HANNA BBL931700-0 迷你pH控制器，0.01分辨率，4-20 MA记录仪输出，12VDC

Specifications
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 (3.3 x 2.1 x 3.9’’)
Weight     BL931700-0: 200 g (7.1 oz.);
BL931700-1: 300 g (10.6 oz.)
Ordering Information     BL931700-0 (12 VDC) and BL931700-1 ( 115V) are supplied with mounting brackets, transparent cover and instruction manual.

datasheet