MODEL: M2RTS
EXTERNAL VIEW
(A) Polarity Indicator LED
(B) Ratio/Bias Display
(C) Ratio/Bias Selector
Top: Ratio
Bottom: Bias
(D) UP/DOWN Control
(E) Zero Adj.
(F) Span Adj.
The front cover cannot be turned open by 180 deg.
when there is no extra space between units.
• How to Set the Ratio
Turn the Ratio/Bias Selector (C) to the top.
The Ratio/Bias Display (B) shows the current ratio (0.10 –
4.00). Press UP/DOWN Control (D) until the display shows a
desired set value.
The Polarity Indicator LED (A) is red when the set value is in
positive range, green when in negative range.
• How to Set the Bias
Turn the Ratio/Bias Selector (C) to the bottom.
The Ratio/Bias Display (B) shows the current bias (0 –
100%). Press UP/DOWN Control (D) until the display shows
a desired set value.
The Polarity Indicator LED (A) is red when the set value is in
positive range, green when in negative range.
• Fine Calibration
Equation:
Xo = K(Xi + B) (proportional)
Xo = K(Xi + B) + 100 % (inverted)
1) Calculate the input signal Xi which results in 0 % output.
Apply the calculated input and adjust with Zero Adj. (E) the
output Xo to 0 %.
2) Calculate the input signal Xi which results in 100 %
output. Apply the calculated input and adjust with Span
Adj. (E) the output Xo to 100 %.
3) Apply the calculated zero point input again and check the
output Xo.
4) If the output has been shifted, go through (1) through (3)
again.
The unit is factory set and calibrated to the following ratio
and bias values.
Proportional characteristics: ratio (K) = 1, Bias (B) = 0 %
Inverted characteristics: ratio (K) = -1, Bias (B) = 0 %
M2RTS SPECIFICATIONS
ES-5096 Rev.11 Page 4/5
http://www.m-system.co.jp/