Model 407820 Version 3.0 August 2005
4
Meter Operation
Connecting the Sensor
1. This meter accepts only the supplied 15 kg chuck. Push the SENSOR button
to confirm the 15 kg chuck; the LCD should read '15' when the button is
pressed.
2. Connect the chuck's cable to the input jack at the top of the meter.
3. Remove the chuck from the meter when the meter is not in use.
Powering the meter
1. The meter is powered by a 9V battery located in the rear battery
compartment. Note that the meter's protective rubber jacket must be
removed to access the battery compartment.
2. Press the POWER button to turn the meter on.
3. Press the POWER button again to turn the meter off.
Selecting the unit of measure
1. Use the UNIT button to scroll through the available measurement units. Each
selection is reflected on the LCD.
2. The available units are: pound-inch (lb-in), kilogram-centimeter (kg-cm), and
Newton-centimeter (N-cm).
Selecting the resolution
1. Use the RESOLUTION button to select the desired resolution, Low or High.
The selections are listed in the Range Specifications earlier in this manual.
2. Use the high resolution setting when the measurement is in the lower area of
the measurement range. Use the low resolution setting when the
measurement is in the higher regions of the measurement range.
Selecting the response time
The meter can be configured as fast responding (125ms) or slow responding
(334ms). Fast response is used to capture readings that are changing rapidly.
Slow response if used for average readings or slowly changing torque readings.
To select the response time:
1. Press the FAST/SLOW button.
2. The LCD will display 'F' for fast response or 'S' for slow response.
Taking measurements
1. Place a driver bit into the chuck.
2. Tighten the chuck using the supplied chuck key.
3. Push the ZERO button to zero the display.
4. Apply force to the device under test and view the Torque reading on the
meter's LCD.
WARNING:
DO NOT exceed the meter’s specified torque limit (refer to Range
Specification for range limits). Exceeding the torque limit can permanently
disable the sensor load cell.
