Macnaught PR Instruction Manual

MXL-INSTPR

REV 3

11/19

TYPE PR

DIGITAL REGISTER

INSTRUCTION MANUAL

- FLOWRATE INDICATOR

- TOTALIZER

To the Owner

Please read and retain this instruction manual to assist
you in the operation of this product.

This Instruction Manual provides instruction guide on the
operation and programming of the Type PR, 12mm LCD
Digital Register.

Should you require further assistance please contact you
local Macnaught representative.

Macnaught offer a comprehensive set of web based
support materials to compliment our product range.
Access the website by scanning the QR code.

WWW.MACNAUGHT.COM

INDEX

Introduction……………………………………………………………………………………………………………….………..

Functions and Features…………..……………..……………..……………..……………..……………..……………..…… 3

Configuration…………..……………..……………..……………..……………..……………..……………..……………..… 3

Display and mounting information………….……………..……………..…………..……………..…………….………….. 3

Installation………………………………..……………………………………..……………..……………..……………..…... 3

Warranty……………………………………..……………..……………..……………..……………..……………..………... 3

Technical Specifications…………….…………….…………………………………………………………………………….

General…………….…………….…………….…………………..…………..……………..……………..……………..…… 4

Display…………….…………….…………….…………….……..…………..……………..……………..……………..…… 4

Input…………….…………….…………….……………………..……………..……………..……………..……………..….. 4

Output…………….…………….…………….……………………..……………..……………..……………..………………. 4

Set-up functions…………….…………….…………….………………….…………….…………….…………….……….…..

Terminal connectors…………….…………….…………………….…………….…………….…………….……...…………

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Explanation of Set-up functions…………….…………………………….…………….…………….…………….…………

Total/ Batch Total….…………….…………….………………….…………..……………..……………..……………..…… 6

Accumulated Total…………….…………….…………….……..…………..……………..……………..……………..……. 6

Flow Rate…….…………….…………….……………………..……………..……………..……………..……………..……. 6

Meter…………….…………….…………….……………………..……………..……………..……………..……………..… 6

Programming Set-up level…………….…………….……………………….…………….…………….…………….……….

Modes of operation…………….…………….………………………………..……………..……………..……………..…... 7

Function of buttons…………….…………….………………………………..……………..……………..……………..…... 7

Entering and Exiting Setup mode…….………………………………..……………..……………..……………..…………. 7

K-factor programming…………….…………….…………….………………….…………….…………….………………….

How to find a k-factor of your meter…………..……………..……………..……………..……………..……………..……. 8

Entering K-factor in the display…………..……………..……………..……………..……………..……………..…………. 8

Gallons to Litre conversion…………….…………….…………..…………..……………..……………..……………..…… 8

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Dimensions…………….…………………………………….…………….…………….……………….…………….………….

Exploded view……………...…………………….…………….…………….…………….………………………….………….

Ordering code…………….…………….………………….…………….…………….…………….…………….……………..

Service kits…………….…………….………………….…………….…………….…………….…………….…………….…..

Troubleshooting…………….…………….…………….………….………….…………….…………….…………….……....

Replacing the battery…….…………….…………….…………..…………..……………..……………..……………..…… 10

Notes……………..…………….…………….…………….………….………….…………….…………….…………….……....

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INTRODUCTION

FUNCTIONS AND FEATURES

The flow rate / totalizer model PR is a microprocessor driven instrument designed to display flow rate, total and
accumulated total.
This product has been designed with a focus on:

• Ultra-low power consumption to allow long-life battery powered applications.

• The glass reinforced polypropylene housing offers IP67 environmental protection.

CONFIGURATION OF THE UNIT

The PR has been designed to be implemented in many types of applications. For that reason, a SETUP-level is
available to configure your PR according to your specific requirements.
It includes several important features, such as K-factors, measurement units etc. All setting are stored in EEPROM
memory and will not be lost in the event of power failure.

DISPLAY INFORMATION

The unit has a large transflective LCD with various kinds of symbols and digits to display measuring units, status
information and key-word messages.
Flowrate and total are displayed on 12mm digits.
A backup of the total and accumulated total in EEPROM memory is made every minute.

MOUNTING EXAMPLES

Mounting on MX meter body

DISPLAY EXAMPLES

Flow rate example

Mounting on wall mount bracket

Total example

Display features Decimals and various units of measurement

INSTALLATION

The display has a unique M-lock mounting feature. It can be installed on

• MX meter body

• MX wall mount bracket

To install, secure the display on the cam and rotate quarter turn clock-wise (90 degrees)
To uninstall, hold the display and rotate quarter turn anti clock-wise (90 degrees)

There are no tools required to install/ remove the display

WARRANTY

For warranty terms & conditions, visit

https://au.macnaught.com/warranty

3

GENERAL

Display

Type High intensity reflective numeric and alphanumeric LCD, UV-resistant

Digits Seven 12mm (0.47") and seven 8mm (0.31"). Various symbols and measuring units

Refresh rate

Enclosure

General Polypropylene housing with Polycarbonate window, EPDM gaskets. UV stabilized

Control keys Two industrial micro-switch keys. UV-resistant keypad.

IP Classification IP67

Cable entry (2) x M12 * 1.5

Backlight No

Ex approvals No

Temperature

Operational -20°C to +80°C (-4°F to +176°F).

TECHNICAL SPECIFICATIONS

Flow Rate: Once per second

Total: 8 times/second after key press to one second

Power supply

Battery powered Lithium battery - life-time depends upon settings - up to 3 years @ 20°C

Battery specs 3.6 VDC, ‘A’ size, type: ER17505 (Ordering code: DR012S)

Terminal connections

2

Data protection

Environment

Electromagnetic

compatibility

Type Terminal strip. Wire max. 1mm

Type Backup of all settings and running totals in flash memory

Compliant ref: EN 61326-1:2006, EN61010-1:2001

DISPLAY

Flow rate / Total / Batch total / Accumulated total

Digits 7 digits

Units L - m3 - UKGAL - USGAL - UKbbl –USbbl - OILbbl

Decimals 0 - 1 - 2 or 3.

Flow Rate

Time units /sec - /min - /hr

Operator functions

Flow Rate.

Total (can be reset to zero by the operator).

Displayed functions

Batch total (can be reset to zero by the operator)

Accumulated total (non resettable)

(Note: Total and Batch total can be reset to zero)

INPUT & OUTPUT

Input

Input Reed switch (from flow meter)

Frequency

K-Factor 0000.001 - 9,999.999 pulses per Litre

Output

Output Nil

Total: minimum 0 Hz - maximum 120 Hz for total

Flow Rate: 0.01 Hz – maximum 120 Hz

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