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TRACKER 280 SERIES
Digital Panel Indicator for Frequency, Timing,
Counting, Batching, Rate, Measurement and Display
A Universal Dual Input Channel Panel Indicator for Pulse,
TTL, AC, Contact Closure and Encoder Signals
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
TRACKER 280 SERIES INDICATORS
Dual Universal Input Serial Communications
Standard 1/8th DIN size IP65 Front Panel
Transducer Supplies Universal Mains Power Input
Bright Six Digit Display Easy Stock Holding
Isolated Analogue Output Up to 4 Alarm / Batch Control Outputs
User Scaling For Frequency and Pulses Totalisation to 12 Digits
User Definable Panel Buttons Functions User Definable Logic Inputs
OPTIONS
Green Display 24 VDC / AC Power Supply
Dual Universal Input
For most types of pulse and
AC output sensors.
Transducer Excitation Supplies Tough but Attractive
5V and 12VDC supplies The enclosure uses flame
are fitted as standard to retardant (VO) materials
power most sensor types. and the front panel
conforms to IP65.
Clear Display Universal Power Input
The flat, slightly Wide ranging
recessed six digit 90 to 265 VAC input
display together with allows worldwide
high brightness red or installation.
green LED's ensure A low voltage 24V
maximum visibility AC/DC input option
even in difficult is available.
lighting conditions.
The Tracker 280 series of indicators are designed for demanding industrial applications for use with sensors that
give AC or pulse outputs. The Tracker 280 Series can be used for measurement and display only applications or
can act as a transmitter using the analogue output. The alarm option allows the Tracker 280 to be used as an
alarm trip or batch controller. The unit is fitted with a serial communication interface as standard allowing it to
be used as a front end device for PC based systems. The combination of the dual universal inputs together with
the power and flexibility of the software allows customers and distributors to reduce stock and spares inventory to
a minimum. The Tracker 280 series are styled to match other indicators in the Tracker 200 range.
Applications include:
Pulse totalisation - Pulses are scaled to engineering units. Batch control
Pulse rate - Scaled pulses for rate (e.g. litres per minute) Position measurement with encoders
Frequency measurement - Scalable for rate (e.g. rpm) Encoder quadrature measurement
Up/Down counting General timing
Tracker 280 series of indicators have been tested and comply with the European Electromagnetic Compatibility
Directives and safety requirements. The units are CE marked.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
TRACKER 280 APPLICATIONS
Two Channel Counting Counter A Measured Value
User
Scale Maths Measured Value
Channel A De-Bounce Invert A
B
A+B
A-B To Totaliser
Scale A Rate Derived Rate of A
De-Bounce Invert B Rate
Channel B Derived Rate of B
Ratio
Maths Derived Ratio
Counter B Measured Value
Counting on Channel A, Direction Controlled by the State (or Phase for Encoder) of channel B
Direction Control Scale To Totaliser
UP/DOWN
Channel A De-Bounce Invert OR Inhibit A
Count Maths Derived Rate of A
Display Range Control.
-199999 to 999999.
Channel B De-Bounce Invert 6 Digit Mode Only Display
(If Enabled)
Dual Channel Frequency Measurement
User
Scale & Linearise Maths
Channel A De-Bounce A Measured Value
B
A+B
Low frequency A-B
cut off
Scale & Linearise A Rate Derived Total of A
B Rate
De-Bounce Derived Total of B
Channel B Ratio
Maths Ratio %A v %B
Low frequency
cut off
Timing of Period, Pulses and Cumulative Time
6 or 12 Digit
User Totaliser
Period Maths
Scale & Linearise
Channel A A
De-Bounce Invert B
Proportion Hi/Low A+B
A-B Measured
High Pulse Derived Rate
Scale & Linearise A Rate of A
B Rate Derived Rate
Channel B De-Bounce Invert Ratio of B
TIME - Independent
Maths
Selection For Ratio
Each Channel
Timing of Edges between Channel A and B
Edge Timing 6 or 12
Channel A De-Bounce Invert A B Scale Digit Totaliser
Measured Value
Channel B De-Bounce Invert
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
TRACKER 280 APPLICATIONS
Functions
De-bounce is normally turned off for all sensor types except contact closure. This feature inhibits
De-Bounce multiple counts which can be caused by contact bounce, and is selectable between 1 and 255 milliseconds
in 1 millisecond steps.
Invert Allows the input signal to be inverted.
