Hanna-instruments HI 9910 Uživatelský manuál stáhnout pdf (Strana 11)

Specifications HI 9911

RANGE 0.00 to 14.00 pH

RESOLUTION 0.01 pH

ACCURACY ±0.02 pH

(@20°C/68°F)

TYPICAL EMC ±0.1 pH

DEVIATION

mA OUTPUT User-selectable 0 to 20 mA or 4 to 20 mA

over the 0-14 pH range with isolated output

CALIBRATION Through "OFFSET" and "SLOPE" trimmers

(Max. ±1.5 pH for offset and 80% to 110% for slope)

SETPOINT

RANGE

PROPORTIONAL pH is user adjustable from 0.0 to 2.0 and

CONTROL time cycle from 0 to 90 seconds

DOSING TERMINALS Two sets of independent relay terminals (115 to 240V,

Max.2A, 1,000,000 strokes) are activated whenever pH

exceeds the “ACID” setpoint or falls below the “ALK”

setpoint (Alkaline dosage)

ENVIRONMENT -10 to 50 °C (14 to 122 °F)

max. 95% RH non-condensing

WEIGHT 1.6 Kg (3.5 lb.)

ENCLOSURE 181 x 221 x 142mm (7.1 x 8.7 x 5.6")

CASE MATERIAL Fiber-reinforced, self-extinguishing ABS

POWER SUPPLY 220/240V or110/115V at 50/60Hz

From 0.00 to 14.00 pH with 2 trimmers: "COARSE"

for approx. regulation, "FINE" for fine tuning.

TEMPERATURE

COMPENSATION

Manual from -10 to 80 °C (14 to 176 °F) or automatic

with 3-wire Pt 100 probe from 0 to 50 °C (32 to 122 °F)

ALARM

CONTACT

Terminals can be configured as normally open or

normally closed (isolated output Max. 2A, Max.

240V, resistive load, 1,000,000 strokes). The alarm

is activated if pH varies by more than user-selectable

interval (0 to 2 pH) from setpoint or due to

overdosage

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 39 40

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Hanna-instruments HI 9910 Uživatelský manuál Strana 11