RST Instruments Ltd
Mechanical Telltales
Mechanical Telltales
Mechanical Telltales Mechanical Telltales

MECHANICAL TELLTALES

CATEGORY > Extensometers + Compressometers

MECHANICAL TELLTALES

BROCHURE

Description

The Mechanical Telltales from Trolex’s RMT product line are low-cost, visual tools for monitoring movement in a tunnel roof, typically for use in underground mines. There are 3 models of telltales: Auto-Warning Telltale (AWTT), Mechanical Telltale and Rotary Telltale. All models include a visual scale for monitoring movement (in mm). The AWTT model also includes LED’s for indication of movement above a set threshold, from a further distance.

All models use spring leg anchors for ease of installation up-hole from the roof. The AWTT model is ATEX/IECEx rated for use in hazardous environments (see specifications for more details).

Applications

Fully proven in coal mine tunnels.


Mechanical Telltale + Rotary Telltale:

Typically installed in vertical boreholes close to the face and near to the centre of the heading as part of the normal cycle by purpose trained personnel.


Auto-Warning Telltale:

Typically installed in vertical boreholes where access may become restricted or would constitute a high risk for direct or close-up viewing.

Quick Specs

Mechanical Telltale:

Visual displacement reading in mm with traffic light warning system.


Rotary Telltale:

Visual displacement reading in mm with traffic light warning system, rotary dial - removes parallax error as it is easier for the user to take readings on the rotary face.


Auto-Warning Telltale:

Gives a visible indication (flashing LEDs) when triggered by a pre-set level of strata movement.

Once triggered, the AutoWarning Telltale flashes for months or until manually reset.

Visual displaceent reading in mm with traffic light warning system at pre-set threshold level.

Benefits

Increase Safety


High Reliability


Increase Productivity


Technical Support

CONTACT US

RST Instruments Ltd.

11545 Kingston Street
Maple Ridge, BC
Canada V2X 0Z5

604-540-1100

1-800-665-5599

Fax: 604-540-1005

info@rstinstruments.com

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CONTACT US

RST Instruments Ltd.

11545 Kingston Street
Maple Ridge, BC
Canada V2X 0Z5

604-540-1100

1-800-665-5599

Fax: 604-540-1005

info@rstinstruments.com



CONNECT WITH RST

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Youtube icon
Subscribe

ASK A QUESTION

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