Keller LEO5 Specifications

LEO 5

1

2

29,5

45



8

9

,

5

3

6

,

5

G 1/4

30

SW 27

High-resolution digital manometer

Features

• Insulated piezoresistive pressure sensor encapsulated in an oil-lled metal housing

• Robust, watertight stainless steel housing with safety glass front

• Large, backlit LC display

• Integrated rechargeable battery (USB chargeable)

• License-free KELLER software available to download

Functions

• High-resolution pressure measurements

• Pressure peak detection with 5 kHz sampling frequency

• Data logger

• Operated via capacitive touch keys

• Bar graph display

• Temperature display

• Min/max display

Typical applications

• Pressure testing

• Calibration

• Laboratory use

• Industrial applications

Accuracy

± 0,05 %FS

Total error band

± 0,1 %FS

Pressure ranges

from -1...3 bar to 0...1000 bar

LEO 5 manometer

40

27

8

,
1
8



30

SW 27

G 1/4

LEO 5 with rubber cover

45

29,5

5

,
9
8

1
4

2
1



30

SW 27

G 1/4

5

,
6
3

2
1

KELLER AG für Druckmesstechnik
CH-8404 Winterthur

[phone]
[e-mail]

KELLER Ges. für Druckmesstechnik mbH

DE-79798 Jestetten

[phone]
[e-mail]

KELLER America

Newport News, Virginia

1 877 253 5537
[e-mail]

Edition 05/2019

Subject to alterations
Companies approved to ISO 9001

www.keller-druck.com

Page 2 of 5

LEO 5 – Specications

Standard pressure ranges

Gauge pressure, PR

Absolute pressure, PAA

Absolute pressure, PA

Overload resistance

Display resolution

Key

-1…1 -1…3 -1…6 -1…10 -1…16 -1…30 bar rel.

0…2 0…4 0…7 0…11 0…17 0…31 0…61 0…101 0…161 bar abs.

0…300 0…400 0…700 0…1000 bar

8 8 20 20 40 60 200 200 300 600 800 1100 1100 bar

0,1 0,1 1 1 1 1 1 10 10 10 20 50 100 mbar

PR Gauge pressure Zero at atmospheric pressure
PAA Absolute pressure Zero at 0 mbar abs. (vacuum)
PA Absolute pressure Zero at 1000 mbar abs.

Performance

Accuracy @ RT (20...25 °C) ≤ ± 0,05 %FS

Total error band (0...50 °C) ≤ ± 0,1 %FS Max. deviation within the specied pressure and temperature range

Long-term stability ≤ ± 0,1 %FS Per year under reference conditions, yearly recalibration recommended

Degree of dependency on location ≤ ± 1,5 mbar

Accuracy of temperature measurement ± 1 °C typ.

Pressure range reserve ± 10%

Vacuum endurance ≤ 0,2 bar abs. Of operation ≤ 0,2 bar abs. upon request

Nonlinearity (BFSL), pressure hysteresis, non-repeatability,

zero point, amplication

Calibrated in vertical installation position
with pressure connection facing downwards

Temperature ranges

Compensated temperature range 0…50 °C

Media temperature 0…50 °C

Ambient temperature 0…50 °C

Storage temperature -20…70 °C

KELLER AG für Druckmesstechnik
CH-8404 Winterthur

[phone]
[e-mail]

KELLER Ges. für Druckmesstechnik mbH

DE-79798 Jestetten

[phone]
[e-mail]

KELLER America

Newport News, Virginia

1 877 253 5537
[e-mail]

Edition 05/2019

Subject to alterations
Companies approved to ISO 9001

www.keller-druck.com

Page 3 of 5

LEO 5 – Specications

Electrical data

Rechargeable battery Lithium-ion 4,2 V / 2,3 Ah

Battery life (standard) Up to 2000 hours of continuous operation

Battery life (peak mode) Up to 160 hours of continuous operation

Battery charging cycles > 300

GND case insulation > 10 MΩ @ 300 VDC

External interface USB (KELLER protocol)

Interface measuring rate 2 measurements per second

Electrical connection Mini USB-B

CE conformity as per 2014/30/EU (EMC) EN 61000-6-1 to -6-4, EN 61326-1 / EN 61326-2-3

Data logger

Logger function Records pressure, temperature and measuring time

Data storage ≥ 56 000 measured values

Recording modes Interval, event-controlled

Measuring rate ≥ 1 second, can be congured in 1-second increments

Display

Dimensions/appearance Width x height: 51,3 x 38,8 mm, also refer to Dimensions & options

Number of digits on LC display 2 rows with 5 digits each

Display mode Pressure + min/max or pressure + temperature, additional bar graph

Measuring rate (standard) 2 measurements per second

Measuring rate (peak mode) 5 kHz (reduced resolution and accuracy)

Congurable units of pressure

Additional units of pressure 5 user-dened units can be congured

[bar], [mbar], [Pa], [hPa], [kPa], [MPa], [PSI], [mH2O], [cmH2O], [inH2O], [ftH2O],
[mmHg], [inHg], [kp/cm2]

Mechanical data

Materials in contact with media

Pressure connection Stainless steel AISI 316L

Pressure transducer separating diaphragm Stainless steel AISI 316L

Pressure transducer seal (internal) FKM (Viton® type A)

Pressure connection seal (external) FKM (Viton® type A)

Other materials

Display housing Stainless steel AISI 304

Oil lling pressure transducer Silicone oil

Further details

Pressure connection

Diameter x height x depth

Weight (approx.) 430 g

Protection IP66

KELLER AG für Druckmesstechnik
CH-8404 Winterthur

[phone]
[e-mail]

