advertisement
http://www.elso.sk
AIM & THURLBY THANDAR INSTRUMENTS
TF960 | TF930 | PFM3000
High performance 3GHz and 6GHz frequency counters
PFM3000 - 3GHz low-cost handheld frequency counter
TF930 - 3GHz bench/portable universal counter with USB
TF960 - 6GHz bench/portable universal counter with USB tti-test.com
aimtti.com | aimtti.co.uk | aimtti.us
TF930/960
- 3GHz and 6GHz bench/portable universal counters with USB
0.001Hz to > 3000MHz or 6000MHz frequency range
Frequency, period, pulse width, duty cycle, frequency ratio and event counting modes
High performance temperature compensated timebase
Reciprocal measurement technique gives superior resolution
High input sensitivity over the full frequency range
High impedance DC coupled input up to 125MHz
Variable trigger threshold and switchable attenuator
Large 10 digit LCD display with annunciators
Operation from built-in rechargeable batteries
Low power consumption gives up to 24 hours operation
Remote control and readback via USB interface
High measurement accuracy
The TF930 and TF960 use a high quality temperature compensated internal frequency reference (TCXO) which has a low aging rate and is stable to within
±1ppm over the full temperature range.
Its short warm-up time allows accurate measurements to be made even under portable battery powered conditions.
An External Reference input is provided and changeover from the internal timebase is automatic when an external reference standard is connected.
High resolution
For frequency, period and frequency ratio functions the instrument uses a reciprocal counting technique to provide high resolution at all frequencies.
Eight significant digits of answer are produced in a 1 second measurement time, nine digits in 10s and ten digits in 100s with a granularity of less than 2 counts in the least significant digit.
Flexible signal conditioning
Input A has configurable coupling (AC or DC), input impedance (1MW or 50W), attenuation (1:1 or 5:1), threshold (fully variable) and active edge, and can be used for frequencies in the range 0.001Hz to >125MHz.
Input B is a nominal 50W input for frequencies in the range 80MHz to
> 3GHz.
Input C (TF960 only) uses a standard N connector and has a nominal 50W input for frequencies in the range 1.8GHz to > 6GHz.
Multiple measurement functions
The TF930 and TF960 can measure frequency, period, pulse width, duty cycle and frequency ratio, as well as event counting (totalise).
Remote control and read-back via USB
The TF930 and TF960 incporporate a USB interface which allows it to be remotely controlled using RS232 protocol via a computer’s USB port.
The remote commands of their predecessor instrument, the TF830, are compatible with the command set.
Battery operation when needed
The TF930 and TF960 operate from internal rechargeable NiMH batteries which give typically 24 hours operating life.
The universal AC charger supplied will recharge the batteries in less than 4 hours and can be used for continuous AC operation.
The instruments can also be powered from a standard USB port.
Ten digit LCD
The high contrast display has ten 12.5mm (0.5”) high digits along with a comprehensive set of annunciators.
These show input configuration and function, measurement time and status, external reference connection, low battery and the units of the measurement which may be Hz, kHz, MHz, ns, us, ms or s.
http://www.elso.sk
PFM3000
- low-cost 3GHz counter
Specifications - TF930/960 http://www.elso.sk
3 Hz to > 3000 MHz in two overlapping ranges
High input sensitivity over the full frequency range
High impedance measurement up to 125 MHz
Reciprocal measurement technique gives superior resolution
Period measurement from 3 Hz to 125 MHz
Selectable measurement time; display hold function
Noise filter for low frequency measurements
Large 8.5 digit display with full range of annunciators
Battery operation; handheld format with tilt-stand
Push-to-measure function with auto power-down
Wide frequency range and high resolution
The PFM3000 offers high sensitivity frequency measurement from 3Hz to more than 3GHz in two overlapping ranges. Period measurement is also provided from 8ns to 330ms.
The PFM3000 uses a continuous reciprocal measurement technique to provide high resolution at all frequencies with rapid update.
It offers high sensitivity across the whole frequency range. A low pass filter can be selected to reduce high frequency signal noise at lower frequencies.
A Large and clear display
Despite its compact dimensions, the PFM3000 incorporates a large 8.5 digit
LCD. Annunciators are provided for measurement function, measurement time, overflow, trigger activity, low battery, and measurement units.
Low power consumption and push-to-measure
Despite its wide frequency range the PFM3000 has a power consumption that enables it to operate for many hours from a PP3 size battery.
A push-to-measure capability gives an instantaneous reading followed by an automatic power down after 15 seconds. This provides greatly extended battery life where continuous monitoring of the signal is not required.
Bench-top use
The PFM3000 has the performance needed for many bench-top applications, and its built-in tilt stand sets the display at a convenient angle.
INPUT SPECIFICATIONS
Input A
Input Coupling: AC or DC
Input Impedance: 1MW//25pF (DC or AC coupled), or 50W (AC coupled only)
Attenuation:
Active Edge:
1:1 or 5:1
Rising or falling, or width high or low
Low Pass Filter: 50kHz cut-off, or None
Frequency Range: 0.001Hz to > 125MHz (1MW, DC coupled)
Sensitivity:
< 30Hz to > 125MHz (1MW, AC coupled)
< 500kHz to > 125MHz (50W, AC coupled).
