DISATAC CATALOGElectronic Tachometers for monitoring the rotational
speed of turbochargers and high-speed rotating machineryDISATAC - Electronic tachometers

CONTENTS
Introduction .................................................................... 4
DISATAC configuration guide.................................... 6
Product selection guide
Pickups and magnets ........................................................ 7
Electronic units .................................................................. 7
Meters................................................................................ 7
Cables................................................................................ 7
Special accessories .......................................................... 7
Selection chart for pickups and magnets .......................... 8
Selection chart for DISATAC electronic units .................. 10
Connection options for DISATAC systems ...................... 11

Pickups and magnets in the 72C-series .............. 13
Pickups and magnets, 2-pole version
Introduction ...................................................................... 14
Mounting .......................................................................... 14
General specifications .................................................... 14
Detailed specifications:- Pickup types 72C03, 72C05 and 72C09 .................. 15- Magnet types 72C31 and 72C35 ............................ 15
Pickups and magnets, 4-pole version
Introduction ...................................................................... 16
Mounting .......................................................................... 16
General specifications .................................................... 16
Detailed specifications:- Pickup types 72C06, 72C08, 72C16 and 72C18 .... 17- Magnet types 72C21, 72C22, 72C23 and 72C24 .... 17

Electronic units in the 72B-series .......................... 23
General description ........................................................ 24
Minimum speed of rotation .............................................. 24
Maximum speed of rotation ............................................ 24
Specifications:- Electronic unit type 72B30........................................ 25- Electronic unit type 72B50........................................ 26- Electronic unit type 72B60........................................ 27- Electronic unit type 72B61........................................ 28- Electronic unit type 72B62........................................ 29- Electronic unit type 72B63........................................ 30

Electronic units in the 72H-series .......................... 31
General description ........................................................ 32
Minimum speed of rotation .............................................. 32
Specification .................................................................... 32

DISATAC meter DQ 96 .............................................. 35
Description ...................................................................... 36
General specifications .................................................... 36
Mounting specifications .................................................. 36

Cables, connectors and accessories .................... 37
Cable types and cable length limitations ........................ 38
Nomogram for calculating maximum length of cable ...... 39
Detailed specifications .................................................... 40
Junction Box .................................................................... 40
Electronic limit switch ........................................................41
Service and Troubleshooting ............................ 44-45

Pickups in the 72K-series, multi-pole .................. 19
Introduction ...................................................................... 20
Mounting .......................................................................... 20
Specifications:- Pickup types 72K01, 72K02, 72K05 and 72K06 ...... 20
Mounting examples ........................................................ 21

Certificates .............................................................. 46-51
Ordering procedure& list of current DISATAC representatives
Ordering procedure ........................................................ 52
List of DISATAC representatives...................................... 52
Ordering form .................................................................. 54

Introduction to DISATACDISATAC is a series of rugged, noncontact electronic tachometers that monitor rotational speed in all types of highspeed turbochargers and other kinds ofrotating machinery.
Only high-quality materials are usedin the manufacture of DISATAC tachometers to ensure optimal, reliable andlong-lasting performance in harsh working environments. Except in 72H..
systems, the measurement principle isbased on a magnet mounted on a rotating part inducing an alternating voltage
in a DISATAC pickup placed a specificdistance from the magnet (or, in 72H..
systems, another rotating part). As theequipment requires no mechanical connection to the rotating machine elements, there is no mechanical wear.
The DISATAC electronic units convert the induced pickup voltage to ananalogue output current proportional to
the rotational speed. The electronic units
can have built-in pointer instruments(meters). The alternative is an interface
to an external meter, recorder, data-logger or equivalent. Meters indicating rotational speed can be placed several
hundred metres from the pickup, e.g. on
the bridge of a large vessel.
All pickups and magnets are compatible with the specifications of majorinternational turbocharger manufacturers.
DISATAC meets the ship-classification societies’ requirements for quality,
reliability and safety and is therefore
specified as standard by most manufacturers of large diesel engines and turbochargers in the marine and off-shore
industries.

4

Introduction to DISATAC

72B DISATAC systems
The rotating magnet mounted on theshaft of the turbocharger induces analternating voltage in the pickup. The
electronic unit converts the signal to a
current proportional to the rotational
speed. The output is able to drive one ormore meters, dataloggers or recorders
and a current loop, depending on themodel. 72 B-series does not require
external power supply.

72H DISATAC systems
The pickup senses the induction frome.g. a gearwheel and the electronic unit
converts the signal to a current proportional to the rotating speed. The 72H
systems can also be used with 72C pickups/magnets. The 72H systems require
an external power supply.

5

DISATAC Configuration Guide

Magnets

Magnets inthe 2-pole
72C-series:

Pickups

Pickups inthe 2-pole
72C-series:- Type 72C31- Type 72C35- Type 72C03- Type 72C05- Type 72C09

See page: 14

See page: 14

Magnets in
the 4-pole
72C-series:

Pickups inthe 4-pole
72C-series:- Type 72C21- Type 72C22- Type 72C23- Type 72C24- Type 72C06- Type 72C08- Type 72C16- Type 72C18

See page: 16

See page: 16

CablesElectronic
Units

Cables

9006A1661 (2 m)
9006A1660(Specify length)

Electronic
units in the
72B-series:
Meter- Type 72B30- Type 72B50- Type 72B60- Type 72B61- Type 72B62- Type 72B63

9140K0012(Specify length)

See page: 23

9006A1660(Specify length)

Pickups 72K,
Multi pole 1)

See page: 199072K1431 (2 m)
9072K1430(Specify length)

Electronic
units in the
72H series 2):- Type 72H01- Type 72H03
See page: 31

1) Magnet not required2) Can also be used with 72C pickups & magnets

6- Type DQ 96

See page: 36

9006A1661 (2 m)- Type 72K01- Type 72K02- Type 72K05- Type 72K06

Meter

9140K0012(Specify length)

Product selection guideSelecting pickup and magnet
There are two series of DISATAC pickups.
••

The 72C-series, with two types ofpickup/magnet: 2-pole and 4-pole.
These pickups and their corresponding magnets are for use with both the
72B-series and 72H01 DISATAC
electronic units.
The 72K-series. These pickups canonly be used with the 72H01 or
72H03 DISATAC electronic units.
They do not require a rotating magnet, but are simply positioned next toany gear-wheel, perforated disk,
shaft with bosses or equivalent. The
rotating part must be of ferrous material, so that a signal is generated.

The type of pickup to select depends on
the application and type of equipment.
The DISATAC range of pickups and magnets are compatible with a large range ofturbochargers, as shown in the
pickup/magnet selection chart on page 8.

Detailed specifications of pickups andmagnets are provided on page 13-21.

Selecting an electronic unit
There are two electronic unit systems in
the DISATAC programme: the 72Bseries and the 72H-series. Their
compatibility with different pickups isshown in the selection chart “DISATAC
electronic units” on page 10 and the configuration guide on page 6.
IMPORTANT: If you order a replacement
unit, please indicate the code number
shown on your present electronic unit.
Every DISATAC electronic unit isindividually calibrated to the customer’s
specifications before shipment and ismarked with a calibration number,
9072B... (or 72B...), both on the outsideof the box and on the electronic chassis.

Detailed specifications of electronic units
are provided on page 23-34.

Selecting a DISATAC meter
DISATAC meters are all manufactured
for use with the other DISATAC elements. Any DISATAC meter can be usedin any DISATAC system. When orderinga meter please specify:•••

Type number of the meter.
Full-scale RPM reading.
Special requests for meter markings(e.g. a red-coloured section).

(NB: If the meter type is not specified,the DQ 96 type is delivered as standard.)

Detailed specifications of DISATAC
meters are provided on page 35-36.

Selecting cables
The standard cable length supplied is 2
metres. If longer cables are required,please specify the length on the orderform. The DISATAC configuration guideon page 6 shows the cables to select forthe connections between pickups andelectronic units, and electronic units andmeters.

Detailed specifications of cables andconnectors are provided on page 37-41.

Special accessories
A number of accessories for DISATAC
systems are available, e.g.:
•
•
•
•
•
•

Pickup cable connectors
Junction box for pickup cables
Coaxial pickup connector for 72B30
and 72B60-63 electronic units
Electronic limit switch with 2 setpoints and isolated relay outputs
Selector switches; 2-, 4- or 8-channels
Disatac selector switch - 2, 4 or 8
input channels

Please contact Dantec Dynamics A/S for
further information about special accessories.

