SHIMPO DFS User Manual

DFS-Digital Force Gauge

Instruction ManualInstruction Manual

Instruction Manual

Instruction ManualInstruction Manual

Contents

Inspection / Standard Accessories 2 Features and Benefits 2 Important Safety Instructions 2 Set-Up 3

Power 3 Display and Keypad 4 Factory Settings 5 Operation 5-8

How to Tare and Zero the Display 5

Changing the Measuring Mode 5

Changing Units of Measure 6

Setting High and Low Limits 6

Changing Display Update Time 6

Changing Memory Modes 7

Recalling Statistics 8

Setting of Filter 8 Communication with External Devices 9-16

Output Selection 9-13

RS232 10-12 Digimatic 13 Analog 13 Comparator 13

External Control Input 14-15

Congratulations on your purchase of a Shimpo DFS (Digital Force Gauge). We trust you will enjoy many years of professional results from your DFS for force measurement applications.

Please read the entire instruction manual thoroughly before initial set-up and operation; the information contained herein will aid you in operating your Shimpo DFS safely and with excellent results.

If you have any questions regarding our product(s), call your local Shimpo representative or contact Shimpo directly for assistance.

Overload Output 16 Parameter Settings 17 Low Battery Indication 18 Auto Power Off 18 Calibration 18-19 Troubleshooting 19 Dimensions and Specifications 20 Warranty 20

If any damage is apparent, do not unpack the DFS. Notify the shipping carrier immediately for damage claim instructions. Refer to the nameplate to confirm model number ordered and record serial number for future reference.

Items included with the DFS are:

• AC adapter

• (4) AA batteries

• DFS output connector

• Overload protection cable

• Plastic carrying case

Important Safety InstructionsInspection/Standard Accessories

Always wear eye protection when testing materials.

Attachments must be properly installed to the force gauges (hand-tighten only! Do not use wrenches or other tools!).

Never exceed force capacity; if “OVR 1234”

appears on the display, STOP the test immediately to avoid permanent sensor damage.

Features and Benefits

The DFS offers many features and benefits, including:

• Large memory capacity (100 samples plus statistics) enables portable data collection for multi-location usage

• High sampling rate (1000 hz) allows peak force and torque points to be easily captured

• Handheld and test stand mountable - allows flexibility in multiple test set-ups, applications and fixturing

• High and low set points permit measurement of breakaway torque in applications such as child safety cap testing

• External tare and hold control allows hands-free zeroing using a keyboard or foot switch

Never apply a force or load at an angle to the force sensor.

When installing the DFS on a test stand, confirm that the indicator unit is thoroughly secured.

When not in use over an extended period of time, remove batteries to avoid battery terminal corrosion.

Only use the provided AC adapter; usage of any other adapter may damage circuitry.

Check the batteries periodically for corrosion when using the unit under AC power; this will avoid damage and ensure memory backup (refer to “Low Battery Indication” section).

Do not use or store unit in extreme temperatures; normal operating temperature is 32-113°F (045°C).

Do not use or store unit in oily, dusty, or excessively wet areas.

Do not use any chemicals to clean the case; use a wet, soapy cloth.

Set-Up

Power

Every DFS unit is shipped from the factory without the batteries (provided) installed. To install the batteries:

1. Remove the battery plate located at the bottom of the handle using a coin or appropriate screwdriver.

2. Install the (4) AA batteries, observing the proper polarity.

3. Reinsert the battery plate cover, making sure the lip engages properly before tightening.

NOTE: If AC adapter operation is preferred, refer to the “Display & Keypad” section of this manual for AC outlet location.

