PALM-SIZED TEMPERATURE/ HUMIDITY METER

HN-CH SERIES

The HN-CH series is accurate palm-sized temperature/ humidity meter with the measuring range of

0 to 100% RH by using a high performance and reliable humidity sensor.

Three types of sensors, sensor built-in type, probe type and separated type can be selected to meet

various applications requirement.

It also has the data logging function capable to store up to 8000 readings each of temperature and

humidity into memory, and communications function (RS232C or RS485) for various use such as

mobile measurement, desk-top and wall-mount.

FEATURES

    Measurement of relative humidity 0 to 100%RH by polymer capacitance type humidity sensor

    High accurate measurement in low humidity range less than 20%RH

    Improved repeatability and reliability by a new developed humidity sensor

    Design fitted into mobile measurement, desk-top and wall-mount

    Logging function of up to 8000 readings each of temperature and humidity

    Easy maintenance with complete interchangeable sensors

    Three types of sensors, sensor built-in type, probe type and separated type meet various applications requirement

GENERAL SPECIFICATIONS

Sensor:

Humidity --- High-polymer capacitance type humidity sensor

Temperature --- Semiconductor temperature sensor

Measuring range:

Humidity --- 0 to 100%RH (No dew condensation)

Temperature --- -10 to 50^๐C (Built-in type)

                          -40 to 80^๐C (Probe type, Separated type)

Accuracy rating:

Humidity --- +/-2%RH (0 to 90%RH at 25^๐C)

                   +/-3%RH (90 to 95%RH at 25^๐C)

Temperature --- +/-0.5^๐C (0 to 50^๐C)

                          +/-1^๐C (except other than the above shown)

Temperature coefficient:

+/-0.1%RH/^๐C (5 to 80^๐C) (Humidity sensor)

Response time:

Within 15 seconds (Humidity sensor)

(90% response, 25^๐C constant, under 0.1m/s ventilation)

Working temperature:

Main unit: -10 to 50^๐C

Sensor: Same as measuring range

Sensor interchangeability:

Interchangeable by plug-in

(For probe type and separated type, interchangeable including cable)

Number of logging data:

Temperature/ humidity; Up to 8000 data each (EEPROM)

Display:

Reflecting type LCD display

Battery life:

Approximately a half year (when using AA batteries in constant temperature and humidity, and using data logging as data logger while auto power-off function is on.)