How to order
DISATAC products are available on oureshop - http://shop.dantecdynamics.com/

7Selection chart for pickup and magnet
Turbocharger
supplier

Turbocharger
type

Variants

Pickup/magnet
72B system

Pickup72H system

Full scale
RPM

ABB
(BBC)
Switzerland

TPL 73
TPL 77
TPL 80
TPL 85

TPL/TPS turbochargers aredelivered from ABB with pickup
built in (2 pulses per rev.)

not applicable
not applicable
not applicable
not applicable

To be connectedwithout the special
ABB pickup
amplifier!

30,00025,00020,00017,500VTR160WE*), WF
WE*), WP (until Feb. 1975)
WE*), WP (from Mar. 1975)

72C06 / 72C22

VTR161

WP

VTR184-6-001
VTR200VTR201WE*)
WE*), WP (until Aug. 1974)
WE*), WP (from Sep. 1974)

72K02

50,00072K06

55,00072C06 / 72C25**)

40,000
72K01
72K02
72K02

40,000

VTC214

72K06

40,000

VTC214-6-001

72K06

45,000VTR214

72K02

40,000VTR214-6-001

72K06

45,000VTR250VTR251

WP

WE*), WF
WE*), WP (until Dec. 1969)
WE*), WP (from Jan. 1970)

72C06 / 72C22

30,000
72K01
72K02

WP

VTC25472K02

30,000

72K02

40,000

VTC254-6-001

72K02

40,000VTR254

72K02

40,000VTR254-6-001

72K02

40,000VTC304

72K06

35,000VTC304-6-001

72K02

30,000VTR30472K02

30,00072K06

30,000VTR304-6-001
VTR320VTR321PE1, LS1
PE2, LS2
WE*), GF
WF (until Jul. 1976)
G2F,WF (from Aug. 1976)
WE*), WP (until Jun. 1974)
WE*), WP (from Jul. 1974)

72C18 / 72C21
72C06 / 72C23
72C06 / 72C23
72C08 / 72C23

VTR354-6-001

WP
PE1, LS1
PE2, LS2

72C18 / 72C21

VTR400WE, WZ, WF, GF (until Jul. 1976)
WE, WF, G2F (from Aug. 1976)

72C06 / 72C21
72C08 / 72C21

VTR401

WZ, WF, G2F

VTR454
VTR454-6-001
VTR500VTR501

WE, WZ, WF, GF, GF1(until July 1976)
WZ, WZ6, WF, G2F(from Aug. 1976)
WZ, WZ5, WZ6, WF, G2F

25,00072K01
72K02

VTR354

72K02

25,00072K02

30,00072K06

30,00020,00072C08 / 72C21

20,00072C08 / 72C21

20,00072C18 / 72C21

25,00072C06 / 72C21

16,00072C08 / 72C21
72C08 / 72C21

16,00072C08 / 72C21

16,00072C18 / 72C21

18,00072C06 / 72C22
72C08 / 72C22

12,00072C18 / 72C21

18,00072C06 / 72C22
72C08 / 72C22

12,000VTR714

72C08 / 72C22

12,000VTR714-6-001

72C18 / 72C22

15,000VTR564
VTR564-6-001
VTR630WE, WZ, WF*), GF, GF1
WF*), G2F

VTR630-6-001
VTR631*) Please check with ABB documentation

8

50,00072K01
72K02

WE, WZ, WZ5, WF*), GF1
WF*), G2F**) Discontinued. Please contact Dantec Dynamics for availability.

Selection chart for pickup and magnet
Turbocharger
supplier

Variants

Pickup/magnet
72B system

VTR750WE, WZ, WF*), GF
WZ5, WZ6, WF*), G2F

72C06 / 72C22
72C08 / 72C22

10,000VTR751WZ
WZ5, WZ6, WF, G2F

72C06 / 72C22
72C08 / 72C22

10,000VTR900GF

72C08 / 72C26**)

9,000

GTS50
GTS58
GTS67.5
GTS258
GTS26872C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22

11,00010,0008,000
9,000
10,000Gebr. SULZER
Switzerland

TCA85
RT67 / TC75
RT56 / TC60
RT45 / TC45

72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22

9,000
12,00015,00020,000BURMEISTER& WAIN
Denmark

T330G, T330GB
T440G, T440GB
T540G
T550GB
T680G
T780G
T1080F/G

72C06 / 72C24
72C06 / 72C24
72C06 / 72C24
72C06 / 72C24
72C06 / 72C24

18,00016,00015,00014,00012,00010,0008,000

ELSINORE
SHIPYARD
Denmark

TH5
TH10
TH13
TH20
TH22
TH23
TH40
TH44
TH45
TH46

72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22

25,00021,00021,00017,00017,00017,00014,00014,00014,00014,000MAN
Germany

NR 20
NR 24
NR 26
NA 34
NA 40
NA 48
NA 57
NA 70
NA 83

ABB
(BCC)
continued

RATEAUFrance(Turbochargers
are delivered withpickup andmagnet built in.)

NAPIER
England

Turbocharger
type

Pickup72H system

72K02
72K02

DISATAC 72B.. series and
72H01 electronic units arecompatible with MAN turbochargers with built-in
pickup/magnet. Output fromthis pickup corresponds tothe output from a DISATAC
72C.. 2-pole pickup.

HP.100MS.100HP.200MS.200HP.210MS.210HP.400MS.400410A
HP.500MS.500510A
HP.600MS.600610A
NA450
NA550 Mk. 1R
NA550 Mk. 2
NA650
NA455
NA555
NA655
S410B
S510B
S610B

Full scale
RPM

45,00040,00035,00030,00025,00020,00018,00015,00012,00072C03 / 72C34 *)72C03 / 72C34 *)72C03 / 72C35
72C03 / 72C35
72C03 / 72C35
72C03 / 72C35
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72K02
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22
72K02
72K02
72C08 / 72C22
72C06 / 72C22
72C06 / 72C22
72C06 / 72C22

30,00025,00025,00020,00025,00020,00015,00012,00014,00012,00010,00012,000
9,000
8,000
9,000
18,00014,00015,00012,00020,00015,00012,00018,00012,00012,000* Discontinued. Please contact Dantec Dynamics for availability

9Selection chart for DISATAC electronic units
DISATAC electronic units
Detailed specifications of electronic units are provided on page 24 - 34.
Type of pickup in
the turbocharger

72C-series(2 and 4-pole) a)

72K-series (multipole)

Electronic unit

72B30

72B50

72B60

72B61

72B62

72B63

72H01

72H03

Built-in meter inelectronic unit:

No

Yes

No

No

No

No

No

No

1

2

3

2

2

2

2 b)

2 b)

Outputconnections:No. of external
DISATACmeter(s)Recorder0-90 mV DC

Yes

Datalogger
0-90 mV DC

Yes c)Yes

Yes c)

4-20 mA std.
current loop
(passive)
Power supply: d)Yes
Self-powered

Self-powered

Self-powered

Self-powered

Self-powered

Self-powereda) Other pickup types: Please check with Dantec Dynamics before ordering.
(MAN turbochargers with built-in pickup correspond to a 2-pole pickup)b) Maximum impedance of meters connected in series: 9 kΩ.
c) The 72H01 unit has a recorder/datalogger output of 0-100 mV DC.
d) Electronic units in the standard 72B-series are powered by the energy generated by the magnetic pickup.
They therefore require no external power supply.
NB: Degree of protection: IP65 for all electronic units.

10

Yes90-270 V AC, 50/60 Hz

CONNECTION OPTIONS FOR DISATAC SYSTEMS

72B50

72B30

The DISATAC 72B30 electronic unit has facilities forconnecting one DISATAC meter.

The DISATAC 72B50 electronic unit has a built-in pointerinstrument (meter) as well as facilities for connecting
one or two additional DISATAC meters.

72B60

The DISATAC 72B60 electronic unit is designed for panel mounting.
It has provision for connecting one, two or three DISATAC meters.

72B61

The DISATAC 72B61 electronic unit is a recorder version for panel mounting,with provision for connecting one recorder and one or two DISATAC meters.

11

CONNECTION OPTIONS FOR DISATAC SYSTEMS

72B62

The DISATAC 72B62 electronic unit is a datalogger version for panel mounting, with
provision for connecting one datalogger and one or two DISATAC meters.

72B63

The DISATAC 72B63 electronic unit is a meter version for panel mounting. It has provision for connecting one or two
DISATAC meters and an additional recorder output with an isolated passive 2-wire transmitter (4-20 mA DC current loop).

72H-series

The DISATAC 72H-series electronic unit is a meter version for panel mounting. It has provision for connecting one or two
DISATAC meters and an additional recorder/datalogger output (72H01) or 4-20 mA output (72H03).

12

Pickups and magnets in the 72C-series

Pickups and magnets in the 72C-series (2-pole version)

Introduction
The DISATAC 72C-series pickup programme comprises pickups withmagnets, for use with the 72B- and 72Hseries DISATAC electronic units. The
72C-series includes two types of pickups/magnets - 2-pole and 4-pole.
DISATAC 72C-series pickups andmagnets meet the specifications of
Lloyd’s Register of Shipping-Test Specifications 1 (1996) - ENV4.

