HANNA BL932700-0 ORP Mini Controller, range: -1000 to +1000 mV, 4-20 MA recorder output, 12VDC

Specifications
Range     ±1000 mV
Resolution     1 mV
Accuracy (@25°C/77°F)     ±5 mV
Calibration     manual, with CAL trimmer
Dosing Relay     maximum 2A (fuse protected), 250 Vac, 30 VDC
Dosing Selection     reducing or oxidizing, selectable on the back panel
contact open=reductant dosage=relay ON if measure > setpoint
contact closed=oxidant dosage=relay ON if measure < setpoint
Setpoint     adjustable from -1000 to 1000 mV
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     BL932700-0: 12 VDC adapter (included);
BL932700-1: 115/230 VAC; 50/60Hz
Dimensions     83 x 53 x 99 mm (3.3 x 2.1 x 3.9’’)
Weight     BL932700-0: 200 g (7.1 oz.)
BL932700-1: 300 g (10.6 oz.)
Ordering Information     BL932700-0 (12 VDC) and BL932700-1 ( 115V) are supplied with mounting brackets, transparent cover and instruction manual.