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CS250DM PT-1000 Klasse A, präziser Lufttemperatur-Sensor mit digitaler Modbus RS-485 Ausgabe
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Der CS250DM ist PT-1000 Klasse-A Lufttemperatursensor z.B. zur Messung von für Temperaturgradienten und zur Stabilitätsanalyse. Dieser Sensor liefert besonders genaue Temperaturwerte, die für Solar Monitoring nach IEC 61724 Class-A und Delta Temperatur (ΔT) Berechnungen gebraucht werden. Datenausgabe erfolgt über Modbus RS-485, daher sind die Daten auch über lange Kabel gut abzurufen.

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Funktionen und Vorteile

  • Sehr genau und präzise
  • Übertrifft IEC 61724-1 Standards für Lufttemperaturmessungen
  • Übertrifft EPA Standards for ΔT Messungen
  • Digital Modbus RS-485 Ausgabe ermöglicht Datenqualität auch bei langen Kabeln
  • Beste Rauschunterdrückung und Isolierung nach IEC Klasse 4
  • NIST-Kalibrierung mit Zertifikat inklusive bei jedem Sensor


CS250DM sensor
CS250DM sensor
CS250DM sensor
CS250DM sensor with Ships With items

Technische Beschreibung

The CS250DM uses a precision Pt-1000 Class A platinum resistor thermometer (PRT) to provide the highest level of accuracy. The cable includes a Campbell Scientific precision analog-to-digital, smart-sensor module for making the measurements. The module design is optimized for the class A PRT that minimizes self-heating and lead-wire resistance. Measurement electronics are surge protected with 1200 V isolation and environmentally protected with a rugged overmolding with an IP65 rating.

When exposed to sunlight, the CS250DM should be housed in the RAD06 6-plate radiation shield.


Measurement Uncertainty ±0.3°C
Element Stem Material 316L stainless steel sheathed
Surge Protection 1200 V isolation
Supply Voltage 5 to 30 Vdc
Power Draw 15 mA
Temperature Coefficient TCR = 3850 ppm/K
Stem Diameter 0.32 cm (0.125 in.)
Overall Stem Length 6.35 cm (2.5 in>0
Sensor Dimensions 17.15 x 11.13 x 6.05 cm (6.75 x 4.38 x 2.38 in.)
Sensor Weight 90.7 g (0.2 lb)

Sensing Element

Precision 1000 ohm Class A platinum (Pt 1000)
Accuracy ±(0.15 + 0.002T)°C
Long-Term Stability Maximum Ro drift = 0.04% after 1000 hours at 400°C
Measurement Temperature Range –75° to +250°C
Time Constant 15 seconds in 5 m/s wind


Protocol Modbus RTU protocol (over RS-485)
Format 8 data bits, 1 stop bit, even parity as default (user-configurable)
Baud Rate 19,200 bps as default (user-configurable)
Modbus ID Last two digits of serial number as default (user-configurable)

Cable (Sensor Head to DM Board)

Wire Size and Type 24 AWG (7/32,RT38) copper
Insulation Type PFA insulated (Teflon®)
Insulation Rating –75° to +250°C
Sheath Thin PFA sheathed overall
Number of Cores 3
Physical Properties Good abrasion and moisture resistance
Overall Diameter 2.1 mm (0.08 in.)

Cable (DM Board to PT)

Wire Size and Type 24 AWG (7/32) tinned copper
Insulation Type PVC
UL AWM 10012 1000V 105°C
Filler Fibrillated polypropylene as required for uniform round construction
Drain 24 AWG (7/32) tinned copper (cabled, touching foil)
Shield Aluminum/Mylar (100% coverage, 25% minimum overlap, foil facing in)
Nominal Wire Diameter 0.61 mm (0.024 in.)

Kompatibel mit

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.


Product Compatible Note


CS250DM Example Program v.1 (1 KB) 07-12-2020

The example CR6 program measures four CS250DM sensors, averages the four temperature measurements, and calculates the standard deviation of the four sensors.

Aufgelistet unter

Common Accessory for the following products: