Yokogawa EXA PH202 2-Wire pH/ORP Analyzer - Manual (Page 70)

IM12B07D02-01E
Parameter setting 5-19
5-3-5. User interface
Code 50 *RET. When Auto return is enabled, the transmitter reverts to the measuring mode
from anywhere in the configuration menus, when no button is pressed during
the set time interval of 10 minutes.
Code 51 *MODE The manual impedance check (on demand) can be setup for operation in the
maintenance mode. (Through the closed front cover).
Code 52 *PASS Passcodes can be set on any or all of the access levels, to restrict access to
the instrument configuration.
Code 53 *Err.4.1 Error message configuration. Two different types of failure mode can be set.
Hard fail gives a steady FAIL flag in the display, A Fail signal is transmitted on
the outputs when enabled in code 32.
Soft fail gives a flashing FAIL flag in the display. The call for maintenance is
a good example of where a SOFT fail is useful. A warning that the regular
maintenance is due, should not be used to shut down the whole measurement.
Code 54 Not used
Code 55 *CALL.M Call for maintenance is a trigger to signal that the system has been in service
for longer than the set time without calibration. The user can set up to 250 days
as a routine service interval.
Code 56 *DISP The display resolution can be set to either 0.01pH or 0.1pH. Not applicable to
the ORP (mV) display.