Thermohygrometer IVA-6N-D (with verification)
Thermohygrometer IVA-6N-D (with verification) It is an autonomous portable device and is designed to measure relative humidity and air temperature in residential, warehouse and industrial premises, as well as in the free atmosphere. This is a modification of the IVA-6N device with a channel for measuring atmospheric pressure. Application: for measuring microclimate parameters in museums, archives, libraries, pharmacies, testing laboratories, in clean production rooms of the pharmaceutical and electronics industries; for certification of workplaces in the Occupational Safety and Health Centers and the Hygiene and Epidemiology Centers; for air humidity control in the printing industry; to control product storage. The measuring transducer is installed on the display unit. When taking measurements, the device is held in one hand or placed on a horizontal surface. The device can be placed on the wall using a bracket (optional). When using an extension cable KU-1 0.8 m long (optional), the thermohygrometer converter can be used as a remote probe. The LCD display constantly displays the current temperature and relative humidity values. The update period for readings is 1 minute. When you press any button, the thermohygrometer goes into the “fast” measurement mode and the period for updating the readings indicator decreases to 1 s. After 30 seconds, the indicator update period returns to the value of 1 minute. The continuous operation time when using alkaline cells with a capacity of 2 Ah and turning on the “fast” measurement mode is no more than 1 hour per day for at least 1 year. The device can display the dew point (frost) temperature, recalculated from the measured values of relative humidity and temperature. At sub-zero temperatures, the thermo-hygrometer can display the relative humidity above water or above ice. The device remembers the minimum and maximum values of humidity and temperature, the time and date of these events. In low light conditions, the User can turn on the indicator backlight (the backlight turns off when the power button is pressed again or automatically after 20 s). Backlight brightness is adjustable during configuration thermohygrometer via USB port using the DataLogger program. The thermohygrometer has an audio and visual indication that the measured values of relative humidity and temperature exceed the established limits (using the DataLogger program). When operating the thermohygrometer in highly contaminated conditions, it is strongly recommended to use a protective cap made of porous fluoroplastic (optional) to protect against aerosols, dust and condensation. The use of a protective cap prevents degradation of metrological characteristics when the surface of the humidity sensor is contaminated. In addition, during the process of mechanical cleaning of the sensor from some contaminants, damage to the sensor may occur and, accordingly, additional costs for its replacement. Scope of delivery: Thermohygrometer IVA-6N-D – 1 pc.; microSD memory card with DataLogger software – 1 pc.; 2 AA batteries – 1 pc.; Operating manual – 1 pc.; Packaging – 1 pc. Manba: https://www.nv-lab.ru/catalog_info.php?ID=8712
- Parameter: Value
- Overall dimensions, mm, no more: 25 × 70 × 175
- Weight, g, no more: 400
- Measuring range:
- - relative humidity, %;
- - temperature, °C;
- - atmospheric pressure, hPa (mm Hg): 0…98;
- 0…+50 (with extension cable KU-1 -20…+50);
- 700…1100 (525…825)
- Limits of permissible basic absolute error in measuring relative humidity at 23°C, %, no more than:
- - in the range from 0 to 90%;
- - in the range from 90 to 98% (no more than 2 hours of stay): ±2;
- ±3
- Limits of permissible additional absolute error in measuring relative humidity when the temperature changes by 1°C, %, no more than: ±0.1
- Limits of permissible absolute error of temperature measurement, °C, no more than: ±0.2
- Limits of permissible absolute error in measuring atmospheric pressure, hPa (mm Hg), no more than: ±2 (±1.5)
- Time constant, min, no more:
- - relative humidity;
- - by temperature: 2;
- 5
- Supply voltage, V: 2…3 (2 AA elements)