SNDJ-CNT Series
Tachometers
DESCRIPTION
Honeywell’s CNT Series is the next generation of flexible and
powerful tachometer products. Configured as either DIN rain or
panel-mounted units, CNT Series products are suitable for the
measurement, display, and control of speed in various
applications – from diesel engines to windmills and escalators.
They sense, monitor, discriminate, protect, diagnose, and
boost.
FEATURES
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Converts absolute speed into an analog signal
Including 2 limits (A/B) with programmable hysteresis
One changeover relay assigned via binary input to limit (A
or B)
G03 and G04 models with digital display
Isolated signal input with automatic trigger level adjustment
Built in isolated sensor supply with sensor monitoring
Open collector output of sensor frequency
Accuracy class 0.05 % for limits and 0.5 % for analog
signals
Configuration and status via Windows software
Wide tolerance 10 Vdc to 36 Vdc power supply
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POTENTIAL APPLICATIONS
Diesel engine start control and overspeed protection
Micro turbine measurement and protection
Turbocharger speed measurement
Machine protection in safety critical applications
Universal speed measurement and indication
The G01/G02 and G03/G04 are supplied with full
documentation and the CNT Windows software. This allows
quick and easy configuration of all operating parameters, unit
interrogation of identity and parameters, PC display of current
measurement and relay status, and archiving and printing of
the configuration.
SNDJ-CNT Series
SPECIFICATIONS
Parameter
Measuring range
Accuracy
Analog output
Characteristic
Lowest: 0 Hz to 1,000 Hz
Highest: 0 Hz to 35 kHz
0.5% referred to the analog output end of range value.
G01/G03: current output 0 mA to 20 mA, resp. 4 mA to 20 mA
G02/G04: voltage output 0 V to 10 resp. 2 V to 10 V
Load G01: max 500 Ohm corresponding to a max. of 10 V
Load G02: min. load 7 kOhm corresponding to a max. of 1.4 mA
12 V
12 bit corresponding to 1:4096.
0.1 %
±100 ppm/degree K typ., ±300 ppm/degree K max.
See measuring range above
for each limit an upper and a lower set point may be set independently
max. 250 Vac, 1250 VA (dc: see operating instructions)
Serial EIA RS 232 interface with +5V-CMOS level 3-pole. 3,5 mm stereo headphone connector
on the front side, common reference potential with negative pole of sensor supply
The min. measuring time (fix time) is programmable:
2/5/10/20/50/100/200/500 ms, 1/2/5 s
For input frequencies with a period SHORTER than the fix time:
Analog output
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Max.: 2 tix time + max. period of the input frequency + 7.5 ms
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Typ.: fix time + 1 period of the input frequency + 7.5 ms
Relay
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Max.: 2 fix time + max. period of the input frequency + 10.5 ms
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Typ.: fix time + 1 period of the input frequency + 10.5 ms
For input frequencies with a period LONGER than the fix time:
Analog output
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Max.: period of the input frequency + 7.5 ms
Relay
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Max.: period of the input frequency + 10.5 ms
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Input resistance: 30 kOhm
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Frequency range: (-3 dB): 0.01 Hz/35 kHz
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Trigger level: adaptive trigger level from 20 mV to 5 V or 500 mV to 5 V (factory configuration)
peak depending on the amplitude of the input signal
Built-in sensor power supply: +14 V, max 35 mA, short-circuit proof built-in pull up
(+14 V) and pull-down (0 V) resistor 820 Ohm for connection of two-wire transmitters or daisy
chaining of CNTs
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Powered 2 and 3 wire sensors: min. and max. current consumption values are selectable in
the range
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0.5 mA to 25 mA. Sensors with consumption below Imin. or above Imax. will be signaled as
defective
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Electromagnetic/VR sensors: Open circuit state of sensors. This supervision runs
permanently
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Both monitoring functions can be switched off via the configuration software
Galvanically separated output of sensor frequency.
For external selection between two sets (A/B) of programmable relay control and acknowledge
functions: (No external pull up needed) low active :U < +1.5 V high (open) :U > +3.5 V
Maximum open circuit voltage
Resolution
Maximum linearity error
Temperature drift
Set points/relay range
Hysteresis
Change over contact
Data I/O
Measuring/response time
Sensor input
Sensor supply
Sensor monitoring
Open collector output
Binary inputs
2
www.honeywell.com/sensing
Tachometers
SPECIFICATIONS (continued)
Parameter
Environmental
Characteristic
KUE according to DIN 40 040
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Operating temperature: -40 °C to 85 °C [-40 °F to 185 °F]
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Storage temperature: -40 °C to 90 °C [-40 °F to 194 °F]
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Relative humidity up to 75% average over one year period, up to 90% max.
for 30 days
10 Vdc to 36 Vdc, power consumption max. 3 W
Galvanic separation between power supply, current output and the sensor power
supply. Isolation 700 Vdc/500 Vac. Relay contact isolation: 1500 AC
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Radiation in accordance with international standards and EN 50081-2
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Immunity in accordance with international standards and EN 50082-2
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Conducted emissions: CISPR 16-1, 16-2 Radiated emissions: EN 55011
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Electrostatic discharge: IEC 61000-4-2 Electromagnetic fields: IEC 61000-4-3
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Conducted fast transients: IEC 61000-4-4
Conducted slow transients: IEC 61000-4-5
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Conducted high frequency: IEC 61000-4-6
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Pulse modul. elec. field: ENV 50140
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Power frequency magnetic field: IEC 1000-4-8
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EN 50155
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GL/Germanischer Lloyd
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Meets UL requirements - certification available upon request
Rail DIN 4622713 (EN 50022) or mounting plate to DIN 43660 (46121)
Protection class IP40, Terminal IP20
See operating instructions
G01/G02: 150 g [5.29 oz]
G03/G04: 210 g [7.41 oz]
Power supply
Insulation
Electromagnetic compatibility (EMC)
Standards
Rail
Housing
Terminals
Weight
DIMENSIONS (For reference only. mm/[in])
G01/G02
G03/G04
ORDER GUIDE
Catalog listing
G01
G02
G03
G04
Description
One channel tachometer with relay and 0 mA/4 mA to 20 mA output
One channel tachometer with relay and 0 V/2 V to 10 V output
One channel tachometer with relay and 0 mA/4 mA to 20 mA output, with display
One channel tachometer with relay and 0 V/2 V to 10 V output, with display
Honeywell Sensing and Control
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WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
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WARNING
MISUSE OF DOCUMENTATION
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective.
The
foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail:
info.sc@honeywell.com
Internet:
www.honeywell.com/sensing
Phone and Fax:
Asia Pacific
Europe
+65 6355-2828
+65 6445-3033 Fax
+44 (0) 1698 481481
+44 (0) 1698 481676 Fax
Latin America +1-305-805-8188
+1-305-883-8257 Fax
USA/Canada +1-800-537-6945
+1-815-235-6847
+1-815-235-6545 Fax
Automation and Control Solutions
Sensing and Control
Honeywell
1985 Douglas Drive
Golden Valley, Minnesota 55422
www.honeywell.com/sensing
009558-1-EN IL50 GLO Printed in USA
December 2006
Copyright © 2006 Honeywell International Inc. All rights reserved.
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