8161 SERIES DIN RAIL AMPLIFIER MANUAL
4
“0” = Switch OFF, “1” = Switch ON
Sensitivity (mV/V)
for 5V
exc
Sensitivity (mV/V)
for 10V
exc
SW2-
1 2 3 4
7.0 - 11.0
3.5 – 5.5
0 0 0 1
4.6 – 7.0
2.3 – 3.5
0 0 1 0
3.0 – 4.6
1.5 – 2.3
0 1 0 0
2.0 – 3.0
1.0 – 1.5
1 0 0 0
1.5 – 2.0
.75 – 1.0
1 0 1 0
1.0 – 1.5
.50 - .75
1 1 0 1
.90 – 1.0
.45 - .50
1 1 1 1
Figure 2 – SW2 Switch Settings
Example:
2.5 mV/V transducer
V
EXC
= 10 volts
Set:
SW2-1 (Off)
SW2-2 (Off)
SW2-3 (On)
SW2-4 (Off)
2.
Hookup transducer as shown in Figure 3, then connect power supply.
3.
Apply DC power (10 to 28 volts) to terminals 1 and 2 (see Figure 3). Allow 30 minutes
of warm-up time for stabilization of transducer characteristics.
4.
With the transducer unloaded, set the voltage output to ZERO using the coarse and fine
zero controls. If the current output is to be used, set ZERO to 4 mA using the 4 mA
adjust.
5.
Load the transducer to a convenient up-scale value, which is greater than one half of full
scale. Adjust the fine span control until the voltage output signal reading is equal to the
dead weight value. Remove the dead weight, then press the RCAL switch and note the
voltage reading obtained. This reading can now be used in future calibrations since it is
related to a value obtained thru dead weight calibration. To calibrate the instrument in
the future, simply press the CAL button and adjust the fine span control to obtain the
SW2
1 2 3 4
ON
Содержание 8161-011A
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