Description
|
QCM200 Specifications |
|
| Frequency Measurement | |
| Frequency display | |
| Resolution | 0.01 Hz (10 second gate) 0.1 Hz (1 second gate) 1.0 Hz (0.1 second gate) |
| Gate time | 0.1 s, 1 s, 10 s, user-selectable |
| Measurement (using internal timebase) | |
| Stability | <4 × 10-9 Allan Variance (typ.) |
| Accuracy | ±1.5 ppm |
| Analog output | |
| Δf output | ±10 V full scale (20-bit) |
| Ranges | ±200 kHz, ±100 kHz, ±50 kHz, ±20 kHz, ±10 kHz, ±5 kHz, ±2 kHz |
| Frequency output | |
| Frequency | 5 MHz (nominal) |
| Level | TTL (square wave) |
| Source impedance | 50 Ω |
| Ext. timebase input | |
| Frequency | 10 MHz |
| Level | 1 Vpp (nominal) |
| Resistance Measurement | |
| Resistance display | |
| Range | 0 to 5000 Ω |
| Resolution | 5 digits: 0.001 Ω for R < 100 Ω 0.01 Ω for 100 Ω ≤ R < 1000 Ω 0.1 Ω for 1000 Ω ≤ R < 5000 Ω |
| Conductance output (Vc) | |
| Resistance | R = 10,000 x (10-Vc/5) – 75 Ω |
| Resistance range | 0 to 5000 Ω |
| Voltage level | 0 to 10.625 VDC, log scale |
| Impedance | 1 kΩ |
| Capacitance Cancellation | |
| Range | 10 pF to 40 pF (20 pF nominal) |
| Limit | 0.01 pF |
| Physical | |
| Analog connectors | BNC |
| Interface | RS-232, 9600 baud |
| Dimensions | 10.625″ × 2″ × 7″ (WHL) |
| Crystal holder | |
| Material | Holder: Kynar®, O-ring: Viton® |
| Cable type, length | Cat-5, 3 ft. |
| Dimensions, weight | 10.6″ × 2″ × 7″ (WHL), 2 lbs. |
| Operating temperature | 0 °C to 40 °C |
| Power | 15 W, 100/120/220/240 VAC, 50/60 Hz |
| Warranty | One year parts and labor on defects in materials and workmanship |
| Quartz Crystals (polished) | |
| Frequency | 5 MHz, AT-cut, plano-plano |
| Diameter | 1 inch |
| Electrodes | Cr/Au (Ti/Au, Ti/Pt opt.) |