Ashcroft T5500 Instructions d'installation et d'entretien - Page 5
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Installation and Maintenance Instruction for
T5500/T6500 Pressure Gauges
with switching contacts
7.5
Subsequent relocation of the gauge (by the customer)
Recommendation: Do not remove the pressure
gauge from one pressure monitoring location to
i
another place, as there is a risk of the process
media being mixed, with unforeseeable chemical
reactions.
8 Servicing
The device is maintenance-free. However, to ensure reliable
operation and a long lifetime for the device, we recommend
that it is checked regularly.
8.1
Safety
When servicing the pressure gauge, the process pressure
line must be depressurized, the electrical connections
isolated from the mains supply, and special attention should
be taken to ensure process pressure is not applied.
8.2
Gauge performance and calibration
Gauge performance and recalibration is carried out at
regular intervals, depending on the application. The precise
testing cycles should be adjusted in line with the operating
conditions and ambient conditions. In the event of various
device components interacting, the operating instructions
for all other devices should also be taken into account.
•
Check on display.
•
Check on function, in conjunction with downstream
components.
•
Check of pressurized connection pipes for seal
condition.
•
Check of electrical connections.
8.3
Cleaning and maintenance
Cleaning is carried out using a non-aggressive cleaning
agent, with the ventilation valve closed and respecting the
protection category of the device.
9 Faults
9.1
Safety
Defective or faulty pressure gauges put the operational
safety and process safety of the plant at risk, and can lead
to a risk or injury to persons, the environment or the plant.
9.2
Conduct in the event of faults
All defective of faulty devices must be taken out of service.
If a repair is required, contact service department.
Ashcroft Instruments GmbH
Deutschland / Germany
Max-Planck-Str. 1
D-52499 Baesweiler
Tel.: +49 (0) 2401 808-0
©2018 Ashcroft Instruments GmbH IM-T5500KF-EN Rev. A 11/18
P/N 095I111-01EN
All specifications are subject to change without notice. All sales subject to standard terms and conditions.
ashcroft.eu
For more information on support and
local partners please visit our web
page at ashcroft.eu or follow the
QR-Code
9.3
When action is required to repair/replace the gauge:
Possible situations when action should be taken:
•
Jerky or random movement of the pointer
•
Pointer does not set to zero for pressure less display
•
Bent or loose pointer
•
Cracked window
•
Leaks when the device is filled
•
Damage to housing
•
Indications that the measurement system seal (bourdon
tube) has been breached (discoloration to dial display
or of filling liquid)
In these instances, repair or replacement of the pressure
gauge is always required.
9.4
Gauge repair/replacement
See Chapter 7.3 Mounting/Installation
10 Removal, disposal
10.1 Safety
Residues of measuring media in and on
removed gauges can constitute a risk to people,
the environment and equipment. Adequate
precautionary measures must be adopted.
If necessary, the devices must be cleaned
thoroughly (see advice in safety data sheets).
10.2 Removal
•
When servicing the gauge, the process pressure line
must be depressurized, the electrical connections
isolated from the mains supply, and special attention
should be taken to ensure process pressure is not
applied.
•
Remove the gauge using a suitable tool.
10.3 Disposal
Please help to protect the environment
and dispose of or recycle the devices and
components used in accordance with the
applicable regulations.
11 Appendix
11.1 Data sheet for pressure gauge T5500-KF/T6500-KF
Detailed data sheet is available from supplier's website (see
1.6 Manufacturer's address, customer services)
This Table refers to specific documents:
Model
Description
Stainless steel contact gauge
T5500-KF/
open or solid front Model
T6500-KF
T5500-KF and T6500-KF
Electrical contact devices for
K5500
pressure and temperature
gauges
Document
G1.T5500-KF
G1.K5500
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