BL981411 เครื่องวัดและควบคุมค่ากรดด่าง pH Controller ย่านการวัด 0.0 to 14.0 pH แม่นยำ±0.2 pH

Feature BL981411

• Adjustable Dosing Relay:The BL981411 features a dosing relay which may be configured to dose above or below a user programmable pH setpoint.
• Selectable Overdose Protection: The mini controller may be programmed to deactivate a valve, pump, or connected device if its activation continues over a selected time; adjustable from 5 to 30 minutes.
• Selectable Control Override:With the flick of a switch, normal “Auto” operation may be overridden turning your connected device “Off” from operation or always “On.”

Specifications BL981411

• Range 0.0 to 14.0 pH
• Resolution 0.1 pH
• Accuracy (@25°C/77°F) ±0.2 pH
• Calibration manual, 1 point through CAL (offset) trimmer
• Dosing Relay maximum 2A (fuse protected), 250 Vac, 30 VDC
• Dosing Selection acid or alkaline  : Contact open=acid dosage=relay ON if measurement > setpoint   , Contact closed=alkaline dosage=relay ON if measurement < setpoint
• Setpoint adjustable from 0 to 14 pH
• Overtime adjustable, typically from 5 to approximately 30 minutes
• Input Impedance 10¹² Ohm
• Power Supply BL981411-0: 12 VDC adapter (included); BL981411-1: 115/230 VAC; 50/60Hz
• Dimensions 83 x 53 x 99 mm (3.3 x 2.1 x 3.9’’)
• Weight  : BL981411-0: 200 g (7.1 oz.), BL981411-1: 300 g (10.6 oz.)

Ordering Information: BL981411-0 (12 VDC) and BL981411-1 (115V/230V) are supplied with mounting brackets, transparent cover, and instruction manual.

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