General specifications
72C-series (2-pole version)
Full scale range

Between 4,000 RPM and 100,000 RPM, depending on type.

Minimum speed of rotation

500 RPM.

Material

Anodised aluminium.

Internal resistance

2800 Ω.

Connectors

Coaxial type, SO-239.

Pickups and magnets:
2-pole versions
Any magnet in this group can be combined with any 2-pole pickup.
A wide range of turbochargers is
prepared for use with DISATAC. The
type of pickup and magnet requiredde-pend on the application and type ofturbocharger.
(Please refer to selection chart for pickups and magnets on page 8).

Mounting
The 72C-series 2-pole pickups are available with metric thread (M36 x 2) or a
British Standard pipe thread (½” and 1”
BSP). They are installed by mounting
the magnet on the shaft and mounting
the pickup in a hole in the bearing coverand centred on the magnet.
The magnet is mounted by screwing
it on a thread on the rotating shaft end
and securing it, using the Belleville
washers supplied. The pickup is mounted in a tapped, threaded hole, typicallyin the bearing cover. Be sure that the
pickup is mounted centrally in relation to
the magnet. The pickup position must be
adjusted to a distance of 1-3 mm fromthe magnet.
The following procedure may be followed
to set the correct distance between pickup and magnet:
Warning
It is absolutely necessary that there is
no movement of the rotating partwhen this adjustment is made.
Otherwise the pickup and/or magnet
may be damaged.

14

Figure 1. Mounting 2-pole 72C-series pickups and magnets.

1. Mount the pickup in the threaded holeand rotate it gently clockwise until itjust touches the magnet.
2. Now rotate the pickup one complete
turn counterclockwise.
3. Fasten the counter-nut without rotating the pickup.

DETAILED SPECIFICATIONS (72C-SERIES, 2-POLE VERSIONS)

Pickups 72C-series (2-pole versions)

Magnets 72C-series (2-pole versions)ThreadTemperature range

Weight½’’ BSP–30°C to +100°C

0.06 kgType 72C05

1” BSP–30°C to +100°C

0.14 kgType 72C09

M36 x 2–30°C to +100°C

0.16 kgType 72C03

ThreadTemperature range

WeightType 72C31

M8–30°C to +150°C

0.01 kgType 72C35

11/16” x 1/14”–30°C to +150°C

0.01 kgAll dimensions are in mm, unless otherwise stated.

All dimensions are in mm, unless otherwise stated.

Torque moment: 8 Nm

Figure 2. 2-pole pickup type 72C03.

Figure 5. 2-pole magnet type 72C31.

Torque moment: 75 Nm

Figure 3. 2-pole pickup type 72C05.

Figure 6. 2-pole magnet type 72C35.

Figure 4. 2-pole pickup type 72C09.

15

Pickups and magnets in the 72-series (4-pole versions)Introduction
The DISATAC 72C-series pickup programme comprises pickups withmagnets for use with the 72B- and 72Hseries DISATAC electronic units. The
72C-series includes two types of pickups/magnets - 2-pole and 4-pole.
DISATAC 72C-series of pickups andmagnets meets the specifications of
Lloyd’s Register of Shipping-Test Specifications 1 (1996) - ENV4.

General specifications
72C-series (4-pole version)
Full scale range

Between 4,000 RPM and 100,000 RPM.

Minimum speed of rotation

500 RPM.

Material

Anodised aluminium.

Internal resistance

900 Ω.

Connectors

Coaxial type, SO-239.

Pickups and magnets:
4-pole versions
The 4-pole pickups consist of two types- one designed for normal temperatures(-30°C to +100°C) and one for the hightemperature range (-30°C to +135°C).
Any magnet in this group can be combined with any 4-pole DISATAC pickup.
A wide range of turbochargers is prepared for use with DISATAC. The type of
pickup and magnet required depend on
the application and type of turbocharger.
(Please refer to selection chart for pickups and magnets on page 8).

Mounting
The pickups can be specified with either
metric thread (M36 x 2) or British
Standard pipe thread (1” BSP). The
pickups are installed by mounting themagnet on the shaft and mounting the
pickup in the bearing cover, centred on
the magnet.
The magnet is mounted by screwing
the magnet on a thread on the rotating
shaft end and securing it, using the
Belleville washers supplied.
The pickup is mounted in a tapped,threaded hole, typically in the bearing
cover. Be sure that the pickup is mounted centrally in relation to the magnet.
The pickup
position must be adjusted to a distancefrom the magnet of 1.4 mm ±0.6 mm.
The following procedure may befollowed to set the correct distance
between pickup and magnet:
Warning
It is absolutely necessary that there
is no movement of the rotating partwhen this adjustment is made.
Otherwise the pickup and/or magnet
may be damaged.

16

Figure 7. Mounting 4-pole 72C-series pickups and magnets.

1. Mount the pickup in the threaded holeand rotate it gently clockwise until itjust touches the magnet.
2. Now rotate the pickup half a turn
(72C06 and 72C16) or 4/6 of a turn
(72C08 and 72C18) counterclockwise- use e.g. the counter-nut as a sort ofdial.
3. Fasten the counter-nut without rotating the pickup.

DETAILED SPECIFICATIONS (72-SERIES, 4-POLE VERSIONS)

Pickups 72C-series (4-pole versions)

Magnets 72C-series (4-pole versions)ThreadTemperature range

WeightType 72C06

1” BSP–30°C to +100°C

0.16 kgType 72C21

Type 72C08

M36 x 2–30°C to +100°C

0.18 kgType 72C22

M12–30°C to +150°C

0.045 kgType 72C16

1” BSP–30°C to +135°C

0.16 kgType 72C23

3/4” BSW–30°C to +150°C

0.045 kgType 72C18

M36 x 2–30°C to +135°C

0.18 kgType 72C24

M12 (tap)–30°C to +150°C

0.045 kgAll dimensions are in mm, unless otherwise stated.

ThreadTemperature range

WeightM8–30°C to +150°C

0.045 kgAll dimensions are in mm, unless otherwise stated.

Torque moment: 8 Nm

Figure 8. 4-pole pickup type 72C06.

Figure 12. 4-pole magnet type 72C21.

Torque moment: 25 Nm

Figure 9. 4-pole pickup type 72C08.

Figure 13. 4-pole magnet type 72C22.

Torque moment: 75 Nm

Figure 10. 4-pole pickup type 72C16.

Figure 14. 4-pole magnet type 72C23.

Torque moment: 25 Nm

Figure 11. 4-pole pickup type 72C18.

Figure 15: 4-pole magnet type 72C24.

17

18

Pickups in the 72K-series (multi-pole). Magnet not required.

Pickups in the 72K-series (multi-pole). Magnet not required.

Introduction
The DISATAC 72K-series pickups are
only for use with the 72H-series of electronic units. They do not need a magnet
attached to the rotating component.
They are simply positioned next to any
gearwheel, perforated disk, shaft withbosses or equivalent, made of a ferrous
material that generates a signal in the
pickup.
A wide range of turbochargers is
prepared for use with DISATAC. The
type of pickup required depends on theapplication and type of turbocharger.
(Please refer to selection chart for pickups on page 8).

Specifications
72K-series (multi-pole)
Full scale range

Between 3,600 and 600,000 pulses/min., e.g. for a six-holedisk between 600 RPM and 100,000 RPM, depending on type.

Material

Anodised aluminium, stainless steel.

Internal resistance

1200 Ω.

Connectors

UHF twin type, SO-264.

Maximum cable length

25 m (pickup/electronic unit).

Minimum measurable speed

The minimum RPM measurable depends on the type of armatureand the pickup armature configuration.

Mounting
The pickup obtains its signals from thepart of the machine - e.g. a gearwheel,
perforated disk, shaft with bosses or
equivalent - being measured, themachine part acting as an armature.
The armature must be made of a magnetic material and the pickup must be
positioned correctly with respect to therotating part (see Figure 16).
The following procedure may befollowed to set the correct distance
between the pickup and its counterpart(e.g. a perforated disk or end of shaft
with holes etc):
Warning
It is absolutely necessary that there
is no movement of the rotating partwhen this adjustment is made.
Otherwise the pickup and/or counterpart may be damaged.
1. Mount the pickup in the threaded holeand rotate it gently clockwise until itjust touches its counterpart.
2. Now rotate the pickup 5/6 of a turncounterclockwise. Use e.g. thecounter-nut as a sort of dial.
3. Fasten the counter-nut without rotating the pickup.

