COMET SYSTEM Pt1000 Temperature Probe and Transducers Instruction Manual
- June 9, 2024
- COMET SYSTEM
Table of Contents
Temperature probe and transducers
for Pt1000 with (4-20) mA output
Instruction manual
Air temperature probes
P0102, P0120, P0122 and P0132
Temperature transducers Pt1000
P41x1
Pt1000 Temperature Probe and Transducers
Instruction manual of temperature probes P0102, P0120, P0122, P0132 and
transducers P41x1
Probe P0120 is designed for measurement of air temperature, transducers P0102,
P0122 and P0132 for temperature measurement in stainless steel well (well is
not included). Transducers P4121 to P4171 (next only P41x1) without own
temperature sensors are designed for signal conversion from RTD sensor Pt1000
(3850 ppm / °C) to current. All aforesaid devices have linear current output
(4-20) mA for two wire connection.
Technical parameters:
Type| Range [°C]| Current output[mA]| Accuracy[°C]| Formula for Calculation of
temperature [°C, mA]| Formula for calculation of current [mA, °C]
---|---|---|---|---|---
P0102| -30 to +60| 4 to 20| ±0.4| T= 5.625 I – 52.5| I = (T + 52.5) / 5.625
P0120| -30 to +80| 4 to 20| ±0.4| T= 6.875 I – 57.5| I = (T + 57.5) / 6.875
P0122| -30 to +80| 4 to 20| ±0.4| T= 6.875 I – 57.5| I = (T + 57.5) / 6.875
P0132| 0 to +150| 4 to 20| ±0.4°C(1)| T= 9.375 I – 37.5| I = (T + 37.5) /
9.375
P4141| -100 to +30| 4 to 20| ±0.3| T = 8.125 I – 132.5| I = (T + 132.5) /
8.125
P4121| -30 to +80| 4 to 20| ±0.3| T= 6.875 I – 57.5| I = (T + 57.5) / 6.875
P4151| 0 to +35| 4 to 20| ±0.2| T = 2.1875 I – 8.75| I = (T + 8.75) / 2.1875
P4131| 0 to +150| 4 to 20| ±0.3| T = 9.375 I – 37.5| I = (T + 37.5) / 9.375
P4161| 0 to +250| 4 to 20| ±0.4| T= 15.625 • I – 62.5| I = (T + 62.5) / 15.625
P4171| 0 to +400| 4 to 20| ±0.7| T=25I- 100| I = (T + 100) / 25
P4191| -50 to +50| 4 to 20| ±0.3| T=6.25I- 75| I = (T + 75)/ 6.25
(1) …. for temperature up to 100ºC. For temperature over 100ºC is accuracy of
measurement ±0.4 % from reading
The accuracy of P0120 is determined for temperature at the end of the stem
with airflow less than 0.5 m/s.
The accuracy of transducer P41x1 is an input accuracy in respect of table
value of sensor Pt1000/3850 ppm.
Current output in the case of error:
P41x1: more than 24 mA in the case of disconnected probe
P41x1: less than 3.5 mA in the case of shorted probe
Power:
Power of device is allowed from 9 V to 30 V DC (typically 24 V), maximum
ripple 0.5 %
Response time:
P0120: t63 < 2 min, t90 < 4 min (temperature step from +25 °C to +80 °C,
airflow c.1 m/s)
P01x2: t63 < 45 s at temperature step (0..100) °C, stem with well immersed to
fluid, flow velocity 1 m/s
P41x1: depends on connected temperature probe.
Operating temperature and humidity range:
Temperature of case -30 to 80 °C with humidity from 0 to 100 %RH without
condensation
Operational position:
P0120: installation on the wall with the stem towards down
For devices P41x1, P01x2 in well there is no limitation in working position
Outer characteristics in accordance with Czech National Standard 33-2000-3:
Normal environment with the specifications: AM1, BE1, CB1
Not allowed manipulations:
It is not allowed to operate the device under other than specified conditions
in technical parameters. Devices are not designed for locations where
mechanical vibrations can appear and for locations with chemically aggressive
environment.
Recalibration: Interval of metrological verification depends on concrete
application. Recommended period is about 1 year.
