Thermo Fisher Scientific Alpha COND 500 - Manual (Page 22)

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6.3 HOLD Current Setting
When Transmitter is in CAL or SETUP modes, it
automatically goes into a ‘HOLD’ mode.
To indicate Transmitter is in ‘HOLD’ mode, output current
can be set to 22 mA output by activating the ‘HLD On’.
1. Press the ENT key and use ▲ or ▼ keys to scroll
till LCD displays ‘SEt’ in the upper display; and
‘HLd’ in the lower display. Press the ENT key
again.
2. Upper display now shows ‘HLd’. Lower display will
show either ‘OFF’ or ‘On’. Use ▲ or ▼ keys to
toggle between ‘On’ or ‘OFF’. Press ENT to accept
selection.
3. Press S and T keys together, to return to the
measurement mode.
NOTE: If ‘HLd’ is set to ‘OFF’, then current output will be
equivalent to last measured value.
6.4 Out-of-Range Current Setting
The transmitter can be set to give a fix current output of 3.8 mA when the
conductivity readings exceed the zoom setting range. This Out
of Range indicator feature is applicable in the uS ranges only.
1. Press the ENT key and use ▲ or ▼ keys to scroll till
LCD displays ‘SEt’ in the upper display; and ‘org’ in
the lower display.
2. Press the ENT key again. Upper display now shows
‘org’. Lower display will show either ‘OFF’ or ‘On’. Use
▲ or ▼ keys to toggle between ‘On’ or ‘OFF’. Press
the ENT key to confirm the selection.
3. Press S and T keys together, to return to the
measurement mode.
NOTE: If ‘org’ is set to ‘OFF’, current output below the low
zoom setting will be at 4 mA, while current output above the
high zoom setting will be at 20 mA.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD