Lumasense-technologies IGA 320/23-LO Manuel d'utilisateur télécharger pdf (Page 22)

IGA 320/23-LO Operating Manual Settings / parameter descriptions  22

4.10 Analog output

The analog output has to be selected according to the signal input of the

connected instrument (controller, PLC, etc.).

4.11 LED targeting light

If the pyrometer is supplied with power, the LED targeting light is automatically active. Once

connected, it can be adjusted even if the targeting light is off. Independent of this setting, the

targeting light can be switched on or off (targeting icon

) using the software InfraWin.

4.12 Subrange

You have the opportunity to choose a subrange (minimum span 51 °C) within the basic

measuring range of the pyrometer. This subrange corresponds to the analog output. Reduction

of the temperature range increases the accuracy of the analog output.

Also when setting the subrange, it is possible to fulfill the requirements of the “auto” clear

mode of the maximum value storage (see 4.9).

4.13 Ambient temperature compensation

The compensation of the ambient temperature can be set for temperatures

within the basic measuring range. This compensation is only used for very

few special applications. The standard setting of this parameter is “auto”,

because the temperature of the air around the pyrometer is normally the

ambient temperature of the measured object. Should the measured object be

placed in an area with a higher wall temperature (e.g. inside a furnace), the measurement might

be falsified (probably too high temperature indication). This influence can be compensated by

presetting the ambient temperature of the object (presetting within the measuring range of the

instrument).

After switching over to “man” the corresponding data field T

amb

is activated so that the ambient

temperature value can be entered.

Attention: It has to be considered that this method only improves the results if the

ambient temperature at the place of the measured object is always constant and the

emissivity is well known.

4.14 Address

When connecting several pyrometers to one serial interface with RS485, it is

necessary for each instrument to have its own device address for

communication purposes. First, it is necessary to connect each instrument

separately to give it an address. After that, all instruments can be connected

and addressed individually.

Note: Only via own communication program with interface command (not

possible with InfraWin, because InfraWin automatically detects a connected

pyrometer): If parameters should be changed simultaneously on all pyrometers, the

global Address 98 can be used. This allows you to program all pyrometers at the

same time, regardless of the addresses that have already been assigned. If the address

of a pyrometer is unknown, it is possible to communicate with it using the global

Address 99 (connect only one pyrometer).

Setting

0 ... 20 mA

4 ... 20 mA

Setting

auto

00 °C (32 °F)

70 °C (158 °F)

Settings:

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 43 44

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Lumasense-technologies IGA 320/23-LO Manuel d'utilisateur Page 22

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