LumaSense Technologies ISR 320 - Manual (Page 22)

ISR 320 Manual Settings / parameter descriptions 22
4.11 Sub Range
You have the opportunity to choose a sub range (minimum span 50 °C) within the basic
measuring range of the pyrometer. This sub range corresponds to the analog output.
Example: Range 700…1700 °C, Sub Range 925…975 °C.
The sub range setting also affects the maximum value storage when the Clear Peak Memory
t
clear
is set to AUTO. For more information on the t
clear
AUTO setting, refer to section 4.5 .
Note: Settings for Sub Range: Any range adjustable within the temperature range
with a minimum span of 50 °C.
4.12 Device 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: Settings for Device Address:
Individual Addresses: 00…97 Global Addresses: 98, 99
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).
4.13 Baud Rate
The transmission rate of the serial interface in Baud (Bd) is dependent on the length of the
cable. A maximum cable length for 19200 Bd with RS485 is 2 km. The baud rate is reduced by
50% if the transmission distance is doubled.
Note: Settings for Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, or
115200.
4.14 Pyrometer Internal Temperature
The internal temperature of the pyrometer can be read through the PC interface using the
InfraWin software or by using the UPP Data format commands. It is a few degrees higher than
the ambient temperature due to the heat generated by the electronics.
4.15 Limit Switch (SP1)
The pyrometer is equipped with a switch contact (opto relais; max. 50 V DC, 0.2 A; max. power
300 mW), controlled from the measuring signal. The contact is activated with:
Close above: The contact closes (switches to ground), if the temperature entered in the “SP1“
box is exceeded. If the temperature falls below that value minus the hysteresis
the contact opens (a hysteresis between 2 and 20°C can be set to avoid
oscillating of the switch in the switch point).