Hach-Lange 1200-S sc - Manual (Page 5)

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Section 1 Specifications
1.1 Technical data on the 1200-S sc - pH / ORP sensor
Specifications are subject to change without notice.
Materials Stainless steel metal housing
Enclosure rating IP 68; stainless steel metal housing
pH measuring range 0 pH ... 14 pH
ORP measuring range –1,500 ... 1,500 mV
Temp. measuring range –5 °C ... 50 °C
Storage temperature
Sensor and controller
–20 °C ... 60 °C; 95 % relative humidity, non-condensing
pH / ORP response time < 15 s; T90
Temp. response time < 2 min; T90
pH measuring accuracy ± 0.02 pH
ORP measuring accuracy ± 1.2 mV
Temp. measuring accuracy ± 0.2 °C
Reproducibility ± 0.5 % of the end value of the measuring range
Sensitivity ± 0.5 % of the end value of the measuring range
Calibration, pH
One or two point, standard buffer solution (automatic),
One or two point, comparative measurement
Calibration, ORP One point, comparative measurement
Calibration, temp One point, comparative measurement
Max. immersion depth / pressure
for the sensor
20 m / 2 bar over-pressure
Maximum flow speed 4 m/s
Sensor interface MODBUS
Sensor cable 10 m, hard wired, polyurethane
Sensor weight <1 kg
Sensor dimensions (Ш Ч L) 42 × 504 mm
Fastening
• Immersed pipe
• Chain
Service life measuring electrode Approx. 1 year
Sensor power < 7 W