INFICON CDG020D User Manual

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Capacitance Diaphragm Gauge

Porter™ CDG020D

Operating Manual

Incl. EC Declaration of Conformity

tina80e1 (2012-06)

1

Product Identification

In all communications with INFICON, please specify the information given on the product nameplate. For convenient reference copy that information into the space provided below.

Model:

 

PN:

 

SN:

 

V

W

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Validity

This document applies to products of the CDG020D series.

Part numbers of standard products are indicated below. OEM products have other part numbers and different parameter settings (e.g. customized measurement range) as defined in the corresponding ordering information.

3CAx-xxx-0x00

Receptacle

Flange

Unit

Measurement range (F.S.)

Accuracy

0 FCC

1 D-Sub, 9-pin

A Binder M12, 8-pin

1 DN 16 ISO-KF C 4VCR male D 4VCR female E 8VCR female

5 Torr (x 133 Pa; x 1.3 mbar)

6 mbar (x 100 Pa)

9 10 A 20 B 50 C 100 D 200 E 500

F 1000 (Torr only) G 1100 (mbar only)

3 1%

4 0.5%

The part number (PN) can be taken from the product nameplate.

If not indicated otherwise in the legends, the illustrations in this document correspond to gauges with D-Sub receptacle and the DN 16 ISO-KF vacuum connection. They apply to other gauges by analogy.

We reserve the right to make technical changes without prior notice.

All dimensions in mm.

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Intended Use

The Capacitance Diaphragm Gauges of the CDG020D series are intended for absolute pressure measurement of gases in their respective pressure ranges (→ 3).

The gauges can be operated in connection with an INFICON Vacuum Gauge Controller (VGC series) or another appropriate measuring unit.

Function

The Capacitance Diaphragm Gauge consists of a capacitive sensor element made of aluminum oxide ceramics and electronics which convert the capacitance into a DC voltage output signal.

The output signal is linear to the measured pressure and independent of the gas type.

Trademarks

Porter™

INFICON GmbH

VCR®

Swagelok Marketing Co.

Patents

EP 1070239 B1, 1040333 B1

US 6528008 B1, 6591687 B1, 7107855 B2, 7140085 B2, 7536915 B2

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Contents

Product Identification

2

Validity

3

Intended Use

4

Function

4

Trademarks

4

Patents

4

1

Safety

6

1.1

 

Symbols Used

6

1.2

 

Personnel Qualifications

6

1.3

 

General Safety Instructions

7

1.4

 

Liability and Warranty

7

2

Technical Data

8

3

Installation

13

3.1

 

Vacuum Connection

13

3.2

 

Power Connection

16

3.2.1

FCC68, 8-pin Connector

17

3.2.2

D-Sub, 9-pin Connector

18

3.2.3

Binder M12, 8-pin

19

4

Operation

20

4.2

 

Zeroing the Gauge

20

4.2.1

Zero Adjustment

20

5

Deinstallation

22

6

Maintenance, Repair

23

7

Returning the Product

24

8

Disposal

25

Further Information

26

ETL Certification

26

EC Declaration of Conformity

27

For cross-references within this document, the symbol (→ XY) is used, for cross-references to further documents, listed under "Further Information", the symbol (→ [Z]).

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INFICON CDG020D User Manual

1 Safety

1.1Symbols Used

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.

Notice

1.2Personnel Qualifications

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.

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1.3General Safety Instructions

Adhere to the applicable regulations and take the necessary precautions for the process media used.

Consider possible reactions with the product materials.

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 contaminated. Adhere to the relevant regulations and take the necessary precautions when handling contaminated parts.

Communicate the safety instructions to all other users.

1.4Liability and Warranty

INFICON 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 product documentation.

The end-user assumes the responsibility in conjunction with the process media used.

Gauge failures due to contamination or wear and tear are not covered by the warranty.

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2

Technical Data

 

 

 

Measurement range

→ "Validity"

 

 

Accuracy 1)

≤1% of reading

 

 

3CA3-xxx-xxxx

 

 

3CA4-xxx-xxxx

≤0.5% of reading

 

 

Temperature effect on zero

0.02% F.S./ °C

 

 

Temperature effect on span

0.02% of reading/ °C

 

 

Resolution

0.05% F.S.

 

 

Gas type dependence

none

 

 

Output signal analog

 

 

 

(measuring signal)

 

 

 

Voltage range

–0.2 … +10.24 V

 

 

Measuring range

0 … +10 V

 

 

Relationship voltage-pressure

linear

 

 

Output impedance

10 Ω (short-circuit proof)

 

 

Loaded impedance

>10 kΩ

 

 

Response time

100 ms

 

 

Gauge identification

Resistance 13.2 kΩ refer-

 

 

 

enced to supply common

 

1)Non-linearity, hysteresis, repeatability in the calibrated range at 25 °C ambient operating temperature without temperature effects after operation of 2 h.

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Supply

DANGER

The gauge may only be connected to power supplies, instruments or control devices that conform to the requirements of a grounded protective extralow voltage (SELV) and limited power source

(LPS), Class 2. The connection to the gauge has to be fused 2).

Supply voltage

 

at the gauge

+13 … +32 VDC

 

Class 2 / LPS

ripple

≤50 mVpp

Current consumption

<20 mA

Power consumption

≤0.3 W

Fuse required 2)

1 AT (slow), automatic reset

 

(Polyfuse)

The gauge is protected against reverse polarity of the supply voltage.

Electrical connection

 

3CAx-xxx-0xxx

FCC68/RJ45, 8-pin, socket

3CAx-xxx-1xxx

D-Sub, 9-pin, male

3CAx-xxx-Axxx

Binder M12, 8-pin, male

Sensor cable

 

3CAx-xxx-0xxx

8-pin plus shielding

3CAx-xxx-1xxx

9-pin plus shielding

3CAx-xxx-Axxx

8-pin plus shielding

Cable length

≤100 m (0.14 mm² conductor)

For longer cables, larger conductor cross-sections are required.

 

 

Grounding concept

 

 

 

 

 

Vacuum flange - signal common

→ "Power Connection"

 

 

 

Supply common - signal common

conducted separately; for dif-

 

 

 

 

ferential measurement (10 Ω)

 

 

 

 

 

 

 

 

2) INFICON controllers fulfill this requirement.

 

 

 

 

 

 

 

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