Scale Allows the input count, frequency or time to be converted into engineering units. Scale and Linearise
also allows an eight-point user linearisation to be applied to compensate for non-linear sensor
output signal rates e.g. turbine flow meters.
Low frequency cut off. This allows low input frequencies to be regarded as zero (user adjustable).
Pre-Scaler for totalising values. This allows the totalled values to be in different engineering units,
or at a different resolution, from the real time measured value.
Batch Counter Control Functions
The Batch Controller functions are used for controlling batching type applications. The user can select from the following
control modes:
Mode 1 On trigger, output 1 & 2 are turned OFF - unit counts (in engineering units) from a pre-set `reset' value.
When batch setpoint 1 is reached, output 1 is turned ON - counts continue to be accumulated.
When batch setpoint 2 is reached, output 2 is turned ON - counts continue to be accumulated.
Unit waits for the next trigger, which must be toggled OFF then ON to reset the batch control.
Mode 2 On trigger, output 1 & 2 are turned OFF - unit counts (in engineering units) from a pre-set `reset' value.
When batch setpoint 1 is reached, output 1 is turned ON - counts continue to be accumulated.
When batch setpoint 2 is reached, O/P 2 is turned ON and O/P 1 OFF - counts continue to be accumulated.
Unit waits for the next trigger, which must be toggled OFF then ON to reset the batch control.
Mode 3 On trigger, output 1 & 2 are turned OFF - unit counts (in engineering units) from a pre-set `reset' value.
When batch setpoint 1 is reached, output 1 is turned ON - counts continue to be accumulated.
When batch setpoint 2 is reached, output 2 is turned ON - counts continue to be accumulated.
Automatic re-trigger will occur if the trigger state is correct (no need to toggle trigger).
Counts continue to be accumulated.
Mode 4 On trigger, output 1 & 2 are turned OFF - unit counts (in engineering units) from a pre-set `reset' value.
When batch setpoint 1 is reached, output 1 is turned ON - counts continue to be accumulated.
When batch setpoint 2 is reached, O/P 2 is turned ON and O/P 1 OFF - counts continue to be accumulated.
Automatic re-trigger will occur if the trigger state is correct (no need to toggle trigger).
Counts continue to be accumulated.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
TRACKER 280 FEATURES
PNP NPN AC Contact TTL Encoder
Closure (Quadrature)
Dual Universal Inputs
The Tracker 280 can be directly connected to most popular process sensors including AC magnetic pickups and pulse output
devices. All input types can be scaled to display values in the users preferred engineering units. The user can select to use the
internal crystal controlled clock or calibrate to a known external standard. Transducer excitation is provided as standard
giving 5 or 12VDC. An 8 point user linearisation can be used to compensate for non-linear sensor outputs for frequency and
timing applications. Encoder measurement offers bi-directional pulse counting. A further four times resolution is available
when used in quadrature mode.
Serial Communications
All Tracker 280 series indicators are supplied with RS422/485 serial communications as standard. This interface allows
computer based systems to read values (e.g. the measured value) and write values (e.g. alarm setpoints) to and from the
instrument. The Tracker 280 has three protocols including the widely used MODBUS RTU (J-BUS).
Tracker 284 Tracker 285
N/O Com
Com ALARM 1
N/C Alarm 1
Alarm 2
N/O
Com ALARM 2 Alarm 3
N/C Alarm 4
Alarm and Batching Control Outputs (T284 & T285)
The Tracker 284 is fitted with two relay outputs and the Tracker 285 has four TTL outputs. Setpoints can be adjusted at the
time of configuration and can be password protected or adjusted using the buttons on the front panel. Each alarm can be used
in High, Low or Deviation mode. Outputs can be configured to give a pulse for a user selectable time period, and can be
latching with independent delay times for both on and off conditions. In addition they can be set to be energised or
de-energised when in the alarm condition or when a batch (count) value is reached.
+
0 - 10V, 0 - 20mA or 4 - 20mA DC
-
Analogue Output
The measured value can be transmitted as a 0 to 10 Volt, 0 to 20mA or 4 to 20mA signal to other devices such as chart
recorders or data loggers. The fully isolated output can be scaled for any portion of the display range e.g. 4 to 20 mA = 500.00
to 800.00 (Litres/m). The analogue output can be configured to re-transmit rate, time or totalised (6 LSD) values.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
TRACKER 280 CONFIGURATION
The instrument can be set up using the front panel buttons. The
Tracker 280 prompts the user for each set-up parameter in an easy to
use menu system. Configuration can be password protected to avoid
unauthorised access. A Windows compatible software program is also
available for set-up, configuration storage and down-loading to and
from the Tracker 280. The RS422 / 485 serial communications
interface is available as standard on all Tracker 280 models.
