General Tools and Instruments DPH230SD - Manual (Page 13)

13
SPECIFICATIONS
Embedded microcontroller Custom one-chip LSI device
Display type Liquid-crystal with green backlight
Display size 2.05 x 1.5 in. (52 x 38mm)
Parameters measured pH, ORP
Measurement range 0 to 14 for pH; -1999 mV to +1999 mV for ORP
Measurement accuracy ± (0.02 pH units + 2 digits) for pH;
± (0.5% of reading + 2 digits) for ORP
Measurement resolution 0.01 unit for pH; 1 mV for ORP
Temperature compensation Automatic between 32º and 150ºF (0º and 65ºC) when using
optional ATC temperature probe; manually settable between
32º and 212ºF (0º and 100ºC) without ATC probe
Storable/recallable readings Maximum, minimum
Datalogging sampling time Settable between 1 second and 8 hours, 59 minutes,
59 seconds (in automatic datalogging mode)
SD card capacity 1 GB to 16 GB
Settable parameters Date, time, auto power off, beep sound, sampling time,
decimal point or comma decimal division, temperature unit,
compensation temperature
Operating temperature 32º to 122ºF (0º to 50ºC)
Operating relative humidity 0 to 85%
Power source 6 Alkaline “AA” batteries or optional
9-VDC AC adapter
Power consumption 14 mADC (normal operation, with backlight off and SD card
not saving data); 37 mADC with backlight on and card saving
data; 49 mADC with backlight on and card saving data
Dimensions 6.97 x 2.68 x 1.77 in. (177 x 68 x 45mm)
Weight 1.08 lb. (489g)