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Frequency

15 Hz to 3000 Hz

outer sector

150 Hz to 3000 Hz

inner sector

15 Hz to 300 Hz

Control

manual

Digital push-button

external

Application of 0.5 V to 10 V sine or squarewave, 150 Hz to 3000 Hz to Sync In BNC connector

Internal Frequency

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

150 to 500 Hz

blade only: 0.5%; blade + electronics: 1.5%

500 to 3000 Hz

blade only: 0.5%; blade + electronics: 1.0%

inner sector

15 to 50 Hz

blade only: 0.5%; blade + electronics: 1.5%

50 to 300 Hz

blade only: 0.5%; blade + electronics: 1.0%

Lock indication

Bicolor LED, showing Red when unlocked and Green when locked

Settling Time

7 s nominal at 1 kHz from switch-on;
9 s nominal for frequency change from 150 to 3000 Hz;
30 s nominal for frequency change from 3000 to 150 Hz

Outputs

Sync Out 1

10 V pk-pk squarewave at outer sector chopping frequency, 150 - 3000 Hz

Sync Out 2

10 V pk-pk squarewave at inner sector chopping frequency, 15 - 300 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