Parts Supplied - Nvent Raychem Rmm3-Ex-E Bedienungsanleitung

ENGLISH
EN
DE
WARNING: This is an electrical device that must be installed
correctly to ensure proper operation and to prevent frozen pipes,
FR
shock or fire.
If the equipment is used in a manner not specified by the
RU
installation manual, the protection provided by the equipment may
be impaired.
Read these important warnings and carefully follow all of the
installation instructions.
• Component approvals and performance are based on the use
of nVent specified parts only. Do not use substitute parts.
Substitution of components and false installation may impair
safety
• Keep components dry before and during installation.
• Note: Leave these instructions with the end user for reference
and future use.
Conditions of safe use
The RMM3-EX-E and RMM3-24VDC-EX-E are built by
nVent according to the conditions of safe use of all individual
components.
a) The equipment shall only be used in an area of at least
pollution degree 2, as defined in IEC/EN 60664-1.
b) Provisions shall be made to prevent the rated voltage from
being exceeded by transient disturbances of more than 140%.
Description
The nVent RAYCHEM Remote Monitoring Module (RMM3) is part
of the nVent RAYCHEM NGC control and monitoring system.
The RMM3 accepts inputs from up to 8 RTDs (3 wire Pt 100
temperature sensors) measuring pipe or ambient temperature
in a trace heating system. The RMM3 installed in a fiberglass
enclosure is available in two versions:
1. The RMM3-EX-E is the 115 VAC / 230 VAC RMM3 module
installed in a Fiberglass enclosure.
2. The RMM3-24VDC-EX-E is the 24 Vdc version of the RMM3
module installed in a Fiberglass enclosure.
For technical assistance, call your local nVent representative or
the nVent service center listed on the last page.
Parts (supplied)
• Pre-installed in RMM3 / RMM3-24VDC Trace-heating Remote
Monitoring Module are the following:
– WAGO 280-907/999-950 IECEx / ATEX Zone 1 / Zone 2
Certified cage clamp terminals, suitable for solid and
stranded wires from 0.08 to 2.5 mm², strip length 8-9 mm.
– Terminals of the RMM3 / RMM3-24VDC Module are
suitable for:
LJ Solid wires with cross-section between 0.2 and 4.0 mm²
LJ Stranded wires with cross section between 0.2 and 2.5 mm²
LJ Torque of 0.5 Nm to 0.6 Nm
LJ Strip length 8 mm
• An enclosure with tool removable door or cover that provides a
degree of protection not less than IP 54 in accordance with EN
IEC 60079-7
• 12 Ex e M20 glands for power cable (6 to 12 mm cable
diameter) with mushroom stopping plugs
• Replacement fuses
• RMM3-EX-E: Jumper for voltage selection
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4 nVent.com/RAYCHEM
Specifications RMM3-EX-E / RMM3-24VDC-EX-E
RMM3-EX-E supply voltage
(nominal):
RMM3-24VDC-EX-E supply
voltage (nominal):
Power consumption RMM3
module:
Ambient operating range T
amb
RMM3-EX-E
RMM3-24VDC-EX-E:
Relative humidity:
Altitude:
Environment:
Protection:
Temperature sensors:
Temperature coefficient:
Sensor connections:
Sensor input wire connections: 3 x 1.5 mm
RS-485 connections:
Temperature measurement
range:
Replaceable fuse:
Installation materials (not supplied)
Fasteners: Screws for 6.5 mm holes for mounting enclosures
Pt 100 temperature sensors (RTDs):
• MONI-PT100-NH / MONI-PT100-260/x, Temperature sensors
for non-hazardous areas with M20 cable gland
• MONI-PT100-EXE, Temperature sensor for hazardous areas
Modbus communication settings
The RMM3 module has by default the following communication
parameters
Protocol
Modbus address
Baud rate
Bits
Parity
Stop bits
Tx delay
115/230 Vac, jumper selectable,
50/60 Hz
24 Vdc nominal, min 10 Vdc,
max 30 Vdc
2,5 VA
–40°C to +56°C
–40°C to +58°C
5 to 95%, noncondensing
Up to 2000 m
Pollution Degree 2, Overvoltage
Category II
IP66
3-wire RTD (Pt 100)
per IEC 751-1983 (100 Ω at 0°C)
Can be extended with a 3-core
shielded cable of 20 Ω max. per
conductor, advised maximum
length 150 m (can differ on
proper installation, insulation
and cable shielding)
cable
2
Shielded, single twisted pair,
max. 1200 m
–100°C to +700°C (the range can
differ when used in combination
with NGC-30 or NGC-40
1) T 50 mA/250 V for RMM3:
Littlefuse Series 372 TR5 50mA
part of item 1) 37200500001
2) T 200 mA/250 V for
RMM3-24VDC: Wickmann
part of item 2) 19370-034-K
(FAST BLOW)
Modbus RTU (RS485)
32
9600 Baud
8 bits
no parity
2
5 mS