The fluid flows from bottom to top through the meter tube of the flow meter. The float is lifted until an annular gap between the meter ring and the cone-shaped float is produced which corresponds to the flow. The forces acting on the float are in equilibrium.
The new KOBOLD flowmeter Type MIK is used for measuring and monitoring the smaller and medium-sized flows of conductivity liquids in pipes. The device operates according to the electromagnetic measurement principle. According to Faraday’s Law of magnetic induction, a voltage is induced in a conductor moving through a magnetic field. The electrically conductive measuring agent acts as the moved conductor. The voltage induced in the measuring agent is proportional to the flow velocity and is, therefore, a value for the volumetric flow. The flowing media must have a minimum conductivity. The induced voltage is picked up by two sensing electrodes that are in contact with the measuring agent and sent to the measuring amplifier. The flow rate will be calculated based on the cross-sectional area of the pipe. The measurement is not depending on the process liquid and its material properties such as density, viscosity and temperature. The device may be equipped with a switch, frequency or analogue output. Moreover, there is a compact electronic system to be selected from, which contains a switch and an analogue output. The device series is completed by optionally obtainable dosing and counter electronic system. The counter electronics system shows the current flow rate on the first line of the display and shows the partial or overall volume on the second line. A dosing electronic system controls simple filling duties and also measures the flow rate, overall volume and filling volume. The analogue output and two relay outputs can be utilised for the further processing of signals.
Media
Applications
Flow monitoring, Flow measuring, dosing and counting for:
Kobold bypass level indicators are used for continuous measurement, display and monitoring of liquid levels. The bypass tube is attached onto the side wall of the vessel. According to the law of communicating tubes the level in the bypass tube equals the level in the vessel. A float with embedded circular magnets in the bypass tube follows the liquid level and transfers it in a non-contacting manner to a display fitted outside the tube or to a monitoring device.
The operation of the model KAL-.... electronic flow monitor is based on the calorimetric principle. The end face of the sensor is heated to a few degrees above the temperature of the flow medium. When the medium flows, the heat generated in the sensor is transferred to the medium, ie, the sensor is cooled. The cooling procedure is an accurate measure of the flow velocity. The sensor signal is compared with the reference data stored in a microcontroller. An alarm signal and/or an analogue signal (4-20 mA) that is proportional to the flow velocity is output if the actual flow velocity devices deviates from the desired flow velocity. The microcontroller allows the flow indicator to be easily calibrated and the temperature to be compensated.
The model KAL-... electronic flow monitor continuously monitors water-based liquids. It is suited for securely monitoring flows with minimum pressure loss. Sensitivity to soiling is significantly reduced by means of a single-part sensor.
Function of the unit The electronic flow monitor model KAL-D...continuosly monitors flowing media. It finds service in all applications where flow currents with minimum pressure loss are to be accurately monitored. the one-part design of measuring probe considerably reduces dirt sensitivity Operating principle The electronic flow monitor model KAL-D....works according to the calorimetric principle. The sensor tip is heated to a few degrees above the temperature of the flowing medium. When the medium flows, heat generated in the probe is dissipated by the medium. In other words, the probe is cooled down. This coding sequence is a precise measure of the flow velocity. The sensor signal is compared with reference data stored in a microcontroller. An alarm signal is generated when the desired flow velocity is reached. Simple calibration and optimal temperature compensaiotion is achieved with a micro-controller. Temperature compensation Temperature compensation in the KOBOLD flow monitor is achieved by a microcontroller. All information necessary for temperature compensation is programmed at the factory. The devices can easily be adjusted by the customer to the process conditions. Due to the adaptation of the sensors to the operating data the sensors switch absolutley consistently even with large temperature gradient.
The flow meter-monitor PPS is a flow monitor for nominal pipe sizes greater than NW 32. Fluid flow (regardless of direction) deflects the paddle and, via an eccentric, moves a magnet holder fitted to a permanent magnet.
