Introduction; Unpacking; Description - Check-line CTM Operating Manual

4.0 Changing Sheaves
As you use the CTM on different diameter cables you must change to the
Do not use the CTM with cable
correct sheave size. To change sheaves, remove the hex head screws
larger than indicated on the
pointed out in Figure 6 below. Replace the sheaves with the correct letter
sheaves. Overload and dam-
sheave and reinsert the screws and tighten.
age to the instrument may
result.
Insure sheaves installed agree with sheaves noted in the Wire calibration.
Exception: Sheaves match the wire diameter of the cable to be measured
Do not mix sheave sizes. This
and alternate calibration is selected as per section 5.2.
will result in inaccurate mea-
Insure that the wire rope is riding in the groove of all three sheaves.
surement and possible over-
load.
Changing sheaves
Screws
Figure 7
14

1.0 Introduction

This manual covers the setup and operation of the CTM Clamp Line Ten-
siometer. The CTM is a simple, accurate strand dynamometer. It is can be
clamped onto a cable, accurately determine the wire tension and be re-
moved in seconds.
The CTM can handle multiple wire diameters, it can display live tension, dual
live/peak tension, average tension captured from several tests, dual tension/
temperature display and a check-tensioning graphical display.
With its battery-powered electronic interface, setup and operation is made
simple with on-screen prompts.
This manual covers the following:

• Unpacking

• Setup
• Operation
• Maintenance
• Troubleshooting
When you receive your CTM, unpack it and inspect the container and the
1.1 Unpacking
instrument for any damage. Report any problems to the shipping company
immediately and save the packing materials.
Insert 2 AA batteries into the battery compartment, shown in Figure 1. Your
CTM probably comes from the factory with the proper sheave size installed
and calibrated for your application. If not, follow the setup directions later in
section 3.0 Confi guration Mode and 4.0 Changing Sheaves.
The CTM is shown in Figure 1 with the parts labeled.

1.2 Description

Figure 1
Lever arm
Sheaves
Support arm
Front panel
3
Battery
compartment