Hanna Instruments HI 23 Series Instruction Manual page 2

Dear Customer,
Thank you for choosing a Hanna Product.
This instruction manual refers to the following products:
HI 23211-α α α α α EC controller with dual setpoint, ON/OFF
HI 23212-α α α α α EC controller with dual setpoint, ON/OFF
HI 23221-α α α α α EC controller with dual setpoint, ON/OFF
HI 23222-α α α α α EC controller with dual setpoint, ON/OFF
HI 24211-α α α α α EC and TDS controller with dual setpoint,
HI 24212-α α α α α EC and TDS controller with dual setpoint,
HI 24221-α α α α α EC and TDS controller with dual setpoint,
HI 24222-α α α α α EC and TDS controller with dual setpoint,
α α α α α =
Please read this instruction manual carefully before using the
instrument. It will provide you with the necessary information
for the correct use of the instrument, as well as a precise idea
of its versatility.
If you need additional technical information, do not hesitate
to e-mail us at tech@hannainst.com
These instruments are in compliance with the
2
control and analog output
control and RS 485 port
and PID control, and analog output
and PID control, and RS 485 port
ON/OFF control and analog output
ON/OFF control and RS 485 output
ON/OFF and PID control, and analog out-
put
ON/OFF and PID control, and RS 485 port
1, for models with 115 Vac power supply
2, for models with 230 Vac power supply
tech@hannainst.com tech@hannainst.com tech@hannainst.com tech@hannainst.com
directives.