Sinewave - 15mVrms 30Hz to 100MHz,
25mV to 125MHz at optimum threshold adjustment.
Signal Range: 1MW, DC - 0 to 3.3V (1:1) or 1 to 12V (5:1),
1MW, AC - up to 1Vrms (3Vpp) (1:1) or up to 4Vrms (12Vpp) (5:1)
50W, AC - up to 1V rms above 300kHz
Trigger Threshold: DC coupled - 0 to 2V (1:1) or 0 to 10V (5:1)
AC coupled - Average ± 200mV (1:1) or ± 1V (5:1)
Input B
Input Impedance: 50W (AC coupled)
Frequency Range: <80MHz to >3000MHz
Sensitivity:
Signal Range:
Sinewave - 25mVrms 2GHz to 6GHz
<0dBm recommended, +13dBm (1Vrms) maximum
Input C (TF960 only)
Input Impedance: 50W (AC coupled)
Frequency Range: <1800MHz to >6000MHz
Sensitivity:
Signal Range:
Sinewave - 12mVrms 80MHz-2GHz,
25mV to 2.5GHz, 50mVrms to 3GHz
<0dBm recommended, +13dBm (1Vrms) maximum
External Reference
Input Impedance: >100kW, AC coupled
Frequency:
Signal Level:
10MHz
TTL, 3Vpp to 5Vpp CMOS or 1 to 2Vrms sinewave
Maximum Input Voltage
Input A and Input B: 30Vdc; 30Vrms 50Hz/60Hz reducing to 1Vrms above 1MHz
Note that the inputs will not be damaged if subjected to an accidental short-term connection to a
50/60Hz line voltage not exceeding 250V rms.
MEASUREMENT FUNCTIONS
Frequency
A Input Range:
B Input Range:
Resolution:
Period
0.001Hz (DC coupled) to >125MHz
80MHz to >3000MHz up to 10 digits (see Note) or 0.001Hz
A Input Range:
B Input Range:
Resolution:
8ns to 100s (DC coupled)
333ps to 12.5ns
up to 10 digits (see Note)
Pulse Width Mode (Input A only)
Functions: Width high, width low, ratio H:L (high time to low time) and duty cycle
Pulse Width Range: 40ns to 1000s
Averaging:
Resolution:
Automatic within measurement time selected, up to 50 pulses
20ns for one pulse; up to 1ns or 10 digits with multiple pulse averaging
0.01% for Ratio H:L and Duty Cycle,
Total Count (Input A only)
Count Range:
Minimum Width:
1 to 9 999 999 999
8ns
Frequency Ratio B:A
Resolution: Equal to the resolution of the two frequency measurements,
If the ratio exceeds 10 digits, 6 digits and the exponent are displayed
Measurement Time
Selectable as 100s, 10s, 1s or 0.3s. The instrument displays the average value of the input signal over the measurement time selected, updated every 2s, 1s, 0.5s or 0.3s respectively.
The hardware captures the count values and continues measuring without any dead time.
Resolution
The displayed resolution depends upon measurement time and input frequency. The basic resolution of period is 8 digits for every 2 seconds of measurement time. Frequency resolution is the reciprocal of period resolution. Usable resolution can be reduced by noise at low frequencies.
Accuracy
Measurement accuracy is timebase accuracy + measurement resolution + 2 counts.
TIMEBASE
Measurement Clock: 50MHz
Internal Reference: 10MHz TCXO with electronic calibration adjustment (> +/- 8ppm)
Temperature Stability: Better than ± 1ppm over rated temperature range
Initial Error:
Ageing Rate:
< ± 0.2ppm at 25ºC
<± 1ppm/year
OPERATING FACILITIES
Noise Filter
The Filter key controls a low pass filter, with a cut-off frequency of about 50kHz, to ensure more stable readings at low frequencies.
Specifications TF930/960
(continued)
& PFM3000
Hold
Pressing the Hold key will stop further measurements being made and the current measured value will remain in the display, with the Hold indicator on, until the Hold key is pressed again. A long press on the Hold key clears old data and restarts the measurement.
Intelligent Power Switching
The unit automatically selects the best available power source of AC adaptor, USB or battery.
Intelligent switching avoids discharging the battery overnight when operated from externally switched AC power.
A press-to-measure facility allows a quick measurement to be made by pressing a function select key which will power the instrument up in the corresponding function. The instrument will automatically switch off 15 seconds after the last key-press.
Signal Activity Indication
Dual bi-colour LEDs show signal activity and indicate whether a DC coupled signal is above or below the trigger threshold.
