Cirrus CR:110AIS, CR:112AIS Intrinsically Safe doseBadge Noise Dosimeter Instructions

CR:110AIS, CR:112AIS Intrinsically Safe doseBadge Noise Dosimeter
Instructions
Intrinsically Safe doseBadge noise dosimeter
CR:110AIS/CR:112AIS

Introduction

This document serves as a supplementary document for ATEX- approved/Intrinsically Safe variants of the CR:110A and CR:112A doseBadge noise dosimeters, namely the CR:110AIS and CR:112AIS. For guidance on how to operate these instruments, please consult the complete user manual supplied.

Guidelines for safe and efficient use

Please read all sections of this document along with the operating instructions in the user manual before attempting to use the instrument(s).
This symbol is used to indicate that special attention should be taken and any instructions followed carefully. Information covered in these sections relates to operations that are vital to the efficient use of the instrument.
It is essential that the operator or user of the CR:110AIS doseBadge ensures that the certification provided by the unit is sufficient for the application and environment in which the equipment will be used.
Other approvals may be available for the CR:110AIS doseBadge. Please contact Cirrus Research plc for further details. No other versions of the doseBadge Personal Noise Dosemeter, manufactured by Cirrus Research plc, have been approved or carry Intrinsic Safety certification.

2.1 Using the CR:110AIS and CR:112AIS doseBadges
The CR:110AIS and CR:112AIS doseBadges are controlled by the RC:110A reader unit. The RC:101A reader unit does not carry Intrinsic Safety certification and therefore, must not be used in hazardous zones.
The CR:110AIS and CR:112AIS doseBadges must be started, stopped, read, calibrated and charged outside of any areas designated as hazardous.
2.1.1 Before use
Before entering a hazardous area with either the CR:110AIS or CR:112AIS, the following must be checked:

1. That there is no sign of damage to the unit that may affect its integrity;
2. That the instrument is running and that the blue indicator LED is flashing;
3. That the sealing baseplate with the 43mm (1.7”) metal insert has been screwed onto the doseBadge. Do not use any other baseplate;
4. That the doseBadge is at ambient temperature (for example, it has not just been removedfrom a hot environment).

2.1.2 Mounting the doseBadge
When mounting the CR:110AIS or CR:112AIS, only the mounting kit and sealing baseplate supplied should be used. Using any other mounting kit and/or sealing baseplate may invalidate the instruments’ Intrinsic Safety certification.
2.1.3 Servicing and maintenance
There are no user-serviceable parts inside the CR:110AIS or CR:112AIS doseBadges, and no user adjustment is possible of the internal components of the doseBadge.
Service and Calibration must only be carried out by Cirrus Research plc or by a service centre and/or calibration laboratory that has been approved by Cirrus Research plc.
The information relating to the CR:110AIS version of the doseBadge personal noise dosimeter is provided in accordance with the requirements of EN 50014: 1998 and EN 50020: 2002.
Full details of the Intrinsic Safety Certification of the CR:110AIS doseBadge are given in section 4.

Intrinsic Safety Approvals

The CR:110AIS and CR:112AIS doseBadges have been certified as being suitable for use in areas where intrinsic safety is a requirement for equipment.

3.1 CR:110AIS doseBadge
The CR:110AIS doseBadge carries the following certification:

In addition to these, the CR:110AIS carries an IECEx Intrinsic Safety Certification as follows:

Group I Non-Mining
Ex ia II C T4
Group II Mining
Ex ia I

Ex Approval is in accordance with the ATEX Directive. Full details of the Intrinsic Safety Certification are available on the Cirrus Research plc website.
This approval covers the following components:

• CR:110AIS doseBadge noise dosimeter
• UA:110 doseBadge windshield for CR:110AIS doseBadge
• SP:131 doseBadge mounting kit (supplied with the CR:110AIS doseBadge)

The standard CR:110A doseBadge is not approved for Instrinsic Safety and must not be used in areas where an Intrinsic Safety Approval is required.

3.2 CR:112AIS doseBadge
The CR:112AIS doseBadge carries an MSHA Instrinsic Safety approval as shown below.
CR:112AIS doseBadge Personal Noise Dosemeter
MSHA Intrinsic Safety Approval No. 18-A060027-0

This approval covers the following components:

• CR:112AIS doseBadge noise dosimeter
• UA:100 windshield for CR:112AIS doseBadge
• SP:131 doseBadge mounting mit (supplied with the CR:110AIS doseBadge)

The standard CR:112A doseBadge is not approved for Intrinsic Safety and must not be used in areas when an Intrinsic Safety approval is required.

3.3 Non-approved equipment
The following equipment/components do not carry Intrinsic Safety approval and should not be used in areas where Instrinsic Safety approval is required:

• RC:110A doseBadge reader unit
• CR:101A keyfob remote control
• CU:195A mains power supply
• CU:110A charger unit
• ZL:102 USB download cable
• CK:100 carrying case for doseBadge measurement kits

Intrinsic Safety Markings

4.1 ATEX Directive Certification Description
The ATEX Directive became a mandatory requirement for all hazardous area equipment sold in the European Union from 2003. In addition to the technical requirements demanded by the appropriate standard for each type of product, the ATEX Directive imposes additional requirements on the certificate holder in terms of quality systems and product documentation.
The technical details of gas groupings and temperature classifications are unchanged, but zoning references are amended and gas, vapour and dust categories are combined into a single classification as shown below.

| Pre ATEX| ATEX
---|---|---
Zone 2| Gas, Vapours & mists| Category 3 Gases, vapours, mists & dusts
Zone 1| Gas, Vapours & mists| Category 2 Gases, vapours, mists & dusts
Zone 0| Gas, Vapours & mists| Category 1 Gases, vapours, mists & dusts
Zone 2 2| Dusts|
Zone 2 1| Dusts|
Zone 2 1| Dusts|

Because the ATEX Directive is different to the IEC/CENELEC Certification, different numbers are used for the Intrinsic Safety Approval. These are described below.

4.2 CENELEC/IEC Certification Description
The certification for the CR:110AIS doseBadge is as follows:

• EEx ia IIC T4 Group 2 for Non-Mining Applications
• EEx ia I Group 1 for Mining Applications

The classifications are described below:

Type of Protection
ia = Intrinsic Safety to CENELEC EN SOD20 (IK 79-11) for Group II (Non-Mining)
Gas Group
IIC = Hydrogen (Surface – Above Ground)
Temperature Class (Group II)
T4 = Maximum surface temperature of equipment =135°C
Ignition temperature or vapour > 135°C| Type of Protection
ia = Intrinsic Safety to CENELEC EN 50020 DEC 79-11) for Category M1 (Mining)
Gas Group
I = Methane (Aining)

The certificates relating to the Intrinsic Safety Certification of the CR:110AIS doseBadge areavailable from the Cirrus Research plc website.
These are uncontrolled copies of the certificates and should not be reproduced without thepermission of Cirrus Research plc.

www.cirrusresearch.com
sales@cirrusresearch.com

References

• Noise Measurement Instruments | Cirrus Research plc

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