Monarch Instrument ACT-3 - Manual (Page 10)

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3.78 [96]
1.89 [48]
3.58 [91]
1.74 [44] Panel Cutout
0.28 [7] 6.00 [152] 0.31 [8]
1.69 [43]
button. The next reading will always update both values. This will keep the minimum value from
showing zero unless there was a zero reading after the RECALL and RESET buttons were
pressed.
Thus, if you start a motor, for example, from zero, the minimum will start recording with the first
reading. Usually the user will reset the minimum once the motor is up to speed. When slowing
to a stop, the minimum will naturally tend to zero, but the maximum will be retained.
2.0 INSTALLATION and POWER
The ACT2A, ACT3A and ACT3 instruments have a 1/8 DIN enclosure requiring a 3.58” wide by 1.74”
high (91x44 mm) mounting hole. Approximately 7” (178 mm) will be required behind the panel. Refer
to Figure 1 below.
Figure 1 Dimensions in Inches [Millimeters]
Before installing, check the power supply requirements on the rear panel. Remove the mounting clips,
if fitted, and install the unit into the panel from the front. From the rear of the unit, install the mounting
clips into the slots on each side of the unit and tighten the mounting screws against the front panel.
WARNING: Do not over tighten the mounting screws.
Power to the unit is connected to the terminals under the sections labeled POWER on the rear panel.
Be sure the power supplied matches the specification indicated on the rear panel. Refer to Figure 2
below.
Figure 2 ACT Rear Panel (AC powered unit)
If the unit is ac powered (115 Vac or 230 Vac), connect the Live (Hot) wire to the terminal marked L
and the Neutral (Return) wire to the terminal marked N. Connect the Ground (Earth) wire to the
terminal marked GND.
NOTE: The ground connection is not required as the unit is fully isolated from the mains.
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9.0 OPTIONS and ACCESSORIES / SENSORS
CAL-N.I.S.T. N.I.S.T. Traceable Certificate of Calibration (standard on ACT-3)
T-5 Reflective Tape - 5 foot (1.5 m) roll, 0.5 inch (10 mm) wide
ROS-W Remote Optical Sensor with 8-foot cable length
ROS-P-25 Remote Optical Sensor with 25-foot cable length
SLS Smart Laser Sensor
IRS-W Infrared Sensor
M-190W Magnetic Sensor
MT-190W Magnetic Sensor with Amplifier Module
P5-11 Proximity Sensor
GE-200 Gasoline Engine Spark Inductive Sensor
For Longer Cable Lengths for Sensors:
Bulk Wire 3-wire shielded Sensor Cable, bulk lengths for any sensor
Remove any plug (P) to create a tinned wire (W) sensor.
NOTE: W = 3 tinned wire termination, P = 3.5 mm phone plug termination.