Tracker 280 Specification Analogue Output
Display Output: 0-10v , 0-20mA or 4-20mA (programmable). Fully scalable
Type: 14.2mm high brightness red LED (green option) Isolation: 500VDC/ peak AC
Range: 6 digit (-199999 to 999999) Maximum output: 22mA (18V)
Resolution: Selectable for real time and totalled values Temperature drift: <150ppm
Update rate: 2, 4 or 10 per second (programmable) Accuracy: 0.2% of span (worst case), 0.1% typical @ 25°C ambient
- Also dependant on input rate (timer modes) Load: 0 - 900 Ohms (mA output)
Inputs Resolution: 0.05% ( 5mV/ 0.01mA )
Two inputs, each configurable for: AC magnetic pickup, contact closure, Maximum voltage output: 11V @ 22mA)
TTL logic and (NPN/ PNP) Maximum current output: 22mA @ 18V
Measurement: Up to 150Khz Programmable output filter
Time base/measurement accuracy: Better than 100ppm Can transmit a displayed value or maths derived value
Pulse/frequency: User scaling for both channels. Adjustable gate time. Alarm Relays (T284)
Isolated to all other inputs and outputs except for the status inputs and Relays 1 & 2: Change over contacts
excitation supplies. Not isolated between input channels Rating: 1 Amp @ 250VAC, 5 Amp @ 30VDC
User linearisation: 8 point per channel, for frequency and timing modes Alarm TTL Outputs (T285)
Transducer Supplies 4 off, TTL open collector outputs
5 or 12VDC up to 100mA. Not isolated to the signal inputs Serial Communications
Measurement Modes Interface Type: RS422 / 485, 2 or 4-wire multidrop
Count (6 or 12 digit) and totalisation, up/ down and quadrature count, Isolation: 500VDC/ peak AC
dependent on the phase or state of channel B. Frequency and timing Speed: 1200, 2400, 4800 or 9600 baud
measurement with integrated totalisation. Scaling to engineering units for Parity: Odd, even or none
all modes (e.g. Pulse rate to rpm, time period to mph or kph etc.). Stop bits: 1 or 2
Maths Functions Protocols: User selectable for MODBUSTM RTU (J-BUS),
Pre-set, Tare or Zero (programmable), Max/Min memory, Ch1 - Ch2, MODBUSTM ASCII and DTPI (Data Track Process Instruments)
Ch1+Ch2, count up/down, Elapsed Time, Totalise Time, Average Times, Physical/ Mechanical
Total Period of a Cycle Time, Ratio of a Period, Ratio of Ch1 v Ch2. Front panel: Protection to IP65
Front Panel Function Buttons & Status (Logic) Inputs: Dimensions (mm): 48(H) x 96(W) x 173(D)
2 x buttons & 2 x status inputs, each user programmable for the following Panel cut-out (mm): 44(H) x 92(W)
functions: display zero/reset (to a pre-set value), display hold, count Weight: 0.4Kg (max), packed weight 0.55Kg
start/stop, lamp test, display max, display min, display average, alarm Environmental
acknowledge, alarm inhibit, display most/least significant totalled value, Temperature: 10-50°C operating, -10 to 70°C storage
display rate/total toggle, analogue output hold*, keyboard inhibit*. Humidity: 0-95% RH non condensing
* Status inputs only
Safety and EMC
Ordering Code
Safety: EN61010
Susceptibility: EN50082-2
Emissions: EN50081-1
CE Certified 2000
Model Number Power Display
Tracker 283 Timer Counter
Tracker 284 Timer Counter with Dual Alarm Relays
Tracker 285 Timer Counter with 4 TTL Alarm Outputs
Power 1 = 90 to 256VAC 50 or 60Hz, 2 = 24VAC/DC
CompuMess Elektronik GmbH Display R = Red G = Green
Example 284-1-G
Lise-Meitner-Str.1, 85716 Unterschleissheim Tracker 284 Timer Counter with
Tel 089-321501-0 Fax 089-321501-11 Mains Supply and Green Display
http://www.compumess.de oder http://www.netzteile.de
Specifications subject to change without notice. All trademarks acknowledged.