Display & Keypad

1. Sensor Shaft

2. Low Battery Indicator

3.Peak Indicator (NOTE: Refer to “Changing the Measuring Mode” section for explanation)

4. Main Display

5. Small Display

6. Maximum Reading Indicator

7. Minimum Reading Indicator

8.AC Adapter Port

9. > Button

10. HI-LO Button

11. Unit Button

12. Peak Button (NOTE: Refer to “Changing the Measuring Mode” section for explanation)

13. Recall Button

14. Memo Set Button

15. Reset Button

16. On Button

17. Off Button

18. Overload Output Port

19. Data Output Port

20. Battery Compartment

Factory Settings

Each time the power is turned OFF and ON there are some parameters that the DFS will default to. Consult the section on “Parameter Settings” to customize these default settings. The following chart reflects the default settings as programmed by the factory:

PARAMETER DEFAULT FACTORY SETTING

Display Update 0.125 seconds

Measuring Mode True Peak

Auto Power Off 3 Minutes

Measurement Unit English (Lb, Lb-I or oz-I)

Output RS232

Baud Rate - 4800

Data Length - 8 bits

Stop Pulse - 2 bits

Data End Code - CrLF

Software Flow Control - off

External Trigger Tare

Memory Mode Single

Analog Output Mode On

Filter Off

Operation

How to Tare and Zero the Display

After installing an attachment, it will be necessary to tare the DFS:

1. Press the RESET button while holding down the ON button to tare the display.

2. Press the RESET button by itself when the peak indicator is showing to zero the display. Repeat step 1 if the display does not return to zero.

NOTE: The DFS can tare up to 50% of the remote sensor’s rated capacity.

Changing the Measuring Mode: True Peak Mode/Standard Mode

CAUTION: Depending on which of these two measuring modes is selected, the PEAK button performs two different functions! The DFS will always display an average force when PEAK is not showing on the display. The average measurement is based upon the display update rate chosen (see “Changing Display Update Time” section). When in the True Peak mode, pressing the PEAK button will allow the display to scroll from average to peak “+” (compression or clockwise torque) to peak “-” (tension or counterclockwise torque). When in the Standard mode, pressing the PEAK button will allow the display to scroll from average to maximum display reading “+” to maximum display reading “-”.

Despite showing PEAK on the display, these are not true peak readings; they are the highest average displayed readings since the DFS was last “tared”.

Instructions to change the Measuring Mode are as follows:

1. Press the PEAK button while holding down the ON button. The small display will exhibit “dSP”.

3. Press the PEAK button; the small display will read “PfS” and the main display will show “on” (True Peak) or “oFF” (Standard).

3. Press the > button to toggle between “on” and “oFF”.

Operation (continued)

4. Press MEMO SET button to store the measuring mode and exit.

NOTE: By keeping the true peak mode “ON”, the DFS will always display the peak samples and not a maximum average.

Changing Units of Measure

By pressing the UNIT button, the DFS will scroll between English, Metric, and Newton units; once the DFS is turned OFF the unit will default to the factory setting. Instructions to change the default unit of measure setting are as follows:

1. Press the PEAK button while holding down the ON button; the small display will indicate “dSP”.

2. Press the PEAK button three times; the main display will indicate “init” and the small display will reflect the current default setting.

3. Each time the UNIT button is pressed, the small display will scroll between English, Metric, and Newton units.

4. Press the MEMO SET button to store the default unit setting and exit.

Setting High and Low Limits

It is possible to program high and low limits for applications requiring tolerances. Use the diagram below as a guide for setting the limits.

Instructions to set the high and low limits are as follows:

1. Press the HI-LO button; “∆HI” will be flashing on the small display and whatever limit is already programmed will

be displayed.

2. Press the > button; the entire display will be flashing.

3. Press the HI-LO button to toggle between “+” (compression or clockwise torque) and “-” (tension or counterclockwise torque).

4. Press the > button to scroll across each digit position.

5. Press the HI-LO button to select the numerical value of each digit position.

6. Once the high limit has been programmed, press the MEMO SET button; “∇LO” will be flashing on the small display and whatever limit is already programmed will appear on the main display.

7. To program the low limit, repeat steps 2-5.

8. Once the low limit has been programmed, press the MEMO SET button to store the set points and exit from this function.

The unit of measure will be displayed when the measurement is within the set points. Small “arrows” ( appear on the small display when the measurement is above or below the set points.

The unit of measure will never be displayed if the low limit is set higher than the high limit. This is because it is impossible for the measurement to fall between the setpoints.

Set points can be referenced by pressing the HI-LO button: the first time the button is pressed the display will show the high limit, the second time will show the low limit, and the third time will exit.

To cancel the high and low limits, both settings must be set to zero.

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NOTE: A comparator output is available for “go – no go” testing (refer to “Comparator Output” section).

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