Hauber Elektronik HE250 Series User manual

Betriebsanleitung
englisch
Doc ID: M001-HE250 Stand: 2023-01-09
Vibration Monitoring Unit
Series HE250
•Vibration velocity ( mm/s, rms)
Vibration acceleration (g, rms)
•Bearing status parameter for roller bearing diag-
nostic
•ATEX / IECEx / UKEx Zones 2/22 and 1/21
•cULus OrdLoc / HazLoc Div 2
•2 potential-free switching contacts
•2 analogue current outputs: 4–20 mA
•Frequency range: 10 Hz –1000 Hz
1 Hz –1000 Hz
Date of manufacture:
Type description:
Serial no.:

HAUBER-Elektronik GmbH
Operating instructions
Vibration Monitoring Unit
Type HE250
Standard and ATEX / IECEx / UKEx
HE250
Version: 2023-01-09
Attention!
Prior to commissioning the product, the instruction manual must be read and un-
derstood.
All rights reserved, including rights to translation.
Subject to modifications.
Please contact the company with any questions:
HAUBER-Elektronik GmbH
Fabrikstraße 6
D-72622 Nürtingen
Germany
Tel.: [phone] / 21750-0
Fax: [phone]
[e-mail]
www.hauber-elektronik.de

HAUBER-Elektronik GmbH
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1 Contents
1Contents...................................................................................................................................................3
2Safety information....................................................................................................................................5
3Scope of this instruction manual..............................................................................................................6
4Vibration Monitoring Unit Type HE250 ....................................................................................................6
5Intended Use............................................................................................................................................6
6Scope of supply .......................................................................................................................................6
7Documents and Certificates.....................................................................................................................7
8Transfer of liability when operating in potentially explosive atmospheres...............................................7
9Overview of application areas..................................................................................................................8
10 Example labels.........................................................................................................................................9
11 Information on the cULus validity range ................................................................................................10
12 Functional safety instructions ................................................................................................................11
12.1 Safety level / key indicators ................................................................................................................11
12.2 General notes .....................................................................................................................................11
12.3 Instructions for the Fail Safe State......................................................................................................11
13 Technical data........................................................................................................................................12
13.1 General data.......................................................................................................................................12
13.2 Electrical data .....................................................................................................................................13
13.3 Operating range of the vibration monitoring unit ................................................................................14
13.4 Typical frequency response................................................................................................................15
13.5 Properties of the integrated cable.......................................................................................................16
13.6 Mechanical data..................................................................................................................................16
13.7 Housing dimensions............................................................................................................................17
14 Connection.............................................................................................................................................18
15 Functional description............................................................................................................................19
15.1 Operating conditions...........................................................................................................................19
15.2 Alarm and limit setting ........................................................................................................................19
15.3 Limit values and delay times...............................................................................................................20
15.4 Bearing status parameter for roller bearing diagnostic.......................................................................21
16 Assembly and disassembly....................................................................................................................24
16.1 General notes .....................................................................................................................................24
16.2 Fixing the vibration monitoring unit to the mounting surface..............................................................24
16.3 Variant HE250.02 (Zone 2 / 22)..........................................................................................................25
16.4 Tamper protection...............................................................................................................................26
17 Installation and commissioning..............................................................................................................27
17.1 General notes .....................................................................................................................................27
17.2 Earthing concept.................................................................................................................................27
18 Maintenance and repair.........................................................................................................................28
18.1 General notes .....................................................................................................................................28
18.2 Troubleshooting Table........................................................................................................................28
19 Transport, storage and disposal ............................................................................................................29

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20 Coding HE250........................................................................................................................................30
21 EU and UK Declaration of Conformity ...................................................................................................31

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2 Safety information
2.1 General
The safety instructions are intended to protect people and property from damage and hazards
that could arise as the result of improper use, incorrect operation or other misuse or devices,
especially in explosive areas. Therefore, please read the operating instructions carefully before
working on the product or operating it. The operating instructions must be accessible to operat-
ing personnel at all times.
Please make sure that all documents are present and complete before commissioning or per-
forming other work on the product. If the documents have not all been delivered in full or if fur-
ther copies are necessary, they can also be obtained in other languages.
The product is built according to the latest state of the art. However, hazards to people, machin-
ery and systems can still arise as the result of improper handling, unintended use or operation
and maintenance by persons inadequately trained on the product.
All those who are involved in the installation, operation and maintenance of the product in the
operator’s plant must read and understand the operating instructions.
The product may only be assembled, disassembled, installed and repaired by instructed, suffi-
ciently trained and authorised personnel.
2.2 Symbols used
This symbol indicates an explosion hazard.
This symbol indicates a hazard from electrical current.
This symbol indicates safety-related information.
This symbol indicates information unrelated to safety.

