Used to go back to the previous menu from any other menu.
When various settings are made in the hold mode, pressing this key once will return
you to the previous item.
The change that has been previously made to any setting is canceled.
Used to change the displayed item or value.
Pressing the key will increase/decrease the value by an increment/decrement
of 1. Holding down the key will continuously increase/decrease the value.
The [
] and [
] keys are used to scroll up and down, respectively. If the
screen is scrolled up or down excessively with either key, press the other key.
Hold down Holding down this key in the hold mode will enter the measurement mode.
Holding down this key in the measurement mode will enter the hold mode.
Holding down this key in the hold mode will enter the measurement mode.
Used to establish each setting or calibrated value.
When this key is held down until the CAL indicator lights up, the span calibration mode
becomes active.
Supply zero solution
to the measurement
cell. Press ENT to
carry out zero cali-
bration.
Residual chlorine monitor HR-200 Operation procedure 1
Names of display panel
Status display lamps
Turns ON while a contact signal
is being input externally.
Illuminated when the FAIL sig-
nal is output via the relevant
contact.
Turns ON when system error
E-90, E-91, or E-92 occurs.
Main display
Displays a measured value
Sub display
Displays a set value or
error code.
Cal mode (CAL)
Hold mode (HOLD)
Indicator lamps
Span calibration
Hold down [CAL] until the CAL
lamp lights up.
When the electrical zero
signal is judged to be sta-
ble, electrical zero calibra-
tion is completed and “----”
will disappear.
It is ready for span calibra-
tion when measured data
is displayed. When the
measured value becomes
stable, press ENT.
The reference value will
start blinking on the sub
display. Use arrow keys to
adjust the reference value
to the value measured
with a DPD tester.
Illuminated during the cleaning
process.
Residual chlorine concentration calibration
The zero calibration
will start with the
measured value
blinking on the main
display. When the
reading becomes
lowered and stable,
press ENT.
The sub display starts blinking. At this point, the
new calibration value is applied. The display
automatically returns to the Hold mode.
Press ENT, the sub display
will start blinking.
Use arrow keys to adjust
the value displayed on the
main display to the refer-
ence water temperature.
And then press ENT.
The electrical zero calibra-
tion will start automatically
and "----" will be blinking.
Temperature calibration
Calibration by zero solution
Turns ON when one of the
sensor errors E-11 through
E-72 occurs.
h19136 | UTC 2020/03/30 3:34:51
CONFIDENTIAL