20

Note! Max. torque moment of counter nut: 5 Nm

TypeTemperature range

Dimensions
A

B

Thread type

Weightkg

72K01-30°C to +145°C

182

147

1/4” BSP

0.08

72K02

-30°C to +145°C

182

147

M12x1.25

0.08

72K05

-30°C to +145°C

150

119

1/4” BSP

0.07

72K06

-30°C to +145°C

150

119

M12x1.25

0.07

Figure 16. Dimensions of the 72K-series DISATAC pickups. All dimensions are in mm.

MOUNTING EXAMPLES

Coaxial positioning

A rod-end with two 4 mm
dia. holes 2 mm deep on a
6.6 mm dia. circle.
E.g. placed in a screwhead.
72K.. pickup mounted
coaxially with the rotating axis
Figure 17. Coaxial positioning of 72K-series DISATAC pickup.

Eccentric positioning

An 8 mm iron plate withsix 5 mm dia. holes on a
66 mm dia. circle.

72K.. pickup mounted
33 mm off axis with respect
to the rotation axis
Figure 18. Eccentric positioning of 72K-series DISATAC pickup.

21

22

Electronic units in the 72B-seriesElectronic units in the 72B-series

General description
DISATAC electronic tachometers arerugged and reliable systems for contactless measurement of the rotational
speed of any kind of rotating machinery.
They offer significant advantages in themeasurement of high rotational speeds.
The DISATAC system consists of
one or more magnets, a pickup placed a
specified distance from the magnet, andan electronic unit. Since it requires nomechanical connection to the rotatingmachine element, there is no mechanical wear. The magnet, which is mounted
on the rotating part, induces an alternating voltage in a stationary DISATAC
pickup. This voltage is converted in the
DISATAC electronic unit to a DC output
current proportional to the rotational
speed.
The standard DISATAC model ispowered by the energy generated by themagnetic pickup and thus requires noexternal power supply.

Serial number

Calibration code number

Calibrated for 12,000 RPM
full scale (300 µA output)

Type of pickup/magnet
2p : 2-pole pickup/magnet
4p : 4-pole pickup/magnet

Minimum speed of rotation
The working range of the DISATAC has
a lower limit. If the speed of rotation
decreases beyond a certain point, theinduced working voltage will be inadequate. This causes an error in the meterreading, as illustrated by Figure 19.
The minimum speed of rotation defined

above is listed for each pickup in thechapter on pickups and magnets. At low
speeds of rotation, the pointer may
vibrate because of the relatively longinterval between the charging pulses.

Maximum speed of rotation
Dantec should be consulted concerning
the use of specially DISATAC 72C-series
pickups above 100,000 RPM. Such
speeds may result in problems regarding
the mechanical strength of themagnet(s) and mechanical stress that
may be imposed by the magnet on therotating machinery.

Figure 19. Meter reading error at low rotational speed, caused by inadequate induced working voltage.

24

Coaxial connector
in pickup input
If requested, all 72B-series electronic
units can be delivered in a modified
version in which the pickup cable entry(gland) is replaced by a female coaxial
connector (SO-239).
This modification has part number
9072D2991.

Calibration code number
Every DISATAC electronic unit isindividually calibrated to the customer’s
specifications before shipment and ismarked with a calibration number,
9072B... (or 72B...), both on the outsideof the box and on the electronic chassis.
This calibration number both identifies the type of DISATAC unit and thecalibration data. It should always bequoted in connection with queries.

DISATAC 72B30
The DISATAC 72B30 electronic unit has facilities for connecting one DISATAC meter.

Specifications
PickupAny DISATAC type 72C-series pickup may be used.

RPM range

From 4,000 to 100,000 RPM, using 2-pole or 4-pole pickups.

OutputOne proprietary DC current loop output (0 to 300 µA) for a DISATAC
meter.

Accuracy

1% of full scale(minimum full scale depends on pickup type).

Calibration

Every DISATAC electronic unit is individually calibrated to the cus
tomer’s specifications before shipment and is marked with a calibration
number, 9072B... (or 72B...), both on the outside of the box and on theelectronic chassis. This calibration number identifies both the type of
the DISATAC unit and the calibration data. It should always be quoted
in connection with queries.

Non-linearity

Maximum 1% (20% to 100% of full scale).

Temperature range–20°C to 70°C.
Pickups: See specifications for the appropriate pickup.
Magnets: See specifications for the appropriate magnet.

Temperature drift

Less than ± 0.03%/°C. Calibration at 25°C.

Output time constant Approximately 0.5 sec. (analogue meter outputs).
Power

Self-powered by the energy generated by the pickup.

Immunity toelectromagnetic
interference

EN 50 082-2.
Lloyd’s Register of Shipping (Test Specification 1 (1996)).

Cabinet material

Water-resistant aluminium alloy and finished in green enamel.

Cable entry

2 cable glands, ½” diameter.

Degree of protection

Cabinet IP65.

Mechanicalvibrations

Maximum ± 1 mm (2 to 13.2 Hz).
Maximum ± 0.7 g (13.2 to 100 Hz).

Weight

1.0 kg.

Type approval

The DISATAC 72B30 electronic unit meets the specifications of Lloyd’s
Register of Shipping (Test Specification 1 (1996)).

Figure 21. Wiring diagram for DISATAC
72B30 electronic unit.

Figure 20. Mechanical outline of DISATAC 72B30 electronic unit.
All dimensions are in mm, unless otherwise stated.

25

DISATAC 72B50
The DISATAC 72B50 electronic unit has a built-in pointer instrument (meter) as well as facilities forconnecting one or two additional DISATAC meters.

Specifications
PickupAny DISATAC type 72C-series pickup may be used.

RPM range

From 4,000 to 100,000 RPM using 2-pole or 4-pole pickups.

Meter

A DS 120A meter is built in the cabinet.

OutputOne or two proprietary DC current loop outputs (0 to 300 µA) for DISATAC
analogue meters.

Accuracy

1% of full scale (min. full scale depends on pickup type)

Calibration

Every DISATAC electronic unit is individually calibrated to the customer’s
specifications before shipment and marked with a calibration number,
9072B.... (or 72B....), both on the outside of the box and on the electronicchassis. This calibration number identifies both the type of the DISATAC unit
and the calibration data. It should always be quoted in connection with queries.

Non-linearity

Maximum 1% (20% to 100% of full scale).

Temperature range–20°C to 70°C.
Pickups: See specifications for the appropriate pickup.
Magnets: See specifications for the appropriate magnet.

Temperature drift

Less than ± 0.03%/°C. Calibration at 25°C.

Output time constantApproximately 0.5 sec. (analogue meter outputs).

Power

Self-powered by the energy generated by the pickup.

Immunity toelectromagnetic
interference

EN 50 082-2.
Lloyd’s Register of Shipping (Test Specification 1 (1996)).

Cabinet material

2 mm sheet iron with green and grey enamel finish.Vibration dampers arebuilt in for additional mechanical protection.

Cable entry

3 cable glands, ½” diameter.

Degree of protection

IP65 (cabinet)

Mechanicalvibrations

Maximum ± 1 mm (2 to 13.2 Hz).
Maximum ± 0.7 g (13.2 to 100 Hz).

Weight3.9 kg.

Type approval

The DISATAC 72B50 electronic unit meets the specifications of Lloyd’s
Register of Shipping (Test Specification 1 (1996)).

Figure 23. Wiring diagram for DISATAC
72B50 electronic unit.

Connections
Remove the resistor(s) before connecting the DISATAC meter(s).
The resistor(s) must be installedagain when disconnecting the DISATAC
meter(s).

Figure 22. Mechanical outline of DISATAC 72B50 electronic unit. All dimensions are in mm,
unless otherwise stated.

26

DISATAC 72B60
The DISATAC 72B60 electronic unit is designed for panel mounting. It has provision for connecting one,
two or three DISATAC meters.

Specifications
PickupAny DISATAC type 72C-series pickup may be used.

RPM range

From 4,000 to 100,000 RPM using 2-pole or 4-pole pickups.

OutputOne, two or three proprietary DC current loop outputs (0 to 300 µA) for
DISATAC analogue meters.

Accuracy

1% of full scale (minimum full scale depends on pickup type).

Calibration

Every DISATAC electronic unit is individually calibrated to the customer’s
specifications before shipment and marked with a calibration number,
9072B.... (or 72B....), both on the outside of the box and on the electronicchassis. This calibration number identifies both the type of the DISATAC unit
and the calibration data. It should always be quoted in connection with
queries.

Non-linearity

Maximum 1% (20% to 100% of full scale).

Temperature range–20°C to 70°C.
Pickups: See specifications for the appropriate pickup.
Magnets: See specifications for the appropriate magnet.

Temperature drift

Less than ± 0.03%/°C. Calibration at 25°C.

