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Do you have questions about our products or services? Just give us a call: Or send your inquiry via e-mail: Ionometer for Air Ion MeasurementsIM806V3Precise measurements of air ions in indoor areas, function rooms, production areas and vehicles are becoming ever more vital. Due to their low electrical charge, air ions demand high technical requirements of the ionometer, which is the measurement device used to measure the ion concentration. The ionometer IM806V3 – the successor of the IM806 and IM806V3 – features two measurement channels for simultaneous measurement of air ions with positive and negative electrical charges. The advantages of the IM806V3:
Function The measuring system consists of two outer electrode tubes (1 & 2), each of which holds a centric and electrically insulated smaller electrode. A DC potential is applied between the outer and inner electrodes, thus generating a DC electric field between the electrodes. The fan (4) continuously draws air at a defined flow rate through both of the electrode tubes. The DC electric field exerts a force in the vicinity of the electrodes on the ions in the streaming airflow (Coulomb’s law) and deflects them to the inner electrodes. Since the polarities of the applied voltage differ in both electrodes, one electrode accelerates the positively charged ions and the other electrode the negatively charged ions to the inner electrode. The air flow velocity, the level of the deflection voltage and the geometry of the electrodes are dimensioned such that ions of a defined ion mobility reach the inner electrode. Air ions of lower ion mobility (medium and large ions) only partially reach the inner electrode. At very high ohmic resistances (R) (up to 1011 ohm), the charge current flowing during the charge neutralisation generates a measurable drop in voltage, which is boosted using suitable measuring amplifiers (3) to a measurable signal proportional to the air ion concentration and then digitalised in the pre-amplifier (6). The entire sequence of operations is controlled by microcontroller (5) which also handles the display, the storage logic, the analog outputs (7), the USB interfaces, the RS232 interface, the network interface and the climate sensors. The IM806V3 has an integrated barometric pressure sensor. A temperature and humidity sensor (T/H sens) is also optionally available for recording the air temperature and relative humidity. Application Applications of the ionometer for measuring the ion concentration in the air include:
Scope of Delivery
The measuring system consists of two outer electrode tubes (1 & 2), each of which holds a centric and electrically insulated smaller electrode. A DC potential is applied between the outer and inner electrodes, thus generating a DC electric field between the electrodes. The fan (4) continuously draws air at a defined flow rate through both of the electrode tubes. The DC electric field exerts a force in the vicinity of the electrodes on the ions in the streaming airflow (Coulomb’s law) and deflects them to the inner electrodes. Since the polarities of the applied voltage differ in both electrodes, one electrode accelerates the positively charged ions and the other electrode the negatively charged ions to the inner electrode. The air flow velocity, the level of the deflection voltage and the geometry of the electrodes are dimensioned such that ions of a defined ion mobility reach the inner electrode. Air ions of lower ion mobility (medium and large ions) only partially reach the inner electrode. At very high ohmic resistances (R) (up to 1011 ohm), the charge current flowing during the charge neutralisation generates a measurable drop in voltage, which is boosted using suitable measuring amplifiers (3) to a measurable signal proportional to the air ion concentration and then digitalised in the pre-amplifier (6). The entire sequence of operations is controlled by microcontroller (5) which also handles the display, the storage logic, the analog outputs (7), the USB interfaces, the RS232 interface, the network interface and the climate sensors. The IM806V3 has an integrated barometric pressure sensor. A temperature and humidity sensor (T/H sens) is also optionally available for recording the air temperature and relative humidity. Applications of the ionometer for measuring the ion concentration in the air include:
Further Information
Extension Tube
For direct measurement at sources and to avoid collision turbulence in air streams, the extension tube is optionally available. The extension tube unit is simply screwed onto the ionometer IM806V3. Via the screws, the extension tube is electrically connected to the housing potential. In addition, suction nozzles can also be installed on the extension tube for adjustment of the volume flow during measurement in external flows. The suction nozzles are calculated and manufactured based the customer's specifications. |
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