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3 Scope of this instruction manual
This instruction manual for the HE250-type vibration monitoring unit applies to the following ver-
sions:
HE250.00, HE250.01 and HE250.02
The variants are functionally identical. The variants HE250.01 and HE250.02 have
additional certifications and labels which permit use in potentially exclusive atmospheres.
For further information, see chapter "Overview of application areas” on page 8.
4 Vibration Monitoring Unit Type HE250
The HE250 type vibration monitoring unit is used to measure and monitor absolute bearing vib-
rations in machines in line with DIN ISO 10816. Furthermore, vibration monitoring determines a
bearing status parameter for the roller bearing diagnostic.
It offers the following features:
•Two limit values and associated delay timings can be adjusted separately.
•The two potential-free switching contacts will signal any exceeding of the relevant defined
limit values. This can be used to generate a pre-alarm and a main alarm.
•Measurement parameter: The rms value of the vibration velocity ( mm/s) or
The rms value of the vibration acceleration (g).
•Analogue current output: Interference-free DC signal from 4-20 mA, proportional to the
measuring range of the monitoring unit.
•Analogue current output: Interference-free DC signal from 4-20 mA, bearing status para-
meter
5 Intended Use
Type HE250 is used to protect machines and mechanical equipment against undue strong vib-
rations. It may only be used in accordance with the specifications listed in the data sheet. It is
used exclusively for measuring mechanical vibrations. Main fields of application: Fans, venti-
lators, blowers, electric motors, pumps, centrifuges, separators, generators, turbines and similar
oscillating mechanical equipment.
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
6 Scope of supply
All versions include:
•Vibration monitoring
•Cylinder head screw with hex socket, M8 x 20 mm
•Seal label
•Operating instructions

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7 Documents and Certificates
You can find the following documents and certificates for HE250 type at www.hauber-elektro-
nik.de where they can be viewed and downloaded:
•EU type examination certificate ATEX Zone 1 / 21, no.: UL 20 ATEX 2421 X Rev. 0
•Type examination certificate ATEX Zone 2 / 22, no.: UL 21 ATEX 2570 X
•IECEx certificate of conformity, no.: IECEx ULD 20.0022X
•UL certificate of conformity, no.: E507077-20210204
•UKEx certificate number: UL22UKEX2479X
•UKEx certificate number: UL22UKEX2480X
•EAC Declaration
•Functional safety certificate (SIL 2)
•Safety manual SIL2
8 Transfer of liability when operating in potentially explosive atmospheres
The owner of the system is exclusively liable for the appropriate configuration of the electrical
connections with respect to explosion protection regulations and correct commissioning.
If the system is installed by a sub-contractor on behalf of the owner, the system may only be
commissioned after the sub-contractor has issued written confirmation in the form of a certificate
of installation that the system has been installed correctly and professionally in accordance with
the applicable legal regulations.
The operator is obliged to notify the responsible authorities of the initial commissioning of explo-
sion-protected systems or system components and their re-commissioning following extensive
changes or maintenance.

