NF-514 - Measurement Noyafa - Free user manual and instructions

Product Type	Laser Distance Meter
Brand	Noyafa
Model	NF-514
Measurement Range	0.05 to 40 meters
Measurement Accuracy	±2.0 mm
Laser Class	Class 2, < 1 mW
Display Type	Backlit LCD
Units	m, ft, in, ft+in
Functions	Single distance, continuous, area, volume, Pythagorean mode (2-point, 3-point)
Memory	Last 20 measurements
Power Source	2 x AAA batteries (1.5V)
Battery Life	Up to 5,000 measurements
Auto Power Off	After 3 minutes of inactivity
Dimensions	120 x 50 x 25 mm
Weight	100 g (including batteries)
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Ingress Protection	IP54 (dust and splash resistant)
Maintenance	Clean lens with a soft, dry cloth; do not use solvents
Safety Precautions	Do not stare into the laser beam; avoid direct eye contact
Spare Parts / Accessories	Batteries, carrying pouch, manual
Repairability	No user-serviceable parts; contact support for issues

Frequently Asked Questions - NF-514 Noyafa

How do I turn on the Noyafa NF-514?

Press and hold the Measure button for 2 seconds to power on. The display will light up.

How do I change the measurement unit?

Press the Unit button (usually marked with 'm/ft') to cycle through meters, feet, inches, and feet+inches.

What is the maximum range of the NF-514?

The NF-514 can measure distances from 0.05 to 40 meters (131 feet). Accuracy is ±2.0 mm.

How do I measure area or volume?

Press the Function button to select area or volume mode. Measure the required sides (length, width, height) by pressing the Measure button each time. The result is displayed automatically.

How do I use the Pythagorean mode?

Press Function until the Pythagorean icon appears (2-point or 3-point). Measure the two or three sides as prompted. The device calculates the unknown distance.

What batteries does the NF-514 use?

It uses two AAA 1.5V batteries. Replace them when the battery icon blinks.

Why does the laser not turn on?

Check if the batteries are installed correctly and have enough charge. Also, ensure the device is powered on. If the laser still does not activate, it may be malfunctioning.

How do I clean the lens?

Use a soft, dry cloth to gently wipe the lens. Do not use any liquids or abrasive materials.

Is the NF-514 water-resistant?

It has an IP54 rating, meaning it is protected against dust and splashing water, but not submersion.

Can I use the NF-514 outdoors?

Yes, but direct sunlight or reflective surfaces may affect accuracy. The laser is visible up to 40 meters in typical conditions.

USER MANUAL NF-514 Noyafa

Building Electronic Thermometer

User Manual

NF-514

VER: V1

1. Overview

The instrument is Portable Building Electronic Thermometer is pro of as silicon a temperature range measure in ing according to the construction characteristics of my construction industry and relevant technical specifications. It displays the measured temperature intuitively, accurately and quickly, with good reliability, wide range of use and applications. Operating environment, small size and light weight, easy to suitable for construction sites and field operations; mainly using construction, building materials, water conservancy, electric power, metallurgy, petrochemical, ports, roads and bridges, municipal other basic construction projects.

2、Scope Of Application

The instrument is suitable for on-site construction temperature measurement of various construction projects. It can be used to measure temperature measurement probes to measure the temperature materials and clinker, such as gas, liquid, fluid, mixture and granular materials; and embedded temperature measurement line. It can be used to measure the internal temperature of winter construction concrete and mass concrete.

3、The composition and function of the instrument

① Main Tester

The instrument is suitable for on-site construction temperature measurement of various construction projects. It can be used to measure temperature measurement probes to measure the temperature materials and clinker, such as: gas, liquid, fluid, mixture and granular materials; and embedded temperature measurement line. It can be used to measure the internal temperature of winter construction concrete and mass concrete.

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The temperature measuring probe is made of a plug, a wire, a handle and a metal tube with an outer diameter of 5mm×220mm front end of the tube is packaged with a temperature sensor, which is suitable for measuring the temperature of materials and clinker.

⑤ Temperature measurement line

The embedded temperature measuring line is made of a plug, a wire and a temperature sensor, which is suitable for measuring the internal temperature of the concrete. Each temperature measuring line with a wire can measure the temperature at one point, and the temperature measuring point can be arranged arbitrarily during the construction. In order to facilitate layered temperature measurement, the plug of each temperature measurement cable has a label affixed with a corresponding length specification.

