FNIRSI DST-210 User Manual - FNIRSI Oscilloscopes Store in UK

Multifunctional Oscilloscope Multimeter

Version 1.2

1. Safety Requirements
2. Product Overview
3. Technical Specifications
4. Operation Guide
5. Quick Start Guide
6. Troubleshooting
7. Maintenance
8. Contact Us
9. Warranty Information

1. Safety Requirements

1.1 Environmental Requirements

Precautions:

Avoid high temperature, open flames, corrosive gases, humid or dusty environments to prevent equipment failure.
For your personal safety, use the test leads provided with the meter. Before use, inspect and ensure they are in good condition.
Use the correct input terminals, functions, and ranges for measurements. Do not exceed the specified input limits for each range to prevent damage to the meter.

Keep Away From:

Heaters: Avoid overheating or fire risk
Water, chemicals, solvents: Leakage may damage equipment or cause fire
Strong magnetic devices: Prevent magnetic field interference with normal operation

Disposal:

Do not dispose of old batteries or equipment with household waste. Dispose according to national or local regulations.

2. Product Overview

The DST-210 is a comprehensive multifunctional device launched by FNIRSI, integrating oscilloscope and multimeter capabilities into one portable unit.

Oscilloscope Features:

Bandwidth: 10 MHz
Sample Rate: 100 MSa/s
Display: 2.8-inch TFT color screen with clear, intuitive interface
Triggering: Edge trigger, auto/normal/single modes
Measurements: Automatic measurement of frequency, period, amplitude, peak-to-peak, effective value, duty cycle, and more
Waveform Storage: Save and recall waveforms
USB Data Export: Transfer data to PC via USB connection

Multimeter Features:

Comprehensive Functions:
- AC/DC Voltage measurement
- AC/DC Current measurement
- Resistance, Capacitance
- Diode test / Continuity test
- Frequency, Temperature
- Data Hold function
- LIVE wire detection (live/neutral)
- Record mode and automatic measurement
Protection: Overload protection and low battery indication

Portable Design:

Display: 2.8-inch TFT color screen
Battery: Built-in high-capacity rechargeable lithium battery (3000 mAh)
Battery Life: Supports long standby time (10 hours)
Design: Compact and lightweight, suitable for mobile use

The FNIRSI DST-210 provides users with powerful, flexible functionality and a portable operating experience. It is an ideal multifunctional instrument for professionals, factories, schools, hobbyists, and home use.

2.1 Product Operation Diagram

Front Panel Controls:

Mode Switch Button: Switch between oscilloscope and multimeter modes
Rotary Dial Selector: Select measurement function
Automatic Measure Key: Enable automatic measurements
Run/Pause Button: Start/stop waveform acquisition
Confirm Button: Confirm selections
Selection Key: Navigate menu options

Rotary Dial Positions:

AUTO: Automatic range
Ω (Ohm): Resistance measurement
Diode: Diode test
Frequency: Frequency measurement
mA: AC/DC milliamp current
V: AC/DC voltage
Buzzer: Continuity test (with buzzer)
Capacitor: Capacitance measurement
Temperature: Temperature measurement
A: AC/DC current (up to 10A)

Connectors:

COM Jack: Common terminal (black lead)
V/Ω Jack: Voltage/Resistance terminal (red lead)
mA Jack: Milliamp current terminal
10A Jack: High current terminal (up to 10A)
BNC Input: Oscilloscope signal input
Type-C Port: USB charging port (5V/1A)
Reset Hole: Firmware reset button

Additional Features:

Built-in kickstand for hands-free viewing
LED indicators for power and charging status

3. Technical Specifications

Oscilloscope Specifications:

Bandwidth: 10 MHz (-3 dB)

Input Channels: 1 channel (BNC connector)

Sample Rate: 100 MSa/s (single-shot)

Vertical Sensitivity: 50 mV/div – 50 V/div (1-2-5 steps)

Input Impedance: 1 MΩ // 20 pF

Maximum Input Voltage: 400V (DC + AC peak)

Vertical Resolution: 8 bits

Timebase Range: 100 ns/div – 100 s/div

Trigger Modes: Auto, Normal, Single

Trigger Source: CH1

Trigger Types: Edge (rising/falling)

Record Length: 2048 points

Automatic Measurements:

Frequency (Hz)
Period (s)
Peak-to-Peak Voltage (Vpp)
RMS Voltage (Vrms)
Maximum Voltage (Vmax)
Minimum Voltage (Vmin)
Duty Cycle (%)

Multimeter Specifications:

DC Voltage: 0 – 600V, Accuracy: ±(0.5% + 3 digits)

AC Voltage (True RMS): 0 – 600V, Accuracy: ±(1.0% + 5 digits)

DC Current (mA): 0 – 600 mA, Accuracy: ±(1.0% + 3 digits)

AC Current (mA): 0 – 600 mA, Accuracy: ±(1.5% + 5 digits)

DC Current (A): 0 – 10A, Accuracy: ±(1.5% + 5 digits)

