PASCO ME-9496 User Manual
Time Pulse Accessory
®
START push
button
TIME control
switch
VARIABLE
control knob
Output plug,
3.5 mm
ME-9496 Time Pulse Accessory
TIME Control Switch settings
Setting number
ME-9496
Introduction
The P ASCO T ime Pulse Accessory is designed to activate the ME-9491Fan
Accessory or the ME-9781 Variable Speed Motorized Cart for a selectable
period of time. Since the Fan Accessory produces an approximately constant force, the Time Pulse Accessory can be used to perform motion studies of a cart under conditions of constant acceleration for a fixed time
interval. When used with the Variable Speed Motorized Car, the same kind
of studies can be done for constant speed conditio ns.
Controls
Instruction Manual
012-06729D
*012-06729*
The Time Pulse Accessory has three controls: START, VARIABLE, and
TIME. The TIME control switch is a four-position switch. The selected
time interval is indicated by a small number visible in the “V”-shaped
notch on the switch. The “0” position is a 1 second interval, the “1” position is a 2 second interval, “2” position is a 4 second interval, and the “3”
position makes the VARIABLE control knob active.
Table 1: TIME Control Switch
Position Result
0 1 SEC
1 2 SEC
2 4 SEC
3 VARIABLE
VARIABLE Control Knob
The VARIABLE control knob is a potentiometer that adjusts the time interval from less than one second to about seven seconds.
Turn the VARIABLE control knob to MIN for the shortest time interval (less than one second) and turn the knob to MAX for the
longest time interval. The position of the knob is approximately proportional to the time interval. For exam ple, when the knob is
halfway between MIN and MAX, the time interval is approximately 3.5 seconds.
800-772-8700 www.pasco.com
®
Time Pulse Accessory ME-9496
Tim e Pulse
Accessory
tab
tab
1. Put the edge of
the Time Pulse
Accessory into the
notch on the tab.
2. Snap the Time
Pulse Accessory
into the notch on
the second tab..
Fan
Accessory
NOTE: Be sure that the ON/OFF switch
for the Fan Accessory is in the OFF
position before doing the next step.
NOTE: When the TIME control switch is set to “3”, select the time interval by using the VARIABLE control knob.
Turn the knob to MIN for a time interval under one second, and turn the knob to MAX for a time interval of approximately seven seconds. When using the VARIABLE control knob, the time interval will be proportional to the position of the knob. For example, half-way between MIN and MAX is approximately 3.5 seconds.
Tim e Pulse
Accessory
START push
button
TIME control
switch
VARIABLE
control knob
External Input
Port
NOTE: Be sure that the ON/OFF switch for
the Variable Speed Motorized Cart is in the
OFF position before doing the next step.
Operation
Installing and Connecting the Time Pulse Accessory
Fan Accessory (ME-9491)
1. As shown in the figure, mount the Time Pulse Accessory onto
the Fan Accessory by placing one edge of the case of the
Time Pulse Accessory against one of the tabs at the top of the
Fan Accessory. Rotate the case downward and firmly press
the top of the case down to snap the other edge of the Time
Pulse Accessory into the other tab on the top of the Fan
Accessory.
2. Connect the plug of the Time Pulse Ac cessory cable to the External Input Port on the Fan Accessory (just below the ON/OFF
switch). Once the plug is connected, flip the ON/OFF switch to ON.
Select the “0=1 SEC” time interval setting with the TIME Control Switch and gently press the START push button. After a two
second delay, the Fan Accessory should turn on automatically and run for one second before turning off automatically.
Test the other time intervals on the TIME control switch in the same manner.
Variable Speed Motorized Cart (ME-9781)
1. As shown in the figure, mount the PASCO ME-9496 Time
Pulse Accessory on the Variable Speed Motorized Cart by
inserting the studs on the bottom of the Time Pulse Accessory into the holes in the accessory tray of the cart
.
2. Connect the plug of the Time Pulse Accessory cable into the
External Input Port on the Variable Speed Motorized Cart.
Once the plug is connected, flip the ON/OFF switch on the cart to ON.
3. Select the “0=1 SEC” time interval setting with the TIME Control Switch and gently press the STAR T push button. After a two
second delay, the Motorized Cart should turn on automatically and run for one second before turning off automatically.
Test the other time interval settings on the TIME control switch in the same manner.
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