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1.6 Connector Description
3
2
1
Fig. 1-2 1917-R Top Panel
1- PROBE INPUT JACK:
The 1917-R uses a DB-15 female connector to mate with the detectors. See
section 2.1 for compatible detector list.
2- 0 to 1 VOLT ANALOG OUTPUT:
For monitoring laser average power by using external equipment such as a chart
recorder, a computer with an analog interface, a voltmeter, etc.
The output signal is the amplified power detector response, in fast or slow mode.
The 1 V value corresponds to the full scale reading of the selected range. That
provides the best signal-to-noise ratio. The measured power is then related to the
output voltage and to the selected range according to the following equations:
selected Range ofMax
outputVPower
For example:
0.25 V corresponds to 2.5 Watts on the 10 W range
0.10 V corresponds to 30 milliwatts on the 300 mW range
Specifications:
Maximum output voltage: 1 V
Output impedance: 2.5 k
Connector type: Female 3.5mm mono jack
3- EXTERNAL POWER SUPPLY INPUT JACK:
Input voltage required: 9 VDC/100 mA. The external power supply does not
charge the batteries; it allows the use of the monitor without batteries, with dead
batteries or simply to avoid discharging the batteries inside the monitor.
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