Protection of electronic: IP65 (tighten glands, tighten case lid with inserted
packing of lid)
Storing conditions: Temperature from -30 to +80 °C, humidity from 0 to 100 %RH
without condensation
Material of the case: ASA
Dimensions: see dimension drawing
Weight: P0120 approx. 120 g, P01x2 approx. 140 g, P41x1 approx. 125 g
Liquidation: Device itself (after its life) is necessary to liquidate
ecologically according to currently valid conditions!
Installation:
Described devices are supplied from external power source by a cable. The
cable is used for transmission of measurement temperature to sensing device
too. It is recommended to use shielding copper cable (e.g. SYKFY) and the
shielding connect to ground terminal of sensing side. Outside diameter of the
cable must be from 4 to 8 mm, maximal cross-section area 2.5 mm² and maximal
length 1200m. The cable must be located at indoor rooms (probe is not
protected for outdoor use).
The cable should not be led in parallel along power cabling. Safety distance
is up to 0.5 m otherwise undesirable induction of interference signals can
appear.
For connection of the cable is necessary to unscrew four screws at case
corners and remove lid. Lace the cable through a gland at the case wall.
Connect the cable to terminals with respecting the signal polarity (see
figure). Terminals are self-clamping and can be opened by a suitable
screwdriver. For the opening, insert the screwdriver to upper terminal hole
and lever by him.
Transducers P41x1 in itself not measure a temperature. The temperature is
measured an external two-wired probe Pt1000/3850ppm with shielding. Connection
of the probe is similar to connection of power cable. Lace the probe cable
through a second gland at the opposite site of the case. Connect the probe
cable to three terminals (see figure). Attention, a shielding of probe cable
must not be connected to anything else! Therefore it is suitable to secure
probe cable towards mechanical damage. Restriction of the cable location is
the same as the restriction of power cable location. That means the probe
cable should not be located near to power of electronic jamming. Maximal
length of probe cable is 10m.
Do not remember to tighten glands and case lid with inserted packing after
cables connecting. It is necessary for warranting of protection IP65.
Typical application circuitry, wiring of the terminals:
Range of power voltage U0 at input terminals of device can be from 9 V to 30
V. Whence it follows that absorbed power for current 20 mA can be from 0.18 W
to 0.6 W. The power made heating of the device. It is recommended to have it
as small as possible. Small power voltage U0 can be ensured by optimum
selection of voltage USS and resistor RZ. If the voltage and resistor are
fixed, it is possible to insert proper serial resistor R to the current loop
at the sensing device side. Selection of the resistor RZ or R can be made by
graph. Device is able to work in zone no.2 and 3. The zone no.2 is optimal.
Device is not able to operate in zone no.3. There are not ensured minimal
power voltage of device U0 = 9V for current 20 mA.
Electromagnetic compatibility (EMC tests):
Devices are conformed EN 61326-1 in the range:
Radiation:
Immunity:| EN 55022
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-6| class B
levels 4/8 kV, class A
intensity of electromagnetic field 3 V/m, class A
levels 1/0.5 kV, class A
intensity of electromagnetic field 3 V/m, class A
---|---|---
Technical support and service:
Distributor of the devices provides a technical support and service. Contact
to distributor is given at a warranty certificate.
© Copyright: COMET SYSTEM, s.r.o.
This User’s Guide may not be copied, and its contents may not be changed in
any way without explicit consent of COMET SYSTEM, s.r.o.
All rights reserved.
The COMET SYSTEM, s.r.o. company is continuously developing and improving its
product.
COMET SYSTEM, s.r.o. reserves the right to carry out technical changes in
equipment or product without any previous notice.
Contact address of this device’s producer:
COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61 Roznov pod Radhostem
Czech Republic
www.cometsystem.com
IE-SNC-Pxxxx-10
Documents / Resources
|
COMET SYSTEM Pt1000 Temperature Probe and
Transducers
[pdf] Instruction Manual
P0102, P0120, P0122, P0132, P4141, P4121, P4151, P4131, P4161, P4171, P4191,
Pt1000 Temperature Probe and Transducers, Pt1000 Temperature Probe,
Temperature Probe, Pt1000 Transducers, Transducers
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