TTi TF960 / TF930 / PFM3000

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TTi TF960 / TF930 / PFM3000 | Manualzz

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

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