truflo OBS Series Plastic Gauge and Isolator Instruction Manual

truflo OBS Series Plastic Gauge and Isolator

Product Information

Specifications:

Refer to data sheet for detailed specifications.

Product Usage Instructions

Safety

WARNING! Always ensure proper safety measures are followed during installation and usage of the gauge.

Installation

When installing the gauge connection into the application, follow these steps:

1. Use the wrench area (above the threaded portion) to thread in and tighten the gauge.
2. Do not use the gauge case to install the gauge to avoid loss of accuracy or mechanical damage.
3. Ensure gauge connection compatibility with mating connection and assemble appropriately.
4. If mating parts do not seal completely, consider using a sealing material.

Always pressure test for leaks to ensure all connections are properly sealed after installation.

Storage

Keep the gauge in its original packaging until installation to protect it from mechanical damage and environmental conditions.

Maintenance/Repairs

Regularly check the gauge for proper functioning. When removing the gauge from the application:

• Make sure there is no pressure in the system and all system media is isolated from the gauge.
• If the gauge is damaged or out of calibration, install a new gauge. Do not attempt to recalibrate the gauge.
• Misuse or misapplication of the gauge could lead to gauge failure, equipment damage, or personal injury.

FAQ

Q: Are the gauges compliant with RoHS regulations?

A: Yes, the gauges are RoHS compliant.

Q: How should I relieve internal pressure changes in the gauge case after installation?

A: After installation, you can cut the vent plug to relieve internal pressure changes induced by environmental pressure and temperature changes. Ensure that if the gauge is liquid-filled, only open the vent plug when it is in a vertical position.

Q: What standards are applicable to these gauges?

A: The applicable standards include EN 837-1, EN 837-2, ASME B40.100, and 2014/68/EC Pressure Equipment Directive.

Always Pressure Test for Leaks to Ensure All Connections are Sealed

APPLICABLE STANDARDS

• EN 837-1
  Bourdon tube pressure gauges, dimensions, metrology, requirements and testing.

• EN 837-2
  Selection and installation recommendations for pressure gauges.

• ASME B40.100
  Pressure gauges and gauge attachments

• 2014/68/EC
  Pressure equipment directive.

• Specifications:
  Refer to Truflo OBS Series data sheet

SAFETY

WARNING!
Before installation be certain the appropriate gauge has been selected considering operating pressure/full-scale pres-sure/proof pressure, wetted material requirements, media compatibility, operating temperature, vibration, pulsation, desired accuracy and any other gauge component related to the service application (including the potential need for protective attachments and/or special installation requirements). Failure to do so could result in equipment damage, gauge failure and/or personal injury. Only qualified personnel should be permitted to install and maintain pressure gauges.

INSTALLATION

When installing the gauge connection into the application, use the wrench area (above the threaded portion) to thread in and tighten the gauge. Do not use the gauge case to install the gauge. This could result in loss of accuracy, excessive friction, or mechanical damage to the pressure element or gauge case.
The gauge connection must be compatible with the mating connection and must be assembled appropriately. If the mating parts do not seal completely, a sealing material may be considered.

Always Test System for Leaks to Ensure All Connections are Properly Sealed

After installation the vent plug can be cut to relieve internal pressure changes in the gauge case that otherwise would have been induced by environmental changes in pressure and/or temperature. Without being vented this change in internal pressure could adversely affect the accuracy of the gauge. If liquid filled, only open vent plugs when the plug is oriented in the vertical position.

STORAGE

Gauge should remain in original packaging until installation. This will protect from mechanical damage as well as environmental conditions.

MAINTENANCE/REPAIRS

• Check regularly to ensure the gauge is in good working order. When removing the gauge from the application make sure there is no pressure in the system and all system media has been isolated from the gauge. If gauge is damaged or out of calibration a new gauge must be installed.
• These gauges are not to be re-calibrated.
• Misuse or misapplication of this gauge could result in gauge failure, equipment damage and/or personal injury.

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