M-system MDP-RB Instruction Manual

INSTRUCTION MANUAL
LIGHTNING SURGE PROTECTOR FOR RTD USE
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.
■ PACKAGE INCLUDES:
Surge protector ....................................................................(1)
DIN rail mounting adaptor* ...............................................(1)
Screws for DIN rail mounting (M4 × 8)* ...........................(2)
*Included with option code /A33
■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
LIMITATION APPLICABLE TO M-RESTER
The M-RESTER will protect electronics equipment from
damage caused by lightning by absorbing most of the
surge voltages.
However, M-RESTER may not be effective against cer-
tain extremely high voltages caused by a direct or almost
direct hit by lightning.
M-RESTER must be installed according to this installa-
tion / instruction manual.
CAUTION (DISCHARGE CAPACITY)
The discharge capacity
of this unit has been in-
creased to 5000 Amps.
However, using an older
style base socket with
any upgraded head ele-
ment could decrease the
overall effectiveness of
the unit.
The upgraded version
element and socket are
distinguished by blue labels affixed to them. If you are re-
placing the head element only, be sure to check the label
color of the base socket that is already installed.
GENERAL
■ FUNCTION & FEATURES
• Designed specifically for resistance temperature detector
(RTD) circuits
• Protecting RTD and RTD transmitters from damage
caused by surges on the RTD wiring
• Absorbs surges only without affecting instrumentation
signal
• No interruption of signal by unplugging surge protector
element
New Base Label
Blue: 5000A
(Black: 1000A)
New Element Label
Blue: 5000A
(Black: 1000A)
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
MODEL
■ SPECIFICATIONS
Max. continuous
operating voltage (Uc)
Voltage protection level
(Up)@1kV (100A)
Voltage protection level
(Up)@2kV (1kA)
Leakage current ≤ 2μA
@±6V DC
Capacitance @1 MHz
Response time
Max. discharge current (Imax)
Nominal current (IN)
Internal series resistance 10 Ω ±0.1%, 30 ppm/°C (17 ppm/°F)
POINTS OF CAUTION
■ CONFORMITY WITH EU DIRECTIVES
• The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform-
ity.
■ ENVIRONMENT
• When heavy dust or metal particles are present in the
air, install the surge protector inside proper housing with
sufficient ventilation.
• Do not install the surge protector where it is subjected to
continuous vibration. Do not subject the unit to physical
impact.
• Environmental temperature must be within -5 to +55°C
(23 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
■ DIELECTRIC STRENGTH TEST
• Loosen the screw located at the left-center of the element
and remove the element module from the base before
conducting a dielectric strength testing. Otherwise the
element will start discharging at a voltage exceeding the
max. continuous operating voltage (Uc), which can cause
insulation failure of the module.
Be sure to return the element and fasten securely after
the test.
■ AND ....
• We recommend that you keep spare surge protectors so
that you can replace them when necessary.
• Lightning surge can enter not only through signal lines
but also through power supply lines. We recommend that
you also use the surge protectors for power line for suf-
ficient protection.
MDP-RB
LINE TO
LINE TO LINE
EARTH
±6V ±3V ±140V
B – C B or C – A
±32V ±16V ±650V
2 – 3 2 or 3 – 1
±40V ±25V ±800V
2 – 3 2 or 3 – 1
≤ 2μA ≤ 2μA
@±3V DC @±140V DC
B – C B or C – A
≤ 1000 pF ≤ 100 pF
≤ 0.1 microseconds
5000A (8 / 20 μs)
100mA
EM-8114 Rev.10 P. 1 / 3