Apator Metra CRS 40 V2

Questions and Answers

J
John RamosAug 4, 2025
What to do if Apator Metra Measuring Instruments collecting unit A can not establish the radio contact with control unit B?
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  Joanna KruegerAug 4, 2025
  If the collecting unit A can't establish radio contact with control unit B, consider these possibilities: * The receiver might be overloaded. To resolve this, place the collecting unit A further from control unit B. * The collecting unit A may be too far from control unit B, or there could be a barrier impermeable to 868 MHz radio waves between them. In this case, move collecting unit A closer to the control unit B. * Also verify that the DIP switch configuration is the same on both units A and B. If they differ, adjust the DIP switches to match. Ensure that the DIP switch is not in the ON-ON-ON-ON configuration on either unit A or unit B; if it is, change it. Finally, verify that unit B is functioning correctly.
C
Caitlin LewisAug 10, 2025
Why is the connection of Apator Metra Measuring Instruments collecting unit A and control unit B unstable?
- M
  Michelle ReedAug 11, 2025
  An unstable connection between collecting unit A and control unit B of your Apator Metra Measuring Instruments can occur for a couple of reasons: * If the units are too close or too far from each other, the connection might become unstable. Try placing collecting unit A either closer or further from control unit B to see if it stabilizes the connection. * Insufficient power supply can also lead to connection issues. Check the batteries or the connection to the electrical network to ensure they are providing enough power.
A
allenjeanAug 19, 2025
What to do if Apator Metra Measuring Instruments collecting unit A or control unit B does not work?
- W
  William PerryAug 19, 2025
  If either the collecting unit A or the control unit B of your Apator Metra Measuring Instruments isn't working, the first thing to check is the power supply. Try changing the batteries or checking the connection to the electrical network. If this doesn't solve the problem, send it to manufacturer to repair.
E
Ellen DelgadoAug 27, 2025
What to do if Apator Metra CRS 40 V2 Measuring Instruments control unit does not contain any data from read devices?
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  Wendy JohnsonAug 27, 2025
  If the control unit of your Apator Metra Measuring Instruments isn't showing data from the read devices, verify that the red LED is off on units A (indicating they are connected) and that the green LED blinks at irregular intervals of minutes (showing data receiving). If unit A isn't receiving data, no data will appear on unit B. Also, ensure that unit A isn't connected to another reading network.

Summary

1. Introduction

1.1. System Conception

Describes the system's aim for ease of administration and automatic error reporting.

1.2. System Topology

Illustrates the system's star topology with Control Unit B and Collecting Units A.

1.3. Advantages of the System

2. Safety

2.1. Safety Notice

Provides important information for proper and safe use of the equipment.

2.2. Requirements for Workers Performing Installation, Maintenance and Operation of the System

Outlines necessary qualifications and training for personnel working with the system.

2.2.1. Personnel Involved with Installation and Maintenance

Details requirements for electricians and staff involved in installation and maintenance.

2.2.2. Operation of Equipment

Specifies skills needed for operators handling data and remote system access.

3. Description of the Equipment

3.1. General Description of the Equipment

Overview of the CRS 40 system for remote reading of heat cost allocators and water meters.

3.1.1. Unit Type A (Collecting Unit, the Concentrator)

Describes Unit A's function, components, and role in collecting data.

3.1.2. Unit B (Control Unit Coordinator)

Details Unit B's function, components, and role as the system coordinator.

3.1.3. Type B Combi

3.2. Technical Information

3.3. Package Content

Instructions for checking unit integrity and completeness upon receipt.

3.4. Internet Connection Options

3.5. Method of Use or Disposal

States that the device is subject to special waste handling regulations.

4. Spreading of Radio Waves

4.1. Propagation of Electromagnetic Fields

Explains electromagnetic radiation, wavelength, reflection, and refraction.

4.2. Possible Obstacles to Propagation of the Electromagnetic Waves in the Apartment Building

Lists common obstacles affecting radio wave propagation in buildings.

5. Installation in the Apartment House

5.1. Installation of Control Unit B

Details finding a suitable place, connecting to the network, and basic settings for Unit B.

5.2. Installation of Collecting Units A

Guides on placing collecting units, verifying connection, and checking data reception.

5.3. Finishing and Verifying of the Installation

Steps for verifying correct function, setting NTP server, and loading reading plan.

6. Reading Network

6.1. RF MAC Reading Network Address

Explains the unique identification number of the radio module (RF MAC address).

6.2. Configuration of Multiple Overlapping Network

Details how to distinguish and configure multiple reading networks using DIP switches.

7. Firmware Updates

8. Troubleshooting

9. Connection Reading Network

9.1. VPN Network Structure

Explains the virtual private network structure and IP address assignment.

9.2. VPN Connectivity Options

Options for connecting to the reading network via VPN.

9.2.1. Connect via PC

Step-by-step guide for setting up a VPN connection using Windows client.

9.2.2. Connecting via Mobile Device

Guide for connecting to the reading network using a mobile device's VPN client.

10. Description of the Graphical Interface

10.1. Connecting to the Reading Network

How to access the system via a web browser and IP address.

10.2. Logging in to the Reading Network

Details initial login credentials and how to retrieve forgotten login data.

10.3. Main Page of the Reading Network

Explains the main page, data types like Missing/Unread, Electronic Seal, and Excessive Back Flow.

10.4. List of Units A Connected to the Reading Network

Overview of connected Unit A units, including last contact time and signal strength.

10.5. System Parameters Setting

How to set various reading network parameters and access help.

11. For Advanced Users

11.1.1. Basic Synchronization Setting

Guide for setting up basic, automatic data synchronization using a security key.

12. The Most Common User Problems

13. Installation Methods

13.1. General Recommendations

Provides general advice for optimal placement of system units.

13.2. Construction System T0 XB (Czech Republic)

Details recommended positioning for Unit A and Unit B in T0xB buildings.

14. Appendix 1 A: Configuration of CRS40 via Setting File on SFTP Server

Parameters and Their Meaning

Explains key parameters like DefaultLanguage, NetworkName, SendFreq, and CurEmail.

15. Appendix 1 B: Example of a Configuration File