Hofmann PMH-2, Руководство пользователя

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The next menu sets Relay2 as alarm or up/down setpoint mode. The
LED shows green with up/down, red with alarm. Push and rotate to select
alarm, down or up. If alarm selected, push again to set the low alarm
setpoint. The LED now flashes slow. Low alarm range is from 0.00pH
(000mV) to high alarm. High alarm range is from low alarm to 14.00pH.
(1000mV) After saving down or up mode rotate to move to change the
setpoint. Default setpoint is set at pH 7.50 (750mV) for down mode,
pH 6.50 (650mV) for up mode.
Flow switch configuration mode is selected for normally open [OP] or
normally closed. [CL]
4-20mA output is configured for normal [nor] or setpoint [SP.] operation.
The pH / mV for 4mA and 20mA are selected in the next configuration. First
the 4mA LED flashes to allow entering and ‘SAVE’ pH / mV for 4mA. Repeat
this procedure for 20mA. 4mA range is from 0.00pH (000mV) to pH7.00
(500mV). 20mA range is from pH8.00 (600mV) to pH14.00 (1000 mV).
Only the 20mA slope is entered in mA Setpoint. Range for the mA slope
is 0.5 to 5.00pH (50 to 500 mV). 4mA always is setpoint. It is important to
note that dosing mode [UP, dn] is properly selected if SP. mode is used.
If additional changes are necessary rotate ‘CW’ or ‘CCW’ to return to
any of the above mentioned options. Only a single configuration change
can be made if necessary. There is no need to configure from beginning
to end.
F
A single configuration change can be made if necessary. There is no need
to configure from beginning to end.
When all configurations are done step to the next menu [End] to exit.
‘PUSH’ returns to operating mode. The PMH-2 always returns to operating
mode after 2 minutes if left in configuration or calibration mode.
To only change the setpoint push and hold down the encoder until the
green LED flashes and the present setpoint is displayed. Release and dial
a new setpoint. Push again until the SAVE LED flashes two times.
PMH-2 Instruction manual PAGE 15