Swema 3000mdH+ is a multifunctional micromanometer and logger with anemometers, temperature and humidity probes, leakage testers
and modems. It is designed for accurate ventilation testing, adjustment and balancing (TAB), aswell as for industry and research applications.
The instrument has a built-in high range differential pressure sensor and a zeroing valve. It includes a number of specific measuring programs complying with EN 16211, 12599 or ISO 7730. Air velocity is measured with a pitot-static tube. Air flow is displayed from air velocities across an area or measured on a valve with k-factor. The included barometer and thermocouple automatically compensate the velocity and flow for air density.
proportional balancing of ventilation systems using modems.
Differential pressure: -10.000…10.000Pa (micromanometer mH+)
Resolution: 0,1 or 1 Pa (selectable)
Air velocity: approx. 2...129m/s, 390…9999fpm (calculated)
Barometer: 600...1200 hPa (integrated)
Temperature: -270...1372 °C, -450...2500 °F (standard curve, Thermo couple connector type K)
Thread sensor:-40...400°C, -40...750 °F (inluded, class 1, thermo couple type K)
Measurement uncertainty at 23°C ±5°C:
Differential pressure: ±1% read value, minimum ±0,4 Pa (after zeroing)
Barometer: ±2,5 hPa
Temperature Thermo couple type K input: ±0,3°C at -10...70°C, see sensor
Uncertainty according to GUM (JCGM 100ː2008) using a coverage factor of 2, which for a normal distribution corresponds to a probability of 95%. It is important to correct the measurement values with the corrections stated in the calibration certificate to obtain the above uncertainties.
(Non condensing, non moist air, <80%RH, non aggressive gases).
Time constant: 0,25 / 0,5 / 1 / 2 / 5 / 10 / 15 / 30 / 60 / 120 s (selectable)
Calculated units: l/s, m3/h, cfm, m/s, fpm
Valve:Built-in valve for automatic zeroing the differential pressure sensor. No need to disconnect tube. Can be deactivated for faster measurements.
Memory: 1.300 protocols or 10.500 logged rows of 3 measurement values
Time and date for each measurement
0...+50°C, non condensing, non moist air, <80%RH, non aggressive gases
Battery: 2 AA batteries, standard or chargeable
Battery time: Up to 150h (24h with display light)
Interface: USB to PC for memory and measurement direct output, RS232 to modem
Size: 212x82x36 mm
IP rating: IP50 (protects against dust)
For the external sensor and the built-in manometer there is a wide array of measuring programs in Swema 3000. For example Comfort (CO) for the draught sensor, air flow in duct (APF) for anemometer and differential pressure sensors, logging (LOG) and averge (AP) for all sensors.
Air flow / velocity: The built-in manometer (m) that measures differential pressure together with a pitot static tube the air velocity and air flow in a ventilation duct is calculated. (Measuring program APF according to EN 16211 method ID 1, ID 3) At a supply or exhaust valve measurement with k-factor and differential pressure can be used. (EN 16211 method ST 1, ET 1).
Humidity: External sensors that measure relative humidity (%RH) and temperature. Swema 3000 presents also dewpoint (°C) and water content (g water / kg dry air).
Barometer and thermocouple connector with thermocouple for automatic air density compenation (d).
Select Real or Standard air flow.
Since Swema 3000md contains a barometer and differential pressure sensor it is recommended to calibrate every year.
External sensors are indivually calibrated and need not to be calibrated together with Swema 3000.
Swema 3000 basic unit (764200 ) with no built-in sensor.
Swema 3000md (764202) same model as Swema 3000mdH+, but differential pressure sensor has lower range. -300...1500 Pa.
Instrument, 2 AA standard batteries, two holders for SWA 31, 1 m wire thermocouple type K, USB cable, calibration certificate.