HB Products HBCP Compressor Protection Instruction Manual

HB Products HBCP Compressor Protection

Safety Instructions

CAUTION! Read the instruction manual before commencing work! Heed all warnings to the letter! Installation of HBCP requires technical knowledge of both refrigeration and electronics. Only qualified personnel should work with the product. The technician must be aware of the consequences of an improperly installed sensor, and must be committed to adhering to the applicable local legislation.
If changes are made to type-approved products, this type approval becomes void. The product’s input and output as well as its accessories may only be connected as shown in this guide. HB Products assumes no responsibility for damages resulting from not adhering to the above.
Explanation of the symbol for safety instructions.
In this guide, the symbol below is used to point out important safety instructions for the user. It will always be found in places in the chapters where the information is relevant. The safety instructions, and particularly the warnings, must always be read and adhered to.
CAUTION! Refers to a possible limitation of functionality or risk of use.
NOTE! Contains important information about the product and provides further tips.
The person responsible for operation must commit to adhering to all the legislative requirements, preventing accidents, and doing everything so as to avoid damage to people and materials.
Intended use, conditions of use.
The HBCP sensor and controller is made to measure and control refrigerant. If HBCP is to be used in a different way or with another purpose, and if the operation of the product in this function is determined to be problematic, prior approval must be obtained from HB Products
Prevention of collateral damage :
Make sure that qualified personnel assess any faults and take necessary precautions before attempting to make replacements or reparations, so as to avoid collateral damage.
Disposal instructions: HBCP is built so that the modules can easily be removed and sorted for disposal.

Introduction

HBCP is an intelligent sensor with a built-in microprocessor. It is designed to detect liquid hammer in industrial refrigeration systems. The output signal is an alarm signal for warning and alarm respectively.
The sensor’s sensitivity is configurable based on the capacitive measurement principle, and it can react to just a few single drops. The sensor has a built-in data logger so that the liquid hammer history can be tracked in up to 16,000 data logs with an optional sequence.

Measurement Principle

The sensor is a capacitive sensor. The capacitive measurement principle is based on the electrical properties in the proximity of a capacitor. A capacitor is an electrical component that is capable of building and sustaining an electrical charge
Principally, a capacitor consists of two plates. When a charge is applied to a plate, the other plate will be charged with the opposite polarity and retain the charge until it has been grounded. The magnitude of the charge (the capacitance) that can be generated depends, among other things, on what is found between the plates. The substance between the plates is referred to as a dielectric.
Rather than two plates, the sensor for level measurement is shaped as a cylindrical rod. When liquid covers the sensor, the measured capacity is changes. The conductivity of a material can vary depending on temperature, chemical composition, and the homogeneity of the material, and therefore it can sometimes require a different factory calibration.
HB Products sensors are calibrated so that they differentiate between conductive and non-conductive liquids.
In refrigeration systems, the oil and liquid CO2 are not regarded as conductive fluids, whereas refrigerants such as ammonia, HFCs, and brine are regarded as conductive.

Design

The sensor consists of a mechanical part and an electronic part. These can easily be separated with a union nut. The electronic part is designed in accordance with IP65 waterproof rating and to withstand vibrations. The mechanical parts have been produced with AISI304/PTFE and tested to resist high pressures.

Software

The sensor is supplied with the latest firmware.
The sensor is configured with a configuration tool, “HBCP Tool”, using a PC. It is capable of determining the version that was supplied.

Technical Data

Installation Guide

1. Selection of size:
   • 1/4″ is used for pipes with a dimension of < 2″
   • 1″ is used for pipes with a dimension of > 2″
2. Must be mounted in a horizontal or vertical position. Must be perpendicular of +/- 1.0 and offset from the centre, so that there can be distance of 0-2mm between the sensor and the inner wall of the pipe. The internal pipe and the sensor pipe may be in contact.
3. HBCP can be mounted very closely to the compressor or up to 5m away from it.
4. The sensor is installed with a standard cable without a sheath. If EMC is higher than described in EN 61326, a sheathed cable must be used. CAUTION! In case of welding work on the unit, the electronic part must be removed. Welding work can damage the electronics.

Electrical connection

HBCP: With supply and control cable to the modulating valve.

Installation Guide

• For the installation of HBCP, you require a 2.5mm Allen key, a shifting spanner, as well as gasket material depending on the thread type.
• Loosen the two set screws that secure the electronic part to the mechanical part. Separate the electronics from the mechanical part.
• Apply liquid gasket / Teflon to the conical thread. Install the mechanical part and tighten it. Tighten depending on the thread type and size (80-150Nm).
• Mount the electronic part again and secure with two set screws.

LED Indication & Calibration

LED indication:

1. Green LED indicates 24 V DC supply; it blinks during operation. If “run-in” is not used, this function must be deactivated in the tool.
2. Yellow LED indicates low alarm.
3. Red LED indicates high alarm.

Installation of /0 Configuration Tool

See separate manual.
NOTE! To be able to change the control parameters, you need a special USB/M12 configuration cable, as well as a configuration tool installed on a PC

PC Configuration

See separate manual.

Fault Detection

General:
NOTE! Fault detection in the electronics and/or replacement of the electronics can be carried out without releasing pressure on the system or removing the mechanical part of the sensor

Sensor Repair

• The sensor electronics are completely embedded and can therefore not be repaired.
• In case of faults with the sensor, it will typically only be necessary to replace the electronics.
• Complaint cases are handled by the HB Products dealers/distributors.
• Their complain procedures must be followed before returning the sensor.

Spare parts

References

• Optimal solutions for level measurement and control of oil and refrigerants

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