Ø main features

l Advanced embedded microcontroller technology;

l High quality imported electrodes, effective alkalization method, and unique automatic stability judgment function ensure the stability and reliability of measurement

l Advanced surface mount technology and integrated design improve cost-effectiveness and reliability

l Exquisite structure, disc installation, all aluminum frame box, beautiful and sturdy, strong anti-interference ability

l Simultaneous display of multiple parameters, rich content, easy to understand

l Automatic or manual temperature compensation

l Two way isolation current output and two way alarm signal

l Large capacity historical data storage and historical curve query function

Ø Main Technical Performance

Ø Electronic unit

Display: 192 × 64 dot matrix LCD, can choose to display Chinese or English

Measurement range: (0.00~9.36) pNa, 0.01ug/L~23.0g/L, (-1000~+1000) mV

Resolution: 0.01pNa, 0.01 μ g/L, 0.1mV

Basic error: ± 0.02pNa

Stability: ± 0.02pNa/24h

Current output: (4-20) mA (two-way isolated output)

Output accuracy: ± 1% F.S

Output load resistance: 800 Ω

Power supply: AC (85-265) V, frequency (45-65) Hz

Power consumption: ≤ 10W

Insulation strength: power supply to ground 1500V/1 minute without arcing

Alarm output: Two channel alarm output, programmable alarm content

Communication: RS485 (optional)

Automatic data storage: can be set to automatically record historical data, historical events, and calibration records

Ø Whole machine

Measurement range: (1.00~8.00) pNa, 0.23ug/L~2300mg/L

Resolution: 0.01 pNa or 0.01 μ g/L

Basic error: ± 0.05pNa or ± 5 μ g/L, take the larger value (within ± 10 ℃ of the calibration temperature)

Response time (T90): 2min (25 ℃)

Temperature sensor: Pt1000

Temperature measurement range: (0.0~99.9) ℃

Temperature measurement accuracy: ± 0.5 ℃

Temperature resolution: 0.1 ℃

Temperature compensation range: (0.1-60.0) ℃ (manual or automatic)

Calibration methods: sample calibration, standard solution calibration

Dimensions: 450mm x 690mm x 190mm (width x height x depth)

Hole size: 410mm × 645mm

Weight: 20kg

Ø sample requirements

Temperature: (5-50) ℃

Pressure: (50-300) kPa

Flow rate: (6-20) L/h

The allowed solid content of the water sample is ≤ 5 microns (no gelatinous substances or oil are allowed)

Ø environmental condition

Environmental temperature: (5-45) ℃

Environmental humidity: ≤ 90% RH (no condensation)

Storage and transportation temperature: (-20~55) ℃ (excluding electrodes, electrodes should be above 0 ℃)