Operation |
|
|
Frequency |
55 Hz to 1500 Hz |
|
outer sector |
90 Hz to 1500 Hz, 18 apertures, f1 |
|
inner sector |
55 Hz to 917 Hz, 11 apertures, f2 |
|
sum |
145 Hz - 2417 Hz, f1 + f2 |
|
Control |
|
|
manual |
Digital push-button |
|
external |
Application of 0.5 V to 10 V sine or squarewave, 90 Hz to 1500 Hz to Sync In f1 BNC connector |
|
Internal Frequency |
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|
accuracy |
±20 ppm at 25 °C |
|
stability |
±30 ppm/ °C (range -10 °C to 60 °C) |
|
Jitter (measured pk-pk and presented as a % of a full cycle) |
|
|
outer sector |
|
|
90 to 140 Hz |
blade only: 0.2%; blade + electronics: < 6% |
|
140 to 1500 Hz |
blade only: 0.2%; blade + electronics: <1.5% |
|
inner sector |
|
|
55 to 100 Hz |
blade only: 0.2%; blade + electronics: < 8% |
|
100 to 917 Hz |
blade only: 0.2%; blade + electronics: <2.0% |
|
Lock indication |
Bicolor LED, showing Red when unlocked and Green when locked |
|
Settling Time
|
7 s nominal for f1 + f2 = 1 kHz from switch-on; 9 s nominal for f1 + f2 frequency change from 150 to 2400 Hz; 30 s nominal for f1 + f2 frequency change from 2400 to 150 Hz |
Outputs |
Sync Out f1 |
10 V pk-pk squarewave at outer sector chopping frequency (f1), 90 Hz to 1500 Hz |
|
Sync Out f2 |
10 V pk-pk squarewave at inner sector chopping frequency (f2), 55 Hz to 917 Hz |
|
Sync Out f1 + f2 |
10 V pk-pk squarewave at sum chopping frequency (f1 + f2), 145 Hz - 2417 Hz |
|
Connectors |
BNC |
|
Impedance |
10 kW. Note that although the output voltage is 10 V pk-pk, the high output impedance means that the outputs can be directly connected to the Reference Frequency input of any SIGNAL RECOVERY lock-in amplifier without causing problems. |
Power Requirements |
Via power adapter for 110 V AC, 50/60 Hz or 220/240 V AC, 50/60 Hz or external isolated 17 V to 20 V DC or AC rms. supply. State which voltage is required when ordering |
Dimensions |
4" high x 4.8" wide x 1.7" deep (104 mm wide x 122mm wide x 44mm deep) |
Weight |
1 lb (0.45 kg) excluding power supply |