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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