muarah, Hanna HI 9910 PH Controllers

Hanna HI 9910 PH Controllers HI 9910 is a pH controller with a single set point for proportional dosage of acid or alkaline solutions. Any pH electrode ending in a BNC connector can be directly attached to the controller. The proportional control can be fine tuned through two dials on the front panel. The time cycle is adjustable from 0 to 90 seconds and the proportional band from 0.0 to 2.0 pH. Coarse and fine as well as offset and slope trimmers make accurate setting and calibration easy and convenient. A pump or electrovalve can be wired directly to the controller and be powered through the terminals. Spesifikasi - Hanna HI 9910 PH Controllers Range 0.00 to 14.00 pH Resolution 0.01 pH Accuracy @ 20° C ± 0.02 pH Calibration through " OFFSET" and " SLOPE" trimmers ( max. ± 1.5 pH for offset and 80% to 110% for slope) Temperature Compensation automatic from 0 to 50° C with Pt100 probe or manual from -10 to 80° C Setpoint from 0.00 to 14.00 pH with " COARSE" and " FINE" trimmers with " ACID" or " ALK" ( alkaline) selection mA Output user selectable 0 to 20 mA or 4 to 20 mA over the 0-14 pH range with isolated output Proportional Control pH is user adjustable from 0.0 to 2.0 and time cycle from 0 to 90 seconds 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 set point or due to overdosage Dosing Terminals relay terminals ( 115 to 240V, max.2A, 1, 000, 000 strokes) are activated when pH exceeds the set point with “ ACID” dosage or falls below the set point with “ ALK” selection ( alkaline dosage) Power Supply ± 10% 115 VAC or 230 VAC; 50/ 60 Hz Environment -10 to 50° C ( 14 to 122° F) ; RH max 95% non-condensing Case Material fiber-reinforced, self-extinguishing ABS Dimensions 221 x 181 x 86 mm ( 8.7 x 7.1 x 3.4’ ’ ) Weight 1.6 kg ( 3.5 lb.)