Output time constantApproximately 0.5 sec. (analogue meter outputs).

Power

Self-powered by the energy generated by the pickup.

Immunity toelectromagnetic
interference

EN 50 082-2.
Lloyd’s Register of Shipping (Test Specification 1 (1996)).

Cabinet material

Cast salt-water-resistant aluminium alloy, finished in green enamel.

Cable entry

4 cable glands, ½” diameter.

Degree of protection

Cabinet IP65.

Mechanicalvibrations

Maximum ± 1 mm (2 to 13.2 Hz).
Maximum ± 0.7 g (13.2 to 100 Hz).

Weight

1.9 kg.

Type approval

The DISATAC 72B60 electronic unit meets the specifications of Lloyd’s
Register of Shipping (Test Specification 1 (1996)).

Figure 25. Mechanical outline of DISATAC
72B60 electronic unit. All dimensions are inmm, unless otherwise stated.

Connections
Remove the resistor(s) before connecting the DISATAC meter(s).
The resistor(s) must be installedagain when disconnecting the DISATAC
meter(s).

Figure 24. Wiring diagram for DISATAC 72B60 electronic unit.

27

DISATAC 72B61
The DISATAC 72B61 electronic unit is a recorder version for panel mounting, with provision for connecting
one recorder and one or two meters.

Specifications
PickupAny DISATAC type 72C-series pickup may be used.

RPM range

From 4,000 to 100,000 RPM using 2-pole or 4-pole pickups.

Meter output

One or two proprietary DC current loop outputs (0 to 300 µA) for DISATAC
analogue meters.

Recorder output

One recorder output. Adjustable between 30 and 90 mV DC, corresponding
to full-scale meter reading.

Output resistance(recorder output)

100 to 300 Ω.

Ripple(recorder output)

120,000% maximum.
Number of poles * RPM

Output time constantAnalogue meter outputs: Approximately 0.5 sec. Recorder output: 0.1 to 0.3
sec.

Accuracy

1% of full scale (minimum full scale depends on pickup type).

Calibration

Every DISATAC electronic unit is individually calibrated to the customer’s
specifications before shipment and is marked with a calibration number,
9072B.... (or 72B....), both on the outside of the box and on the electronicchassis. This calibration number identifies both the type of the DISATAC unit
and the calibration data. It should always be quoted in connection with queries.

Non-linearity

Maximum 1% (20% to 100% of full scale).

Temperature range–20°C to 70°C.

Temperature drift

Less than ± 0.03%/°C. Calibration at 25°C.

Power

Self-powered by the energy generated by the pickup.

Pickups: See specifications for the appropriate pickup.
Magnets: See specifications for the appropriate magnet.

Immunity to electroEN 50 082-2.
magnetic interference Lloyd’s Register of Shipping (Test Specification 1 (1996)).
Cabinet material

Cast salt-water-resistant aluminium alloy, finished in green enamel.

Cable entry

4 cable glands, ½” diameter.

Degree of protection

Cabinet IP65.

Mech. vibrations

Maximum ±1 mm (2 to 13.2 Hz). Maximum ± 0.7 g (13.2 to 100 Hz).

Weight

1.9 kg.

Type approval

The DISATAC 72B61 electronic unit meets the specifications of Lloyd’s
Register of Shipping (Test Specification 1 (1996)).

Figure 27. Mechanical outline of DISATAC
72B61 electronic unit. All dimensions are inmm, unless otherwise stated

Connections
Remove the resistor(s) before connecting the DISATAC meter(s).
The resistor(s) must be installedagain when disconnecting the DISATAC
meter(s).

Figure 26. Wiring diagram for DISATAC 72B61 electronic unit.

28

DISATAC 72B62
The DISATAC 72B62 electronic unit is a datalogger version for panel mounting, with provision forconnecting of one datalogger and one or two meters.

Specifications
PickupAny DISATAC type 72C-series pickup may be used.

RPM range

From 4,000 to 100,000 RPM using 2-pole or 4-pole pickups.

Meter output

One or two proprietary DC current loop outputs (0 to 300 µA) for DISATAC
analogue meters.

Datalogger output

One datalogger output. Adjustable between 30 and 90 mV DC, corresponding
to full-scale meter reading.

Output resistance(datalogger output)

100 to 300 Ω.

Ripple(datalogger output)

12,000
Number of poles * RPM % maximum.

Output time constantAnalogue meter outputs: Approximately 0.5 sec. Datalogger output: 1 to 3 sec.

Accuracy

1% of full scale (minimum full scale depends on pickup type).

Calibration

Every DISATAC electronic unit is individually calibrated to the customer’s
specifications before shipment and is marked with a calibration number,
9072B.... (or 72B....), both on the outside of the box and on the electronicchassis. This calibration number identifies both the type of the DISATAC unit
and the actual calibration data. It should always be quoted in connection with
queries.

Non-linearity

Maximum 1% (20% to 100% of full scale).

Temperature range–20°C to 70°C. Pickups: See specifications for the appropriate pickup.
Magnets: See specifications for the appropriate magnet.

Temperature drift

Less than ± 0.03%/°C. Calibration at 25°C.

Power

Self-powered by the energy generated by the pickup.

Immunity to electroEN 50 082-2.
magnetic interference Lloyd’s Register of Shipping (Test Specification 1 (1996)).
Cabinet material

Cast salt-water-resistant aluminium alloy, finished in green enamel.

Cable entry

4 cable glands, ½” diameter.

Degree of protection

Cabinet IP65.

Mech. vibrations

Maximum ± 1 mm (2 to 13.2 Hz). Maximum ± 0.7 g (13.2 to 100 Hz).

Weight

1.9 kg.

Type approval

The DISATAC 72B62 electronic unit meets the specifications of Lloyd’s
Register of Shipping (Test Specification 1 (1996)).

Figure 29. Mechanical outline of DISATAC
72B62 electronic unit. All dimensions are inmm, unless otherwise stated.

Connections
Remove the resistor(s) before connecting the DISATAC meter(s).
The resistor(s) must be installedagain when disconnecting the DISATAC
meter(s).

Figure 28. Wiring diagram for DISATAC 72B62 electronic unit.

29

DISATAC 72B63
The DISATAC 72B63 electronic unit is a meter version for panel mounting. It has provision for connecting
one or two DISATAC meters and an additional recorder output with an isolated passive 2-wire transmitter(4-20 mA DC current loop).

Specifications
PickupAny DISATAC type 72C-series pickup may be used.

RPM range

From 4,000 to 100,000 RPM using 2-pole or 4-pole pickups.

OutputOne or two proprietary DC current loop outputs (0 to 300 µA) for DISATAC
analogue meters. One isolated 4-20 mA DC recorder output (passive 2-wiretransmitter).

Accuracy

1% of full scale (minimum full scale depends on pickup type).

Calibration

Every DISATAC electronic unit is individually calibrated to the customer’s specifications before shipment and is marked with a calibration number, 9072B....
(or 72B....), both on the outside of the box and on the electronic chassis.
This calibration number identifies both the type of the DISATAC unit and theactual calibration data. It should always be quoted in connection with queries.

Non-linearity

Maximum 1% (20% to 100% of full scale).

Temperature range–20°C to 70°C. Pickups: See specifications for the appropriate pickup.
Magnets: See specifications for the appropriate magnet.

Temperature drift

Less than ± 0.03%/°C. Calibration at 25°C.

Output time constantApproximately 0.5 sec. (analogue meter outputs).
Approximately 1.2 sec. (recorder output).

Power

Self-powered by the energy generated by the pickup.

Ripple(recorder output)

12,000
Number of poles * RPM % maximum.

Isolation(recorder output)

Maximum 500 V AC (1 s), 50 V AC continuous.

Current loop supply
voltage (4 to 20 mA
recorder output)

7.5 to 28 V DC.

Immunity to electroEN 50 082-2.
magnetic interference Lloyd’s Register of Shipping (Test Specification 1 (1996)).
Cabinet material

Cast salt-water-resistant aluminium alloy, finished in green enamel.

Cable entry

4 cable glands, ½” diameter.

Degree of protection

Cabinet IP65.

Mech. vibrations

Maximum ± 1 mm (2 to 13.2 Hz). Maximum ± 0.7 g (13.2 to 100 Hz).

Weight

1.9 kg.

Type approval

The DISATAC 72B63 electronic unit meets the specifications of Lloyd’s
Register of Shipping (Test Specification 1 (1996)).

Figure 31. Mechanical outline of DISATAC
72B63 electronic unit. All dimensions are inmm, unless otherwise stated.

Connections
Remove resistors between terminals 3
and 4 and/or 5 and 6 before connecting
meters.
Install the resistor(s) again if themeter(s) are disconnected.

