User's Guide Humidity + Temperature + Pressure Datalogger Model RHT50
Introduction Congratulations on your purchase of the Relative Humidity / Temperature / Pressure Datalogger; this datalogger measures and stores up to 10,000 readings. The user can easily configure the logging rate, high/low alarm and start-mode. It also downloads the stored data by plugging the module into a PC USB port and running the supplied PC software. Data can then be graphed, printed and exported to other applications. The data logger is supplied with a 3.6V ½ ‘AA’ lithium battery.
Operation INSTALLING THE GRAPHING SOFTWARE Install the supplied WindowsTM PC Datalogger Software by placing the supplied program disk in the PC’s CD-ROM drive. If the installation program does not automatically open and provide on-screen prompts, open and browse the CD-ROM drive, then find and double-click on the SETUP.EXE file included on the program disk. Follow the on-screen prompts to complete the installation.
LED STATUS GUIDE LEDs Record Alarm Green Meaning No LED Logging not started No LED Logging stopped * No LED Battery discharged ** Green flash (single): Logging indication ***** Green flashes (five) Reset Green flashes (six) Start Logging Red double flash every 30 sec.
Specifications Range Relative Humidity Temperature Accuracy 0 to 20 and 80 to 100% ±5.0% 20 to 80% ±3.5% -40 to 32oF and 104oF to 158oF ±3.6oF/±2oC -40 to 0oC and +40 to +70oC 32oF to104oF/0oC to +40oC Pressure ±1.8oF/±1oC Accuracy: ±0.25%FSO @ (25oC) Repeatability: ±0.25%Max+±0.3%FSO) Linearity/Hysteresis: ±0.24%FSO Temperature coefficient: ±0.1%FSO 950 to 1050hPa Notes: FSO: Full Scale Output 1psi = 68.947 mbar = 0.068947 bar 1 psi = 6894.7 Pa = 68.947 hPa = 6.8947 kPa Resolution 0.1%RH, 0.
Battery Replacement It is highly recommended that the battery be replaced every 12 months, or prior to logging critical data. The RHT50 does not lose its stored readings when the battery weakens or when the battery is replaced; the data logging process will however be stopped and cannot be re-started until the battery has been replaced and the logged data has been downloaded to PC. Use only a 3.6V ½ ‘AA’ lithium battery. Before replacing the battery, remove the datalogger from the PC.
Warranty (English) EXTECH INSTRUMENTS CORPORATION (A FLIR COMPANY) warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information.
Garantía (Español) EXTECH INSTRUMENTS CORPORATION (UNA EMPRESA FLIR) garantiza este instrumento para estar libre de defectos en partes o mano de obra durante un año a partir de la fecha de embarque (se aplica una garantía limitada a seis meses para los cables y sensores). Si fuera necesario regresar el instrumento para servicio durante o después del periodo de garantía, llame al Departamento de Servicio a Clientes al teléfono (781) 890-7440 ext.
