VOLTCRAFT PR-80 Pressure Meter Instruction Manual

Operating Instructions
PR-80 Pressure Meter
Item No. 2620274

Introduction

Dear customer,
Thank you for purchasing this product.
If there are any technical questions, please contact: www.conrad.com/contact

Downloading the operating instructions

You can download the complete operating instructions (or new/updated versions if available) by using the link www.conrad.com/downloads or by scanning the QR code. Follow the instructions on the website.

Intended use

This product is a portable differential pressure meter. This device is used to measure gaseous media.
The product is intended for indoor use only. Do not use it outdoors. Contact with moisture must be avoided under all circumstances.
Using the product for purposes other than those described above may damage the product. Improper product use can cause a short circuit, fire, electric shock, other hazards.
This product complies with statutory, national and European regulations. For safety and approval purposes, you must not rebuild and/or modify the product.
Read the operating instructions carefully and store them in a safe place. Always provide these operating instructions when giving the product to a third party.
All company and product names contained herein are trademarks of their respective owners. All rights reserved.

Features and functions

• This device can measure positive pressure/differential pressure in the range from -2,000psi to +2,000psi.
• Choose between 11 different measuring units: bar, ozin2, psi, inHg, mbar, mmHg, kPa, kg/cm2, inH2 O, ftH2 O, cmH2 O.
• Additional functions are Data Hold, MAX/MIN/AVG.
• The automatic shut-off feature can be deactivated.

Delivery content

• Pressure meter
• 3 x AAA batteries
• Operating instructions
• 2 hoses
• Storage pouch

Explanation of symbols

The following symbols appear on the product/device or in the text:
This symbol warns of hazards that can lead to injury.
This symbol warns of a dangerous voltage which can lead to injuries due to electric shock.

Safety instructions

Read the operating instructions carefully and especially observe the safety information. If you do not follow the safety instructions and information on proper handling, we  assume no liability for any resulting personal injury or damage to property. Such cases will invalidate the warranty/guarantee.

8.1 General information

• This product is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. It may become a dangerous plaything for children.
• Should you have any questions or concerns after reading this document, please contact our technical support or a professional technician.
• Maintenance, modifications and repairs must only be carried out by a technician or a specialist repair centre.

8.2 Handling

• Please handle the product carefully. Impact, shocks or a fall even from a low height can damage the product.

8.3 Operating environment

• Do not expose the product to any mechanical stress.
• Protect the product from extreme temperatures, strong jolts, flammable gases, vapours and solvents.
• Protect the product from high humidity and moisture.
• Protect the product from direct sunlight.
• Never switch the device on immediately after taking it from a cold into a warm environment. This may cause condensation to form, which can destroy the product. Allow the product to reach room temperature before using it.
• Avoid using the product near strong magnetic or electromagnetic fields, transmitter aerials or HF generators. Otherwise, the product may not function properly.

8.4 Operation

• Consult an expert when in doubt about the operation, safety or connection of the device.
• If it is no longer possible to operate the product safely, stop using it and prevent unauthorised use. DO NOT attempt to repair the product yourself. Safe operation can no longer be guaranteed if the product:
  • is visibly damaged,
  • is no longer working properly,
  • has been stored in poor ambient conditions for extended periods or
  • has been subjected to any serious transport-related stress.

8.5 Batteries

• When inserting batteries, it is essential to ensure that the correct polarity is observed.
• If the device is not going to be used for an extended period of time, take the batteries out to prevent any potential damage caused by battery leakage. In the event of contact with the skin, any leaking or damaged batteries can cause corrosive burns. When handling any damaged batteries, it is therefore essential to wear suitable protective gloves.
• Batteries must be kept out of reach of children. Do not leave batteries lying around, as they constitute a choking hazard and risk of injury if swallowed by children or pets.
• All batteries should be replaced at the same time. Using old and new batteries in the device at the same time could lead to battery leakage and product damage.
• Batteries must not be disassembled, short-circuited or thrown into fire. Never recharge a non-rechargeable battery. This could cause an explosion! Open the battery compartment in the rear panel by loosening the screw.

Controls

1. Pressure measurement connection (+)
2. Pressure measurement connection (-)
3. LCD display
4. ON/OFF/Automatic shut-off
5. Hold/Zero setting
6. MAX/MIN/AVG
7. UNITS

9.1 Display Description

Getting started

10.1 Inserting/replacing the batteries
Note:
Replace the batteries when the low battery symbol lights up.

1. Use a cross-head screwdriver to remove the compartment cover screw.
2. Place 3 x 1.5 V AAA batteries in the battery compartment. Ensure that the batteries are inserted in the correct polarity (+/-) as indicated in the battery compartment.
3. Replace the battery compartment cover taking care not to over-tighten the screw.

Operation

11.1 Switching the device on/off
Hold the button down to switch the measuring device on or off.

11.2 Automatic shut-off

Note:

• Automatic shut-off is activated by default, and is indicated by the symbol.
• This energy saving feature will switch the device off after about 10 minutes of no activity.

To deactivate automatic shut-off:
Required conditions:

• The measuring instrument is switched on.
  1. The hold function is activated.
  2. Press the button briefly to switch the automatic shut-off function on or off.
  Note:
  If the automatic switch-off function is deactivated, the symbol is no longer displayed.
  3. The automatic shut-off function will be reactivated after the device has been switched off.

