Durite 0-798-50 - User Manual

To Next Page

WARNING

Be sure to read the warnings and follow the instructions in this

leaflet. Incorrect use may put the user in danger.

The following legends apply to this leaflet and multimeter:

Danger High voltage

Ground/Earth

Warning! Refer to the instruction leaflet

Direct Current (DC)

Alternating current (AC)

Fuse with correct amp rating

Double insulated

10amps Maximum!

To avoid electrical shock, remove test leads before opening the

case.

Do not use abrasives or solvents to clean the case!

Gordon Equipments Limited, England 0-798-50 LEAF1

Digital hand held multi-meter

Part 0-798-50

ntroduction

This meter is designed to measure DC and AC voltage, DC and AC current, Resistance, Frequency and Duty Cycle,

Temperature, Capacitance, Diode and Audible Continuity test. It features a separate On/Off switch, large LCD display

with backlight, multi-function switch and 5 buttons select the various functions and ranges. Red and black leads with

est probes and push on crocodile clips are provided for electrical measurements and a contact temperature probe

re included. The meter switches off after approximately 30 minutes if no section has been made, this function can

be overridden by pressing the blue button when turning the meter on.

WARNING

Be sure to read the warnings and follow the instructions in this manual. Incorrect use may put the user in danger.

Safety rules and warnings!

1. Do not operate unit with rear cover removed, high voltage circuitry may be exposed!

2. Before use ensure that battery and leads are serviceable and connect leads to appropriate sockets.

3. Select correct function and manual range if required.

4. Do not attempt to measure values in excess of the maximum.

5. Do not switch between functions when connected to circuits being tested.

6. Use only new fuses of correct rating in the event of a fuse failure.

7. The battery must be renewed when the battery symbol is displayed otherwise accuracy will be affected.

8. Switch off unit when not in use to reduce battery drain.

9. Do not use this multi-meter in wet conditions.

10. Observe safety warnings in these instructions as danger to user could be present when testing some circuits

or components.

General features

Maximum display: ‘±3999’

DC Voltage Range: 400mV to 1000V

DC Current Ranges: 4A to 10A, 40mA to 400mA, 400µA to 4000µA

AC Voltage Range: 4V to 750V

AC Current Ranges: 4A to 10A, 40mA to 400mA, 400µA to 4000µA

Resistance Range: 400Ω to 40MΩ

Capacitance Range: 40nF to 100µF

Temperature Range: -40˚C to 1000˚C

Frequency Range: 10Hz to 10Mhz

Auto Polarity Indicator

Over range Display: ‘OL’

Diode Forward Voltage Drop and Continuity Buzzer

Sampling Time around 0.3 seconds

Energy: 9v Battery (NEDA 1604, PP3, 6F22 or equivalent)

Low Battery Voltage Indication

Auto Off: Approximately 30minutes

Overload Protection (internal fuses)

Operating Temperature: 0°C to 40°C

Storing Temperature: -10°C to 50°C

Operating Relative Humidity: <75% @ 0°C to 30°C, <50% @ 31°C to 40°C

Dimension: 177 x 85 x 40mm (L x W x H)

Weight: Approximately 300 grams

Fuses: µA and mA range 0.5A 250V, 5 x 20mm fast acting, 10A range 10A 250V, 5 x 20mm fast acting

Gordon Equipments Limited, England

Need help?

Do you have a question about the Durite 0-798-50 and is the answer not in the manual?

Summary

General Warnings and Symbols

Leaflet Symbols Explanation

Explains the meaning of symbols used in the leaflet for multimeter operation and safety.

Measuring Procedure

Voltage Measurement DC;AC

Instructions for measuring DC and AC voltage, including input limits and frequency response.

Current Measurement DC

Guidance for measuring DC current, including socket selection and safety precautions.

Resistance Measurement

Steps for measuring resistance, including precautions for open circuits and voltage.

Continuity Check and Diode Test

Procedure for continuity checks and diode testing, including buzzer activation and diode voltage.

Capacitance Measurement

How to measure capacitance, including polarity considerations and capacitor discharge.

Frequency and Duty Cycle Measurement

Instructions for measuring frequency and duty cycle, including signal amplitude considerations.

Temperature Measurement

Method for measuring temperature using the probe and ambient temperature reading.

The Durite Digital Handheld Multi-Meter (Part 0-798-50) is a versatile device designed for electrical measurements, offering a wide range of functions and features for both professional and DIY use.

Function Description:

This multi-meter is capable of measuring various electrical parameters, including DC and AC voltage, DC and AC current, Resistance, Frequency, and Duty Cycle. It also supports Temperature measurement, Capacitance, Diode testing, and Audible Continuity checks. The device features a dedicated On/Off switch, a large LCD display with a backlight for improved visibility in various lighting conditions, and a multi-function switch along with five buttons to select different functions and ranges.