REMOTE CONTROL
Interface:
Current Used:
Command Set:
USB (Serial port emulation over USB)
< 95mA (<5mA if AC adaptor power is present)
Annunciators show input configuration, operating mode, measurement units and gate time
DISPLAY
No. of Digits:
Size of Digits:
Annunciators:
10 digits
12.5mm (0.5”)
Instrument specific. TF830 compatible
POWER REQUIREMENTS
The instrument has fixed internal rechargeable batteries and is supplied with a universal voltage external mains adaptor with interchangeable UK, Euro, Australian and US power connectors.
Battery Type:
Operating Life:
Recharge Time:
Three 2500mAh NiMH cells
Typically 24 hours per full charge
Low Batt. Indicator: ‘Lo Bat’ shows when approximately 10% of battery life remains
>4 hours
Adaptor Voltage: 85 to 240V, 50 or 60 Hz
Power Consumption: 5W max at DC input to unit; 15VA max at AC adaptor input (charging)
GENERAL
Operating Range: +5°C to +40°C, 20% to 80% RH
Storage Range:
Environmental:
Size:
Weight:
Electrical Safety:
EMC:
-20°C to +60°C
Indoor use at altitudes up to 2000m Pollution Degree 2
260mm(W) x 88mm(H) x 235mm(D)
950 gms (plus 170 gms AC adaptor)
Complies with EN61010-1
Complies with EN61326
Specifications - PFM3000
INPUT SPECIFICATIONS
Input A
Input Impedance: 1MW//20pF (AC coupled)
Frequency Range: <3Hz to >125MHz
Sensitivity: Sinewave - 15mVrms 10Hz-125MHz
Input B
Input Impedance: 50W (AC coupled)
Frequency Range: <80MHz to >3000MHz
Sensitivity: Sinewave - 15mVrms 80MHz-2GHz, 50mVrms to 3GHz
Maximum Input Voltage
Input A and Input B: 30Vdc; 30Vrms 50Hz/60Hz reducing to 1Vrms above 1MHz
Note that the inputs will not be damaged if subjected to an accidental short-term connection to a
50/60Hz line voltage not exceeding 250V rms.
MEASUREMENT FUNCTIONS
Frequency (Range A)
Frequency Range: 3Hz to 125MHz
Resolution: 10 -7 Hz to 100Hz (see Note)
Frequency (Range B)
Frequency Range: 80MHz to >3000MHz
Resolution: 1Hz to 10kHz (see Note)
Period (Range A only)
Period Range:
Resolution:
Measurement Time
8ns to 330ms
10 -7 ns to 1us (see Note)
Selectable as 10s, 1s or 0.1s. (Note that for the 0.1s setting the effective measurement time is 0.3 seconds).
Resolution
The displayed resolution depends upon the measurement time and the input frequency.
Eight digits (or nine using an overflow indication) are displayed for a 10s measurement time.
Seven or eight digits are displayed for a 1s measurement time, and six or seven digits for 0.1s depending upon the input frequency. Usable resolution may be further reduced by noise, particularly at low frequencies.
Accuracy
Measurement accuracy is the sum of the timebase accuracy and measurement resolution plus one count.
TIMEBASE
Crystal Oscillator Frequency: 10MHz
Initial Oscillator Adjustment Error: ± 2ppm (closed-case adjustable by user)
Oscillator Temperature Coefficient: Typically less than ± 0.3ppm/°C 18°C to 28°C,
Oscillator Ageing Rate:
±10ppm –20°C to 70°C
<± 5ppm/year
OPERATING FACILITIES
Press to measure
With the power switch off, pressing any of the function select keys will power the instrument up in the corresponding function. The instrument will automatically switch off 15 seconds after the last key press.
Hold
Pressing the Hold key will stop further measurements being made and the current measured value will remain in the display until the Hold key is pressed again.
Noise filter
The Filter key controls a low pass filter, with a cut-off frequency of about 50kHz, to ensure more stable readings at low frequencies.
Signal activity indicator
When no input signal is detected the Trig indicator will be off, indicating that no measurement is possible. The gate time indicator flashes until the first measurement interval is complete.
DISPLAY
No. of Digits:
Size of Digits:
Annunciators:
8.5 digits (188888888)
11.5mm (0.45”)
15 annunciators
POWER REQUIREMENTS
Battery Type:
Battery Life:
9V PP3 alkaline
Typically 20 hours
Low Batt. Indicator: ‘Bat’ shows in display when approximately 10% of battery life remains
GENERAL
Operating Range: +5°C to +40°C, 20% to 80% RH
Storage Range:
Environmental:
Size:
Weight:
Electrical Safety:
EMC:
-20°C to +60°C
Indoor use at altitudes up to 2000m Pollution Degree 2
81mm x 178mm x 30mm (W x L x D)
190gms excluding battery
Complies with EN61010-1
Complies with EN61326
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves the right to alter specifications without prior notice.
Designed and built in Europe by:
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon, Cambridgeshire. PE29 7DR United Kingdom
Tel: +44 1480 412451 Fax: +44 1480 450409
Email: [email protected] Web: www.tti-test.com riešenia na presné meranie™
Elso Philips Service; tel: +421 32 6582410 email: [email protected]
; web: www.elso.sk
Brochure Part No. 82100-1380 Iss. 2
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project