Operating Instructions
Thermo Scientific Alpha COND 1000
22
7.6
Current Output (rng) sub-function
This sub-function lets you set the transmitter current output range of this unit. The
difference between the upper and lower range has to be a minimum of 20% of Full
Scale, anywhere on the scale.
7.6.1
Entering current output sub-function
1) Enter Advanced Set-up mode. Push the
ENTER
key
and scroll to Advanced Set-up security code “22”.
Push the
ENTER
key again.
2) Press
the
▲
or
▼
keys to scroll until the upper
display shows “rng”. Press
ENTER
.
3) Measurement
range
selection. Please refer to 7.5.
Press
ENTER
to proceed to current output sub-
function (7.6.2)
7.6.2
Choosing the output type
This parameter lets you choose between 0-20 mA or 4-
20 mA output.
1) Follow directions in 7.6.1 to enter Current Output
mode.
2) Press the
ENTER
key. Scroll with the
▲
or
▼
keys
until the upper display shows the output type (0-20 or
4-20), and the lower display shows “out”.
3) Press the
▲
or
▼
keys to select your output type: 0-
20 or 4-20 mA.
4) Press the
ENTER
key to confirm your selection.
5) Proceed to 7.6.3, or return to Measurement mode by
pressing the
▲
and
▼
keys simultaneously (escape).
7.6.3
Selecting Conductivity value at 0(4)mA
This parameter lets you choose the conductivity value at
which the transmitter output will be 0(4) mA.
1) Follow directions in 7.6.1 to enter Current Output
mode.
2) Press
the
ENTER
key. Scroll with the
▲
or
▼
keys until the upper display
shows a conductivity value and the lower display shows “r.0(4)”.
3) Press
the
▲
or
▼
keys to select the required conductivity value to be
equivalent to 0(4) mA (0.00 to 80.0 % F.S.; Default is 0% F.S.).
4) Press
the
ENTER
key to confirm your selection.
5) Press
the
ENTER
key to return to Advanced Set-up mode, or return to
Measurement mode by pressing the
▲
and
▼
keys simultaneously (escape).
HOLD
HOLD
HOLD
HOLD
SETUP
SETUP
SETUP
SETUP
4
4
4
4
200.0
0.0
200.0
4-20
0.1
.20
μ
S
μ
S
μ
S
HOLD
SETUP