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9 Overview of application areas
Coding
HE250.00.xx.xx.xx.00.xxx
HE250.00.xx.xx.xx.01.xxx
HE250.02.xx.xx.xx.00.xxx
HE250.02.xx.xx.xx.01.xxx
HE250.01.xx.xx.xx.00.xxx
HE250.01.xx.xx.xx.02.xxx
Connection
M12 connector
x
x
Integrated cable
x
x
x
x
Measuring head temperature TM
Ambient temperature TA
Restriction for the
range of application cULus:
-30 °C ≤ TM≤ 80 °C
-30 °C ≤ TA≤ 60 °C
-40 °C ≤ TM≤ 85 °C
-40 °C ≤ TA≤ 60 °C
x
x
x
-35 °C ≤ TM≤ 125 °C
-35 °C ≤ TA≤ 60 °C
x
x
-20 °C ≤ TM≤ 125 °C
-20 °C ≤ TA≤ 60 °C
x
Standard
IEC
x
x
x
x
x
x
Proc. Cont. Eq. Ord. Loc
E507077
x
x
x
x
Ex Zone 2 and 22
II 3G Ex ec IIC T4 Gc
II 3D Ex tc IIIC 135°C Dc
UL 21 ATEX 2570 X
x
x
IECEx
Ex ec IIC T4 Gc
Ex tc IIIC 135°C Dc
IECEx ULD 20.0022 Issue 0X
x
x
II 3G Ex ec IIC T4 Gc
II 3D Ex tc IIIC 135°C Dc
UL22UKEX2480X
x
x
Proc. Cont. Eq. Haz. Loc.
Class I, Division 2, Groups A, B, C and D, T4
Class II, Division 2 Groups F and G, T4
E516625
x
x
Ex ec IIC T4 Gc
Ex tc IIIC 135°C Dc
UL-BR 21.1250X
x
x
CCC
Ex nA IIC T4 Gc
Ex tD A22 IP66/67 T135°C
No: 2021122315114599
x
x
Ex Zone 1 and 21
II 2G Ex db IIC T4 Gb
II 2D Ex tb IIIC 135°C Db
UL 20 ATEX 2421 X
x
x
IECEx
Ex db IIC T4 Gb
Ex tb IIIC 135°C Db
IECEx ULD 20.0022 Issue 0X
x
x
II 2G Ex db IIC T4 Gb
II 2D Ex tb IIIC 135°C Db
UL22UKEX2479X
x
x
Ex db IIC T4 Gb
Ex tb IIIC 135°C Db
UL-BR 21.1250X
x
x
CCC
Ex d IIC T4 Gb
Ex tD A21 IP66/67 T135°C
No: 2021122315114599
x
x
Segurança
BR
O CP-002 9
Segurança
BR
O CP-002 9

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10 Example labels
Variant 1 - HE250.00.xx.xx.xx.00.000
Variant 2 - HE250.00.xx.xx.xx.01.xxx
Variant 3 - HE250.02.xx.xx.xx.00.000
Variant 4 - HE250.02.xx.xx.xx.01.xxx
Variant 5 - HE250.01.xx.xx.xx.00.xxx
Variant 6 - HE250.01.xx.xx.xx.02.xxx

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11 Information on the cULus validity range
In order to install the device according to the UL/CSA/IEC standard, the following information
must be observed.
Electrical protection
Devices must be protected by means of fuses, circuit breakers, overheating
protection, impedance-limiting switches or similar to ensure protection against
excessive power output if there is a fault in the device. Protection must be ap-
plied to supply lines and switching lines.
A circuit breaker suitable for 30V/3A according to UL Standard 489/CSA Stan-
dard (C22.2) no. 5/IEC 60947-2 must be installed near the device.
A fuse suitable according to UL Standard 248/CSA Standard (C22.2) no.
248/IEC 60127 must be installed near the device. The fuse must have a slow
triggering characteristic (“T”).
Limited temperature range
The following temperature ranges apply for variants with integrated cable:
Measuring head tempera-
ture
-30 °C ≤ TM≤ +80° C
Ambient temperature
-30 °C ≤ TAmb ≤ +60° C

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12 Functional safety instructions
12.1 Safety level / key indicators
The HE250 vibration monitoring hardware was tested by TÜV Süd. The results meet the criteria
according to SIL2 and Pl-d.
MTTF
984,898 hours = 112.43 years
DCavg
>90%
MTTFd
2,889,526 hours = 329.85 years = HIGH
CCF
95 (fulfilled)
Further key indicators and information can be found in the safety manual
12.2 General notes
A reboot of the vibration monitoring unit must be performed annually in order to
test the switching of potential-free switching contacts.
While the sensor is in configuration mode, the safety functions are deactivated.
12.3 Instructions for the Fail Safe State
When the power supply is switched on, the vibration monitoring unit will perform a self-test.
During operation, self-tests are performed automatically in cycles. If a self-test fails, the vibration
monitoring unit switches to the Fail Safe State.
In the Fail Safe State all status LEDs are lit, all potential-free switching contacts are open and
the analogue current output supplies 0 mA.

