RHEONIK RHE28, Installation & Start?Up Manual

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RHE28 Installation & Startup Guide – Doc. No. 8.2.1.07 – Ver. 1.31 6 / 43
Black: power supply
Blue: connection to RHM and 4-20mA pressure sensor (if present)
Green: I/O signals
The standard plugs are a push-in wire connection type. Solid wires and stranded wires with end
sleeves can be connected by simply pushing the wire into the opening. For connecting stranded
wires without prepared ends (crimp ferrules, etc.), it may be necessary to press down and hold
the cable release operator while inserting the wire. To disconnect a wire, simply press down the
cable release operator and withdraw the wire while it is held down. Other types of connector,
such as those with screw terminals may be available and can also be used. RHE28 units are
delivered with 2 x M16 cable glands and 2 x M25 blind covers as a standard.
Interconnecting RHE/RHM
Only interconnecting cable (ARHE-Cx cable) supplied by Rheonik should be used to connect an
RHE to an RHM. Cable not supplied by Rheonik may lead to a poor performance of the Coriolis
mass flow meter.
Table 1: Overview RHM electrical connection types
RHM electrical
connection type
Junction box / terminals Section
JM, SM aluminium, stainless steel / 11 3.2.1.1
TM - / PTFE cable with 9 wires + shield 3.2.1.2
JO aluminium / 12 3.2.1.3
legacy type aluminium, stainless steel / 9 3.2.1.4
3.2.1.1 RHM Electrical Connection Type JM & SM (11 Terminals)
Table 2: RHE28 Wiring Plan for RHM Connection Types JM, SM
RHM Terminal Cable RHE28 Terminal
No. Name
Wire
Color
Function No. Name
1 DRV H Brown Drive Coil high 1 DrvH
2 DRV L Blue Drive Coil low 2 DrvL
3 PT P Red Temperature Sensor Pipe 3 PtP
4 PT G Pink Temperature Sensors GND 4 PtG
5 PT T Orange Temperature Sensor Torsion 5 PtT
6 PUA H Yellow Pick Up Coil A high 6 PkAH
7 PUA L Green Pick Up Coil A low 7 PkAL
8 PUB L Grey Pick Up Coil B low 8 PkBL
9 PUB H White Pick Up Coil B high 9 PkBH
10
1
PE (yel/grn)
Shield 10 PE
11
1
PE C (yel/grn)
1
The RHM has 2 terminals for the connection of the cable shield. One is connected directly to PE, the other via a
1nF capacitor (PE C).
The best protection against RF EMI is achieved if the cable shield is connected at both ends. In installations with a
long interconnecting cable between RHE and RHM, significant potential difference between the PE at the RHE and