Figure 30. Wiring diagram for DISATAC 72B63 electronic unit.

30

Electronic units in the 72H-series

31

Electronic units in the 72H-series

General description
The DISATAC 72H-series electronictachometers are rugged and reliable
systems for contactless measurement of
the rotational speed of almost any kindof rotating machinery. Since there is no
mechanical connection to the rotatingmachine element, there is no mechanical wear.
The electronic units are designed tooperate with signals from a DISATAC
72K-series pickup positioned next to any
gear wheel, perforated disk, shaft withbosses or protrusions or equivalent,made from ferrous material. The rotating
part of the machine acts as an armature.
As the armature rotates, the changes in
the magnetic circuit induce electricalpulses in the pickup. The frequency ofthe pulses - e.g. produced by the teeth
on a gear wheel - is proportional to therotational speed. The induced pulses
are converted in the electronic units to a
current proportional to the rotational
speed (300 µA DC corresponds to fullscale deflection on an attached
DISATAC meter).
The DISATAC 72H-series electronic
units are also compatible with DISATAC
type 72C-series pickups with corresponding magnets attached to the rotating parts.
The electronic units are calibrated in
the factory.

Specifications
Input

Any 72K-series or 72C-series DISATAC pickup may be used.

OutputThe unit has a proprietary DISATAC DC current output (300 µA full scale).
If more DISATAC meters are connected in series, the total impedance must
not exceed 9 kΩ.

Ripple4,000
Number of pulses/rev * RPM % maximum.

Time constant
Recorder output(72H01)

1.5 sec.
0 to 100 mV DC.
For recorders and dataloggers with a minimum internal impedance of 10 kΩ.

Recorder output(72H03)Passive isolated 2-wire transmitter (4-20 mA DC). Isolation: max. 500 VAC(1 sec.). 50 VAC cont. Current loop supply voltage:7.5 to 28 VDC.

Armature material

Iron or iron alloy (72K.. pickups).

RPM range

Rotational speeds corresponding to 3,600 - 600,000 pulses/min.

Accuracy±1% of full scale when needle deflects.

Calibration

Units are individually calibrated to customers’ specifications.

Temperature range

Electronic unit: 0 to + 60°C.
Pickups: See specifications for the appropriate pickup.

Temperature drift

Less than ± 0.02%/°C (calibration at 25°C).

Immunity toelectromagnetic
interference

EN 50 082-1.

Power supply

Any voltage between 90 and 270 V AC - 50/60Hz.

Power consumption

1 VA (at 270 V AC).

Cabinet material

Cast salt-water-resistant aluminium alloy, finished in green enamel.

Cable entry

5 cable glands, ½” diameter.

Degree of protection

Cabinet IP65.

Mech. vibrations

Maximum ± 0.7 g (13.2 to 100 Hz). Maximum ±1 mm (2 to 13.2 Hz).

Weight2.25 kg.

NOTE
An error signal can be generated if
extraneous movement (e.g. vibration) of
the armature tends to vary the gap
between the pickup and the armature.
The triggering level of the electronic unit
has been selected so that, with pickup
cable lengths of less than 25 metres, noadditional output error will be introduced
unless the speed of any variation inarmature gap exceeds 200 mm/sec.

Calibration number
Before shipment, every DISATAC 72Hseries electronic unit is calibrated for theapplication concerned, to take accountof the number of pulses per revolution
and full-scale RPM. The unit is marked
with a calibration number, 9072H.... (or72H....), both on the outside of the box
and on the electronic chassis. This calibration number identifies both the typeof unit and the calibration data. It should
always be quoted in connection with
queries.

Minimum speed of rotation
Whenever a reading of rotation speed isindicated by a DISATAC 72H-series
electronic unit, it will be correct, within
the specified limits of accuracy. Thus,
there is no minimum-speed limitation.
For values of lowest speeds indicatedrefer to the section on pickups.

32

Figure 32. Mechanical outline of DISATAC 72Hseries electronic units. All dimensions are inmm, unless otherwise stated.

ELECTRONIC UNITS - Specifications continued

Wiring diagram 72H01

Figure 33a. Wiring diagram for DISATAC 72H01 electronic unit.

Wiring diagram 72H03

Figure 33b. Wiring diagram for DISATAC 72H03 electronic unit.

Installation
Mounting and connection of the 72Hseries DISATAC Electronic Units mustcomply with local legislation for mounting
and connection of electrical equipment and the 72H-series DISATAC Electronic
Unit should only be installed by technicians familiar with installation of similarelectrical equipment. The 72H-series

DISATAC Electronic Unit must be connected to mains power through an external circuit breaker and a protective fuse(max. 10 A). The circuit breaker must be
clearly marked with a label indicating thatit disconnects the mains power to the
72H-series DISATAC Electronic Unit.
The 72H-series Electronic Unit must beconnected to protective earth. Only theearth screw on the chassis must be used
for protective earth connection.
NOTE
Terminal 3 on the screw-terminal block isa functional earth connection and must
only be used for connecting cable shields
from e.g. 9072K150* DISATAC pickup
cables.

33

The cable glands on the 72H-series
Electronic Units allow for outer cablediameters of 7-13 mm.
The mains input cable must be
mechanically secured close to the 72Hseries Electronic Unit.
Disposal of electronic equipment
Electronic equipment should not be disposed of together with other waste. The
user must dispose waste equipment
according to local rules and regulations.

34

DISATAC Electronic Tachometer Systems approvedby Lloyd’s Register of Shipping (IACS E10).

DISATAC meterDISATAC meter - DQ 96

Description
Meters for the DISATAC electronictachometer must fulfil certain requirements in order to operate properly withthe electronic circuit. The meter listed the DQ 96 - is specially manufactured
for use with the DISATAC system.
All DISATAC meters meet the specifications of Lloyd’s Register of Shipping(Test Specification no. 1 (1996)).
DISATAC meters must be orderedseparately.
When ordering, please specify:•••

Type number of the meter
Full-scale RPM
Special requests (if any) for metermarkings - e.g. a red-coloured section.

General specifications
Full scale deflection

300 µA ± 1%.

Internal resistance300 Ω ± 10%.

Time constant

0.4-0.5 sec. to 63% of current applied.

Mounting specifications
The housing for DQ 96 may be of either
metal with bakelite front frame or blackglass-filled makrolon.

Mechanical dimensions and panel cut-out DQ 96

Mounting
The dimensions on the panel cut-out forcorrect mounting are specified for eachmeter in the following sections. Somepanel-mounting meters are supplied withspecial shunts to compensate for sensitivity differences caused by mounting
either in magnetic or in non-magnetic
material. The shunts should be removed
when meters are mounted in panels ofmagnetic material. Instructions for doing
this are printed on the shunts.

36

Figure 34. Mounting specifications of DISATAC meter DQ 96. All dimensions are in mm, unlessotherwise stated.

Cables and connectors

Cables and connectors

Description
Cables and connectors for installing andconnecting the DISATAC system’s components must be ordered separately.

Cable types
The cable required depends on the electronic unit and the type of pickup in yourapplication. Figure 39 shows the correct
cables for the various applications.

DISATAC 72B50

DISATAC 72B30 & 72B60 - 63

DISATAC 72H01 & 72H03

Figures 39. DISATAC cable types.

38

The technical specifications for the individual cables and connectors are given
at the end of this chapter.

Cable connections
The blue conductor in standard DISATAC
neoprene cables for 72C-series pickups
is connected to ground (earth).

Cable length limitations
For 72K-series pickups, the length of thecable between pickup and the 72H
series electronic unit should not exceed
25 m.
For 72B-series of electronics units
please refer to figure 40 on page 43.

Long pickup cables

When a long cable is used between the DISATAC pickup and a 72B-series DISATAC electronic unit, it isnecessary to take into consideration the limitation ofmax. speed of rotation imposed by the dielectric capacitance of the cable.
This chart shows the max. cable length between
pickup and DISATAC electronic unit as a function ofmax. speed of rotation for 2-pole and 4-pole DISATAC
pickups.

Example:For a 4-pole DISATAC pickup and a maximum of 25,000
RPM, the maximum pickup cable length is 50 metres forstandard DISATAC neoprene cable and 125 metres for
low-capacitance RG11 A/U coaxial cable.

Figure 40. Nomogram for calculating maximum length of cable.

39

SPECIFICATIONS

Cables between electronic units and meters
9140K0012 (standard cable, no connectors)
Cable length

Specified by customer

Material

Neoprene

Maximum ambient temperature+120°C

Outer diameter

9 mmColourBlack

Conductors

2 (black and blue); 1 mm2 wire

Cable connections between pickups and electronic units
9006A1661

9006A1660

9072K1431(for 72K-series
pickups only)

9072K1430(for 72K-series
pickups only)

Cable length2mSpecified by customer

2m

Specified by customer

Number of connectors

1

1

1

1

Coaxial type SO-239

Coaxial type SO-239

UHF twin type SO-264

UHF twin type SO-264

Connector type

Note
The blue conductor in standard DISATAC
neoprene cables for 72C-series pickups isconnected to ground (earth).

