AE Techron 7800 Series Operation Manual page 29

7800 SERIES OPERATION – SECTION 5
5.1.5 Remote Monitoring of Temperature
Using the SIM-BNC Interlock connector located on
the back panel of the amplifier, you can remotely
monitor the temperature at the heat-sinks of the
amplifier.
Remote Monitoring of Temperature
Purpose: Use a voltage meter to monitor tempera-
ture at the heat-sinks.
Method: Connect a voltage meter to monitor the
temperature at the heatsinks of the amplifier. Con-
nect across PIN 9 (TEMP MONITOR) and PIN 10
(Sampled Common). See Figure 5.7.
Signal Type: DC
Level: (VDC * 100) - 273 = degrees Celsius
IMPORTANT: This circuit has a 1K build-out resis-
tor. Make sure the monitor function has sufficient
impedance to avoid accidentally influencing status.
Most digital multimeters have an input impedance
of 1 megohm and would work well for this applica-
tion.
Blanking Circuit Activation
Purpose: Activate the blanking circuit that shuts
down the amplifier output stage in less than 10 µs.
Method: Build a switchable circuit using an exter-
nal, isolated 5V power supply that can apply a +5V
signal to PIN 8. Connect across PIN 8 (Blanking)
and PIN 18 (Blanking Return). See Figure 5.8.
Signal Type: DC
Level when Asserted: 5-6 Vdc
Level when Deasserted: 0 Vdc
96-8007105_07-14-23
Figure 5.7– Remote Monitoring of Temperature
Information subject to change
Figure 5.8 – Blanking Activation
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