KELLER Ges. für Druckmesstechnik mbH

DE-79798 Jestetten

G1/4, other options see available
pressure connections

Without rubber cover:
Approx. 82 x 135 x 40 mm

With rubber cover:
Approx. 90 x 139 x 45 mm

[phone]
[e-mail]

KELLER America

Newport News, Virginia

1 877 253 5537
[e-mail]

Edition 05/2019

Subject to alterations
Companies approved to ISO 9001

www.keller-druck.com

Page 4 of 5

LEO 5 – Dimensions & options

U

2 : 1

2

0

5

G1/2

1

4

1/4-18 NPT

1

5

2

0

2

0

5

1/4-18 NPT

1

5

2

0

2

0

5

2

0

2

0

5

6



G1/2

1

5

3

7

°



43,5

1

4

1

6

G1/2

2

0

5

6



1

2

G1/4

G1/2

1

4

1/4-18 NPT

1

5

1/2-14 NPT

2

0

1

3

3

5



1

5

3

7

°

50,5





43,5

1

6

G1/2

2

0

5

6



G1/2

1

4

1/4-18 NPT

1

5

1/2-14 NPT

2

0

1

3

3

5



50,5





43,5

G1/2

2

0

5

6



1/4-18 NPT

1

5

1/2-14 NPT

2

0

1

3

3

5



G1/4

G1/2

2

0

5

6



1/2-14 NPT

2

0

1

3

3

5



G1/4

G1/2

2

0

5

6



1

3

3

5



G1/4

U

2 : 1

U

2 : 1

Display External connection

Placement Display information

Placement Mini USB-B connection

Width x height:
51,3 x 38,8 mm

Digit height:
15 pt. large
10 pt. small

Available pressure connections

G1/4 (standard) G1/2 1/4 NPT 1/2 NPT G1/2 EN 837

0

2
1

G1/4

4
1

G1/2

5
1

1/4-18 NPT

0
2

1/2-14 NPT

G1/2 ush G3/4 ush 7/16-20 UNF Clamp DIN 32676 ush G1/4 EN 837

5
1

2

5

6





43,5

50,5



G1/2

G3/4

7/16-20 UNF-2A

3

7

°

Other pressure connections available upon request.

Optional advanced versions

Standard Detached sensors Bluetooth interface

Other customer-specic options

• Other pressure and temperature ranges

• Parts that come into contact with media made from Hastelloy, Inconel or titanium

• Customer-specic front covers

• Integration of application-specic calculations

• Customer-specic rmware

• Other sealing materials

• Other oil llings pressure transducer

KELLER AG für Druckmesstechnik
CH-8404 Winterthur

[phone]
[e-mail]

KELLER Ges. für Druckmesstechnik mbH

DE-79798 Jestetten

[phone]
[e-mail]

KELLER America

Newport News, Virginia

1 877 253 5537
[e-mail]

Edition 05/2019

Subject to alterations
Companies approved to ISO 9001

www.keller-druck.com

Page 5 of 5

LEO 5 – Software & accessories

«Logger 5» software

The Logger 5 software is suitable for the following
activities:

• Reading data from the autonomous data collec-

tor, e.g. LEO 5, and saving to a le on a PC

• Programming and conguring the data logger

• Active reading of the pressure and temperature
measured values in one-second intervals and
presenting the data in graphs

• Visualising and analysing measurements saved

in les

• Printing out reports or saving them as PDF les

• Exporting data and making it available to other
applications for further processing

• Performing level measurement calculations

Scope of delivery

«CCS30» software

Recording measured values

• Live visualisation

• Adjustable measuring and storage interval

• Export function

Conguration

• Call up of information (pressure and temperature

range, rmware version, serial number etc.)

“ManoCong” software

The ManoCong program is compatible with all

types of KELLER manometers and allows end cus-

tomers to congure the devices.

Range of functions

• Display of online measured values

• Conguring the wait period before automatic
shutdown

• Selecting standard pressure units

• Activating/deactivating pressure units

• Programming user-dened pressure units

• Restoring to factory settings

• Calibrating the manometer

Interface

The LEO 5 manometer has a USB interface. Details
of the communication protocols can be found at
www.keller-druck.com. Documentation, a Dynamic
Link Library (DLL) and various programming exam­ples are available to integrate the communication
protocol into your own software.

Software download

www.keller-druck.com/software

Plastic case USB cable KELLER test report Operating instructions D/E/F

LEO 5

Hochauösendes Manometer mit Peak- und Aufzeichnungs-Funktion

High Resolution Manometer with Peak and Record Function

Manomètre haute résolution avec fonctions d’enregistrement et de mesure des pics de pression

Hinweis: Entlüftungsmembrane nicht
eindrücken.

Note: Do not touch/press

ventilation lm.

Remarque: Ne pas appuyer sur la
membrane de ventilation.

Betriebsanleitung · Operating Instructions · Notice d’utilisation

Swiss Made

Accessories

Calibration certicate Rubber cover

Issued by the external
calibration laboratory of the
German accreditation body
DAkkS or the Swiss accredita­tion body SAS

For additional protection in
harsh environments

KELLER AG für Druckmesstechnik
CH-8404 Winterthur

[phone]
[e-mail]

KELLER Ges. für Druckmesstechnik mbH

DE-79798 Jestetten

[phone]
[e-mail]

KELLER America

Newport News, Virginia

1 877 253 5537
[e-mail]

Edition 05/2019

Subject to alterations
Companies approved to ISO 9001

www.keller-druck.com