Before Start-Up; Electrical Connections - Bühler technologies GAS 222.20 DH Guía Rápida

GAS 222.20 DH
• Install the screw connection with sealant, then connect
the sample gas line using an open ring spanner.
• Reinstall the right half-shell. When doing so, be sure the
steam pipe is in the bottom slot in the half-shell.
• Secure the insulation with the four retaining screws.
• Attach the insulating disc, put on the two cap nuts and
tighten carefully.
• Install the cover piece.
After connecting the sample gas line it must be braced and se-
cured with the clamp.
Long sample gas lines may require additional support clamps
along the way to the analysis system! Once all lines have been
connected and checked for leaks, carefully reinstall and secure
the insulation.
WARNING
Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
4.6.2 Connecting the calibrating gas line (optional)
Connecting the calibrating gas line requires a Ø6 mm or Ø1/4"
pipe fitting.
If the calibrating gas connection was ordered with check
valve, a Ø6 mm or Ø1/4" pipe can be connected directly to the
check valve.
4.7 Connecting the Steam Heating
Carefully and properly connect the lines to the existing screw
connections. Ensure adequate thermal insulation to prevent
injuries.
DANGER
Explosion hazard due to high liquid temperatures
Hot steam and hot sample gas cause in a high probe surface
temperature. The highest fluid temperature is approximately
the maximum probe surface temperature.
a) Always ensure a safety clearance of at least 20 K between
the fluid temperature (steam, sample gas) and ignition
temperature of explosive atmosphere (by measuring and
monitoring the temperature).
b) Also be sure to stay well below the smouldering temper-
atures of dust.
c) Observe the relevant requirements in standards regard-
ing the max. permissible surface temperature and igni-
tion temperature of explosive atmosphere.

4.8 Electrical Connections

DANGER
Explosion hazard due to absence of potential equalisa-
tion
The device must be connected to potential equalisation
(earthed) at the designated points.
Please observe the local regulations and guidelines.
10 Bühler Technologies GmbH
5 Operation and Control
NOTICE
The device must not be operated beyond its specifications.

5.1 Before Start-Up

Before starting the device, verify
• the hose- and electrical connections are not damaged and
correct installed.
• no parts of the gas probe have been removed.
• the safety and monitoring devices are installed and func-
tional.
• the gas inlet and outlet of the gas probe are open.
• ambient parameters are met.
• the performance specifications in the type plate are met.
• voltage and frequency in the type plate match the mains
values.
• all connection cables are installed without strain.
• precautions have been taken.
• cable glands are sealed properly.
• the earth is proper and functional.
When used in Ex areas, also verify the probe and all add- on parts are suitable for use (observe type plates and ig-
nition protection markings) and compliance with ap-
plicable Ex regulations.
6 Maintenance
Always observe the applicable safety- and operating regula-
tions when performing any type of maintenance. Please refer
to the original operator's manual on the included CD or online
at www.buehler-technologies.com for maintenance informa-
tion.
7 Service and Repair
Please refer to the original operator's manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
BX460045 ◦ 10/2019