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4、The main technical indicators

③ Temperature measurement range: -30°C-150°C
① Temperature measurement error: ± 0.5^
② Resolution: 0.1°C
Operating environment temperature: 20°C-50°C
○ Display mode: 3-digit LCD screen
Power supply: 9V laminated battery
Weight: 200g
① Host volume: 135mm×72mm×32mm

5、Use method

④ Use the host and temperature probe to measure the temperature of the material
Insert the plug of the temperature probe into the socket of the host, press the power switch, and insert the metal claw of the temperature probe into the shirch to be removed, the injection cloth is not low.
(4) than 1/2 of its length, and the temperature data is read on the host in about two minutes. When measuring the temperature of the mixture, in order to avoid excessive impact between the temperature and the hard objects in the mixture and affect the service life, a metal rod can be used to reserve a hole in the mixture, and temperature probe can be inserted into the hole Temperature measurement. The temperature probe should be wiped clean each use.
② Measure the temperature of mass concrete with the host and temperature measuring line
After the construction temperature measurement plan is determined, select a temperature measurement line with appropriate length specifications according to the number and depth of the temperature measurement points, for example: the actual tempera

measurement point depth is 0.2m-0.3m, and the 0.5m temperature measurement line can be selected; the actual temperature measurement: The point drop is 2.6m-2.8m, and the temperature measurement line will be a specification of 3m can be selected, and so much as the temperature measurement line is also set to support, and the temperature measurement line is tied to the support according to the distance of the longitudinal temperature measurement point. The temperature sensor and the support should be insulated. The temperature measurement line is also set to support, and the temperature measurement wire into the concrete, the temperature sensor is at the temperature measuring point, and the plug is left outside of the main unit. The temperature measurement line is also set to support it clean. For ease of orientation, the length of the wire left outside should be greater than 20cm. When measuring the temperature, press the power switch of the main unit and insert the plug of the temperature measurement line into the socket of the main unit, and the temperature measurement line is also set to support the temperature measurement point can be displayed on the main unit's display screen.

③ Use the host and temperature measuring line to measure the concrete temperature during winter construction

When pouring concrete, reserve temperature measurement hole according to the winter construction temperature measurement plan, place a temperature measurement wire in each hole, and leave the plug of the temperature measurement wire outside the hole and power it with a plastic bag to avoid moisture and keep it clean. When measuring the temperature, press the power switch of the main unit and insert the plug of the temperature measurement line is socket of the main unit, and the temperature of the con temperature measurement point can be displayed on the main unit's display screen. After each stage of temperature measurement, temperature measurement line will be stored for future use. Temperature measuring line can also be buried in the cond one-time use.

④ Use of night temperature reading and lighting function

When used at night or in a dark environment, press the host backlight switch, the LCD screen can emit blue background light, ma reading clear and eye-catching. Press the light switch, the light turns on, which is equivalent to a flashlight.

6、Battery replacement

When LOBAT appears in the upper left corner of the display of the host or cannot be turned on normally, it is usually caused by in battery voltage, and a new battery needs to be replaced. The method

is as follows: Open the battery compartment cover behind the unit, take out the old battery from the battery compartment, buckle the new battery, and then restore the battery compartment cover its original position.

7、Battery replacement

① When the host is not connected to the temperature measuring probe or the temperature measuring line, ^1-1 is displayed on the display as the preparation state.

② Do not use excessive force during operation. Hold the plug firmly when inserting or unplugging the plug into or out of the socket of the host.

③ If the plug or the socket of the main unit gets wet due to accidental ingress of water, please wipe it and dry it before using it to avoid inaccurate temperature measurement results.

⑥ The instrument should be turned off in time after use, and the battery should be removed when it is not used for a long time to avoid damage to the instrument.

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⑤ Do not open the back cover of the main unit by yourself. Please the send it back to the manufacturer or agency when you need to repair or calibrate it.

8、Accessories

① 1 copy of instruction manual

② 1 copy of product inspection certificate

③ 1 copy of product warranty card

2 Instrument sets 1 piece

⑤ Batteries

9、Options

Optional accessories
01	Temperature probe
02	Optional specification of temperature measuring line.
	0.5m, 1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m
03	Other specifications of the temperature measuring line can be customized.

Building Electronic Thermometer