Hach-Lange SI627 P - Manual (Page 19)

15
4. Operation
ENGLISH
Current output 4 to 20 mA depending on the pH
a = Factory default values
b = Example of values user-programmed
4.6. Operation of 4 to 20 outputs and Relays
The analogic output offers 3 levels of different currents:
• 4 to 20 mA for measurement signal (pH or mV).
• 21 mA frozen, or the last mA value measured, when the instrument is in Hold state.
• 22 mA frozen, with the message OUT OF RANGE on display during 1 minute or more. Alarm.
a b
si627 P_HACH_LANGE_Ed.0510.indd ANG:15 si627 P_HACH_LANGE_Ed.0510.indd ANG:15 20/5/10 10:50:48 20/5/10 10:50:48