Tektronix TPS2000 series digital storage oscilloscope



Tektronix TPS2000 series digital storage oscilloscope

Overview

The official guide document for the Tektronix TPS2000 series digital storage oscilloscope covers the 2-channel (TPS2012) and 4-channel (TPS2014/TPS2024) models, with a core positioning for portable isolation measurement scenarios (such as industrial equipment floating ground testing and outdoor on-site maintenance). The document structure is clear, gradually deepening from safety specifications to advanced functions, including 11 core chapters and 6 appendices, catering to both novice operation and professional measurement needs, while providing rich diagrams and step instructions to reduce operational complexity.

Core parameters and characteristics of the product

1. Model classification and key parameters

Model Number of Channels Bandwidth Sampling Rate Single Battery Endurance Dual Battery Endurance

TPS 2012 2 100MHz 1GS/s 5.5 hours 11 hours

TPS 2014 4 100MHz 1GS/s 4.5 hours 9 hours

TPS2024 4 200MHz 2GS/s 4.5 hours 9 hours

2. Core Features

Isolation channel: All channels and Ext Trig inputs are isolated from chassis, supporting independent floating ground measurement with an input impedance of 3M Ω, solving the common ground limitation of traditional oscilloscopes;

Portable power supply: compatible with TPSBAT lithium batteries (standard 1, optional 2), can be charged simultaneously when powered by mains electricity;

Full function analysis: supports peak detection (capturing ≥ 10ns glitches), video triggering (NTSC/PAL/SECAM), FFT spectrum analysis (2048 point transform);

Data interface: Front mounted Type 1 CompactFlash card slot, rear mounted RS-232 (9-pin) and Centronics (parallel printing) interfaces.

Safety operation standards

1. Electrical safety

Voltage limitation: The maximum voltage of the input channel is 300V RMS CAT II. When it exceeds 100kHz, it will attenuate by 20dB/tenfold to avoid arc damage;

Probe safety: The reference end of the P2220 probe is prohibited from floating above 30V RMS. For high voltage measurements, P5120 (600V RMS CAT II) or differential probes are required;

Grounding requirements: A 3-pin power cord must be used and disconnection of the grounding is prohibited; The equipment chassis needs to be reliably grounded to avoid electric shock caused by floating operations.

2. Operation taboos

Prohibit use in damp/explosive environments and avoid liquid spraying equipment;

Before connecting/disconnecting the probe, the signal source must be disconnected first, and live operation is prohibited;

Before disassembling the battery, it is necessary to turn off the device and avoid short circuiting the battery contacts or putting them into a fire.

Basic operation process

1. Probe operation

Key requirements for operation type steps

Manual compensation: 1. Connect the probe to CH1 and set it to 10X; 2. Connect it to PROBE COMP; 3. Autoset； 4. Adjust the compensation hole to a square wave that is flat and free of dents/bulges. Re compensate each time the channel is changed

Attenuation setting 1. Press CHx MENU → Probe → Voltage Attenuation; 2. Choose 1X/10X P2220 and set the bandwidth limit to 6MHz for 1X

Current probe scaling 1. Press CHx MENU → Probe → Current → Scale; 2. Choose a matching value (such as 10A/V) to ensure consistency with the output ratio of the current probe and avoid reading deviation

2. Self calibration and firmware updates

Self calibration:

Disconnect all probes and press 【 Utility 】 → 【 Do Self Cal 】;

Wait for 2 minutes, and upon completion, display 'Calibration PASSED';

Trigger condition: If the environmental temperature difference exceeds 5 ℃ or once a week, preheating for 20 minutes is required.

Firmware update:

Download the latest firmware from the official website and copy it to the root directory of CompactFlash;

Insert the oscilloscope and press 【 Utility 】 → 【 File Utilities 】 → 【 Update Firmware 】;

Wait for completion, do not power off or unplug the card.

Core Systems and Functions

1. Collection system (three modes)

The working principle of the collection mode is applicable to different scenarios

Sampling mode equidistant sampling, 1-point/interval conventional stable signal (sine wave/square wave)

Peak detection mode records the maximum/minimum values of each interval, including signals with spikes and narrow pulses (≥ 10ns)

After multiple acquisitions in average mode, the signal containing random noise (power ripple, sensor output) is averaged (4/16/64/128 times)

2. Trigger system (three types)

Trigger type key parameters applicable scenarios

Edge triggered slope (rising/falling), coupling (AC/DC/noise suppression), stable display of conventional signals (such as clock signals)

Video trigger standards (NTSC/PAL/SECAM), synchronous (field/line) composite video signals (such as medical equipment video output)

Pulse width triggering condition (=≠<>), width (33ns-10s), polarity capture abnormal pulse (such as communication link narrow pulse interference)

3. FFT spectrum analysis

Setting steps:

Center the time-domain signal (align the 0V line with the center of the screen) to ensure complete waveform;

Press Math Menu → Operation → FFT to select the source channel;

Window selection function (Hanning window: excellent frequency resolution; flat top window: excellent amplitude accuracy).

