LumaSense Technologies ISR 320 - Manual (Page 13)

ISR 320 Manual Controls and Installation 13
3 Controls and Installation
3.1 Electrical Installation
The pyrometer is powered by 24 V DC ± 25% (very well stabilized, ripple max. 50 mV). It is
important to ensure correct polarity when connecting the device to the power supply.
To meet the electromagnetic requirements (EMV), a shielded connecting cable must be used.
LumaSense offers connecting cables, which are not part of the standard scope of delivery.
The shield of the connecting cable has to be connected only on the pyrometer’s side. If the
connecting cable is extended, the shield of the extension also needs to be extended. The shield
must be open on the power supply side (switch board), to avoid ground loops.
The connecting cable has wires for the power supply, interface, analog output and external LED
switch via contact. The cable includes a short adaptor cable with a 9-pin D-SUB connector. This
connector may be used in combination with the RS485 to USB adaptor.
Attention: When connecting the power supply, ensure the polarity is correct.
Once the instrument has been connected to the power supply, it is immediately ready for use. It
needs to run for approximately 15 to 30 minutes before achieving full accuracy. The instrument
can be switched off by interrupting the power supply or unplugging the electrical connector.
3.1.1 Pin assignment of the connector
Pin Color Function
1 white + 24 V power supply
2 brown 0 V power supply
3 green + Iout analog output
4 yellow – Iout analog output
5 grey Switches on and off LED targeting light (via push
button) (bridge to +24 V)
6 blue switch contact (reference point 0 V)
7 violet A1
8 black B1
7
red/blue A2 (bridge to A1)
8 gray/pink B2 (bridge to B1)
orange Screen only for cable extension, don't connect at
the switchboard
8-pin connector
Pin assignment
(view of the connector pins)
2
3
4
5
1
7
6
8