AC Current (A): 0 – 10A, Accuracy: ±(2.0% + 5 digits)

Resistance: 0 – 60 MΩ, Accuracy: ±(1.0% + 3 digits)

Capacitance: 0 – 10 mF, Accuracy: ±(3.0% + 5 digits)

Frequency: 10 Hz – 10 MHz, Accuracy: ±(0.1% + 2 digits)

Duty Cycle: 1% – 99%, Accuracy: ±(1% + 1 digit)

Temperature (K-type): -20°C – 400°C, Accuracy: ±(2.0% + 3°C)

Diode Test: 0 – 2V, Accuracy: ±(1% + 2 digits)

Continuity Test: < 30 Ω, Buzzer alert

General Specifications:

Display: 2.8-inch TFT LCD (320×240)

Battery: 3000 mAh lithium-ion rechargeable

Battery Life: Approx. 10 hours (typical use)

Charging Port: Type-C USB (5V/1A)

Charging Time: Approx. 3 hours

Data Storage: Internal memory for waveform storage

USB Interface: Type-C (data transfer to PC)

Operating Temperature: 0°C to 40°C

Storage Temperature: -20°C to 60°C

Humidity: < 80% RH (non-condensing)

Dimensions: 148 mm × 73 mm × 30 mm

Weight: Approx. 200g

4. Operation Guide

4.1 Oscilloscope Mode Operation

Basic Operation:

Step 1: Power On

Press and hold power button for 2-3 seconds
Device displays startup screen

Step 2: Select Oscilloscope Mode

Press MODE button to switch to oscilloscope mode
Screen displays oscilloscope interface with grid

Step 3: Connect Signal

Connect BNC probe to oscilloscope input
Connect probe tip to circuit under test
Connect probe ground clip to circuit ground

Step 4: Adjust Display

Use UP/DOWN keys to adjust vertical scale (V/div)
Use LEFT/RIGHT keys to adjust timebase (s/div)
Press AUTO button for automatic setup

Step 5: Trigger Settings

Press MENU to access trigger settings
Select trigger mode: Auto, Normal, or Single
Adjust trigger level using UP/DOWN keys
Choose trigger edge: Rising or Falling

Step 6: Measurements

Press AUTO MEASURE button
Display shows automatic measurements: Frequency, Period, Vpp, Vrms, Vmax, Vmin, Duty cycle

Step 7: Save Waveform

Press MENU → Save
Select memory location (1-10)
Confirm to save current waveform

Step 8: Recall Waveform

Press MENU → Recall
Select saved waveform from list
Press CONFIRM to load

4.2 Multimeter Mode Operation

Voltage Measurement (AC/DC):

Turn rotary dial to V position
Connect red lead to V/Ω jack, black lead to COM jack
Press MODE to select AC or DC voltage
Connect probes across the voltage source
Read measurement on display

Current Measurement (AC/DC):

For mA range (0-600 mA):

Turn rotary dial to mA position
Connect red lead to mA jack, black lead to COM jack
Press MODE to select AC or DC current
Connect meter in series with circuit
Read measurement on display

For A range (0-10A):

Turn rotary dial to A position
Connect red lead to 10A jack, black lead to COM jack
Press MODE to select AC or DC current
Connect meter in series with circuit
Read measurement on display

⚠ Do not measure > 10A or use for > 10 seconds continuously

Resistance Measurement:

Turn rotary dial to Ω position
Connect red lead to V/Ω jack, black lead to COM jack
Disconnect power from circuit being tested
Connect probes across resistor
Read resistance value on display

Capacitance Measurement:

Turn rotary dial to capacitor position
Connect red lead to V/Ω jack, black lead to COM jack
Discharge capacitor completely before testing
Connect probes to capacitor terminals
Wait for reading to stabilize (may take several seconds)
Read capacitance value on display

Diode Test:

Turn rotary dial to diode position
Connect red lead to V/Ω jack, black lead to COM jack
Connect red probe to anode, black probe to cathode
Forward voltage drop displayed (typically 0.4-0.7V for silicon)
Reverse connection shows ‘OL’ (open) for good diode

Continuity Test:

Turn rotary dial to buzzer position
Connect red lead to V/Ω jack, black lead to COM jack
Touch probes to both ends of circuit path
Buzzer sounds if resistance < 30Ω (continuity)
Display shows resistance value

Frequency Measurement:

Turn rotary dial to frequency position
Connect red lead to V/Ω jack, black lead to COM jack
Connect probes to signal source
Display shows frequency (Hz, kHz, or MHz)
Duty cycle also displayed (if square wave)

Temperature Measurement:

Turn rotary dial to temperature position
Connect K-type thermocouple to meter
Place thermocouple probe at measurement point
Wait for reading to stabilize
Read temperature in °C or °F

Live Wire Detection:

Turn rotary dial to AUTO position
Hold meter near AC power wire (do not touch)
Display indicates LIVE or NEUTRAL wire
LED indicator also shows status

Data Hold Function:

