Operating M
ManualIncl. EU Declara
ation of Conform
mityGaugge HeeadDI200
DI2000tinb26e1-a(2018-03)

1Product Identification

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

ValidityThis document applies to products with part numbers
390-354DI200
390-226
DI2000The part number (PN) can be taken from the product nameplate.
We reserve the right to make technical changes without prior notice.
All dimensions in mm.

Indented Use

The gauge heads are intended for the measurement of absolute or relative
pressures according to the technical data. The gauge heads may be used either inconnection with the supply and display units from INFICON (VGC50x series) or inconnection with dc sources up to 30 V max. and separate tap for the measured
values.

Design and Function

The gauge heads contain a ceramics diaphragm as the sensing element. The
flexure of this diaphragm is a measure for the pressure.
The diaphragm itself is part of a capacitance cell. The flexure of the diaphragmcaused by process pressure variations is converted by the temperature compensated electronics in the gauge in to a standard measurement signal of 4 to 20 mA.
A 5 m long cable is attached to the gauge head.
The gauge head is equipped with a Viton (FPM) seal between the ceramics sensor
and the stainless steel housing.
"Zero" and "FS (full scale)" have been pre-adjusted at the factory so that the output
signal is 4 mA for p = 0 and 20 mA for the end of the gauge’s range.

Scope of Delivery

1 × Gauge Head (incl. 5 m long gauge head cable)
1 × Operating Manual German
1 × Operating Manual English2tinb26e1-a(2018-03)

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Contents
Product Identification
Validity
Indented Use
Design and Function
Scope of Delivery

22222Contents

31 Safety
1.1 Symbols Used
1.2 Personnel Qualifications
1.3 General Safety Instructions
1.4 Liability and Warranty

444442 Technical Data

53 Installation
3.1 Connecting the Gauge Heads
3.2 Maximum Length of Cable and max. Permissible Load Resistance
3.3 Zero Adjustment
3.3.1 Preparations
3.3.2 Alignment with a Multirange Meter

6679994 Options

118 Returning the Product119 Disposal

12Appendix
A: Conversion Table

1212

EU Declaration of Conformity

13For cross-references within this document, the symbol (→  XY) is used.

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1 Safety
1.1 Symbols Used
Symbols for residual risks

DANGER
Information on preventing any kind of physical injury.

WARNING
Information on preventing extensive equipment and environmental damage.

CautionInformation on correct handling or use. Disregard can lead to malfunctions or
minor equipment damage.

Notice

1.2 Personnel Qualifications
Skilled personnel
All work described in this document may only be carried out by persons whohave suitable technical training and the necessary experience or who have been
instructed by the end-user of the product.

1.3 General Safety
Instructions•Adhere to the applicable regulations and take the necessary precautions for theprocess media used.
Consider possible reactions with the product materials (→  5).

•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.

1.4 Liability and Warranty

4INFICON assumes no liability and the warranty is rendered null and void if the enduser 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.

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2 Technical Data
Measurement range
DI200DI2000
Overload range, max. (abs)
DI200
DI2000Operating temperature range1)
Measurement uncertainty(± temperature error)
Temperature error in % FS *) / 10 K
Zero drift
Sensitivity drift
Principle of measurement
Gauge head supply
Supply voltage
Dead volume
Vacuum connection
Leak rate
WeightType of protection
Materials in contact with themedium1))*

0.1 … 200 hPa │mbar
1 … 2000 hPa │mbar
0.5 MPa │ 5 bar
1 MPa │ 10 bar
0 … 60 °C
0.20 % FS *)0.100.15
capacitive
Two-wire system
4 … 20 mA+24 V (dc) typ.
operating range 12 …30 V
3 cm3
DN 16 ISO- KF-6-1<1×10 mbar·l·s≈0.55 kg
IP 44
stainless steel 1.4305, Al2O3 (96%)
ceramics, FPM

Sum of linearity, hysteresis and reproducibility
FS = Full scale

Dimensions [mm]Fig. 1 Dimensional drawing; dimensions in mm

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3 Installation
Please unpack the gauge head immediately even if it is to be taken in to operation
at a later date.
Check that the gauge head is complete and carefully examine it visually to ensurethat no damage has occurred during transport.
If any damage is discovered, report it immediately to the forwarding agent andinsurer. If the damaged part has to be replaced, please get in touch with the orders
department.

