Latest News from Kobold Instruments 2023

TBE – BiMetal Thermometer

Features

The bi-metal thermometers are built from a stainless steel tube inside of which a bi-metal helicoidal spiral is placed. This spiral is welded to the tip of the tube and on the other side to a transmission shaft directly connected to the pointer. The temperature vibrations generate a deformation of the bi-metal which is transmitted to the pointer through a shaft rotation.

Technical data

• Measuring range: -50 … +50 … 0 … +600°C
• Connection: back or bottom, G ½, G ¾, ½” NPT
• ¾” NPT male thread, stainless steel
• Housing material: stainless steel
• Housing: Ø 100, 125, 150 mm
• Accuracy class: 1.0

Data Sheet TBE – BiMetal Thermometer

KZA – Gear Weel Flowmeter

Features

The Gearwheel Flow Meter, model: KZA, for viscous liquids, is a cost-effective flow-measuring unit. The unit consists of a pair of gearwheels, which is driven by the flow-current, according to the working principle of a gear-wheel motor. A pick-up sensor, separated from the measuring-chamber, reads the speed of gearwheels through the casing wall in a non-contacting manner.

Technical data

• Measuring range: 0.02 – 4 l/min … 1 – 200 l/min liquid
• Viscosity range: max. 4000 mm²/s
• Connection: G ¼, G 1 female thread
• Material: aluminum
• pmax: 160 bar
• tmax: 120°C
• Linearity: ±0.3 % … ±3 % of reading
• Options: Pulse output, relays, analogue output, counter, contacts, batcher, digital display

Data Sheet KZA – Gear Weel Flowmeter

KET – Compact Inline Thermal Flow Sensor

Features

The newly developed KET combines modern digital interfaces for connection to energy monitoring systems with a small, compact design. The KET is always used when many machines (compressed air consumers) are to be integrated into an energy monitoring network.

Technical data

• Measuring Range: 0.3 – 20 Nm³/h … 3 – 1450 Nm³/h air max. 224 Nm/s
• Accuracy: ±1.5 % of reading ±0.3 % of full scale
• Option ±1.0 % of reading ±0.3 % of full scale
• pmax: 40 bar
• tmax: 80 °C
• Connection: G ½ … G 2 female; ½” … 2″ NPT female
• Material: Sensor- st. steel 1.4571, glass
• Output: Modbus RTU, 4 – 20 mA, pulse, alarm

Data Sheet KET – Compact Inline Thermal Flow Sensor

AFK – Sensors for Humidity and Temperature

Features

Sensors in the AFK-A series combine the digital measured value processing with the advantages of our robust industrial sensors which can be used at temperatures up to -80 … 200 °C resp. at pressures up to 25 bar. They are ideally suited for demanding industrial applications: sensor part and transmitter can be combined and matched with each other, according to the physical and mechanical requirements. The measured humidity and temperature values are calculated in the calibrated sensor part with the calibration values stored there, and are passed on as digital measurement values.

Technical data

• Operating range: -80 … +200 °C (temperature) 0 … 100 % rh (humidity)
• Accuracy: ±1,5 % rh at 23 °C / < 90 % rh ±2 % rh at 23 °C / > 90 % rh or < 10 % rh
• pmax: 25 bar
• tmax: -40 … 85 °C (housing), -80 … +200 °C (sensor)
• Output: 0 … 1 V, 0 … 10 V, 4 … 20 mA
• Dew-point, enthalpy, mixing ratio, absolute humidity, wet-bulb temperature
• Option: display, exchangeable transmitters/sensors

Data Sheet AFK – Sensors for Humidity and Temperature

NAS – Tilt Level Switch

Features

The tilt level switch model NAS has been designed to provide high level measurement in silos or any other type of storage containers located in non-hazardous areas. The NAS can be used in all grain solid applications with acceptable minimum density and grain size. Its operation is very simple: Vertically suspended at the desired high level point, the NAS will tilt as the grain reaches the unit.

Technical data

• Contact: 1 micro-switch
• Material: Polypropylene (PP)
• pmax: 3.5 bar
• tmax: 85 °C

Data Sheet NAS – Tilt Level Switch