Operation
EPM1000 User’s Guide
19
Operation
Tutorial
Measuring laser power using a PowerMax
®
thermopile probe is easy with
the EPM1000. It automatically searches for an attached thermopile
probe when powered up. An attached thermopile probe is queried and
the probe's responsivity is automatically programmed into the EPM1000.
Warning: Follow all laser safety procedures. Laser must be blocked or
switched off before beginning this procedure.
Caution: Do not exceed the power/energy density limits for the
thermopile probe as defined in the probe's data sheet.
1. Place the PowerMax
®
probe in the path of the laser
beam in such a way that the beam will strike the
center of the probe surface when power is restored.
Caution: The EPM1000 must be off before connecting or disconnecting
any powered probe such as the PowerMax
®
thermopile probe.
Connecting or disconnecting a probe while the EPM1000 is on will
damage the probe.
2. Connect the detector to the EPM1000 rear panel 25-
pin Smart Probe connector, using the probe's cable.
3. Turn the EPM1000 on. If the EPM1000 isn't in
normal mode, place it into Normal Mode by pressing
4. Switch the laser on or unblock the beam. Verify
proper beam alignment on the probe surface.
5. Adjust the range up or down by pressing or
respectively, until 30 to 300 counts appear on the
digital display. A display reading of OL indicates the
selected range is too low.
6. Block the beam and wait for the EPM1000 display to
settle. Press to zero the display.
7. Unblock the beam and wait for the EPM1000 to
settle on the new, more accurate reading. If the
probe responds too slowly to power changes,
activate Display Speedup and the EPM1000 will
display an estimate of the final value within a few
seconds.
Thermopile
! Warning
!
Caution
!
Caution
ZERO
W
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