DO700-en-GB_v2.3 3/15
21
Specifications
pH Specifications
Measuring range
-2.00 to 19.99 pH
Resolution
0.1/0.01 pH
Accuracy
Meter only: ±0.01pH; with probe: ±0.02pH
Input current
≤
2×10
-12
A
Input impedance
≥
1×10
12
Ω
Stability
±0.01 pH/3h
Temp. Compensation range
0 to 100
o
C (32 to 212
o
F); Automatic (ATC)
mV Specifications
Measuring range (mV/E
H
)
-1999 mV to 0 to 1999mV
Resolution
1mV
Accuracy
Meter: ±0.1% FS
Conductivity Specifications
Conductivity measuring ranges
0.00 to 19.99 µS/cm
20.0 to 199.9 µS/cm
200 to 1999 µS/cm
2.00 19.99 mS/cm
20.0 to 199.9 mS/cm
Salinity measurement range
0 to 100 ppt
Resistivity
0 to 100 Mohms
Resolution
0.01/0.1/1 µS/cm and 0.01/0.1mS/cm
Accuracy
Meter only: ±1% F.S.; with probe: ±2% F.S.
Electrode constant
0.1 / 1 / 10 cm
-1
Reference temperatures
25, 20, and 18
o
C (77, 68, and 64
o
F)
Temp. Compensation range
0 to 50
o
C (32 to 122
o
F); Automatic (ATC)
TDS Specifications
TDS measurement range
0 to 100 g/L (TDS: Total Dissolved Solids)
TDS conversion method
*see Appendix E: TDS conversion method
Dissolved Oxygen
Measuring range
(0 to 40.00) mg/L (ppm) (0 to 200.0) %
Resolution
0.1/0.01 mg/L (ppm) 1/0.1 %
Accuracy
Meter: ±0.10 mg/L; with electrode: ±0.40 mg/L
Response time
≤
30 s (25
o
C, 90% response)
Residual current
≤
0.1 mg/L
Temp. compensation range
0 to 45
o
C (32 to 112
o
F); Automatic (ATC)
Salinity compensation range
0 to 45 ppt; Automatic
Barometric pressure
66 to 200 kPa (Manual compensation)
Electrode type
Polarogram type
Other Technical Parameters
Data storage
400 data groups
Storage content
Data serial number, measurement, & unit of measure
Power
Two ‘AA’ batteries (1.5V)
Size and weight
Meter: 65 × 120 × 31mm (2.6 x 4.7 x 1.2”) / 180g (6.3 oz) Case:
360 x 270 x 76mm (14.1 x 10.6 x 3”) / 1.6kg (3.4 lbs)
Quality/Safety certification
ISO9001, CE and CMC
Ambient Conditions
Environment temperature
5 to 35
o
C (41 to 95
o
F)
Environmental humidity
≤
85%
IP rating
IP57 Dustproof and waterproof
