Ammonia Detector - Manual
NH3/ENH3
April.10
Automatikprodukter
Electrochemical Transmitter
3
Installation
Note:
Electronics can be destroyed by static electricity.
Therefore, do not touch the equipment without a wrist strap connected to ground or without standing on a conductive
floor.
3.1
Mounting instructions
•
The specific weight of carbon monoxide is
lower than that of air (factor 0.59).
Installation at the
highest point possible with a distance of cirka 300mm to the ceiling.
•
Select the location of the sensor according to local regulations.
•
Consider the ventilation conditions!
Do not mount the transmitter in the center of the airflow (air passages, suction holes)
•
Mount the transmitter at a location with minimum vibration and minimum variation in temperature (avoid direct
sunlight).
•
Avoid locations where water, oil etc. may influence proper operation and where mechanical damage might be
possible.
•
Provide adequate space around the sensor for maintenance and calibration work.
Duct mounting
•
Mount only in a straight section of duct with minimum air vortex.
Keep a minimum distance of 1 m (3,5 feet) from any curve or obstacle.
•
Mount only in a duct system with a
maximum air velocity of 10 m/s
(2000 ft/min) or less.
•
Mounting must be performed so that the airflow is in line with probe openings.
3.2
Installation
•
Open cover of enclosure.
•
Unplug basic PCB from terminal blocks.
•
Fix bottom part by screws vertically to the wall (terminal blocks to the ground).
•
Plug in the basic PCB at X4 and X5.
•
Replace the cover.
4
Electrical Connection
Instruction
Consider static electricity! See 3. Mounting
•
Installation of the electrical wiring should only be performed by a trained specialist according to the connection
diagram, without any power applied to conductors and according to the corresponding regulations!
•
Avoid any influence of external interference by using a shielded cable.
•
Recommended cable: J-Y(St)Y 2x2x0.8LG (18 AWG), maximum resistance 73
Ω
/1000 m (20.8
Ω
/1000 ft)
•
When the PCB is mounted, it is important to ensure that the wire shields or any bare wires do not short the
PCB.