Connectors

Type
Material

9072K2211(for 72C-series pickups only)

9072K2221(for 72K-series pickups only)

SO-239 (coaxial type)SO-264 (UHF twin type)

Brass (silver-plated)/PTFE

Brass (silver-plated)/PTFE

Junction box 9072K2451
Terminals
Cabinet material

Mechanical outline

Max. 2.5 mm2 conductor
Aluminium alloy, finished in grey enamelProtection

IP 65

Weight0.42 kg

Cable glands

PG 13.5

This junction box is specially intended for joining the special
DISATAC neoprene pickup cable with other types of cable if the
DISATAC electronic unit is mounted away from the pickup.

Note:
For maximum lengths of pickup cables in DISATAC systems
please refer to Figure 40 on page 43.

40

Figure 41. All dimensions are in mm.

Electronic Limit Switch 9072D4701

This electronic limit switch is intended
for use in warning and alarm circuits
monitoring the output from DISATAC
electronic tachometer systems.
This electronic limit switch is a partial replacement for the 72D01, 72D02,
72D03 and 72D04 DISATAC Relays(only DISATAC Relay ’MODE 1’ and’MODE 2’ operations are supported/emulated).
The input of the electronic limit
switch is connected directly to the cur-rent output of the DISATAC electronic
unit (300 µA full scale).
The electronic limit switch consistsof two electro-mechanical relays controlled by an electronic circuit causing
the relay contacts to open or close atpreset SETPOINT values. ’normallyopen’ or ’normally closed’ operation of
the two relays can be selected using a
jumper contact located inside the electronic unit.

Note:
The two circuits are configured for’normally open’ operation if not otherwise specified with the order.
The two SETPOINTS are programmed (0 to 99.9%) using 3 push buttons
on the electronic module.

Wiring diagram

Figure 42.

41

ELECTRONIC LIMIT SWITCH - Specifications continued

Mechanical dimensions

Figure 43. All dimensions are in mm.

Specifications

42

Power supply(specify with order)

A)
B)
C)

24 VDC +/-20%
115 VAC +/-10%
230 VAC +/-10%

1.5 W
4W
4W

Temperature range-20 to +60°C

Input sensivity

100% equal to 300 µA DC

Setpoint accuracy

Error less than 1% of full scale (100%) within full temperature range

Time Constant

1 sec.

Relay contacts(’normally open’ operation if nototherwise specified)Max. voltage
Max. current
Max. AC power
Max. load at 24 VDC

Insulation

3.75 kV AC

Cabinet material

Aluminium alloy, finished in grey enamel

Weight

1.7 kgCable glands

PG 13.5

Protection

IP 65

250 VAC RMS
2A AC 50/60 Hz
500 VA / 100 W
1A

DISATAC SELECTOR SWITCH - 2, 4 or 8 input channels

Mechanical dimensions(2 input channel version as example below)

Figure 44. All dimensions are in mm.

A mechanically operated selector switch to
be used between a number of DISATAC
pickups (same type) and one DISATAC
electronic unit if continuous monitoring ofeach pickup is not required.
The selector switch is manufactured
on special request in 2, 4 or 8 input channel versions.

Cabinet material

Cast aluminium alloy with grey enamel finishing.

Protection

IP 54

Cable entries

PG 13.5 cable glands

Mechanical dimensions

Depends on number of input channels
Example:2 input channel switch:
100 x 100 x 80 mm (See mechanical outline above).

2 input channel version
Partnumber 9072K2461
4 input channel version
Partnumber 9072K2471
8 input channel version
Partnumber 9072K2481

43

Service and Troubleshooting
DISATAC systems will normally operate for years without requiring maintenance. However, if a fault does
occur, this chart will help to locate the cause. Most faults are due to installation errors or the use of wrong
combinations of DISATAC electronic units and pickups/magnets.

Meter reading

Product

No meter reading

All types ofpickups

Possible cause of fault
The pickup and/or magnet may bedamaged or misaligned.

How to check/repair
Check by visual inspection that the pickup and magnet are mounted correctlyas specified in this catalogue and check that neither pickup nor magnet has
been mechanically damaged.
If there is damage, the affected parts must be replaced with exactly the sametypes.

Open- or short-circuit fault in
pickup cable.

Check cable, connections and isolation to ground.
72C.. pickups have the outer conductor connected to ground.
In 72K.. pickups, the pickup coil is not connected to ground.
Repair or replace cable if necessary.

72C-series
2-polepickups

Open-circuit fault in the pickupcoil.

72C-series
4-polepickups

Open-circuit fault in the pickup
coil.

72K-series
pickups

Open-circuit fault in the pickup
coil.

Check that the internal resistance in cable and pickup is approx. 2600 - 3000 Ω(at room temperature).
If the resistance deviates, replace the pickup with a new one of the same type.
Check that the internal resistance in cable and pickup is approx. 800 -1000 Ω(at room temperature).
If the resistance deviates, replace the pickup with a new one of the same type.
Check that the internal resistance in cable and pickup is approx. 1100 -1300 Ωat room temperature).
If the resistance deviates, replace the pickup with a new one of the same type.

All types of pickups

The meter cable is shortcircuited or not connected
correctlyor
there is an internal open-circuit
fault in the meter

Check the meter circuit. A 4.5V battery connected to the meter cable in series
with a 15 kΩ resistor should give approx. full scale deflection on the meter.
If not, check the cable or replace the meter if necessary. When ordering a newmeter from your DISATAC dealer, specify meter type and full-scale reading(max. RPM.).
Remember to specify any special markings needed on the scale.
Check cable connections against the wiring diagram in the cabinet and correct
wiring if necessary.

Half the correct
meter reading

72C-series
2-polepickupsThere is a fault in the DISATAC
electronic unit.

Check that all screws in the terminal block are fastened securely.

The electronic unit may havebeen calibrated for a 4-pole pickup.

Check with the calibration label on the DISATAC electronic unit that it isactually calibrated for a 2-pole pickup.

As each DISATAC electronic unit is individually calibrated and checked, adefective electronic unit should always be returned to Dantec Dynamics forrepair/recalibration or replaced by a new unit with the same calibration
specification. When ordering a replacement unit, remember to give the
DISATAC calibration number on the calibration label.

Check that pickup and magnet are 2-pole types.
If necessary, replace the DISATAC electronic unit with a unit that has beencalibrated for a 2-pole pickup. Alternatively, replace pickup and magnet with
4-pole types (if possible).

Twice the correct
meter reading44

2 or more meters

2 DISATAC meters may by mistake
have been connected in parallel.

Check the meter connections against the wiring diagram in the cabinet andcorrect if necessary.

All 72B-series
DISATACsystems

The corresponding 300 Ω
resistor on the terminal block was
not removed when themeter cable was connected.

Check terminal block connections.

72C- series
4-polepickups

The DISATAC electronic unit may
have been calibrated for a2-pole pickup.

Check with the calibration label on the DISATAC electronic unit that it isactually calibrated for a 4-pole pickup.
Check that pickup and magnet are 4-pole types.
If necessary, replace the DISATAC electronic unit with a unit that has beencalibrated for a 4-pole pickup. Alternatively, replace pickup and magnet with
2-pole types (if possible).

SERVICE AND TROUBLESHOUTING CONTINUED

Meter reading

Product

Possible cause of fault

Meter reading
5 - 10% too low

DISATAC meters,
type
DQ 96R,
DQ 144R
DS 95A/K,
DS 120A or
DS 185 mounted
in a steel panel

The meter is placed in a ferrous
panel with the special compensation shunt installed on meter
terminals.

DISATAC meters,
type DQ 96R,
DQ 144R, DS 95A/K,
DS 120A or
DS 185 mounted ina non-ferrous panel.

The meter is placed in a nonferrous panel without the special
compensation shunt installed onmeter terminals.

If the compensation shunt is not installed, the correct type must be installedon meter terminals. A spare shunt can be ordered from your DISATAC dealer.
Remember to specify meter type.

72C-series
2-polepickups

Pickup and magnet are notpositioned correctly in relation toeach other.

Check that pickup and magnet are positioned in accordance with thespecifications in the pickup section of this catalogue.

72C-series
4-polepickups

Pickup and magnet are notpositioned correctly in relation toeach other.

Check that pickup and magnet are positioned in accordance with the specifications in the pickup section of this catalogue. In particular, check that the
spacing between pickup and magnet is 1.4 ±0.6 mm.

