COMMETER
Thermometer Hygrometer Barometer

Barometer Image

Thermometers, hygrometers, barometers are designed for measurement of temperature, relative humidity, dew-point, atmospheric pressure and atmospheric pressure tendency.

Advantages:

included traceable calibration certificate
dual line LCD display with special symbols
dew-point reading
barometric pressure tendency reading for last three hours
adjustable dual alarm with audio indication for each channel
memory of minimum and maximum values
function Hold - manual storing of actual values for later displaying

COMMON TECHNICAL PARAMETERS
Operating temperature range:	-10 to +60°C
Temperature sensor:	RTD Ni1000/6180ppm
Accuracy of temperature measurement with built-in sensor:	±0.4°C
Accuracy of temperature input without probes - C3631 instrument:	±0.2°C from -50 to +100°C, ±0.2% from reading from 100 to 250°C
Accuracy of air humidity measurement:	±2.5%RH from 5 to 95% at 23°C, resolution 0.1%
Accuracy of dew point measurement: - see details in graph	1.5 °C at ambient T < 25°C and RH>30% range -40 to +60 °C, range -60 to +80 °C models C3121, C4141
Accuracy of air-pressure measurement:	±2hPa at 23°C, resolution 0.1hPa
Barometric pressure tendency reading:	in hPa - for last three hours
Power:	battery 9V
Battery life:	4 months typically (barometer 2 months typically)
Warranty:	two years


Type	Measuring range	Manual in pdf format
C3120 - Thermometer - hygrometer - simultaneous reading of temperature and relative humidity, dew point temperature reading selectable, built-in sensors.	temperature -10 to +60° relative humidity 5 to 95% dew-point from 30 to 90%RH
C3121 - Thermometer - hygrometer - simultaneous reading of temperature and relative humidity, dew point temperature reading selectable, external temperature-humidity probe with 1meter cable. Cable lengths 2 and 4 meters available optionally. Probe diameter is 18mm, length 135mm.	temperature -30 to +105°C* relative humidity 0 to 100% dew-point from 30 to 90%RH
C3631 - Thermometer - hygrometer - simultaneous reading of temperature and air relative humidity, dew point temperature reading selectable, built-in sensors. A Cinch connector for connection of an external RTD Ni1000 temperature probe. Surface, pointed-tip, insertion and other probes with Cinch connector are available. Indication of temperature difference of external probe and dew point. Audio and visual alarm for the temperature difference e.g. for monitoring of condensation or mould creation.	air temperature -10 to 60° probe temperature -50 to 250° relative humidity 5 až 95% dew-point from 30 to 90%RH
C3633 - Thermometer - hygrometer - simultaneous reading of temperature and air relative humidity, dew-point temperature reading selectable, built-in sensors. Surface temperature probe with attaching magnets on the instrument bottom. Indication of temperature difference of surface probe and dew point. Audio and visual alarm for indication of the temperature difference.	air temperature -10 to 60° surface temperature -10 to 60° relative humidity 5 to 95% dew-point from 30 to 90%RH Magnetic surface probe for surface coating application!
C4130 - Thermometer - hygrometer - barometer - simultaneous reading of temperature and air relative humidity, dew point temperature and air pressure reading selectable, built-in sensors, barometric pressure tendency for last 3 hours.	temperature -10 to 60° relative humidity 5 to 95% dew-point from 30 to 90%RH atmospheric pressure 800-1100hPa
C4141 - Thermometer - hygrometer - barometer with external air temperature-humidity probe on a 1 meter cable. Cable lengths 2 and 4 meters available optionally. Probe diameter is 18mm, length 135mm. Built-in indoor temperature and air pressure sensors. Dew point temperature reading, barometric pressure tendency reading for last 3 hours.	external temperature -30 to +105* internal temperature -10 to +60°C relative humidity 0 to 100% dew-point from 30 to 90%RH atmospheric pressure 800-1100hPa

Included accessories

Traceable calibration certificate from the manufacturer, instruction manual. Calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
Example of calibration certificate.

Included is also plastic case, battery 9V. Thermometer, hygrometer, barometer is equipped with connector for external ac/dc adapter.

OPTIONAL ACCESSORIES
	A1515	adapter 230V-50Hz/12Vdc. 9V battery should be replaced with NiMH accumulator 9V.
	A3400	NiMH accumulator 9V
	F5200B	sensor cover with filter from stainless steel mesh for thermo-hygrometer C3121, C4141, filtering ability 0.025mm
	F0000	sensor cover from sintered bronze for thermo-hygrometer C3121, C4141, filtering ability 0.025mm
	PP4	flat circular flange - for mounting of external probe of thermo-hygrometer C3121, C4141
	PP90	right-angled stain-less steel flange for mounting of external probe of thermo-hygrometer C3121, C4141
	F8000	Solar radation shield for C3121, C4141
		accessory for calibration and adjustment of hygrometer by the user

Declaration of Conformity for all Cxxxx instruments in pdf

COMMETER Thermometer Hygrometer Barometer

Advantages:

Included accessories

COMMETER
Thermometer Hygrometer Barometer