Bronkhorst®
Instruction Manual EL-PRESS™
9.17.101I
14
For optimal performance, observe the following guidelines:
·
The preferred mounting orientation of the EL-PRESS™ is upright, however, in other positions deviations in accuracy are
generally negligible.
·
Avoid installation in close proximity of mechanical vibration and/or heat sources.
·
Use the equipment in an environment with a stable ambient pressure and temperature.
2.5
Fluid connection
P-500, P-600 and P-700 series
Install the EL-PRESS™ in the process line, in accordance with
the direction of the FLOW arrow on the instrument base.
P-800 series
Install the EL-PRESS™ in the process line, in accordance with the inscriptions on the
instrument body (IN, OUT, RELIEF).
For high flow rates, installing the pressure meter in a separate branch is strongly
recommended (using a T-piece fitting).
Tighten the fluid connections according to the instructions of the supplier of the fittings. The use of Swagelok RS-type
stainless steel adapters and Bronkhorst® elastomer O-rings is recommended.
Check the fluid system for leaks before applying full operating pressure, especially when using hazardous media (e.g. toxic
or flammable).
2.6
Electrical connection
Electrical connections must be made with standard cables or according to the applicable hook-up diagram. The factory
installed 9-pin D-sub settings are indicated in the hook-up diagram. Make sure that the power supply is suitable for the
power ratings as indicated in the hook-up diagram and that double or reinforced insulation is used for the power supply.
EL-PRESS™ instruments are powered with 15…24 Vdc, depending on the fieldbus system (if applicable).
To prevent damage as a result of reversed polarity, the use of a 2A fuse in the Us line is recommended.
The device described in this document contains electronic components that are susceptible to
electrostatic discharge
. In
order to prevent damage, proper handling procedures must be followed during installation, (dis)connecting and removing
the electronics.
The device carries the CE-mark and is
compliant with the concerning EMC requirements
. However, EMC requirements
can only be met using appropriate cables and connector/gland assemblies. Bronkhorst recommends the use of their
standard cables. These cables have the right connectors and loose ends (if any) are marked to help prevent wrong
connection. When using other cables, cable wire diameters must be sufficient to carry the supply current, and voltage loss
must be kept as low as possible. When in doubt, contact your Bronkhorst representative.
When connecting the product to other devices, be sure that the integrity of the shielding is not affected;
always use
shielded cabling for signals and communication and do not use unshielded wire terminals.
Always isolate the electrical power before connecting or disconnecting equipment.