11.3 Zero setting and offset
Before use, with no fittings attached to the measuring device, press the ZERO button for longer than 2 seconds to zero set the meter.
0000 will appear in the display from right to left, the disappear rapidly.

11.4 Display hold function

Important:

• The display hold function freezes the display.
• The display hold function should be switched off before taking measurements.
  • Press the HOLD button to switch the display hold function on or off.
  • When the display hold function is switched on, the „HOLD“ symbol will be displayed.

11.5 MAX / MIN / AVG
In this mode the display shows the „MIN“ (minimum), „MAX“ (maximum), or „AVG“ (average) values measured.

• Press the MAX/MIN/AVG button to enable MAX/MIN feature.
• Press the MAX MIN button multiple times to switch between these modes: MAX → MIN → AVG.
• The display shows „MAX“, „MIN“ or „AVG“, to indicate which mode is currently activated.
  To exit MAX/MIN/AVG mode, press the MAX/MIN button for 2 seconds to go back to normal operation. In MAX/MIN/AVG mode, the automatic shut-off function is deactivated.

11.6 Hold data
Press the HOLD button briefly to freeze the measurement value displayed. The „HOLD“ symbol appears at the top left of the display.
Press the HOLD button again to go back to normal operation.

11.7 Units
Press the UNITS button to change the units used. The 11 available measuring units are indicated by the cursor at the bottom of the display.
An overview of the units of measurement and conversion factors is provided in sections 15.5 and 15.6 in the technical data.
OL
OL is displayed if values are outside the measurement range.

Troubleshooting

Cleaning and care

Important:

• Do not use aggressive cleaning agents, rubbing alcohol or other chemical solutions.
  They can damage the housing and can cause the product to malfunction.

• Do not submerge the product in water.
  Clean the product with a dry, lint-free cloth.

Disposal

14.1 Product
This symbol must appear on any electrical and electronic equipment placed on the EU market. This symbol indicates that this device should not be disposed of as unsorted municipal waste at the end of its service life.
Owners of WEEE (Waste from Electrical and Electronic Equipment) shall dispose of it separately from unsorted municipal waste. Spent batteries and accumulators, which are not enclosed by the WEEE, as well as lamps that can be removed from the WEEE in a non-destructive manner, must be removed by end users from the WEEE in a non-destructive manner before it is handed over to a collection point.
Distributors of electrical and electronic equipment are legally obliged to provide free take-back of waste. Conrad provides the following return options free of charge (more details on our website):

• in our Conrad offices
• at the Conrad collection points
• at the collection points of public waste management authorities or the collection points set up by manufacturers or distributors within the meaning of the ElektroG

End users are responsible for deleting personal data from the WEEE to be disposed of.
It should be noted that different obligations about the return or recycling of WEEE may apply in countries outside of Germany.

14.2 (Rechargeable) batteries
Remove batteries/rechargeable batteries, if any, and dispose of them separately from the product. According to the Battery Directive, end users are legally obliged to return all spent batteries/rechargeable batteries; they must not be disposed of in the normal household waste.
Batteries/rechargeable batteries containing hazardous substances are labelled with this symbol to indicate that disposal in household waste is forbidden. The abbreviations for heavy metals in batteries are: Cd = Cadmium, Hg = Mercury, Pb = Lead (name on (rechargeable) batteries, e.g. below the trash icon on the left).
Used (rechargeable) batteries can be returned to collection points in your municipality, our stores or wherever (rechargeable) batteries are sold. You thus fulfil your statutory obligations and contribute to environmental protection.
Batteries/rechargeable batteries that are disposed of should be protected against short circuit and their exposed terminals should be covered completely with insulating tape before disposal. Even empty batteries/rechargeable batteries can contain residual energy that may cause them to swell, burst, catch fire or explode in the event of a short circuit.

Technical data

15.1 Power supply
Power supply …………………………………….3 x 1.5 V AAA batteries

15.2 Measuring range
Measuring range ………………………………..-2,000 psi to +2,000 psi
Accuracy …………………………………………..±0.3% FSO (25C)
Repeatability ……………………………………..±0.2% (Max.+/ -0.5% FSO)
Linearity/Hysteresis ……………………………±0.29% FSO
Pressure range ………………………………….±0.137 bar / ±2,000psi
Maximum pressure …………………………….0.27 bar / 4psi
Typical response time …………………………0.5 seconds
Out-of-range indicator …………………………OL

15.3 Ambient conditions
Operating altitude ………………………………≤2000 m
Operating conditions …………………………..0°C to +50°C
Storage conditions ……………………………..-10°C to +60°C
………………………………………………< 80 % RH (non-condensing)

15.4 Miscellaneous
LCD size …………………………………………..35 x 30 mm
Automatic shut-off ………………………………Yes, after 10 minutes
Protection type …………………………………..IP54
Pressure measuring connection …………..Hose with 3 mm inner diameter
Dimensions (W x H x D) ……………………..27 x 144 x 248 mm
Weight ……………………………………………..approx.115 g (without battery)
Drop protection ………………………………….up to 1 m drop height

15.5 Units of measurement

15.6 Conversion factors

This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240
Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication represent the technical status at the time of printing.
Copyright 2024 by Conrad Electronic SE.

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References

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