3.1 Connecting the Gauge
Heads

The gauge head should preferably be installed standing on its flange. Inclined
installation (max. horizontally) is possible. However, this affects the Zero, and thezero adjustment may have to be corrected.
Suspended installation is not permissible because then condensate may collect inthe head. This affects the measurements and may damage the head.
In order to improve interference rejection the shield of the connection cable has
been made accessible through a black cable with a ring at the plug on theequipment side. This additional cable is connected to the ground screw on theoperating unit.
For connection to operating units VGC50x use the DI signal converter.

Pin assignment

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7

–
Measurement signal 4 … 20 mA (–)
Measurement range coding–Sensor type coding
Supply 12 … 30 V (dc)
ShieldFig. 2Gauge head connector(view on to the solderedside)

View on to the gauge headFig. 3 View on to the gauge head with removed plastic housing

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View

Abb. 4 View
When wanting to extend the gauge head cable and when wanting to connect thegauge heads to other operating units, the gauge head cable may be replaced. For
this unscrew the two mounting screws and detach the plastic housing, see Fig. 4.
The signal lines of the sensor cable are connected via a terminal block (see Fig. 3) tothe electronics unit.
The shield of the sensor cable is connected via a RC element to a solder lug on thehousing.
The connected sensor cable can be removed by loosening the screws on the terminal block and by separating the shield connection from the RC element so that a
new self- made sensor cable may be connected.
When connecting the new gauge head cable correct polarity must beobserved. For this also refer to Fig. 3. The + supply (12 V to 30 V) and –(4 to 20 mA signal) are marked accordingly on the terminal block.

3.2 Maximum Length ofCable and max.
Permissible LoadResistance

The maximum supply voltage for the gauge heads lies in the range between 12 V
and 30 V. It is recommended to use a supply voltage of 24 V.
The length of the standard gauge head cable is 5 m. In case of longer lengths thetotal cable resistance must be observed. The total resistance depends on thesupply voltage. See Fig. 5.
The total resistance is given by:

Fig. 5 Total resistance as a function of the supply voltage

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The total resistance (Rges) is defined by the maximum permissible resistance fromdisplays, line resistances and recorders in series with the signal line (4-20 mA).
The load resistor is the resistor across which the voltage appears which is
proportional to the measurement signal.
The internal resistance (RI) of the voltage source is very small compared to thetotal resistance (Rges) and can therefore be neglected.

Example for the calculation of
the maximum permissible totalresistanceMax. measurement current (nominal range)
Min. permissible voltage at the gauge head

0.020 A
12.0 V

Headroom for mains voltage variations, hum amplitudes, source resistance etc. is
not taken into account.

Fig. 6 Application example
RB (load)[Ω]RL (line.)[Ω]US (supply.)[V] min.

50

113.02

50

2

13.04

50

5

13.10

50

10

13.20

50

20

13.40

50

50

14.00

50

100

15.00

50

200

17.00

500

122.02

500

2

22.04

500

522.105001022.20

500

20

22.40

500

50

23.00

500

100

24.00

500

200

26.00

Fig. 7 Test assembly

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3.3 Zero Adjustment
3.3.1 Preparations

Tools

Alignment preparations

Zero output of the gauge heads is aligned in the factory and remains stable overlong periods of time.
Depending on the operating conditions and the required precision (especially whenthe gauge head is used in the lowest range) it is recommended to check the Zeropoint from time to time and correct it, if necessary.
•

Screwdriver, 2 mm•

Voltage source, 24 V (dc) ± 10 % or corresponding operating unit•

Multirange meter with corresponding current range or operating unit•

Vacuum pump with connection fittings or vacuum system•

Vacuum gauge e.g. Pirani Standard Gauge

Connect the gauge head correctly to the vacuum pump or the vacuum system andevacuate to:•<10-2 hPa │mbar for DI200-1• <10 hPa │mbar for DI2000(check for example with a Pirani Standard Gauge)

Unscrew the two mounting screws and detach the plastic housing from the gauge
head (see Fig. 4).

