Specifications

155
Transducers
Handling
T-51/T-101 Series
Short-circuiting and opening of output terminals
Terminals for current output ··········· Although the terminals may be opened/short-circuited, a voltage of 8~50V is generated
when they are opened.
Terminals for voltage output ··········· Although the terminals may be opened, do not short-circuit them.
Checking output
Release the load and measure with a voltmeter or ammeter using an input resistance within the specified load range (except
the K Series).
Output adjustment
 Although the transducer output is adjusted according to the predetermined specifications, use the span adjuster or zero
adjuster on the transducer surface to perform readjustment for matching.
Ordinarily, do not touch these except in special cases.
 With the T-51 and T-101 series, output adjustment is performed upon removing the cap. For dust prevention, put the cap
back on after adjustment.
 Adjustment method
qWith the span adjuster and zero adjuster, the output
increases when turned clockwise and decreases when
turned counterclockwise.
wWith the zero adjuster, the output range is increased or
decreased by a fixed value (approximately ±0.3~±5% with
respect to the span) as shown in the figure on the right.
eWith the span adjuster, the output increases or decreases
at the same proportion (±3%~±15% with respect to the
rated output) with zero input as the base point.
 Standard adjustment procedure
Apply the auxiliary power supply and perform zero adjustment so that the predefined output is output in a state where an
input is not applied. Then, apply the rated input and perform span adjustment so that the rated output is output.
However, zero adjustment of a frequency transducer is performed with the lower-limit frequency being input, and span
adjustment is performed with the upper-limit frequency being input.
 Do not apply an excessive force to the adjusters.
K Series transducer
Measure with a voltmeter or ammeter using the same input resistance as the specified load resistance.
If such an indicator is not available, check using the following method.
K Series
transducer
Measuring device
Parallel resistance (R
P)
Calculate the parallel resistance R
P. RP =
<Voltage output>
(RL: load resistance)
Input resistance (R
!)
Output
R!/RL
R!-RL
K Series
transducer
Measuring device
Serial resistance (R
S)
Calculate the serial resistance R. R
S =RL-R!.
<Current output>
(RL: load resistance)
Input resistance (R
!)
Output
Output
Input
Input
Output
<Zero adjustment> <Span adjustment>