Important Technical Specifications:

Maximum Display: The meter can display values up to ±3999.
DC Voltage Range: 400mV to 1000V.
- Accuracy: ±(0.8%+3) for 400mV, ±(0.8%+1) for 4V, 40V, 400V, ±(1%+3) for 1000V.
- Resolution: 0.1mV to 1V.
- Input Impedance: 10MΩ.
- Circuit Overload Protection: 1000VDC, 750VAC rms.
AC Voltage Range: 4V to 750V.
- Accuracy: ±(1%+5) for 4V, 40V, 400V, ±(1.2%+5) for 750V.
- Resolution: 1mV to 1V.
- Input Impedance: 10MΩ.
- Circuit Overload Protection: 1000VDC, 750VAC rms.
DC Current Ranges: 400µA to 10A.
- Accuracy: ±(1%+2) for 400µA, ±(1.2%+3) for 4000µA, 40mA, 400mA, ±(1.5%+5) for 4A, 10A.
- Resolution: 0.1µA to 0.01A.
- Circuit Overload Protection: 0.5A 250V fast acting fuse (5x20mm) for µA and mA ranges; 10A 250V fast acting fuse (5x20mm) for 4A and 10A ranges.
AC Current Ranges: 400µA to 10A.
- Accuracy: ±(1.5%+5) for 400µA, 4000µA, ±(2%+5) for 40mA, 400mA, ±(2.5%+5) for 4A, 10A.
- Resolution: 0.1µA to 0.01A.
- Circuit Overload Protection: 0.5A 250V fast acting fuse (5x20mm) for µA and mA ranges; 10A 250V fast acting fuse (5x20mm) for 4A and 10A ranges.
Resistance Range: 400Ω to 40MΩ.
- Accuracy: ±(1.2%+2) for 400Ω, 4MΩ; ±(1%+2) for 4KΩ, 40KΩ, 400KΩ; ±(1.5%+2) for 40MΩ.
- Resolution: 0.1Ω to 10KΩ.
- Circuit Overload Protection: 1000Vp.
Capacitance Range: 40nF to 100µF.
- Accuracy: ±(3%+10) for 40nF; ±(3%+5) for 400nF, 4µF, 40µF; ±(4%+5) for 100µF.
- Resolution: 10pF to 100nF.
- Circuit Overload Protection: 1000Vp.
Temperature Range: -40°C to 1000°C.
- Accuracy: ±(3%+4) for -40-0°C; ±(1%+3) for 0-400°C; ±(2%+10) for 400-1000°C.
- Resolution: 1°C.
- Circuit Overload Protection: 0.5A 250V fast acting fuse (5x20mm).
Frequency Range: 10Hz to 10MHz.
- Accuracy: ±(0.1%+3).
- Input Sensitivity: <1MHz: <300mV, >1MHz: <600mV.
- Maximum Input Amplitude: 30V rms.
- Circuit Overload Protection: 1000Vp.
Duty Cycle: 0.1% to 99.9%.
- Resolution: 0.01%.
Diode Test: Open circuit voltage about 1.48V. Displays diode forward voltage drop.
Continuity Test: Buzzer sounds when testing object resistance <70Ω. Open circuit voltage 0.45V.
Auto Polarity Indicator: Yes.
Over Range Display: 'OL'.
Sampling Time: Approximately 0.3 seconds.
Energy: 9V Battery (NEDA 1604, PP3, 6F22 or equivalent).
Low Battery Voltage Indication: Yes.
Auto Off: Approximately 30 minutes (can be overridden by pressing the blue button when turning the meter on).
Overload Protection: Internal fuses.
Operating Temperature: 0°C to 40°C.
Storing Temperature: -10°C to 50°C.
Operating Relative Humidity: <75% @ 0°C to 30°C, <50% @ 31°C to 40°C.
Dimensions: 177 x 85 x 40mm (L x W x H).
Weight: Approximately 300 grams.
Fuses: µA and mA range: 0.5A 250V, 5 x 20mm fast acting; 10A range: 10A 250V, 5 x 20mm fast acting.

Usage Features:

Test Leads: Supplied with red and black test leads, test probes, and push-on crocodile clips for versatile connections. A contact temperature probe is also included.
Auto Ranging: The meter defaults to auto ranging, indicated by 'AUTO'. Manual ranging can be selected by repeatedly pressing the 'RANGE' button, and auto ranging can be reselected by pressing and holding 'RANGE'. When using manual range, it is recommended to start with the highest range if the magnitude of the voltage or current is unknown.
Hold Function: The 'HOLD' function allows the user to freeze the current reading on the display. Pressing 'HOLD' again cancels the function.
Relative Function: The 'REL' function subtracts a stored value from the present reading to display the relative value. Note that 'REL' turns off auto ranging.
Backlight: The backlight can be activated by pressing and holding the 'HOLD' button for 2 seconds, and turned off by pressing and holding it again.
Safety Warnings: The manual emphasizes critical safety rules, including not operating the unit with the rear cover removed, ensuring serviceable battery and leads, selecting the correct function and range, not exceeding maximum input limits, and not switching functions while connected to circuits. It also warns against measuring current in circuits where the open-circuit voltage is greater than 250V.
Current Measurement Duration: Current measurement in the 10A range should not exceed 10 seconds in any 15-minute period.
Temperature Measurement: The point contact temperature probe is designed for temperatures up to 250°C. When no leads are connected, the ambient temperature is displayed.

Maintenance Features:

Battery Replacement: The battery must be renewed when the battery symbol is displayed to maintain accuracy.
Fuse Replacement: In case of fuse failure, only new fuses of the correct rating should be used.
Cleaning: To avoid electrical shock, test leads must be removed before opening the case. Abrasives or solvents should not be used to clean the case.
Power Conservation: Always switch the multi-meter off when not in use to conserve battery life.

Durite 0-798-50 Specifications

General

Brand	Durite
Model	0-798-50
Category	Measuring Instruments
Language	English