Ditel KOSMOS Series Manual

KOS203TC
KOS203TC-2
PUSH BUTTON
THERMOCOUPLE
TEMPERATURE
TRANSMITER
Ekos203tcmanual.doc 30727139
WARRANTY
The instruments are warranted against defective materials and
workmanship for a period of three years from date of delivery.
If a product appears to have a defect or fails during the normal use
within the warranty period, please contact the distributor from which
you purchased the product.
This warranty does not apply to defects resulting from action of the
buyer such as mishandling or improper interfacing.
The liability under this warranty shall extend only to the repair of the
instrument. No responsability is assumed by the manufacturer for
any damage which may result from its use.
KOSMOS SERIES
1.0 DESCRIPTION
The transmitter is an in head 4-20mA transmitter that connects to a
standard thermocouple sensor and converts the sensor temperature to a
4-20mA signal.
An LED provides visual indication of sensor fault and programming mode.
The transmitter is simply ranged and calibrated on the bench by using a
single on-board push button switch, without the need for soldering links.
Digital technology ensures accurate and drift free linearisation to common
curves, providing a level of performance not possible with earlier analogue
types.
2.0 SPECIFICATION @25 C
2.1 INPUT
Input Type
Accuracy 0.04% FS ±0.04% rdg or 0.5ºC (which ever is greater)
Linearisation
Cold junction tracking
Cold junction range
Min. Span
Febrary 2004
Sensor Lead Length
Sample Rate
2.2 OUTPUT
Output
Maximum Output Range
Operating Voltage
Burnout
Protection
Input/Output Isolation
Warm-up time
EMC
Ambient Temp. Range
Ambient Humidity
Ambient Storage
Calibration period
Dimension
Weight
Default range
KOS203TC K 200 to 1370ºC
J 200 to 1200ºC
T 200 to 400ºC
KOS203TC-2 R 0 to 1760ºC
S 0 to 1760ºC
B 0 to 1820ºC
BS4937 / IEC 584, EN60584
0.02ºC/ºC
-20 to 70ºC
10ºC
Maximum length 3 metres
to maintain CE compliance
500mS
4 to 20mA, 2 wire loop powered
3.8 to 22mA
8 to 30V DC
Up-Scale 21mA (Down scale to order)
Red programming LED comes on when
Temperature is outside operating range
Reverse Polarity Protected
50V DC (tested to 200V)
2 minutes to full accuracy
BS EN61326
-20 to 70ºC
0 to 95% (non condensing)
-40 to 90ºC
12 months to maintain published
Specification. 5 years to twice specification.
43mm Diameter 21 mm Height
26 grams
Type K 0-1000ºC
3.0 INSTALLATION
3.1 Mechanical
This transmitter has been specifically designed to be mounted inside a
DIN Standard probe head enclosure, which must provide adequate
protection from moisture, corrosive atmosphere etc. All cable entries
should be sealed using the correct size cable gland. Care must be taken
when locating the transmitter to ensure the ambient temperature will
remain inside the specified range of 20 to 70ºC. The diagrams show the
mechanical layout and typical application of the transmitter mounted
inside a probe head enclosure, with sensor wires entering through the
center hole.
3.2 Electrical
Connections to the transmitter are made to the screw terminals
provided on the top face. To maintain CE compliance, input wires must
be less then 3 metres in length and output wiring must be screened
cable with the screen earthed at one end only. A hole is provided
through the centre of the transmitter to allow sensor wires, (entering
direct from the probe assembly via a base entry) to be threaded through
the transmitter body, direct to the input screw terminals. The screw
terminals have been designed to allow all connection wires to enter
from either an inner or outer direction.
The transmitter is protected against reverse connection, therefore
incorrect connection of the output wires will result in near zero current
flow in the loop. On power-up the LED also indicates the thermocouple
type by flashing once, twice, or three times, the number of flashes
representing the index of the thermocouple type shown on the
transmitter label.