Ashcroft 5503 Series Kurulum ve Bakım Talimatları Kılavuzu - Sayfa 5

Ölçüm Cihazları Ashcroft 5503 Series için çevrimiçi göz atın veya pdf Kurulum ve Bakım Talimatları Kılavuzu indirin. Ashcroft 5503 Series 7 sayfaları. Differential pressure gauges

Sayfayı Yazdır

Ashcroft 5503 Series Kurulum ve Bakım Talimatları Kılavuzu

Installation and Maintenance Instructions for

5503 Differential Pressure Gauges

7.4.3 Contact function

Function 1: Close contacts with the indication rising in a

clockwise direction.

Function 2: Open contacts with the indication rising in a clock-

wise direction.

Contact assignment:

1st contact left indicator.

2nd contact middle indicator.

3rd contact right indicator.

Please refer to the electric contacts datasheet for further

details.

7.5 Subsequent relocation of the gauge (by the customer)

Recommendation: Do not remove the pressure

gauge from one pressure monitoring location to

another, 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 undertaking servicing work on the device, the pressure

lines must be depressurized, the electrical connections

isolated, and secured against being switched back on.

8.2 Gauge performance and recalibration

The check on function 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.

All sales subject to standard terms and conditions of sale. 5503_gauge_i&m_RevA_07-18-19

• 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.

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 In the event of failure

All defective or faulty devices must be taken out of service.

If a repair is required, the device must be sent directly to our

Repairs Department. Please contact your Ashcroft distributor or

Ashcroft directly for complete instructions.

9.3 Indications of failure

• Jerky or random movement of the pointer

• Pointer does not set to zero with pressure applied to both

sides

• Indications that the measurement system seal (diaphragm)

has been breached (discoloration to dial display or of filling

liquid)

• Bent or loose pointer

• Cracked window

• Leaks when the device is filled

• Damage to housing

In these instances, repair or replacement of the pressure gauge

is always required.

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 pressure lines must be

depressurized, the electrical connections isolated and

secured against being switched back on.

• Dismount 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.