Peak Instruments S-621 Precise pH/DO Meter (-2,00~18,00pH)

pH

Measuring range: (-2.00 ~ 18.00) pH

Resolution: 0.1/0.01pH

Accuracy: ±0.02pH

Input current: ≤2×10^-12 A

Input impedance: ≥1×10^12 Ω

Stability: ±0.01pH/3h

Temp Compensation range: (0 ~ 100)℃(auto or manual)

mV

Measuring range: -1999.9mV ~ 0 ~ 1999.9mV

Resolution: 1mV

Accuracy: ±0.1% FS

Dissolved Oxygen

Measuring range: (0 ~ 20.00) mg/L(ppm) (0 ~ 200.0)%

Resolution: 0.1/0.01mg/L(ppm) 1/0.1%

Accuracy: ±0.40 mg/L

Response time: ≤30s (25℃, 90% response）

Residual current: ≤0.1mg/L

Temp compensation range: (0 ~ 45)℃ (automatic)

Salinity compensation range: (0 ~ 45) ppt (automatic)

Air pressure compensation: (80 ~ 105) kPa (automatic)

Electrode type: Polarographic

Temperature

Measuring range: 0℃~ 100℃

Resolution: 0.1℃

Accuracy: 5~ 60℃: ±0.4℃ Others: ±0.8℃

Other Parameters

Data storage: 500 groups

Power: DC12V/1A

Communication interfaces: Bluetooth, USB

Dimensions & Weight: 270×170×70mm/600g

Working Conditions

Ambient temperature: 5 ~ 35℃

Ambient humidity: ≤85%

IP grade: IP54

Standard Configuration

1. S-621 pH/DO meter: 1 unit

2. Composite pH electrode: 1 pc

3. Rotary electrode holder: 1 pc

5. pH calibration buffer: 1 set

5. Composite DO Electrode: 1 pc

6. DO electrode cap: 3 pcs

7. DO electrode electrolyte (30mL): 1 bottle

8. 12V power adapter: 1 pc

9. User manual in USB: 1 copy

Datasheet