Thermo Fisher Scientific Alpha DO 2000 - Manual (Page 35)

Instruction manual
Alpha DO 2000
6.6 Current Output 1 Settings (CUR 1)
In this section, you set the current output range of the transmitter for
dissolved oxygen values.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP SETUP
HOLD HOLD
% %
SETUP
SETUP
HOLD
HOLD
SETUP SETUP
HOLD HOLD
% %
ENT ENT ENT ENT
ENT ENT ENT
ENT
ENT
3 2
2
1 4
4 3
5
5
1. From the setup mode, select the “CUR 1” screen and then press ENT key.
2. Selecting the output type: Press the ▲ or ▼ key to select the desired
output type: 0-20 mA or 4-20 mA. Press ENT key to confirm your selection.
3. Setting the dissolved oxygen value at which the transmitter output will
be 4 mA (or 0 mA): Press ▲ or ▼ key to set the dissolved oxygen value to
be equivalent to 4 mA or 0 mA, respectively. Press ENT key to confirm your
setting.
4. Setting the dissolved oxygen value at which the transmitter output will
be 20 mA: Press ▲ or ▼ key to set the dissolved oxygen value to be
equivalent to 20 mA. Press ENT key to confirm your setting.
5. Selecting out of range current: Press the ▲ or ▼ key to switch “CU22” on
or off. If “CU22” is on, the output signal will jump to 22 mA, when the
measured DO value is below or above the values set in step 3 & 4 above.
Press ENT key to confirm your setting.
Î NOTE: The “CU22” setting (on/off) of current output 1 applies to current output 2
as well.
The controller goes back to “CUR 1” screen.
Continue with rest of the Setup procedures by pressing ▲ or ▼ key or return
to the Measurement mode by pressing ▲ and ▼ keys (escape)
simultaneously.
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