Cdi-torque MULTITEST Government User Manual Page 53
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Using the MULTITEST Torque Calbration System
Testing Power Tools
The dynamic torque characteristic of a power tool and the static
torque applied when using a wrench usually result in different
torque readings. Spinning electric and pneumatic motor
armatures contain inertia that produces a higher torque reading
than what is actually absorbed by a practical fastener. The
difference is also due to individual fastener installation
characteristics that exhibit anywhere from a gradually increasing
run-down torque, (soft-joint) to a free speed, sudden dead stop,
(hard-joint). The way in which a particular operator responds to
the tool’s reaction forces can also be reflected in the resulting
torque measurements.
A joint rate simulator is required when testing a power tool to
allow start-up rotation of the tool’s armature. The simulator is
experimentally adjusted to replicate the average joint hardness
of the intended work. Joint rate simulators that may be used
with transducers ranging from 50 in lb to 1000 in lb are:
• 50 in lb max, 1/4" internal square drive for use on 2000-6-02
transducer, part number 900-0,
• 400 in lb max, for use on 2000-7-02 transducer, part number
900-2-0, or
• 1000 in lb max, for use on 2000-8-02 transducer, part number
900-3-0.
Be sure to operate any pneumatic or electrical power
tool according to the manufacturer’s recommendations.
Non-Impact Tools
Be sure the MULTITEST transducer is capable of handling the
intended torque to avoid damaging transducer. Always operate
the system with the power on.
WARNING
Do not use this equipment with the power off.
Always turn on the indicator and loader so the
torque and load values are indicated on the display.
The safety relays only work when the power is on.
1. To program the MULTITEST Indicator, refer to Chapter
3–Set Up and Programming in this manual. Use SET
HIGH and SET LOW limit alert, data STORE, display
CLEAR, printer SEND and STATistical analysis features.
2. Press UNIT to select the desired engineering unit of
measure as displayed on the LCD display. It is easiest
to match that of the tool under test.
WARNING
- MULTITEST 1
- 3.75 - 50 in lb 3
- Table of Contents 4
- Table of Illustrations 7
- Using this Manual 9
- Using This Manual 10
- Safety Messages 10
- ! DANGER 10
- ! WARNING 10
- ! CAUTION 10
- Safety Information 11
- Introduction 15
- Introductio n 16
- Description and 17
- Specifications 17
- Functional 17
- B — Transducer (Accessory) 18
- C — Loader 18
- D — Roll Cabinet 18
- MULTITEST Indicator 19
- Front Panel 19
- F — Maximum Range Display 20
- Rear Panel (Input/Output) 23
- D — PRINTER PORT (DB-9P) 24
- E — OPTIONAL (DB-9P) 24
- F — TRANSDUCER INPUT (DB-37S) 24
- G — VOLTAGE SELECT 24
- Torque/Force Transducers 29
- Setup and 31
- Programming 31
- Setup and Programming 32
- MULTITEST Indicator Controls 33
- Powering the Equipment 34
- 4-in-1 Transducer Select 34
- Programming Setup 35
- Programming AUTO CLEAR 37
- DATA LIST Memory 39
- Clear Single Memory Location 40
- Setting Up Printer/PC Ports 41
- Selecting Printer/PC Ports 41
- Encoders 43
- Set Up Torque-Angle Algorithm 45
- Using the Multitest 49
- Torque Calibration System 49
- Screwdrivers 50
- Testing Power Tools 53
- Non-Impact Tools 53
- Figure 4-3: Value Display 57
- Printing Statistical Analysis 58
- Displaying Data List on LCD 59
- Connector) 61
- Measuring Torque and Angle 62
- Torque Only 62
- Angle Only 63
- Torque-Angle Algorithm 64
- Calibration 65
- Mounting Details 66
- Calib ration 68
- Quick Check 69
- Torque/Force Calibrations 72
- Equipment 75
- Procedure 75
- IMPORTANT 75
- Gravitational Effects 77
- Correction Factor for Weights 78
- 2000-600-02 79
- Manual Loader 79
- Functional Description 80
- Torque Tester/Calibrator 81
- 2000-600-02 Manual Loader 81
- A — Transducer Mounting 82
- B — Hand Crank 82
- Loader Rear Panel Controls 84
- Ball Handle Adaptor 85
- 4-in-1 Transducer (Accessory) 86
- Extension Arm (Accessory) 87
- Types of Loader Testing 88
- Force Testing 89
- Appendix 91
- Accessories 91
- Calibration Accessories 95
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