Cleveland Motion Controls Classic Series DIN Rail Amplifier Non-Isolated MWI-13466 REV CA - Manual (Page 16)

C LASSIC S ERIES N ON -I SOLATED A MPLIFIER MAN-13466 R EV CA
P AGE 16 OF 26
2.12.2.2 D AMPED +/- 1 M A A NALOG
The meter output stage can be configured to operate as current output (sinking or sourcing current depending upon
output polarity). It can be used concurrently with the +/-10V output. It does not have an individual Gain and Zero
adjustment, necessitating that a compromise be made during calibration, or a particular output be favored (over one
that can accommodate external scaling and offsetting).
To facilitate individual scaling of the analog meter a panel meter (MO-13655) with scaling board, is available as
an accessory for use with Classic Series tension transducer amplifiers. The scaling board lets the analog meter
have a different scaling factor than that of the main (un-damped) analog output.
MAXIMUM METER RESISTANCE = 7K OHMS
1mA
1
4
3
2 +
Figure 9 - Output Wiring, Damped mA Meter with Scaling Board
3 P
OWER
-
UP AND
T
ESTING
3.1.1 B EFORE A PPLYING P OWER
Before applying power, check the wiring to the amplifier. Pay particular attention to the following:
• Double check the transducer connections to ensure that the excitation supply is not short-
circuited.
• Use an approved anti-static wrist strap when adjusting any switch settings/potentiometers on the
amplifier.
• Use the appropriate tool when making any adjustments to the potentiometers on the amplifier or
changing switch settings. Damage to the circuitry may occur if excessive force is used or a
conductive tool accidentally contacts internal voltages.
Before applying power, confirm that the zero potentiometers are mid-span and the gain is minimum. Use the
following table to adjust potentiometers:
Adjustment Potentiometer Default
Gain – P2 Full counter-clockwise
Zero – P1 Mid-way (9 turns from full counter-clockwise)
Coarse zero Mid-way (6 turns from full counter-clockwise)