Cobra4
Cobra4 Sensor-Units Cobra4 Sensor-Unit “Temperature, semiconductor -20…110°C”
wireless 12640.00
Cobra4 Sensor-Unit “2x Temperature NiCr-Ni”
12638.00
The Cobra4 Sensor-Unit “Thermodynamics” is a microcontroller-controlled sensor for absolute pressure and temperature measurements. In order to measure the pressure in devices, the Sensor-Unit is equipped with an olive-type metal coupling with an external diameter of 8 mm. Via this coupling, the devices can be connected to the pressure sensor inside the housing. The Sensor-Unit can also be equipped with two NiCr-Ni thermocouples (type K) in order to measure up to two temperatures simultaneously or to measure a temperature difference and absolute pressure simultaneously. The unit can be connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: Temperature Pressure Measuring range: -200°C to +1200°C 0 to 2000 hPa, absolute Resolution: 0,1 K 0,1 hPa Accuracy: corresponds to the accuracy of the sensors that are used Max. data throughput rate: 5 Hz Dimensions: approx. 62 mm x 110 mm x 35 mm
Cobra4 Sensor-Unit “Chemistry, pH, and 2 x temperature NiCr-Ni”
12630.00
The Cobra4 Sensor-Unit “pH and 2x temperature NiCr-Ni” is a microcontroller-controlled sensor for pH, potential, and temperature measurements. It can be equipped with two NiCr-Ni thermocouples (type K) and a combined pH measuring and reference electrode or a redox electrode in order to measure up to two temperatures and a pH or potential value simultaneously. The unit can be connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: Temperature pH Potential Measuring range: -200°C to +1200°C 0 to 14 pH -2000 to +2000 mV Resolution: 0,1 K 0,01 pH 0,1 mV Accuracy: corresponds to the accuracy ±0,5% ±0,5% of the sensors that are used Max. data throughput rate: 5 Hz Dimensions: approx. 62 mm x 63 mm x 35 mm
Thermocouples NiCr-Ni (type K) Several different types of NiCr-Ni thermocouples with a standard type K 2-pin flat connector that is free from thermoelectric voltage. These thermocouples can be connected to the Cobra4 Sensor-Units “2x temperature” (12641.00), “Thermodynamics” (12638.00), and “Chemistry” (12630-00). Ref. no. Name Description 13615.02 Thermocouple NiCr-Ni, single type, Glass silk insulation, spot-welded tip; -40…+500°C Response time: approx. 2 s; l = -; = 1.0 – 2.0 mm Cable length: 1.5 m 13615.01 Thermocouple NiCr-Ni, microsheath, Magnesium oxide insulation, sheath made of stainless steel; -50…+1100°C Flexible: bend radius approx. 1 mm; l = 100 mm; = 0.5 mm Response time: < 1 s; Cable length: 2.0 m 13615.03 Immersion probe NiCr-Ni, stainless steel, For liquids and gases, thermocouple in a protective steel tube; -50…+1000°C Response time: approx. 5 s; l = 120 mm; = 3.0 mm; Cable length: 1.0 m 13615.05 Immersion probe NiCr-Ni, Teflon, For liquids and gases, thermocouple in a protective PTFE tube; -50…+300°C Response time: approx. 10 s; l = 250 mm; = 7.0 mm Cable length: 1.5 m 13615.04 Surface probe, NiCr-Ni, up to 1000°C To measure surface temperatures; thermocouple on a copper plate; Response time: approx. 3 s; l = 120 mm; = 4.0 mm (plate)
excellence in science
12631.00
12641.00
The Cobra4 Sensor-Unit “2x Temperature NiCr-Ni” is a microcontroller-controlled sensor for temperature measurements. It can be equipped with two NiCr-Ni thermocouples (type K) in order to measure up to two temperatures simultaneously or to measure a temperature difference. The unit can be connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: Temperature measuring range: -200°C to +1200°C Resolution: 0.1 K Measuring accuracy: corresponds to the accuracy of the sensors that are used Max. data throughput rate: 5 Hz Dimensions: approx. 62 mm x 63 mm x 35 mm
Cobra4 Sensor-Unit “Thermodynamics, absolute pressure, and 2x temperature NiCr-Ni”
