The ACH-C can provide chopping rates ranging from 4 Hz to 5000 Hz with the use of two supplied chopper blades. The chopping frequency is measured by an internal crystal-controlled frequency counter and displayed by means of a 4 digit, 0.56" (14 mm) high, green LED display. The display update rate is once per second. Two ranges are provided: 4 to 500 Hz and 40 to 5000 Hz. A TTL/CMOS compatible phase reference signal is provided for use with lock-in amplifiers or other ancillary test equipment. Attachment to the controller is made via a ten foot (3.6 m) coiled modular cable that is detachable at both ends. > Frequency Range 4.0 to 500 Hz (3 slot blade) 40 to 5000 Hz (30 slot blade) Frequency Readout Accuracy: 0.1% of setting 0.1 % of setting / hour Frequency Stability: 1 Hz > 0.01% of setting / hour 2 (Internal Clock) Frequency Stability: 0.1% of setting / hour 2 Hz (External DC Source) Phase Jitter: 0.1% peak-to-peak, 3 slot blade1 % peak-to-peak, 30 slot blade Settling Time to Lock: < 5 seconds for full scale change < 1 second for 10% change External Frequency Input (Hz): TTL/CMOS Compatible, 40 to 5000 External Voltage Control Input: 0 - 4 VDC takes unit through entire speed range Ext. Voltage Input Impedance: > 100 K Display: 4 Digit LED, Green 0.56 in., (14 mm) Height Operating Temperature: 0 - 40 Frequency Range of 4 to 5000 Hz. Օ Digital display Mounts directly to LSH Lamps and TRIAX series spectrometers Օ Compact design can be combined with AFW-C6P filter wheel Use with lockins and DSS Detectors in low light applications. C Size: Controller: 2.6" H x 6.5" W x 8.5" D Head: 5Ք H x 4.75 W x 1Ԕ D (2.25 for motor) Weight: 5 lbs, (2.25 kg) In the USA: In France: > Jobin Yvon Inc 3880 Park Ave, Edison, New Jersey, 08820 USA Tel: (732)-494-8660 Fax: (732)-549-9309 Email: Jobin Yvon SA 16-18 rue du Canal 91165 Longjumeau cedex France Tel: (33) (0) 1 64.54.13.00 Fax: (33) (0) 1 69.09.93.19 China : 86-10-68313388 Germany : 89/46.23.17-0 Italy : 2/57.60.30.50 OSD @jyhoriba.com Japan : (81)3-5823-0140 U.K .: 020-8204-8142 > P/N : OSD-0010 REV.A