Instruction manual

Instruction manual αlpha DO 2000

6.6 Current Output 1 sub-function

In this subfunction you set the current output range of the transmitter for dissolved oxygen

values.

90.0

ENT

SETUP

HOLD

SETUP

HOLD

ENT

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

ENT

SETUP

HOLD

1. Select the “CUR.1” subfunction, then press the 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 the 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 the ▲ or ▼ key to set the dissolved oxygen value to be equivalent to 4 mA or 0 mA,

respectively. Press the ENT key to confirm your setting.

4. Setting the dissolved oxygen value at which the transmitter output will be 20 mA: press

the ▲ or ▼ key to set the dissolved oxygen value to be equivalent to 20 mA. Press the 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 dissolved oxygen value is below

or above the values set in points 3 & 4 above. Press the ENT key to confirm your setting.

Note: the “CU22” setting (on/off) of current output 1 applies to current output 2 as

well.

Continue with Setup mode procedures, or return to Measurement mode by pressing the ▲

and ▼ keys simultaneously (escape).