All typesof pickups

There is a fault in the metercircuit.

Check the meter circuit. A 4.5V battery connected to the meter cable in series
with a 15 kΩ resistor should give approx. full-scale deflection on the meter.

Meter reading
5 - 10% too highLow meter
reading

How to check/repair
If installed, the compensation shunt must be removed.
Check that the panel thickness is between 0.5 and 3 mm. If the panel is thicker than 3 mm, the cut-out in the panel must be bigger (see specifications in
the meter section of this catalogue).
If the size of the cut-out is incorrect, remove the meter and correct the cut-out
in accordance with meter specifications.
NB: DISATAC meters DQ 96, DQ 96S, DQ144 and DQ 144S do not require
the special compensation shunt when mounted in a non-ferrous panel.

NB: DISATAC meters DQ 96, DQ 96S, DQ144 and DQ 144S do not require
the special compensation shunt when mounted in a non-ferrous panel.

If not, check the cable or replace the meter if necessary. When ordering a newmeter from your DISATAC dealer remember to specify meter type and fullscale reading (max. RPM).
Remember to specify any special markings on the scale.
There is a fault in the DISATAC
electronic unit.

Check cable connections against the wiring diagram in the cabinet and correct
wiring if necessary.
Check that all screws in the terminal block are fastened securely.
As each DISATAC electronic unit is individually calibrated and checked, adefective electronic unit should always be returned to Dantec Dynamics forrepair/recalibration or replaced by a new unit with the same calibration
specifications. When ordering a replacement unit, remember to give the
DISATAC calibration number on the calibration label.

Low rotational
speeds notindicated

72K-series
pickups

The spacing between pickup
and armature is incorrect.

Check that the spacing is 1 mm.

Unstable reading
at low rotational
speeds

72C-series
4-pole pickups

Too large a spacing between
pickup and magnet.

Check that the spacing between pickup and magnet is 1.4 ± 0.6 mm.
Adjust the distance if necessary.

Erratic and unstable reading

All typesof pickups

May be caused by unstableconnections.

Check for unstable connections in DISATAC electronic unit, pickup connector,
junction boxes and meter terminals.

Meter reading iscorrect but
recorder/datalogger
output is too low

72B61, 72B62 and
72H01

External recorder/datalogger
has too low an input impedance- or setting of ’Adjustment’potentiometer in DISATAC
electronic unit is not correct

Check technical specifications for recorder/ datalogger. Input impedanceshould be 10 kΩ or higher.

Meter reading iscorrect but
recorder output is
too low

72B63

Problem with 4-20 mA current
loop supply voltage - or too highimpedance in current loop.

Check voltage and polarity between terminals 7-8 in the DISATAC electronic
unit with a high impedance voltmeter. The measured voltage should be
between 7.5 and 28V DC.

Adjust to correct distance if necessary.

Adjust potentiometer in DISATAC electronic unit if necessary (72B6. only).
NB: In 72H01, the ’adjustment’ potentiometer is preset at the factory andmust not be re-adjusted.

Disconnect the cable from terminals 7-8 in the DISATAC electronic unit
and connect a 330 Ω resistor between the 2 wires of the cable. The measured
voltage across this resistor must be 7.0V DC as a minimum.

45

Certificate

46

Certificate

47

Certificate

48Certificate

49

Certificate

50

Certificate

51

52

Ordering procedure and list of current DISATAC representatives

Ordering procedure:
When ordering a new DISATAC installation or DISATAC spare parts, please
always provide the representative with thedetails stated in the order form. (Please
copy the order form provided on page 54).

This will ensure rapid and correct handlingof the order.
If there is no representative in yourcountry, please e-mail the order to Dantec
Dynamics A/S, Denmark.

DISATAC representatives:
CHINA(mainland - excl. Hong Kong)(for Hong Kong, please contact
Dantec Dynamics A/S, Denmark)Bond Instrumentation
Shanghai Representative officeTel: + 86 21 5888 6398
Fax: + 86 21 5888 6025
E-mail: bondwu@china.com(Mr. Wu Qi)
DENMARK
Dantec Dynamics A/S
Tel: + 45 44 57 81 95
Fax: + 45 44 57 80 01
E-mail:sales.industrial@dantecdynamics.com

FRANCE, NOZAY
Dantec Dynamics S.A.S., Nozay
Tel: + 33 1 64 49 6830
Fax: + 33 1 64 49 6839
E-mail: apz@dantecdynamics.com

GERMANY
Karl-Wilhelm Henn KG
Meß- und Regeltechnik
Tel: + 49 40 254 056-11
Fax: + 49 40 254 056-55
E-mail: m.heimsoth@kw-henn.de
Website: www.kw-henn.de
GREECE
Mantanovitch-Katsaros S.A.
Tel: + 30 210 461 1010
Fax: + 30 210 461 7519
E-mail: mantan@otenet.gr
HOLLAND
Peekel Instruments B.V.
Tel: + 31 104 152 722
Fax: + 31 104 376 826
E-mail: sales@peekel.nl
Website: www.peekel.nl
ITALY
La Meccanica Turbo Diesel S.r.l.
Tel: + 39 10 246 1111
Fax: + 39 10 246 1144
E-mail: info@mtd.it

SWEDEN
VIDIX Visible Dynamics AB
Tel: +46 (0) 733 50 33 66
Fax: +46 (0) 8 510 508 10
E-mail (Sales): info@vidix.se
Website: www.vidix.se
UNITED KINGDOM
Dantec Dynamics Ltd
Tel: + 44 1 275 375 333
Fax: + 44 1 275 375 336
E-mail: scientific@dantecdynamics.com
UNITED STATES OF AMERICA
Dantec Dynamics, Inc.
Tel: + 1 631 654 1290
Fax: + 1 631 654 1293
E-mail: dantec@dantecdynamics.com
FOR ALL OTHER COUNTRIES:Dantec Dynamics A/S
Tonsbakken 16 - 18
DK-2740 Skovlunde
Denmark
Tel: + 45 44 57 81 95
Fax: + 45 44 57 80 01
E-mail:sales.industrial@dantecdynamics.com

53

DISATAC order form

(Please photocopy this form)

To (DISATAC representative):

Fax number:(A) Details about the turbocharger:
Manufacture:

Type:(B) Ordering information:

Year of manufacture:

New installation

Maximum RPM:

Pulses per revolution:(72H/72K-systems only)

Spare parts

Configuration of the DISATAC equipment depends on the make of the turbocharger specified in box A. For correct specification ofsystem components, please refer to the DISATAC product selection guide (page 7). (Please complete all ordering details).
Item:(1) Pickup(2) Magnet

QuantityType number and other specifications:
Type: __________________________________
Type: __________________________________
NB: Magnet only needed with 72C-series pickups(3) Pickup cable(4) Electronic unit

Standard length (2 m) or ____________ m of cable
Example:Type: __________________________________
IMPORTANT:
When ordering a replacement unit, please indicate thecalibration code number affixed to the present electronic unit.

Calibrationcode
numberCalibration code number: ___________________(5) Meter cableStandard length (10 m) or ____________ m of cable
Code number: ___________________________(for the correct code number, please refer to the configuration guide on page 6)
NB: Cables are made of neoprene(6) Meter for DISATAC:

Type: __________________________________
Full-scale RPM reading: ___________________
Special marking on the meter: ________________________________________________________For PR 5515 Digital meter please specify supply voltage: ___________________________________

Special accessories:(C) Company details
Invoice address

Delivery addressCompany:

Company:

Attn.:

Attn.:

Street & No.:

Street & No.:

City/state:

City/state:

Post/ZIP code:

Post/ZIP code:

Country:Country:

Order number:

Ref:
Phone number:
E-mail:Signature:

54

Date:

(same as invoice address)

About Dantec Dynamics

Dantec Dynamics is the leading provider of systems for measurements of rotation, flow, velocity and particle
size. Since 1947 we have provided solutions for customers to optimize their component testing and products.
Our large number of customers benefit from our quality solutions within:

Fluid Mechanics

Thermal Comfort

Strain, Stress & Vibration

Particle Characterization

Microfluidics

Non-destructive Testing

Combustion Diagnostics

Process Control

Disatac Tachometers

Worldwide representation
From our six offices and more than 30 representatives worldwide weapproach our customers individually. We examine the specific needs
and find the best solution for you. For us you are a long-term partnerin improving efficiency, safety and quality of life.
A list of representatives is available at our website.

DENMARK (headquarters)
Dantec Dynamics A/S
sales.industrial@dantecdynamics.com

Publication No.: 237_v4 - 9040U1013

www.disatac.com

The specifications in this document are subject tochange without notice.
Dantec Dynamics is trademark of Dantec Dynamics A/S.

Dantec Dynamics, a Nova Instruments company