TABLE OF CONTENTS INTRODUCTION WARRANTY BEST INSTALLATION PRACTICE SAFETY INFORMATION SENSORS MODELS APPROVALS ELECTRICAL SPECIFICATIONS COMMUNICATIONS MAINTENANCE PROCEDURES FAULT FINDING TERMS AND CONDITIONS ANNEXURE A RISK ASSESSMENT INTRODUCTION RISK IDENTIFICATION STANDARDS AND COMPLIANCE IDENTIFIED REGULATORY RISK HAZARD IDENTIFICATION DATA ANALYSIS INCIDENT INVESTIGATION P a g e...
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Manufactured and Distributed by: Ningi 22 Langa Crescent Corridor Hill Witbank, MP 1035 South Africa Phone +27 13 656 3147 Fax +27 13 656 3190 Sales sales@ningi.com Queries: admin@ningi.com Website: www.ningi.com Technical Support: support@ningi.com P a g e...
• Smoke (MOS) (NOT Recommended) **Although the P50 can be fitted with a MOS sensor we do not recommend this options for the P50, we therefor recommend a dedicated MOS sensor such as our S16 monitor. The P50 is South African manufactured and is certified to the International Standards and Compliance IEC (SANS) 10086-2:2006.
The P50 operates as a user friendly device with real time data available to the user. All the measurements and data are available on the 16x2 OLED display, audio/visual indicator and RS485 network. All parameters are adjustable via personal computer.
BEST INSTALLATION PRACTICE This section of the manual is intended as a guideline only for the installation of the P50 environmental sensor as shown in a typical underground operation. This guideline does not supersede local authority or rules for your environment as installations are required to be approved by the authoritative person responsible for the ventilation/environmental monitoring where the device is to be located.
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Figure 2 – Path Position The P50 should not be mounted to close to either side of the ventilation path, or where cross flows could influence the reading. Figure 3 – Installation Attitude When the P50 is hung it should be hung as level as possible.
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Figure 4 – Directional Position For optimal Velocity readings the P50 should be positioned ensuring the Sensor indicated is positioned in the airflow Sensor to remain in the airflow Air Flow P a g e...
Operating temperature range -10°C to 50°C • Response time 30 sec Methane (CH4) P50 High quality sensors are used to ensure long term reliability and accurate measurements. The sensor has an effective range of 0 to 100%, but to ensure a better resolution the CH4 sensor is optimized to measure a range of 0 to 5%.
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Methane (CH4) P51 High quality sensors are used to ensure long term reliability and accurate measurements. The sensor has an effective range of 0 to 1000000ppm, but to ensure a better resolution the CH4 sensor is optimized to measure a range of 0 to 50000ppm. Specifications •...
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Oxygen (O2) The oxygen sensor measures the full range accurately and consistently Specifications • Sensor range 0 to 30% • Operating range 0 % to 30% • Operating temperature range -20°C to 50°C • Response time < 15 sec Barometric pressure A high accuracy pressure sensor is used to measure absolute barometric pressure.
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Ambient temperature The ambient temperature sensor has long term stability measuring in a range of 0 to 100% RH (Normal Operating Range and is condensation resistant) Specifications • Sensor range -40°C to 125°C • Normal Operating range 20°C to 60°C •...
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Hydrogen (H2) High quality sensors are used to ensure long term reliability and accurate measurements. The sensor has an effective range of 0 to 1000ppm. Specifications • Sensor Range 0 to 1000ppm • Operating range 0 to 1000ppm • Operating temperature range -20°C to 50°C •...
Power Off In order to save battery power the P50 will shut down when the external power is removed and the P50 unit is placed upside down. The P50 will resume normal operation when the external power is restored regardless of the orientation of the P50.
APPROVALS Marking: Type: P50 Sensor Ex rating: Ex ia 1 (-20°C to +50°C) IA No: MASC M/11-437X Serial No: (See validity of report) Ingress Protection: IP65 Safety Parameters: Connector P5 Ui = 18V Li =0 Ii = 3A Ci =0 Pin 3 w.r.t 4...
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220V Grey Cable Ningi Cable 220V Neutral Yellow Blue 220V Live RS485 A/+ Green RS485 B/- Orange COM 1 Purple N/O 1 Purple COM 2 Grey N/O 2 Grey 16 | P a g e...
COMMUNICATIONS The P50 utilises an Isolated RS485 communication setup standard on all models. The Modbus RTU protocol is used for all real time data and configuration settings. Modbus RTU All sensor readings and configuration settings are available via the RS485 Modbus RTU network.
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The alarm trigger register is a bitwise register indicating if the P50 is in an alarm condition, zero indicating no alarm condition. The alarm register bits are only active when the alarm levels has been set on the P50.
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Register Description Unit Pass Word Level 40129 CH4/VOC Delay Up 65535 Sec/10 40130 CO Delay Up 65535 Sec/10 40131 Smoke Delay Up 65535 Sec/10 40133 O2 Delay Up 65535 Sec/10 40139 CO2 Delay Up 65535 Sec/10 40142 WS Delay Up 65535 Sec/10 40145...
Spare MAINTENANCE PROCEDURES Calibration To ensure the correct operation and legal compliance, the P50 is to be submitted for calibration on a 6 monthly basis. The calibration includes a detailed functionality check and all gas sensors are tested and certified to comply with the required operational specifications.
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2. Ensure there are no kinks, twists, or holes in the gas pipe. 3. Ensure the gas pipe is correctly fitted to the gas hood. 4. Extend the pole to a comfortable length in order for the P50 to fit correctly and securely into the gas hood.
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Figure 5 – Maintenance of your P50 Ensure that these points are Wiped clean Dirt and built up of debris will impact on accuracy of readings 23 | P a g e...
FAULT FINDING General Ensure there is no damage to the unit, this will void the warranty and the IS approval where applicable Ensure the correct cable is used, IS certification will indicate the correct cable for IS installations. For non-IS installations, the incorrect cable will result in larger voltage drops and the unit may not function as intended.
Ningi (PTY) LTD was negligent regarding the design or manufacture of the part. P50 is a registered trademark of Ningi (PTY) LTD. Ningi (PTY) LTD does not assume liability for the use of this product beyond the original purchase price of the product.
The intent and purpose of this Product Risk Assessment and Risk Minimization document is to aid and assist the product owner in the safe operation of the P50 Environmental Monitor and to identify and outline any known risks associated with not only the product itself but also its associated operational functionality.
RISK IDENTIFICATION The following list by association is the possible risks identified with the P50 holistically, its operational, or physical functionality. Corrective or mitigated actions and methodology of managing such risks are documented herein to indicate a systematic process to ensure that legislative compliance and best quality of service can be obtained within a reasonable and practicable timeframe and/or cost to suit both manufacturer and customer.
(Group II) shall be covered by an IA certificate. • SANS 10086-2:2006 The P50 fully complies and is certified to form part of a system loop approval which is regulated by the above SANS 10086-2 standard. IDENTIFIED REGULATORY RISK It is common in the field of engineering and production that changes is regulatory,...
RSK-NS-P50. The appropriate action as indicated in RSK- NS-P50 should then be followed as the best course of action. Data analysis includes a relevant and up to date calibration certificate for each P50 environmental monitor.
INCIDENT INVESTIGATION Incident investigation shall commence where the risk assessment and risk register steps have been followed and exhausted to no avail. The incident investigation shall engage all elements of the incident and the process shall follow whichever course is necessary to produce the required outcome which will lead to full close-out of the investigation immediately preceded by a full investigation report to follow.
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