ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
1. Signal Channel
Voltage Input Mode: Single-ended or Differential
Full-scale Sensitivity:
1 nV to 1V in a 1-2-5 sequence
1 fA to 1 µA
Current Input: 106 or 108 V/A
Impedance:
Voltage: 10 MΩ//25 pF, AC or DC coupled
Current: 1 kΩ to virtual ground
C.M.R.R: > 100 dB to 10 kHz, decreasing by 6 dB/oct
Dynamic Reserve: > 120 dB
Gain Accuracy: 0.2% typ, 1% max
Voltage Noise: 9 nV/√Hz at 997 Hz
Current Noise:
0.13 fA/√Hz at 97 Hz
0.14 fA/√Hz at 997 Hz
2. Reference Channel
Input:
Frequency range: 1 mHz to 120 kHz
Reference input: TTL or Sine
Input impedance: 1 MΩ//25 pF
Phase:
Resolution: 1 µdeg
Absolute phase error: < 1 deg
Relative phase error: < 1 mdeg
Phase noise: (Internal ref.) Synthesized, <0.0001°rms at 1 kHz; (External ref.) 0.005°rms at 1 kHz (100 ms time constant, 12 dB/oct)
Drift: <0.01°/℃ below 10 kHz, <0.5°/℃ above 10 kHz
Harmonic Detection: 2F, 3F, …nF to 120 kHz (n<32767)
Acquisition Time:
Internal ref.: instantaneous acquisition
External ref.: (2 cycles + 5 ms) or 40 ms, whichever is larger
3. Demodulator
Stability:
Digital output: no zero drift on all setting
Display: no zero drift on all setting
Analog output: <5 ppm/℃ for all dynamic reserve settings
Harmonic Rejection: -90 dB
Time Constant:
10 µs ~ 3 ks (<200 Hz)
10 µs ~ 30 s (>200 Hz)
(6, 12, 18, 24 dB/oct rolloff)
4. Internal Oscillator
Frequency
Range: 1 mHz to 120 kHz
Accuracy: 2 ppm + 10 µHz
Resolution: 1 mHz
Distortion:
-80 dBc (f < 10 kHz)
-70 dBc (f > 10 kHz)
Amplitude: 0.10 to 1 Vrms
Accuracy: 1%
Stability: 100 ppm/℃
Output: Sine output on rear panel, and TTL sync output on rear panel
5. Interface: RS-232 and RS-232 to USB interface
6. Inputs & Outputs: CH1 and CH2 Outputs
Function: output X, Y, R, θ
Output voltage: ±5 V full scale, 30 mA max output current
7. Display
Screen: 3.5 inch, 320×240 TFT
Display Types: Numerical form
8. General
Power Requirement:
Voltage: 220 – 240 VAC, 100 – 120 VAC (optional)
Frequency: 50/60 Hz
Power: 20 W
Dimension:
259 (W) × 115 (H) × 320 (D) mm (with feet)
259 (W) × 102 (H) × 320 (D) mm (without feet)
Weight: 3.2 kg
