NT216C GB1
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5 - CONVERTER ASSEMBLY
Mechanical fittings
> Use a location that offers preferential conditions for easy access and vision.
> Avoid mounting on supports exposed to vibration.
> Avoid extreme weather conditions and direct exposure to the sun.
> Wall fitting is done by two M5 screws for industrial enclosures, or by using our support
and fixing on a
2 ‘’ vertical tube with our Ex d version.
Electrical connections
: Refer to the diagram on the previous page.
> Power supply: Connectors BR 1
– Use flexible cables with section 0.5 to 1.5 mm2.
- The recommended source is DC, 10 to 30 Volts (60 V on option): 12 / 24 (48).
- Any polarity will do. The required power is less than 2 Watt.
The source may also be A.C. (9 to 18 Volts
– 50/60 Hz) via a transformer.
> RS 232 or 485 digital outputs: BR 2 , terminals 1 to 6 .
- Cable PC-DB9 uses RS 232 with Tx on 2, Rx on 3 and 0 Volt on 5.
-
For a permanent link (logic controller, modem … ) :
. For RS 485 : connect Rx
– to terminal 3 and Tx + to terminal 4
. For RS 232 : connect Tx to terminal 1 and Rx to terminal 2 with common to 5 .
. No need of other connection to validate RS 232. Connect terminals 5 to 6 to validate
RS 485.
>- On/Off outputs - Relays (Static): BR 2, terminals 7 to 10
– multi-pair cables
- Comply with the limits V < 100 V ; I < 0.1 A ; R
ON
= 10 Ohm.
- Each relay Re 1 (terminals 7 & 8 ) or Re 2 ( terminals 9 & 10) will transmit the chosen
status information in the “General Parameters” menu.
> 4
– 20 mA analog outputs: BR 2, terminals 11 to 14 – Multi-pair cables.
- These are independent outputs,
galvanically insulated
in respect to each other, but
also with respect to the other MiniSonic circuits and by default are
passive
and need
to be connected to a receiver supplying the power (30 V max.) to allow a load of more
than 1 kOhm.
- Output No. 1 ( terminals 11 & 12 ) and output No. 2 ( 13 & 14 ) will transmit
magnitudes and ranges of variation as chosen in the “General Settings” menu
concerning Speed of Sound ( output N° 1 ) and Gain ( output N° 2 ) .
- It is possible to carry out internal wiring to allow
active
outputs by associating the
terminal block BR 5 (see diagram) already linked to power supply voltage connected to
BR1, but with the drawback of losing part of the galvanic insulation.
! With a 12 V DC or AC supply, R “loop” is limited to 150 or 200 Ohms.
Attention! If this R loop is too high for the supply, the curent fall down to 4 mA
> Connection to probe(s): BR 4.
BR 3 is normally not mounted and reserved to dual-channel MiniSonic versions
- Use Twin-ax cables (ET1217 & ET1217A) specified by Ultraflux.
- For standard applications, only one cable is used. Connect it to terminals 1, 2, 3.
- To connect a triaxial cable, connect Ext. screen to 1, Int. shield to 2 and wire to 1
- Terminals 4, 5, 6 are reserved for a second probe to be mounted at the opposite of the
first one. They do a single barrier (only one ultrasonic travel) for difficult conditions
- In the EXD version, the shields are stopped and connected in the stuffing boxes and
the conductors will be approximately 15 cm long up to the terminal blocks.
