Sperry instruments DM6450 User Manual

1
I. DISPLAY FUNCTIONS & SYMBOLS
OPERATING INSTRUCTIONS
9 Function, Auto Range Digital
Multi-Meter
DM6450
6
8
9
14
7
11
10
Read this owner’s manual thoroughly before use and save.
1. 3/12 digit LCD backlit display
2. Test Lead icons on display indicate
proper input terminals for easy
attachment of test leads
3. Durable drop resistant housing
4. 10 position Function dial
5. AC Volts
6. DC Volts
7. AC Amps
8. DC Amps
9. Resistance
10. Audible Continuity Test
11. Diode Test
12. Capacitance
13. Frequency
14. Low impedance button
15. Relative change
16. Positive input jack
17. Common input jack
18. Range select button
1.0 METER FUNCTIONS
Meter type: Auto-Ranging
Functions: 9
Ranges: 10 (Auto)
Display Count: 3999
Test Lead Icons: on display indicate proper input terminals for easy attachment of test leads
Input Impedance: 10 Meg Ohm
AC Volt Ranges: 4V, 40V, 400V, 750V, best accuracy (1.0%+5)
DC Volt Ranges: 400mV, 4V, 40V, 400V and 1000V, best accuracy (0.8%+1)
AC Amps: 400µA, 4000µA, 40mA, 400mA, 4A and 10A, best accuracy (1.2%+2)
DC Amps: 400µA, 4000µA, 40mA, 400mA, 4A and 10A, best accuracy (1.0%+2)
Resistance Ranges: 400ohm, 4kohm, 40kohm, 400kohm, 4Mohm, 40Mohm, best accuracy (1.0%+2)
Over Range Indication: Displayed value > 1999, displays OL (The safety and accuracy will only be guaranteed within the specification range) by the
input.
Polarity Indication: “-“ is displayed for negative polarity
Auto Off: 30 minutes
Electro-Magnetic: When it is under 1V/m frequency : total accuracy = assigned accuracy +5% of the range. When it is over 1V/m frequency: there
is no assigned accuracy.
Agency Approvals: ETL, CE (IEC/EN61010:, CAT III 600V, Pollution Degree 2
Operating Temperature: 32°F - 104°F (0°C_40°C)
Relative Humidity: 32°F - 86°F below <75%, 86°F - 104°F<50%
Storage Temperature: 14°F - 122°F(-10°C - 50°C)
Dimension: 179mm x 88mm x 39mm
Weight: Around 380g (including battery)
Altitude: Maximum 2000m
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Sperry instruments DM6450 Specifications

General

Brand	Sperry instruments
Model	DM6450
Category	Multimeter
Language	English

Summary

Display Functions & Symbols

Safety Information

For Your Safety

Essential safety precautions and warnings for using the multimeter safely.

Operating Instructions

General guidance on proper use and handling of the multimeter.

Function Buttons

REL A Button

Explanation of the Relative Change (REL) button functionality.

Low Impedance Button

Instructions for using the low impedance mode and its limitations.

Auto Off

Details on the automatic power-off feature and how to disable it.

Dial Settings

AC Volts V~

Procedure for measuring AC Voltage (V~) with the multimeter.

DC Volts V

Procedure for measuring DC Voltage (V) with the multimeter.

AC or DC Amps A

Instructions for measuring AC and DC current (A) safely and accurately.

Resistance Ω

Guidance on how to measure resistance (Ω) correctly.

Continuity 1))

How to use the continuity test function with audible buzzer.

Diode Testing

Steps for testing diodes and semiconductor junctions.

Capacitance

Procedure for measuring capacitance, including relative mode for accuracy.

Frequency Hz

Instructions for measuring frequency (Hz) with the multimeter.

Battery Replacement

Fuse Replacement

Sperry Instruments Limited Lifetime Warranty