2
All rights are reserved. Reproduction in whole or in part is prohibited without the
written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode
Island, 02895, USA.
Dear Customer,
Thank you for choosing a Hanna Instruments Product.
This instruction manual refers to the following products:
pH500111-α pH controller with single setpoint, ON/OFF
control, analog output
pH500112-α pH controller with single setpoint, ON/OFF
control, RS232 output
pH500121-α pH controller with single setpoint, propor-
tional and ON/OFF controls, analog output
pH500122-α pH controller with single setpoint, propor-
tional and ON/OFF controls, RS232 output
pH500211-α pH controller with dual setpoint, ON/OFF
control, analog output
pH500212-α pH controller with dual setpoint, ON/OFF
control, RS232 output
pH500221-α pH controller with dual setpoint, proportional
and ON/OFF controls, analog output
pH500222-α pH controller with dual setpoint, proportional
and ON/OFF controls, RS232 output
mV600111-α ORP controller with single setpoint, ON/OFF
control, analog output
mV600112-α ORP controller with single setpoint, ON/OFF
control, RS232 output
mV600121-α ORP controller with single setpoint, propor-
tional and ON/OFF controls, analog output
mV600122-α ORP controller with single setpoint, propor-
tional and ON/OFF controls, RS232 output
α = 1 means 115 Vac, 50/60 Hz power supply
α = 2 means 230 Vac, 50/60 Hz power supply
Please read this instruction manual carefully before using the
controller. For more information about Hanna Instruments
and our products, visit www.hannainst.com or e-mail us
For technical support, contact your local Hanna Instruments