Instructions

HD208 - 3 - V1.4

1 INTRODUCTION

The data loggers of the series HD208 are compact instruments for monitoring tem-

perature, relative humidity (RH) and dew point temperature. Usable in a wide spectrum

of applications, are available in various models:

• With 1 channel for temperature only (depending on the model, the sensor can be

internal, external fixed or external with cable).

• With 1 channel for temperature and relative humidity (combined probe fixed or

with cable).

• With 2 channels for temperature only (one external sensor with cable and one in-

ternal sensor).

• With 2 channels: one for temperature and relative humidity (combined probe

with cable) and one for temperature only (internal sensor).

All models can be supplied with or without LCD display.

The logging function is extremely versatile; logging can be started and stopped manu-

ally, by means of the front buttons, or the start and stop date and time of acqusition

can be programmed. The delayed start capability allows starting the logging with a

configurable delay time after pressing the button for the manual start.

For each quantity detected, two configurable alarm thresholds can alert the user if the

measure exceeds the configured parameters.

The instrument automatically generates, after logging, a PDF report with charts of

the variables collected and a CSV file with all measurements logged. The PDF and

CSV files can then be copied to the PC via the USB port, without any dedicated soft-

ware: the instrument is recognized as a USB flash drive.

The basic application software HD35AP-S supplied with the instrument allows the con-

figuration of the instrument, the real-time monitor of the measurements and the trans-

fer of the acquired data into a database. The connection to the PC does not require any

installation of USB drivers, thereby ensuring compatibility with all versions of the Win-

dows® operating system.

The HD35AP-CFR21 application software option allows the use of security features of

the recorded data and configuration of the instrument in response to FDA 21 CFR

part 11 recommendations.

The sensors are pre-calibrated and require no further calibration by the user. If neces-

sary, the user can perform a new calibration using the HD35AP-S application software.

All versions can be ACCREDIA certified, upon quote.