Press HOLD button to freeze current reading
‘HOLD’ indicator appears on display
Press HOLD again to resume normal operation

5. Quick Start Guide

Getting Started:

Step 1: Unpack and Inspect

Check package contents:

DST-210 main unit
BNC oscilloscope probe
Test leads (red and black)
K-type thermocouple
USB Type-C charging cable
User manual

Inspect for any damage from shipping

Step 2: Initial Charging

Connect USB Type-C cable to meter and power adapter
Charge for 3 hours before first use
LED indicator shows charging status
Red LED: Charging
Green LED: Fully charged

Step 3: Power On

Press and hold power button for 2-3 seconds
Display lights up with FNIRSI logo
Device enters default mode

Step 4: First Measurement

Multimeter Mode:

Turn dial to desired function
Connect appropriate test leads
Perform measurement

Oscilloscope Mode:

Press MODE button to switch to scope
Connect BNC probe
Press AUTO for automatic setup
View waveform on screen

6. Troubleshooting

Device won’t power on

Possible Cause: Battery dead

Solution: Charge for 30 minutes

Possible Cause: Power button held insufficient time

Solution: Hold button 2-3 seconds

No waveform display

Possible Cause: No signal input

Solution: Check probe connection

Possible Cause: Wrong V/div scale

Solution: Press AUTO button

Possible Cause: Trigger not set

Solution: Adjust trigger level

Multimeter shows ‘OL’

Possible Cause: Open circuit

Solution: Check connections

Possible Cause: Range too low

Solution: Change to higher range

Possible Cause: Test lead broken

Solution: Replace test leads

Inaccurate readings

Possible Cause: Low battery

Solution: Charge battery

Possible Cause: Needs calibration

Solution: Contact service center

Possible Cause: Wrong function

Solution: Check dial position

Display is dim

Possible Cause: Low battery

Solution: Charge battery

Possible Cause: Brightness low

Solution: Adjust in settings menu

Won’t charge

Possible Cause: Cable damaged

Solution: Replace USB cable

Possible Cause: Adapter issue

Solution: Try different adapter

Possible Cause: Port dirty

Solution: Clean Type-C port

Freezes or crashes

Possible Cause: Software error

Solution: Press reset button

Possible Cause: Memory full

Solution: Delete saved waveforms

7. Maintenance

Regular Maintenance:

Cleaning:

Power off device before cleaning
Wipe display with soft, dry cloth
Do not use chemical solvents or abrasive cleaners
Clean BNC connector with contact cleaner if necessary
Keep USB port free from dust and debris

Battery Care:

Charge battery at least once every 3 months if not in use
Avoid complete discharge for extended periods
Do not expose to extreme temperatures during charging
Replace battery if capacity significantly decreases

Storage:

Store in cool, dry place (0°C to 40°C)
Keep in protective case when not in use
Remove batteries if storing for extended period
Avoid direct sunlight and high humidity

Probe Maintenance:

Inspect test leads regularly for damage
Check for exposed wires or cracks in insulation
Replace damaged probes immediately
Keep probe tips clean and sharp
Store probes properly to prevent damage

Calibration:

Professional calibration recommended every 12 months
Contact FNIRSI service center for calibration service
Keep calibration certificate for warranty purposes

Warnings:

⚠ Do not disassemble the device – no user-serviceable parts inside
⚠ Do not expose to water or excessive moisture
⚠ Do not drop or subject to strong impact
⚠ Use only specified replacement parts and accessories

8. Contact Us

Manufacturer:

Company: Shenzhen Zhuo Yue Xin Technology Co., Ltd.

Brand: FNIRSI

Product: DST-210 Multifunctional Oscilloscope Multimeter

Model: DST-210

Version: V1.2

Support:

Website: www.fnirsi.com

Email: support@fnirsi.com

Downloads: Manuals, software, firmware at www.fnirsi.com/support

Service: Available worldwide

9. Warranty Information

Warranty Coverage:

Period: 12 months from date of purchase
Covers: Manufacturing defects and component failures
Includes: Free repair or replacement (at manufacturer’s discretion)

Warranty Exclusions:

✗ Damage from misuse, abuse, or accidents
✗ Damage from unauthorized modifications or repairs
✗ Normal wear and tear (battery, test leads)
✗ Damage from improper storage or transportation
✗ Damage from exposure to liquids or extreme conditions
✗ Cosmetic damage that doesn’t affect functionality

Warranty Claim Procedure:

Contact support@fnirsi.com with:
- Proof of purchase (receipt or invoice)
- Serial number (on back of device)
- Detailed description of issue with photos/videos
Await response with instructions (1-2 business days)
Ship device to designated service center if required
Repair or replacement completed within 15 business days
Device returned via courier

Important Notes:

Keep proof of purchase for warranty service
Register product at www.fnirsi.com for extended support
Warranty is valid worldwide
Customer responsible for shipping costs to service center
Return shipping covered by FNIRSI for warranty repairs
Warranty does not cover accessories (probes, cables)

For latest updates, firmware, and support: www.fnirsi.com

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