3.3.2 Alignment with a
Multirange Meter

Connect the gauge head to the voltage source and the multirange meter according
to Fig. 7.
Wait until the system is stable (5 minutes approx.) The measurement current
should be 4 mA ± 8 µA under vacuum.
Turn potentiometer until the required measurement current is obtained.

Fig. 8 View on to the gauge head with removed plastic housing
Install the plastic housing again.
If required remove the gauge head from the test assembly.

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9TableOutput voltage – Pressure

10Signal
output
[mA]

DI200
[hPa]
[mbar]

DI2000[hPa][mbar]

Signaloutput
[mA]

DI200
[hPa]
[mbar]

DI2000[hPa][mbar]

4.00

00

12.80

110

1100

4.80

10100

13.60

120

1200

5.60

20

200

14.40

130

1300

6.40

30

300

15.20

1401400

7.2040

400

16.00

150

1500

8.00

50500

16.80

160

1600

8.80

60

600

17.60

170

1700

9.60

70

700

18.40

180

1800

10.40

80

800

19.20

190

1900

20.00

200

2000

11.20

90

900

12.00

100

1000

DI200:

I = (p × 8/100) + 4

DI2000:I = (p × 8/1000) + 4

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4 Options
Ordering No.
DI Signal Converter(for operating the Gauge Head with a Vacuum Gauge
Controller of the VGC50x series)

398-470

5 Returning the Product

WARNING
Forwarding contaminated products
Products returned to INFICON for service or repair should, if possible,be free of harmful substances (e.g. radioactive, toxic, caustic or microbiological). Otherwise, the type of contamination must be declared.
Adhere to the forwarding regulations of all involved countries and forwarding companies and enclose a completed contamination declaration (Form under www.inficon.com).
Products that are not clearly declared as "free of harmful substances" are decontaminated at the expense of the customer.
Products not accompanied by a duly completed declaration of contamination arereturned to the sender at his own expense.

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116 Disposal

DANGER
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.

WARNING
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 localregulations.

Separating the components

After disassembling the product, separate its components according to thefollowing criteria:

Contaminated components

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.

Other components

Such components must be separated according to their materials and recycled.

AppendixA:

Conversion Table
Pressure units(vacuum technology)

mbar
BarPa
hPa
kPa
Torrmm HG

mbar

Bar

PahPa

kPa

13
1×100.01
110

1×10-31-5
1×10-3
1×100.01100
1×105110031×1011×103
0.01
1100.1100
1×10-3
0.1
1Torrmm HG
0.75
750
7.5×10-3
0.75
7.5

1.332

1.332×10-3

133.32

1.33320.133211 Pa = 1 N/m2

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EU Declaration of Conformity
We, INFICON, hereby declare that the equipment mentioned below comply withthe provisions of the following Directives:• 2014/30/EU, OJ L 96/79, 29.3.2014(EMC Directive; Directive relating to electromagnetic compatibility)•2011/65/EU, OJ L 174/88, 1.7.2011(RoHS Directive; Directive on the restriction of the use of certain hazardous substances in electricaland electronic equipment)

ProductGauge Head
DI200
DI2000Standards

Harmonized and international/national standards and specifications:• EN 61000-6-2:2005(EMC: generic immunity standard for industrial environments)• EN 61000-6-4:2007 + A1:2011(EMC: generic emission standard for industrial environments)• EN 61010-1:2010(Safety requirements for electrical equipment for measurement, control and laboratory use)

• EN 61326-1:2013; Group 1, Class B(EMC requirements for electrical equipment for measurement, control and laboratory use)

Manufacturer / Signatures

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INFICON AG, Alte Landstraße 6, LI-9496 Balzers
26 March 2018

26 March 2018

Dr. Bernhard Andreaus
Director Product Evolution

Alex Nef
Product Manager13

Notes14

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15Original: German tinb26d1-a (2018-03)

t i nb26e1- a

LI–9496 Balzers
LiechtensteinTel +423 / 388 3111
Fax +423 / 388 3700
reachus@inficon.com
www.inficon.com