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13 Technical data
13.1 General data
Each sensor has one of the listed measuring and frequency ranges. Further
ranges on request.
Please indicate the measuring and frequency range in your request.
Measuring range:
0 … 8 mm/s rms (only for frequency range > 10 Hz)
0 … 10 mm/s rms
0 … 16 mm/s rms
0 … 20 mm/s rms
0 … 25 mm/s rms
0 … 32 mm/s rms
0 … 50 mm/s rms
0 … 64 mm/s rms
0 …128 mm/s rms
0 … 1 g rms
0 … 2 g rms
0 … 4 g rms
0 … 6 g rms
0 … 8 g rms
0 … 10 g rms
Measuring accuracy:
± 10% (as per DIN ISO 2954)
Transverse sensitivity:
< 5%
Frequency range:
10 Hz...1000 Hz (standard)
1 Hz...1000 Hz
Calibration point:
159.2 Hz and 90% amplitude of measuring range
Readiness delay:
10 sec Seconds
Bearing status parameter:
Weighted crest factor.
Crest factor 

Weight / categorised by vibration intensity diagram from DIN
ISO 13373-3
Maximum acceleration:
±16.5 g
Lifetime:
10 years
Tab. 1: General data

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13.2 Electrical data
Output signal:
1 x 4-20 mA (proportional to the measuring range)
1 x 4-20 mA (bearing status parameter)
Switching contact:
2 x potential-free switching contacts (pre- and main alarm)
Switching contact switching
load:
1A / 30 V DC
Power supply:
24 V DC ± 10%
Power input (max.):
100 mA
Load/output load (max.):
500 Ω
Automatic:
As soon as the vibration values fall below the limit values, the
potential-free switching contacts automatically re-energize.
Tab. 2: Electrical data

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13.3 Operating range of the vibration monitoring unit
The operating range is independent from the measuring range. It can be derived from the maxi-
mum acceleration, which is 16.5 g across all frequencies. The maximum measurable vibration
velocity is based on the formula
 
For sinusoidal vibration,  
 applies
Fig. 1: shows the operating range of the vibration monitoring unit, which is limited by the maxi-
mum measurable vibration velocity in mm/s depending on the frequency in Hz.
Fig. 1: Operating range diagram
1 Frequency in Hz
2 Vibration velocity in mm/s
3 Operating range of the vibration monitoring unit
Reading example:
Frequency
(Hz)
Maximum measurable vi-
bration velocity (mm/s)
250
103
400
64
1000
25
Tab. 3: Reading example of operating range

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13.4 Typical frequency response
10 Hz–1,000 Hz (standard)
The frequency response is recorded using a reference sensor.
• 4 Hz. . . 1200 Hz acceleration sensor
Fig. 2: Typical frequency response 10 Hz–1000 Hz
1 Frequency in Hz
2 Amplification in dB
1 Hz–1000 Hz
The frequency response is recorded using two reference sensors.
• 1 Hz. . . 10 Hz laser sensor
• 10 Hz. . . 1200 Hz acceleration sensor
Fig. 3: Typical frequency response 1 Hz–1000 Hz
1 Frequency in Hz
2 Amplification in dB

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13.5 Properties of the integrated cable
Cable type
Li9YC11Y 8x0.25 mm²
Conductor material
E-Cu stranded wire
Conductor insulation
PP 9Y
Coating
PUR 11Y Etherbase
Coating diameter
6.0 ± 0.2 mm
Temperature range
-40 °C … +90 °C fixed
-20 °C … +90 °C moving
Minimum bending radius
30 mm fixed
60 mm moving
Flame resistant
Yes, according to UL FT2
Halogen-free
Yes, according to VDE 0472 Part 815
Tab. 4: Technical data of the integrated cable
13.6 Mechanical data
Additional materials can be found in section "Coding" on page 30.
Housing material:
Stainless steel V2A, material no.: 1.4305 (standard)
Fastening:
Cylinder head Allen screw M8 x 20 mm
Thread pitch: 1.25 mm (standard)
Mounting:
Housing must be earthed via the M8 fastening
Cover tightening torque:
5 Nm
Measuring direction:
Along the fastening axis
Weight:
approx. 500 g
Protection class:
Cover and plug connection closed:
IP 66/67
Type 4X enclosure
Product is suitable for outdoor use
Max. humidity:
100%
Tab. 5: Mechanical data

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13.7 Housing dimensions
Fig. 4: Housing with M12 connector
Fig. 5: Housing with integrated cable
1 M12 connector
2 Measuring direction
1 Cable gland
2 Connecting cable
3 Measuring direction
All measurements in mm
Fig. 6: Housing with integrated cable and clamping sleeve base for metal protection hose
1 Cable gland
2 Connecting cable
3 Measuring direction
4 Clamping sleeve base for metal protection hose

