receptacle on the controller rear panel.
Page 13900031_J
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5. Controller conguration
Following conguration options are specied at the time of order:
5.1. Number of HV channels
DIGITEL QPC can have up to four independent HV channels.
5.2. Output voltage polarity type for each HV channel
Following options are available:
▪Positive polarity output voltage channel
▪Negative polarity output voltage channel
5.3. Type of the HV output connectors
Following are standard HV connector types for J501 - J504:
1. SHV-10 kV (matching safeconn connector type is SMB style).
2. Fischer (matching safeconn connector type is mini banana style) other HV
connector types are available per request.
5.4. Number of output connectors per HV channel
There can be more than one HV output connector tied to the same HV
channel. In such case, connectors are tied in parallel.
For example, a valid conguration is HV output connectors J501 and J502
tied to HV channel one.
In this conguration, all associated safeconn connectors (J401 and J402),
must be satised before channel one HV can be turned on.
5.5. Communication interface
Controller comes standard with Serial and Ethernet interface.
Probus interface is optional.
Page 14900031_J
900031_J - Controller configuration

5.6. DIGITEL QPC Setup
Page 15900031_J
900031_J - Controller configuration

6. Pressure measurement
Pressure value is determined using following equation
Where:
I - Current in amps.
V - Voltage in volts.
U - Pressure units conversion factor (1 for Torr, 1.33 for mbar and 133 for
Pascal).
F - Congured pump pressure factor. Typically set to 1. See Supply setup on
page 19.
S - Congured pump size in L/s. See Supply setup on page 19.
Page 16900031_J
900031_J - Pressure measurement

7. Front panel
Figure 1. QPC front panel
7.1. Description
Front panel contains:
▪Main power on and o rocker type switch. Soft type switch. Input power
still partially present when in o position.
▪Main power indicator lamp. Color green. When illuminated indicates input
power present.
▪7” TFT WVGA (800 x 480) Color LCD, 16:9 aspect ratio, touchscreen
capable. Primary user interface.
▪Four HV On and O indicator lamps. One per HV channel. Color red. Note,
all four lamps installed even when controller is congured with less than
four HV channels.
Page 17900031_J
900031_J - Front panel

8. HV control or ion pump operation
8.1. Prior to using an ion pump
Conrm following:
▪Rough pump down to 1 x 10-4 torr or less (the lower the better).
1 x 10-6 torr is recommended. See Rough Pump user manual for details.
NOTE:
Use the full extent of available rough pumping before starting an ion pump to
extend pump’s lifetime, improve system ultimate pressure, and get accurate
current readings.
▪Evacuate the Vacuum System.
▪Ensure contaminants do not exist in the system.
▪If necessary (i.e. ion pump exposed to atmospheric pressure) bake the ion
pump and system into roughing pump to achieve lowest pressure. See
ion Pump user manual for details.
8.2. Prior to turning on HV and starting an ion pump
▪Verify high voltage cable is installed and connecting controller’s high
voltage (HV) output connector (rear panel, J501 - J504) to the ion pump.
▪Verify controller and connected ion pumps are grounded using
redundant ground wire.
▪Verify safeconn interlock is satised.
If high voltage cable has optional safeconn interlock feature, an additional
connector is part of the high voltage cable. Connect it to controller’s
safeconn connector (J401 - J404). If high voltage cable does not have
safeconn interlock feature, use safeconn shorting jumper cable to connect to
controller’s safeconn connector (J401 - J404).
Safeconn interlock must be satised, otherwise HV cannot be turned on.
If safeconn interlock is not satised, controller will display error 20 (safeconn
interlock not satised) for that HV channel.
▪Verify proper pump size is congured. HV cannot be turned on if pump
size is set to 0. By default pump size is set to 0.
If pump size is set to zero, controller will display error 22 (pump size not
congured) for that HV channel.
8.3. Turn HV on and o
Turning HV on and o can be achieved:
▪Using front panel touchscreen.
▪Using remote communication (serial, ethernet or probus).
▪Using rear panel connector J104, Misc. I/O. (Digital Inputs).
Page 18900031_J
900031_J - HV control or ion pump operation

9. Touchscreen user interface
9.1. Home screen
Touch anywhere on the screen to invoke button controls.
Available setup:
View TSP - Switches home screen to TSP view.
Button is available only if remote TSP controller is connected to the QPC
controller.
Menu - Invokes main menu.
Exit - Clears screen and hides control buttons.
Turn On and O - Turns HV on and o for respective HV channel.
Figure 2. Home screen
Figure 3. Home screen (control buttons visible)
9.2. Supply setup
Available setup:
Pump name - Congures pump name. Maximum of 15 characters.
Page 19900031_J
900031_J - Touchscreen user interface

Pump size (L/s) - Congures pump size (0 - 1200).
Auto restart - Congures supply auto HV restart at controller power up (on
and o).
Output voltage (V) - Congures output voltage target level (3 - 7 kV).
Current limit (mA) - Congures output current limit (2 - 125 mA).
Congure advanced options - Invokes advance options setup.
Figure 4. Supply setup screen
9.3. Supply setup advanced options
Available setup:
Main display value - Congures home screen large value (current, voltage, or
pressure).
Pressure factor - Congures pump pressure factor.
Congure foldback (o) - Congures and enables or disables the foldback
function. When foldback function is enabled and pump pressure falls below
dened foldback pressure point, the output voltage is reduced to dene
foldback output voltage.
Figure 5. Supply setup advanced options
Page 20900031_J
900031_J - Touchscreen user interface