The magnet actuates non-contacting a dry-reed switch embedded in the switching tube. The paddle switch is available with N/O contact or N/C contact. The inlet and outlet pipe section should be approximately three times the nominal size of the piping. The flow monitor can be fitted in a standard T piece or reducing pipe. Ideally the flow monitor should be fitted in horizontal piping.
Compact geared potentiometers - IP52 4-20 mA output
The KOBOLD flow meter KFR operates on the proven suspended float system, that is, the installation position is vertical and rthe flow is from bottom to top. The instrument is constructed as a single unit, that is, it has an acrylic housing with removable, connections made of PVC brass or stainless steel. The fliow meter is thus very reasonable priced.
The KOBOLD plastic flow meters of model KSM are based on the float principle with the float moving freely without friction in the measuring tube. The indication point is at the greatest diameter of the float. The floats are supplied with integrated magnets for operation with a bistable reed contact.
The KOBOLD flow meter and switches model VKG have a spring-loaded float The contact is embedded within a height-adjustable plastic housing to prevent damage to the contacts by mechanical action or aggressive atmospheres.
Potentiometer output Wire-actuated encoder with analog output, potentiometric, current source or voltage output, with a measuring length of up to 6000 mm. Easy adjustment of the output signal to the actual measuring length via an integrated gear mechanism.
Shaft Encoders: Accessory Measuring wheel
The fluid flows from bottom to top through the meter tube of the flowmeter. The float is lifted until an annular gap between the meter ring and the cone-shaped float is produced which corresponds to the flow. The forces acting on the float are in equilibrium. The forces that are mainly acting on the float comprise buoyancy according to the principle of Archimedes, the flow force of the medium and the weight force. Each position of the float corresponds to a flow value measured during calibration, which is transferred to a scale. The BGN variable area flowmeter consists of a meter tube with connections, a meter ring, and a conical float. By means of a magnet, the position of the float is transferred to an encapsulated follow magnet, which has been fitted to a pointer axle. The position of a second annular follow magnet fitted on the pointer axle is transferred to the scale by means of the pointer.
The pressure test pump LR-Cal LPP 700 is used to generate pressure for checking, adjusting and calibrating mechanical and electronic pressure measuring instruments by comparative measurements. These pressure tests may be carried out in laboratories, workshop or on site at the measuring point. If the instrument to be tested and a sufficiently accurate reference measuring instrument are connected up to the test pump, the same pressure is applied to the two measuring instruments when the pressure test pump LR-Cal LPP 700 is operated. By comparing the two measure valuses at random pressure values, the accuracy can be verified or the instrument under test can be adjusted. Despite its compact dimensions, the pressure test pump LR-Cal LPP 700 is easy to operate and allows for exact generation of the required test pressures The LR-Cal LPP 700 is fitted with a fine adjustment valve for a precise adjustment of pressures. The reference instrument is screwd directly on the top of the pump and the unit under test is connected by means of the connection tube incorporating an adapter 1/4" BSP female thread (freely rotating), contained in the scope of delivery.
Individually usable for third-party handwheels Scale 66.8mm, reinforced plastic housing either dust-tight, oil filled or waterproof, scale and pointer
Current/Voltage output Wire-actuated encoder with analog output, potentiometric, current source or voltage output, with a measuring length of up to 6000 mm. Easy adjustment of the output signal to the actual measuring length via an integrated gear mechanism.
The TM Series Mass Flow Meter utilizes the Coriolis principle of operation to measure mass flow. Density and temperature are simultaneously monitored and volumetric flow is additionally calculated with these parameters. The TM Series is available with a direct mounted transmitter or in a remote mounted configuration. The TM Series can be used to meter nearly all liquid or gaseous media. Available in a variety of end connections, the TM can be used in many applications. The TM Series is also used for precise dosing applications.
Geared Potentiometers - heavy duty ratios 0.25 to 550:1 4-20mA output
Geared Potentiometers - heavy duty ratios 0.25 to 550:1 4-20 mA output with three CAM switches
General purpose top-entry constant current accelerometer with isolated AC output. Made from robust stainless steel throughout for long term vibration analysis in harsh environments. Sealed to IP67 and includes 2-pin C5015 military style connector. Available with a wide range of mountings.