HP Scitex LX850 HP Scitex LX850 & LX820 Printers: Site Preparation Guide - - Page 14

Grounding, Air supply requirements (pneumatic spindle), Air pressure supply, Pneumatic connector

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Site preparation Grounding The printer must be connected to a good quality, dedicated ground line in order to avoid electrical risk. Please note your obligation to comply with the National Electrotechnical Code (NEC) in the county of installation. The following grounding tasks must be fulfilled to meet the site preparation requirements: ● Grounding wires should be insulated and at least equal in size to the phase conductors. ● Ground impedance must be less than 0.5 Ω. ● The installation of a single point and dedicated ground. ● Power stabilizer equipment that is supplied by three uninterrupted phase wires and one uninterrupted copper ground wire from the main building service panel. These should run in the same conduit and should be at least equal in size to the phase wires. Air supply requirements (pneumatic spindle) Air pressure supply The pneumatic spindle requires an air compressor or pressurized air line that must be provided by the customer. TIP: HP recommends that you use an air compressor with a pressure gauge that measures in bars. Table 2-7 Air supply specifications Specification Air pressure 5.5 bar (80 psi) (required) Minimum airflow 30 liters/minute (1.06 cubic feet/minute) Lubricator (not required) Not recommended Air filter (recommended) Recommendation: 5 μm, auto-drain, 99.97% coalescing efficiency Regulator (required) Regulator with pressure gauge Pneumatic connector The printer comes with an air gun that you must attach to your air supply. In order to connect your air supply to the air gun, you must meet the following requirements: ● 6.35 mm (0.25 in) female connector, BSP or NPT thread ● Teflon tape to secure the connection and prevent air leaks 10 Chapter 2 Site preparation ENWW

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Grounding
The printer must be connected to a good quality, dedicated ground line in order to avoid electrical risk.
Please note your obligation to comply with the National Electrotechnical Code (NEC) in the county of
installation.
The following grounding tasks must be fulfilled to meet the site preparation requirements:
●
Grounding wires should be insulated and at least equal in size to the phase conductors.
●
Ground impedance must be less than 0.5
Ω
.
●
The installation of a single point and dedicated ground.
●
Power stabilizer equipment that is supplied by three uninterrupted phase wires and one
uninterrupted copper ground wire from the main building service panel. These should run in the
same conduit and should be at least equal in size to the phase wires.
Air supply requirements (pneumatic spindle)
Air pressure supply
The pneumatic spindle requires an air compressor or pressurized air line that must be provided by the
customer.
TIP:
HP recommends that you use an air compressor with a pressure gauge that measures in bars.
Table 2-7
Air supply specifications
Specification
Air pressure
5.5 bar (80 psi) (required)
Minimum airflow
30 liters/minute (1.06 cubic feet/minute)
Lubricator (not required)
Not recommended
Air filter (recommended)
Recommendation: 5
μ
m, auto-drain, 99.97% coalescing efficiency
Regulator (required)
Regulator with pressure gauge
Pneumatic connector
The printer comes with an air gun that you must attach to your air supply. In order to connect your air
supply to the air gun, you must meet the following requirements:
●
6.35 mm (0.25 in) female connector, BSP or NPT thread
●
Teflon tape to secure the connection and prevent air leaks
10
Chapter 2
Site preparation
ENWW
Site preparation