MSP4 / MSP5 / MSP6
P. / 7
EM-4854 Rev.8
MINI-TOP ELECTRONIC ACTUATOR
(linear type)
MODEL
MSP4/MSP5
/MSP6
INSTRUCTION MANUAL
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
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PACKAGE INCLUDES:
Mini-Top ........................................................................ (1)
2.5 mm Hexagon key wrench (with option /S) ............ (1)
The Mini-Top is not provided with a yoke or other compo-
nents required for mounting it to a valve. They are to be
provided by the user.
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MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
POINTS OF CAUTION
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CONFORMITY WITH EC DIRECTIVES
• This equipment is suitable for use in a Pollution Degree
2 environment and in Measurement Category II, with the
maximum switching voltage of 125V. (Applicable to the
full-open/-closed signal only)
Prior to installation, check that the insulation class of this
unit satisfies the system requirements.
• Altitude up to 2000 meters
• The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con-
form to CE requirements. Failure to observe these re-
quirements may invalidate the CE conformance.
• Install lightning surge protectors for those wires con-
nected to remote location. Refer to “LIGHTNING SURGE
PROTECTION” section below.
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POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
Rating 100 – 120V AC: 90 – 132V, 47 – 66 Hz, approx. 25VA
Rating 200 – 240V AC: 180 – 264V, 47 – 66 Hz, approx. 25VA
Rating 24V DC: 24V ±10%, approx. 0.6A
• A fuse of the following rating is incorporated: 250V/1A
time delay.
• A rush current 1.5 times as high as the above ratings can
flow at the startup.
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GENERAL PRECAUTIONS
• Remove the power supply to the actuator before wiring to it.
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INSTALLATION
• Indoor, or outdoor where the MSP is NOT exposed to di-
rect sunlight
• Ambient temperature: -5 to +55°C (23 to 131°F)
• Operating humidity 30 to 85% RH (non-condensing)
• Vibration: 0.5 G max.
• Install the MSP where you can reach for maintenance.
Observe at the minimum of 15 centimeters (6 inches)
above the cover.
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OUTDOOR USE
• When installing the MSP outdoor or where it is exposed to
rain or water drops, be sure to fasten the cable connector
tightly and leave a slack of the cable.
• Do not mount the MSP in such direction that the output
stem or cable connector is at the top of the MSP unit.
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ELECTRICAL CONNECTION
• With DC power type unit, power supply and signal lines
are not isolated. Use an isolator if needed.
• When you use a cable other than the standard 1-meter
cable equipped with non-terminal box type unit and its
extension distance is longer than that, use shielded cables
for signal line, or install signal cables in a separate piping
from power supply cables.
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LIGHTNING SURGE PROTECTION
• In order to protect the unit from lightning surges entering
through cables, use of appropriate lightning surge protec-
tors are recommended. For 24V DC power supply line,
choose a surge protector with its maximum surge voltage
40V or less between lines. Recommended M-System mod-
el: MDP-D24.
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PID CONTROLLER
• Choose PID parameters carefully so that the MV remains
as stable as possible. Unstable operations shorten the life
of actuator and valve.
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O-RING, GASKET
• When replacing the actuator cover after adjustments,
check that the O-ring is securely placed in the groove.
• When replacing the terminal box cover, check that the
gasket is in place.
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YOKE DESIGN
• When a foreign object is caught in the valve, a thrust 2
times greater than the maximum rating could be gener-
ated. Leave enough strength for mechanical components
such like the yoke and stem.
• If the MSP is used on a steam line in temperature control,
it is possible that the MSP’s temperature rises higher than
the ambient temperature due to transmission or radiation
via the steam piping, even when the ambient temperature
is within allowable range.
Use a longer yoke to increase heat dissipation and apply
insulating material.
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AND ....
• DO NOT loosen the screw fixing the potentiometer stem.
Loosening it could cause a malfunction.
• DO NOT step onto the actuator. DO NOT rest a heavy
object on or against it.
Cable Connector
DO NOT Pull Tightly
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
SENTRONIC
AG
