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pH Controller HANNA HI-8711 _Bisa NEgo


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PH CONTROLLER HANNA HI-8711

HI-8711 allows the selection of two set points with two independent outputs for acid and alkaline dosages. Each model accepts either a direct input from a pH or ORP electrode or from a transmitter through 4-20 mA input. The instrument also provides ±5V power output and input terminals for amplified electrodes.

pH Controller HANNA HI-8711

Specifications
Range - pH : 0.00 to 14.00 pH
Resolution : 0.01 
pHAccuracy : - ±0.02 pH (0 to 100°C) - ±0.05 pH (-20 to 0°C) - ±0.5% (input from transmitter)
Input    : High impedance 10 12 Ohm; Reference and Matching pin inputs are available; 4-20 mA
Power Output : ±5 Vcc; 150 mA max load for amplified electrodes
Calibration  : 
  •  Offset: ±2 pH with OFFSET trimmer;
  •  Slope: 80 to 110% with SLOPE trimmer
Temperature Compensation : fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F)
Recorder Output : 0-20 mA or 4-20 mA (isolated)
Setpoint Relay : 2, isolated, 2 A, Max 240 V, resistive load, 1000000 strokes (not fuse protected)
Setpoint Range : 0.00 to 14.00 pH
Alarm Relay : 1, isolated, 2 A, Max 240 V, resistive load, 1000000 strokes (not fuse protected)
Alarm Range : 0.2 to 3.00 pH
Dosing Control : OFF/AUTO/ON with selection switch
Over Dosing Control : Adjustable, from 5 min to 60 min with button or disable by wire strap - on rear panel
Backlight : Continuous ON
Power Supply : 115 or 230 Vac; 50/60 Hz
Enclosure : Flame retardant ABS body and front panel;  transparent splash-proof front cover
Environment : -10 to 50°C (14 to 122°F); RH max 95% non-condensing
Panel Cutout : 141 x 69 mm (5.6 x 2.7")
Weight : 1 kg (2.2 lb.)



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