De aliasing method:

Increase sampling rate (switch from SEC/DIV to faster gear);

Enable 20MHz bandwidth limit;

External filtering (adding a low-pass filter at the signal source end).

Battery Management (Core Features)

1. Charging and battery life

Charging method: single battery charging time, dual battery charging sequence, battery life (4-channel model)

In machine (power on), charge the high battery first for 7 hours, then charge the low battery for 4.5 hours (single battery), and 9 hours (dual battery)

In machine (standby) 4.5 hours as above-

External TPSCHG charger can charge 2 units simultaneously in 3 hours-

2. Calibration and maintenance

Calibration:

External calibration: TPSCHG charger left slot → press "Recalibrate", takes about 10 hours (charge discharge cycle);

In machine calibration: discharge to shutdown → charge for 5 hours → discharge to shutdown → recharge for another 5 hours.

Storage:

Temperature: 5-20 ℃, humidity ≤ 80%;

Electricity consumption: about 50%, replenished once every 6 months;

Taboo: Long term full charge (>80%) or empty charge (<20%) storage is prohibited.

Data Storage and Communication

1. CompactFlash card operation

Storage Content File Name Format 1MB Capacity Approximately Storage Quantity Key Operations

18 waveform files FnnnnCHx.CSV, press 【 Save/Recall 】 → 【 Save Waveform 】 → Select Channel

Set file FnnnnTEK.SET to 250, press 【 Save/Recall 】 → 【 Save Setup 】 → select storage location

16 image files FnnnnTEK.BMP, press [Print] (set to "Save Image to File")

2. RS-232 communication settings

Parameter configuration: Press 【 Utility 】 → 【 Options 】 → 【 RS232 Setup 】 to set the baud rate (default 9600), flow control (Hardtagging), and checksum (None);

Test steps:

Connect the oscilloscope to the PC using cable 012-1379-00;

Open HyperTerminal on the PC and set the same parameters;

Send 'ID?', the oscilloscope returns' ID TEK/TPS2024, CF: 91.1CT, FV: V10.00 '.

Typical application cases

1. Isolation channel measurement differential signal

Connect the probe tip to the positive terminal of the differential signal and the reference terminal to the negative terminal (no common ground required);

Press' AutoSet 'to display the differential waveform;

Press' Single Seq 'to capture a snapshot, and use the cursor to measure the amplitude/rise time.

2. Video signal triggering (NTSC)

Connect the probe to video output, press 【 CH1 MENU 】 → 【 Coupling 】 → 【 AC 】;

Press 【 Trig Menu 】→【 Type 】→【 Video 】→【 Standard 】→【 NTSC 】;

Select [Sync] → [All Lines], adjust SEC/DIV to 500ns/div, and observe the color synchronization signal.

3. Power waveform measurement (voltage x current)

CH1 connected to voltage probe (10X), CH2 connected to current probe (10A/V);

Press 【 Math Menu 】→【 Operation 】→【 × 】→【 CH1 × CH2 】;

Adjust the Math waveform position/scale to display instantaneous power (in VA).

Appendix and Support

1. Key performance parameters

System parameter description

Vertical system resolution 8-bit, 2mV-5V/div

Horizontal system time base range TPS2024:2.5ns-50s/div; TPS2012/2014：5ns-50s/div

Trigger system edge trigger sensitivity DC coupling: 1div (DC-10MHz), 2div (100-200MHz)

Display system resolution of 320 × 240 pixels, 5.7-inch LCD

2. Probe compatibility

Probe model, attenuation ratio, bandwidth, maximum voltage, applicable scenarios

P2220 (Standard) 1X/10X 6MHz/200MHz 150V/300V RMS CAT II Conventional Voltage Measurement

P5120 (optional) 20X 200MHz 1000V RMS CAT II high voltage measurement

TCP303 (optional) 5/50mV/A 15MHz 150A RMS high current AC/DC measurement