Thermo Fisher Scientific Alpha RES 1000 - Manual (Page 25)

Operating Instructions Alpha RES 1000
18
7.5.3 Measurement Range available in the Controller
Range No. Range Resolution Default cell K
1 0.000 – 19.99 m Ω 0.01 m Ω 0.01
2 0.00 – 1.999 m Ω 0.001 m Ω 0.1
7.5.4 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.
1) Follow directions in 7.5.2 to enter Controller mode.
2) Press ENTER key. Please refer to 7.5.5 for current output
sub-function.
7.5.5 Choosing the output type
This parameter lets you choose between 0-20 mA or 4-20 mA
output.
1) Follow directions in 7.5.4 to enter Current Output mode.
2) Scroll with the ENTER key until the upper display shows the
output type (0-20 or 4-20), and the lower display shows “out”.
3) Press the Δ or ∇ keys to select your output type: 0-20 or 4-20
mA.
4) Press ENTER key to confirm your selection.
5) Proceed to 7.5.6, or return to Measurement mode by pressing
the
Δ and ∇ keys simultaneously (escape).
7.5.6 Selecting Resistivity value at 0(4)mA
This parameter selects the resistivity value at which transmitter output will be 0(4) mA. Follow directions in
7.5.4 to enter Current Output mode.
1) Press ENTER key until upper display shows a resistivity value and lower display shows “r.0(4)”.
2) Press
Δ or ∇ keys to select required resistivity value to be equivalent to 0(4) (Default is 0.00 m Ω).
Please note that difference between value at 4mA and 20mA must be at least 20% of F.S. Press ENTER
key.
3) Press ENTER key to return to Advanced Set-up mode, or return to Measurement mode by pressing Δ
and ∇ keys simultaneously (escape).
4-20
out
HOLD SETUP
20.00
mΩ
r.20
0.00
HOLD SETUP
HOLD SETUP
1
1
1
mΩ
r.4