Varec 6700 - User Manual

Questions and Answers

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Blake CarterAug 5, 2025
What to do if the gaugeboard indicator on my Varec Tank Equipment stopped?
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  Monica RobertsAug 6, 2025
  If the gaugeboard indicator on your Varec Tank Equipment has stopped, several issues could be the cause. First, the cable might be stuck; in this case, check the cable path and inspect the sheave and accessory shafts for freezing, repairing or replacing them as necessary. Second, dirty pipes can cause the indicator to stop; clean them with an automotive-type spray degreaser. Finally, check if the indicator or gaugeboard slides are dirty or damaged; clean them or repair/replace them as needed.
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Kathryn WangAug 13, 2025
Why is the calibration repeatability unstable on my Varec 6700?
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  William PetersonAug 13, 2025
  Unstable calibration repeatability in Varec Tank Equipment can stem from several causes. The indicator or gaugeboard slides might be dirty or damaged; clean them with an automotive-type spray degreaser or repair/replace them. The tape or cable could be off the elbow pulley; remove the elbow covers, reseat the cable, and lubricate the pulley shafts. A worn or corroded pulley shaft/bushing could also be the culprit, requiring repair or replacement. Additionally, a dirty cable pipe/conduit should be removed and cleaned. Lastly, check for loose, kinked, or broken guide cables, and tighten, repair, or replace them as necessary.
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Rebecca ConleyAug 20, 2025
What to do if the indicator is at ground level when the tank is not full on my Varec 6700 Tank Equipment?
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  Joshua FrankAug 20, 2025
  If the indicator is at ground level when the tank is not full on your Varec Tank Equipment, it could be due to a broken cable, which requires replacement. Alternatively, the float might be detached, in which case you should re-attach it.
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Kevin AndersonAug 28, 2025
How to prevent indicator accuracy from being affected by friction in Varec 6700?
- J
  james41Aug 28, 2025
  The accuracy of the indicator in Varec Tank Equipment can be affected by friction if some liquids produce corrosion in the mechanism. Periodic inspection and maintenance provided by a Varec service contract is the suggested solution.

Summary

Safety Precautions

Safety Precaution Definitions

Defines caution and warning levels for safety procedures.

ATEX Exemption

ATEX Classification

Information regarding the ATEX classification of the 6700 Liquid Level Indicator.

Introduction

Getting Started

Overview of the Varec 6700 Low Pressure Liquid Level Indicators and their function.

Accessories

Accessories for transmitting data and signaling functions for the indicator.

Float Ground Kit

Details on the float grounding kit and its diagram.

Installation

Oil Seal Installations

Instructions for installing oil seal accessories for specific tank types.

Installation of Oil Seal, 8.5-Inch Water Column Operating Pressure Model

Step-by-step guide for installing the 8.5-inch water column oil seal model.

Installation of Oil Seal, 27-Inch Water Column Operating Pressure

Step-by-step guide for installing the 27-inch water column oil seal model.

Cone Roof Tank Installation

Detailed steps for positioning and welding anchors for cone roof tanks.

Connecting the Tape to the Float

Procedure for feeding and connecting the tape to the float assembly.

Initial Calibration

Calibration procedure for floats based on water specific gravity.

Initial Lubrication

Applying light oil to moving parts like elbows and sheaves.

Cone Roof Tank (Bolted Installation)

Instructions for bolted cone roof tank installation, including flange and anchor placement.

Reassembly

Reinstalling covers, gaskets, and closing tank openings after installation.

Cone Roof Tank Installation (Fiberglass Tank)

Procedure for installing the indicator on fiberglass cone roof tanks.

Float Installation

Steps for installing top anchors, guide cables, bottom anchor, and tape/cable.

Typical Auxiliary Equipment Installation

Installing auxiliary equipment like elbow drive adapter kits.

Installation of Model 226 for 20 and 24 Inch Manhole Covers with API Drilling

Steps to install Model 226 covers on manholes with API drilling.

General Preparation

General installation preparation, safety precautions, and tool assembly.

Independent Pipe Support Structure

Constructing support structures when welding is not feasible.

Installation of Model 228 Inspection Hatch to Existing Manhole Cover

Modifying existing manhole covers with a Model 228 inspection hatch.

Anchor Bar Installation

Information on anchor bars for in-service installations.

Operation

Initial Operation

Procedure for initial tank filling and verifying float/indicator operation.

Normal Operation

Description of indicator behavior as liquid level changes in the tank.

Calibration and Volume Measurement

Factors affecting tank gauging accuracy and volume calculation.

Maintenance

Periodic Maintenance

Recommended service schedule for long service life and accurate readings.

Electrostatic Discharge Hazard

Precautions regarding electrostatic charges and grounding requirements.

Lubrication

Lubricating moving parts of the elbow and indicator sheaves.

Inspection

Recommended timing for initial and subsequent unit inspections.

Troubleshooting Common Problems

Overview of common issues like friction and corrosion affecting accuracy.

Specifications

Liquid Level Indicator Specifications

Specifications for indicator gaugeboards, sight targets, and floats.

Standard Installation Kits Specifications

Specifications for mounting brackets, housing, wheels, and anchors.

Standard Float Specifications

Specifications for float material, diameter, eyelet centers, and weight.

Bottom Anchor Bar Weight

Weight and material specifications for bottom anchor bar.

Other Specifications

Operating range, service rating, and pipe connections.

Reference Part Numbers

Lists general reference part numbers for components.

Indicator Part Numbers

Part numbers for full travel and half travel indicators.

Float Part Numbers

Part numbers for floats based on material and service type.

Sheave Elbow Part Numbers

Part numbers for various sheave elbow descriptions and services.

Bottom Anchor Bar Weight Part Number

Part numbers for bottom guide wire anchor assemblies.

Oil Seal Accessory Part Numbers

Part numbers for oil seal accessory units based on type and service.

Order Codes

Order Code Table

Table of order codes for application type and board length.

Varec 6700 Specifications

General

Brand	Varec
Model	6700
Category	Tank Equipment
Language	English