NS P50 User manual

22 September 2015 P50 Product Manual
P50
Environmental Monitor
Version 4.7

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TABLE OF CONTENTS
INTRODUCTION 3
WARRANTY 4
BEST INSTALLATION PRACTICE 5
SAFETY INFORMATION 8
SENSORS 8
MODELS 13
APPROVALS 14
ELECTRICAL SPECIFICATIONS 15
COMMUNICATIONS 17
MAINTENANCE PROCEDURES 21
FAULT FINDING 24
TERMS AND CONDITIONS 25
ANNEXURE A 26
RISK ASSESSMENT INTRODUCTION 28
RISK IDENTIFICATION 29
STANDARDS AND COMPLIANCE 29
IDENTIFIED REGULATORY RISK 30
HAZARD IDENTIFICATION 31
DATA ANALYSIS 31
INCIDENT INVESTIGATION 32

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Manufactured and Distributed b :
Ningi
22 Langa Crescent
Corridor Hill
Witbank, MP
1035
South Africa
Phone [phone]
Fax [phone]
Sales : [email protected]
Queries: [email protected]
Website: www.ningi.com
Technical Support: [email protected]

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INTRODUCTION
Purpose
The purpose of this manual is to provide the user with a comprehensive guide to
understanding the use, set-up, and the configuration of the P50 Environmental
Monitor to enable the user to obtain best results from the P50.
About
The P50 is a state of the art Environmental Monitor which offers multiple environmental
monitoring sensors and utilizes the ver latest in intelligent technolog to achieve
excellent accurac and is approved and certified compliant for use in explosive
atmospheres (Group I) Underground mines and (Group II) Surface
Sensors
The following sensors are available in configuration on the P50 and can be specificall
setup to operate in var ing environmental climates depending on our requirements;
•Air Velocit
•Methane(CH4)
•Carbon Monoxide(CO)
•Carbon Dioxide(CO2)
•Ox gen(O2)
•Barometric Pressure
•Humidit
•Ambient Temperature
•Volatile Organic Compounds(VOC)
•H drogen sulphide (H2S)
•H drogen (H2)
•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.

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HMI
The P50 operates as a user friendl device with real time data available to the user. All
the measurements and data are available on the 16x2 OLED displa , audio/visual
indicator and RS485 network. All parameters are adjustable via personal computer.
Modbus RTU is standard on all devices which allow communication to the control room.
Audio
The P50 uses a 93dB audible device configured to sound at pre-set alarm levels
depending on the customer’s requirements.
Visual
The visual indication is visible 360° around the unit. Four colours, red, green, ellow and
blue, are standard on all models. Red and green are default for alarm and no alarm
conditions respectivel . Alarms can however be mapped to an of the four colours.
WARRANTY
The P50 carries a one ear limited warrant on all parts and labour.

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BEST INSTALLATION PRACTICE
This section of the manual is intended as a guideline nly for the installation of the P50
environmental sensor as shown in a t pical underground operation.
This guideline does not supersede local authorit or rules for our environment as
installations are required to be approved b the authoritative person responsible for the
ventilation/environmental monitoring where the device is to be located.
Figure 1 – A typical mine installation – Roof Position
The P50 should be installed as illustrated above, that it is correctl positioned from the
roof in order to measure the air velocit and should not be hung in a roof cavit as this
will cause inaccurate readings due to improper flow or air.

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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 Velocit readings the P50 should be positioned ensuring the Sensor
indicated is positioned in the airflow
Air Flow
Sensor to remain in
the airflow
Air Flow

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SAFETY INFORMATION
• Onl a certified electrician is allowed to carr out the electrical installation
• Dangerous voltages can occur on the connectors, even if the auxiliar voltage has
been disconnected
• Breaking the seal on the fixing screws of the device will result in a loss of
warrant
• Electrical safet regulations must alwa s be followed
SENSORS
Air Velocit
Two embedded platinum sensors are used to ensure long term reliable operation in harsh
conditions. Digital signal processing ensures accurate air velocit measurements over the
full specified temperature range.
Specifications
•Sensor range 0 to 5 m/s
•Operating range 0 to 5 m/s (T pe A Model)
•Operating range 0 to 10 m/s (T pe B Model)
•Operating temperature range -10°C to 50°C
•Response time 30 sec
Methane (CH4) P50
High qualit sensors are used to ensure long term reliabilit 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%.
Specifications
•Sensor Range 0 to 100%
•Operating range 0 to 5%
•Operating temperature range -20°C to 50°C
•Response time < 20 sec

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Methane (CH4) P51
High qualit sensors are used to ensure long term reliabilit 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
•Sensor Range 0 to 1000000ppm
•Operating range 0 to 50000ppm
•Operating temperature range -20°C to 50°C
•Response time < 20 sec
Carbon Monoxide (CO)
The CO sensor offers low drift long term stabilit with fast response. To allow for better
resolution the CO sensor is set to measure from 0 to 1 000 ppm.
Specifications
•Sensor range 0 to 2 000ppm
•Operating range 0 to 1 000ppm
•Operating temperature range -20°C to 55°C
•Response time <10 sec
Carbon Dioxide (CO2)
The NDIR (Non Dispersive Infra-red) CO2 sensor technolog offers long term accurate
and fast response for CO2 detection.
Specifications
•Sensor range 0 to 50 000ppm
•Operating range 0 to 50 000ppm
•Operating temperature range -20°C to 50°C
•Response time < 35sec