User's Guide Pressure Meter SD Card real-time datalogger Model SDL700
Introduction Congratulations on your purchase of the Extech SDL700 Pressure Meter, an SD Logger Series meter. This meter displays and stores pressure readings from optional pressure sensors in the range of 30, 150, 300 psi. Supported measurement units are bar, psi, Kg/cm2, mm Hg, inch Hg, meters of H2O, inches of H2O, atmosphere, hPA, and kPA. Logged data readings are stored on an SD card for transfer to a PC. In addition, an RS232 port allows data streaming to a PC.
Getting Started Power ON-OFF • Power the meter by pressing and holding the power button • • Press and hold the power button for at least 1.5 seconds to power OFF the meter. This meter is powered by six (6) 1.5VDC ‘AA’ batteries or by optional AC adaptor. If the meter will not switch ON please check that fresh batteries are installed in the rear battery compartment or, in the case of the AC adaptor, check that the adaptor is connected correctly to the meter and to an AC source. for at least 1.5 seconds.
Setup Mode Basic settings at a glance To view the current configuration of the meter with regard to time, date, and datalogging sampling rate press the SET button momentarily. The meter will now display the configuration in quick succession. If the information is missed on the first try, simply press the SET button again until all of the information is noted. Accessing the Setup mode 1. 2. 3. 4. 5. Press and hold the SET button for at least 1.5 seconds to access the Setup menu.
Enabling/Disabling the Auto Power OFF Feature 1. 2. 3. 4. Access the PoFF parameter. Use the arrow buttons to select ON or OFF. With the Auto Power OFF feature enabled, the meter will automatically switch OFF after 10 minutes of inactivity. Press ENTER to confirm setting. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or simply wait 7 seconds for the meter to automatically switch to the normal operating mode). Set the Beeper Sound ON or OFF 1. 2. 3. 4.
Max-Min Reading Record For a given measurement session, this meter can record the highest (MAX) and the lowest (MIN) readings for later recall. 1. 2. 3. 4. 5. Press the MAX-MIN button momentarily to access this mode of operation (REC icon appears) The meter is now recording the MAX and MIN readings. Press the MAX-MIN button again to view the current MAX readings (MAX icon appears).
Automatic Datalogging In automatic datalogging mode the meter takes and stores a reading at a user-specified sampling rate onto an SD memory card. The meter defaults to a sampling rate of two seconds. To change the sampling rate, refer to the Setup Mode section (the sampling rate cannot be ‘0’ for automatic datalogging): 1. Select the sampling rate in the Setup Mode to a value other than zero. 2. Press and hold the LOG button for at least 1.5 seconds.
Spreadsheet data example RS-232/USB PC Interface The optional 407001A software kit (software and cable) allows streaming of data to a PC via the RS232 Output jack. AC Power Adaptor This meter is normally powered by six (6) 1.5V ‘AA’ batteries. An optional 9V power adaptor is available. When the adaptor is used, the meter is permanently powered and the power button will be disabled. Battery Replacement and Disposal When the low battery icon appears on the LCD, the batteries must be replaced.
Specifications General Specifications Display Backlit LCD; LCD size: 52 x 38mm (2 x 1.5”) Status indicators Over-range audible beep and low battery display icon Sensor types Accepts pressure sensors with 100mV full scale Available sensors: 30, 150 and 300psi Measurement Units Bar, psi, Kg/cm2, hPA, mm Hg, inch Hg, meters H2O, kPA, inches H2O, ATP Accuracy (Meter) ± (0.5% reading + 1d) 5°C) Datalogger Sampling Rate AUTO LOGGING: From 1 second up to 9 hours.
Transducer Range and Resolution Table Sensor type PT30 Max. Range bar 2 Psi Kg/cm2 PT150 Max. Resolution Range 0.002 10 PT300 Max. Resolution 0.01 Range Resolution 20 0.02 29 0.02 145 0.2 290 0.2 2.040 0.002 10.19 0.01 20.40 0.02 mm Hg 1500 2 7500 10 15000 20 inch Hg 59.05 0.05 295.2 0.2 590.5 0.5 meter H20 20.40 0.02 101.9 0.1 204.0 0.2 inch H20 802 1 4010 5 8020 10 Atmosphere 1.974 0.002 9.87 0.01 19.74 0.
