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FocusMonitor FM+
7.2.5
Connecting a FM+ to a laser power meter
NOTICE
Damage / Destruction of the device due to overvoltage
When disconnecting the electrical lines during operation (with the supply voltage applied), voltage
peaks occur which can destroy the communication modules of the devices.
X Disconnect the supply voltage from the device before disconnecting the bus cables.
For sufficient absorption of the radiation after passing through the measurement zone, you can use the
PRIMES laser power meters PM 48/100, PM+ HP15 or EC-PM.
The water-cooled PRIMES laser power meters will measure the current laser power and provide additional
information on the flow rate and temperature of the cooling water.The laser power meter is connected via
the PRIMES bus (RS485 interface). The pin assignment of the RS485 interface can be found in chapter 8.4
„PRIMES bus RS485" on page 25.
When connecting several devices, always use only one PRIMES power supply.
PRIMES
power supply
Fig. 7.10:
Exemplary connection of a FM+ to a laser power meter PM 48
Revision 08 EN - 08/2023
PC
LAN
or
Ethernet-cable
RS485-cable
plug/plug
23
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