Lumasense-technologies ISR 12-LO/GS Manual de usuario descargar pdf (Pagina 9)

IMPAC pyrometers ISR 12-LO/GS

4.1 Pin assignment for the male socket on the bottom side of the pyrometer

Pin Color Indication

K white + 24 V power supply (or 24 V AC) (12 ... 30 V)

A brown 0 V power supply

L green

+ I

outp.

analog output

B yellow

– I

outp.

analog output

H gray external switch for targeting light (bridge to K)

J pink

see 4.1.1: output for operating mode contact,

external clearing of maximum value storage,

lens contamination monitoring or extern hold

G red DGND (Ground for interface)

F black RxD (RS232) or B1 (RS485)

C violet TxD (RS232) or A1 (RS485)

D gray/pink RxD (RS232) or B2 (RS485) (bridge to F)

E red/blue TxD (RS232) or A2 (RS485) (bridge to C)

M orange

Screen only for cable extension,

don’t connect at the switchboard

4.1.1 Connector pin J

The co

nnector pin J can be used for 4 different functions:

1) Operating mode contact: During the warm-up of the pyrometer (after connection to the power supply,

the LED display on the converter indicates “7777”) pin J is connected to the power supply voltage. This volt-

age is connected by a relays switch (max. continuous current 0.4 A) to pin K (power supply voltage). This

relays switch opens when the warm-up is finished and the pyrometer is in operating mode. For that reason

this pin can be used as operating mode contact.

2) External clearing of the maximum value storage: When the pyrometer is in operating mode, pin J can

be used for external clearing of maximum value storage (see 8.4). To

clear the maximum value storage,

connect pin J for a short time to pin K (power supply voltage).

The function “external clearing” is activated with the following conditions:

• Warm-up is finished (no display “7777“)

• The clear time is set to “extern“ (see 8.4, 9.7).

•

The lens contamination monitoring is switched off. This can be done via software InfraWin in “color-bar“

window. The warning level “dirty window” must be set to 0% (see 9.8).

3) Len

s contamination monitoring system: The pyrometers are equipped with a contamination monitoring

system. Contamination of lens or sighting window or dust in the sighting path of the pyrometer can interfere

the signal in such a high level that a correct temperature measurement will be impossible (this can also hap-

pen if the object is smaller than the spot size of the pyrometer). To avoid wrong measurements in advance, a

warning signal can be set to a certain contamination level. If contamination reaches this level (or at a certain

too low signal level), a built-in relays (max. continuous current 0.4 A) connects pin J to pin K (power supply

voltage). The setting of the switch level (0 … 99%) can be done via software InfraWin in “color-bar“ window.

If the warning level “dirty window” is set to 0% (see 9.8) the lens

contamination monitoring system is

switched off and pin J has the function “external clearing” of maximum value storage (factory setting).

The lens contamination monitoring system is activated with the following conditions:

• Warm-up is finished (no display “7777“)

• The clear time is not set to “extern“ or “hold” (see 8.4, 9.7).

•

The pyrometer is operating in “2-color mode” (see 8.5, 9.7)

4) Extern Hold: Whe

n the hold function mode is activated the current pouring stream temperature (or the

current temperature reading if the instrument is not in pouring stream mode) is frozen as long as J and pin K

are connected (see 8.4 clear time of the maximum value storage).

G F E

Connector

Pin assignment

(side of male inserts)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 59 60

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