BL931700 เครื่องวัดและควบคุมค่ากรดด่าง pH Controller มี Output 4-20mA พร้อมใบรับรอง Certificate

Feature BL931700

• Enhanced Accuracy & Precision : The BL931700 model offers a manual two-point calibration with pH values displayed out to two decimal places.
• External Disabling Feature : A normally open contact may connect to a level controller or flow monitor. This safety feature may be used to prevent continuous dosing in the event of specific or undesired system conditions.
• Adjustable Dosing Relay : The BL931700 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 BL931700 Recorder Output 

• Range 0.00 to 14.00 pH
• Resolution 0.01 pH
• Accuracy (@25°C/77°F) ±0.02 pH
• Calibration manual, 2 points through offset and slope trimmers
• 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
• Analog Output 4 to 20 mA, accuracy ±0.20 mA, 500 ¥ maximum load
• Power Supply BL931700-0: 12 VDC adapter (included); BL931700-1: 115/230 VAC; 50/60Hz
• Dimensions 83 x 53 x 99 mm
• Weight BL931700-0: 200 g; BL931700-1: 300 g

Ordering Information BL931700-0 (12 VDC) and BL931700-1 (115V/230V) are supplied with mounting brackets, transparent cover and instruction manual.

ขนาด Panel สำหรับ BL931700 

Specification หัววัดสำหรับ BL931700 

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