© 1997 LMI Milton Roy - All Rights Reserved
Printed in USA
Specifications subject to change without notice.
MP-400D Pulse Divider (Counter)
MP-500M Pulse Multiplier (Batch Signal Converter)
Switch Input (MP-400D & MP-500M):
A. ‘On’ Resistance: 5K ohms max.
B. ‘Off’ Resistance: 100K ohms min.
Min. switch closure time (MP-400D & MP-500M)
low impedance state (on) :
10 milliseconds
Min. switch opening time (MP-400D & MP-500M)
high impedance state (off) :
20 milliseconds
Max. count speed or frequency (MP-400D):
1800 pulses per minute (30Hz)
Max. batch count or multiplier (MP-500M):
1023 pulses
Pulse output rate or speed (MP-500M):
fixed, 100
+
2 pulses per minute
INSTALLATION
1.
The MP-400D and MP-500M Signal Converters may be preset before connection to the pump
or signal source, or may also be adjusted after connection.
2.
Open the MP-400D or MP-500M cover by removing the four screws that hold the back cover on.
3.
Follow the instructions inside the cover to set your Signal Converter. Use a pencil or ball point
pen to slide the switches.
4.
Replace the cover and the four screws.
5.
Insert the 4-pin connector into the socket on your LMI Series A7, B7 or C7 Metering Pump.
The socket is located on the bottom right under the pump control panel.
6.
Connect the other cable to your input signal source.
Polarity is: white = po); black = negative (-).
7.
Switch your pump to
EXTERNAL
. The count, division or multiplication will begin immediately.
Switching the pump to
OFF
or unplugging the pump will reset the count.
MP-400D or 500M Typical Installation
MICROPACE
NOTE: Switch or transistors must be capable of switching 2 milliamperes @ 15V DC.
Combining additional MICROPACE™ units will increase the milliampere demand.
METHODS OF TRIGGERING MP-400 AND MP-500M
3. PNP Transistor
Base goes low
4. Opto Isolator
MICROPACE
MP-400D
OR
MP-500M
MICROPACE
MP-400D
OR
MP-500M
+ WHITE
- BLACK
MICROPACE
MP-400D
OR
MP-500M
+ WHITE
- BLACK
MICROPACE
MP-400D
OR
MP-500M
+ WHITE
- BLACK
1. Switch Closure
switch closing trigger
2. NPN Transistor
Base goes high
Micropace is a trademark of Liquid Metronics, Inc.
(866) 433-6682 • (281) 359-8538 • [email protected] • www.novatech-usa.com