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14 Connection
Version:
M12 connector
Pin 1:
24 V DC
Pin 2:
GND
Pin 3:
4-20 mA vibration amplitude
Pin 4:
4-20 mA bearing status parameter
Pin 5:
Potential-free switching contact 1 +
Pin 6:
Potential-free switching contact 1 -
Pin 7:
Potential-free switching contact 2 +
Pin 8:
Potential-free switching contact 2 -
Version:
Integrated cable
Pin 1:
white
24 V DC
Pin 2:
brown
GND
Pin 3:
green
4-20 mA vibration amplitude
Pin 4:
yellow
4-20 mA bearing status parameter
Pin 5:
grey
Potential-free switching contact 1 +
Pin 6:
pink
Potential-free switching contact 1 -
Pin 7:
blue
Potential-free switching contact 2 +
Pin 8:
red
Potential-free switching contact 2 -
Wiring diagram:
Fig. 7: Wiring diagram
1 Potential-free switching contact 1 (pin 5: + , Pin 6: -)
2 Potential-free switching contact 2 (pin 7: + , Pin 8: -)
3 Evaluation unit vibration amplitude
4 Evaluation unit bearing status parameter
The wiring diagram shows the alarm status or the current status!
Potential-free switching contacts 1 and 2 are open.

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15 Functional description
In an explosive atmosphere the vibration monitoring unit HE250 will only be o-
pened in a de-energized state.
The HE250 type has two limit values Lim1 and LIM2 and the corresponding delay times, which
can be adjusted separately. If the defined limit value is exceeded and after the set delay time
has expired, the corresponding potential-free switching contact is opened. This can be used to
generate a pre-alarm and a main alarm.
A subsequent fall below the limit value is also signalled at potential-free switching contacts 1
and 2, i.e. the respective switching contact automatically closes.
The HE250 type also has an analogue current output. This supplies direct current of 4-20 mA
proportional to the vibration amplitude.
15.1 Operating conditions
Operating state
Reading
Switching
contacts
LED status
OK
≤ Limit value
Closed
green
WARNING
> Limit value, delay time runs
Closed
green + yellow
ALARM
> Limit value, delay time ex-
pired
Open
red
Fail Safe State
0 mA
Open
red + yellow + green
De-energized
0 mA
Open
All LEDs off
Tab. 6: Operating conditions
15.2 Alarm and limit setting
By pressing the "Save Config" button, the current configuration is displayed by the LEDs around
the HEX switches. For further information, see chapter "Limit values and delay times” on page
20.
The limit values and delay times are calibrated using the respective HEX switch. As soon as a
switch position is changed, all LEDs start flashing. Press and hold the "Save Config" button for
three seconds to save the configuration. Acceptance of the configuration is signalled by steady
lighting up of the LEDs in the selected HEX switch position.
The configuration can only be accepted if LIM1 ≤ LIM2.
After about five minutes the LEDs turn off automatically.
While the sensor is in configuration mode, the safety functions are deactivated.

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15.3 Limit values and delay times
The SET rotary button has 16 positions, representing the limit value of an alarm. The measur-
ing range of the vibration monitoring unit is divided into 16 linear steps.
In general:   
 
Example: Limit setting
Measuring range:
0-32 mm/s
SET rotary button Pos.:
8 (9)
Limit value:
16 mm/s (18 mm/s)
SET-
Position
Limit values (mm/s)
Measu-
ring
range
0 –8
mm/s
0 –10
mm/s
0 –16
mm/s
0 –20
mm/s
0 –25
mm/s
0 –32
mm/s
0 –50
mm/s
0 –64
mm/s
0 –128
mm/s
0
0.0
0
0
0
0
0
0.00
0
0
1
0.5
0.625
1
1.25
1.563
2
3.13
4
8
2
1.0
1.25
2
2.5
3.125
4
6.25
8
16
3
1.5
1.875
3
3.75
4.688
6
9.38
12
24
4
2.0
2.5
4
5
6.25
8
12.50
16
32
5
2.5
3.125
5
6.25
7.813
10
15.63
20
40
6
3.0
3.75
6
7.5
9.375
12
18.75
24
48
7
3.5
4.375
7
8.75
10.938
14
21.88
28
56
8
4.0
5
8
10
12.5
16
25.00
32
64
9
4.5
5.625
9
11.25
14.063
18
28.13
36
72
10
5.0
6.25
10
12.5
15.625
20
31.25
40
80
11
5.5
6.875
11
13.75
17.188
22
34.38
44
88
12
6.0
7.5
12
15
18.75
24
37.50
48
96
13
6.5
8.125
13
16.25
20.313
26
40.63
52
104
14
7.0
8.75
14
17.5
21.875
28
43.75
56
112
15
7.5
9.375
15
18.75
23.438
30
46.88
60
120
Tab. 7: Limit values for vibration velocities