Cobra4 Sensor-Unit “pH, BNC connector”
The Cobra4 Sensor-Unit “pH, BNC connector” is a microcontroller-controlled sensor for pH and potential measurements. It can be equipped with a combined pH measuring and reference electrode or with a redox electrode in order to measure the pH or potential values. The unit can be connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: pH measuring range: 0…14 pH Resolution: 0.01 pH Measuring accuracy: ± 0.5% Max. data throughput rate: 5 Hz Dimensions: approx. 62 mm x 63 mm x 35 mm
This temperature sensor with a stainless-steel sheath can be directly connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: Temperature measuring range: -20…110°C Resolution: 0.05°C Accuracy: ± 0.5°C Max. data throughput rate: 200 Hz Dimensions: l = 200 mm, = 6 mm, cable length = 120 cm Connector: 15-pin Sub-D
pH electrodes with BNC connectors All the pH and redox electrodes with a BNC connector can be connected to the Cobra4 Sensor-Units “Chemistry” (12630.00) and “pH, BNC connector” (12640.00). For the measurement value display, the user can choose between the units pH and mV. The sensors can be calibrated by a one-point or two-point calibration. 46265.15 pH electrode, plastic, gel-filled, BNC 46266.15 pH electrode, plastic, refillable, BNC 46268.10 pH electrode, glass, refillable, BNC 46267.10 Platinum redox electrode, plastic, gel-filled, BNC
Cobra4 Sensor-Unit “Conductivity+, conductivity/temperature (Pt1000)”
12632.00
The Cobra4 Sensor-Unit “Conductivity/temperature (Pt1000)” is a microcontroller-controlled sensor with a 5-pin diode socket for connecting conductivity sensors with a cell constant of k = 1.00 cm–1 or Pt1000 temperature sensors. The Sensor-Unit can be directly connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: Temperature Temperature measuring range: –20°C to +150°C Resolution: 0,1 K Measuring accuracy: ±0.5K (in the range of 0…100°C) Conductivity Measuring range 1: 0 to approx. 2,500 μS/cm Measuring accuracy: 4% of the measured value ±0.15 μS/cm Measuring range 2: 0.0 to approx. 45,000 μS/cm Measuring accuracy: 4% of the measured value ±3 μS/cm Measuring range 3: 0.0 to approx. 1,100 mS/cm Measuring accuracy: 4% of the measured value ±0.05 mS/cm Measuring cycle: 0.8…2s (will be set automatically) Dimensions: approx. 62 mm x 63 mm x 35 mm
Conductivity/temperature sensor Pt1000
13701.01
This conductivity sensor is suitable for the Sensor-Unit “Conductivity” (12632.00) and has an integrated Pt1000 temperature sensor and a 5-pin diode connector. Technical data: Cell constant: k = 1.0/cm (comes with a test certificate with the exact value) External diameter: 12 mm, Min. immersion depth: 10 mm
Temperature immersion probe Pt1000
12123.00
This Pt1000 temperature sensor is suitable for the Sensor-Unit “Conductivity” (12632.00) and has a stainless-steel sheath and a 5-pin diode connector. Technical data: Measuring range: -20…+850°C Diameter: 3.2 to 4.0 mm Cable length: 1.5 m
Cobra4 Sensor-Unit “Conductivity, with a stainless-steel sensor”
12633.00
The Cobra4 Sensor-Unit “Conductivity” has a cable-bound conductivity measuring cell with two robust stainless-steel pins in a plastic sheath and an integrated temperature sensor for the temperature compensation of the conductivity values. This sensor unit is particularly suitable for field experiments. It can be directly connected to the Cobra4 Wireless-Link, Cobra4 Mobile-Link, or Cobra4 USB-Link. Technical data: Temperature: Conductivity Measuring range: –200°C to +1200°C 0,2...2.000 µS/cm 10...20.000 µS/cm 100...200 mS/cm Resolution: 0,1 K 0,1 µS/cm / 1 µS/cm / 10 µS/cm Measuring accuracy: ±0,8 K 6% of the measured value ±0.2 μS/cm Max. data throughput rate: 1 Hz Cable length: 60 cm Dimensions: ca. 62 mm x 63 mm x 35 mm
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