| Specifications |
|
Embedded Microcontroller |
Custom one-chip LSI device |
|
Display Type | LCD with
green backlight |
|
Display Size | 2.05 x
1.5 in. (52 x 38mm) |
|
Parameters Measured |
pH, ORP, conductivity, TDS content, DO
content, salt content |
|
Measurement Range |
For pH: 0 to 14
For ORP: -1999 mV to
+1999 mV
For conductivity: up to 200 mS (microSiemens)
For TDS: up to 132,000 ppm
For DO: up to
20 mg/L
For salt: up to 12% by weight |
|
Measurement Accuracy |
For pH: ± (0.02 pH units + 2 digits)
For
ORP: ± (0.5% of reading + 2 digits)
For
conductivity: ± 2% of full-scale reading + 1
digit
For TDS: ± 2% of full-scale
reading + 1 digit
For temperature: ±
0.8°C/± 1.5°F
For DO: ± 0.4 mg/L in
solution
For oxygen: 0.1% for oxygen in
air
For salt: ±0.5% of value |
|
Measurement Resolution |
For pH: 0.01 unit
For ORP: 1 mV
For
conductivity: 0.1 uS @ 200 uS full-scale (f.s.),
0.001 mS @2 mS f.s., 0.01 mS @ 20 mS f.s.,
0.1mS @200 mS f.s.
For TDS: 0.1 ppm @200
ppm f.s., 1 ppm @2,000 ppm f.s., 10ppm @
20,000 ppm f.s., 100 ppm @ 100,000 ppm f.s.
For temperature: 0.1°F/0.1°C
For DO: 0.1
mg/L in solution
For oxygen: 0.1% in air
For salt: 0.01% of reading |
|
Temperature Compensation |
Automatic between 32°and 150°F (0°and 65°C)
when using optional ATC temperature probe
Manually settable between 32°and 212°F
(0°and 100°C)without ATC probe |
|
Storable/Recallable Readings |
Maximum, minimum |
|
Data Logging Sampling Time |
1 second to 9 hours |
|
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. Also salt and
altitude compensation (DO mode only) |
|
Operating Temperature |
32°to 122°F (0°to 50°C) |
|
Operating Relative Humidity |
0 to 85% |
|
Power Supply |
Six 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 |
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