PCE-313 A hydrometer
internal memory, RS-232 interface and software (in English)

The PCE-313 A hydrometer is for professional use in taking technical measurements in meteorology. The hydrometer measures both temperature and relative humidity.
The device's internal data memory has a capacity to store 16,000 readings, allowing the flexibility to choose storage intervals or to set the device to act as a data logger for longer durations. The hydrometer can be programmed or adjusted via a computer allowing it to be set to take measurements in situ over an extended period of time.
After readings have been taken, this data can be tranferred from the hydrometer's internal memory to a computer allowing it to be analysed or exported to another software package such as Excel or Access.

(PCE-313 A hydrometer interface)
Temperature is measured using a Thermistor, a polymer based humidity sensor by capacitance. The sensor connects to the hydrometer by way of a 1.2m long spiral cable.

View or print the user's manual

The PCE-313 A hydrometer comes with a sintered hood that can be used in extremely humid conditions. This prevents significant oscillations that might normally occur whle taking measurements in such extreme conditions. This hood can be removed when the device needs to be cleaned, tested or recalibrated.
The image to the right shows the hydrometer with the optional sintered hood.

There is an optional piece of calibration equipment available for the PCE-313 A hydrometer.
Humidity sensors become less accurate over time, and this is true with this model. To ensure that values are always accurate, the hydrometer can be recalibrated using the calibration standards.
These humidity standards have a value of 33% and 75% of relative humidity.
This calibration can be done by people with limited experience using a hydrometer.

Software
The software is compatible with Windows 95®, 98, 2000, XP Professional or NT

Contents
PCE-313 A hydrometer, combined temperature / humidity sensor with 1.2m spiral cable, Windows compatible software, RS-232 interface, carrying case, battery and user's manual 

Optional accessories
- Calibration equipment (33% and 75% of relative humidity) to recalibrate the device
- ISO 9000 calibration certificate (the hydrometer will be calibrated to meet DIN ISO standards, which
  will include the calibration protocol and details of the company requesting the recalibration)

Below you will find an overview of the different product groups of measuring instruments