User Manual

SD800-EN v2.7 08/13
6
RS232 Interface
For streaming of data to a PC via the RS232 Output jack, the optional 407001-USB kit (RS232 to USB
cable and driver CD) along with the 407001 software (available free at www.extech.com) are required.
Battery Warning, Installation and Replacement
1. When the AC adaptor is not connected and the low battery icon appears in the display,
the batteries are weak and should be replaced. To replace or install batteries, remove the
Philips head screw that secures the rear battery cover and lift off the cover.
2. Replace the six AAA batteries (use alkaline heavy duty type), observing polarity.
3. Replace and secure the cover.
Battery Safety Reminders
 Please dispose of batteries responsibly; always observe local, state, and federal regulations
with regard to battery disposal.
 Never dispose of batteries in a fire. Batteries may explode or leak.
 Never mix battery types. Always install new batteries of the same type.
Specifications
Display 2.4 x 2.0” (60 x 50 mm) LCD
Measurement sensors Temperature: Internal sensor
Relative Humidity: Precision capacitance type
CO
2
: NDIR (Volume)
CO
2
Response Time <2 min to 63% of final reading typical
Memory Card SD memory card, 1 GB to 16 GB.
Datalogger Sampling Time 5/10/30/60/120/300/600 seconds or Auto.
Temperature Compensation Automatic
Display update rate Approx. 1 second
Data Output RS 232
Operating Temperature 32 to 122°F (0 to 50°C)
Operating Humidity Less than 90% RH
Power Supply 9V AC adaptor.
Six (6) AAA (UM4) 1.5 V batteries for clock backup
Weight Meter: 0.53lbs. (240 g). Probe 0.35lb (158g)
Dimension Meter: 5.2 x 3.1 x 1.3” (132 x 80 x 32mm)
Probe: 5.2 x 1.5 x 1.3” (132 x 38 x 32mm)
Range
Resolution
Accuracy (of reading)
Temperature
0.0 to 50.0 °C
0.1°C
± 0.8°C
32.0 to 122.0°F
0.1°F
± 1.5°F
Relative Humidity
10 to 70%
0.1%
± 4% RH
70 to 90%
± (4% of reading + 1% RH)
CO
2
≤1000ppm
1ppm
± 40ppm
>1000 to ≤3000ppm:
± 5% of reading
>3000ppm
±250ppm typical