CONFIGURING
THE METER
SELECTING THE INPUT TYPE ("INPT")
Note: Refer to Table B-2 for a summary list
of menu configuration.
To select your appropriate input range, follow these steps:
1. Press the MENU button. The meter shows "INPT".
2. Press the button. The meter flashes one of the following:
* 0 - 10 (for 0-10 volt)
* 4 - 20 (for 4-20 mA)
* 20 - 4 (for 20-4 mA)
* 0 - 5 (for 0-5 volt)
* 1 - 5 (for 1-5 volt)
3. Press the /TARE
button to scroll through available choices.
4. Press the MENU button to store your choice. The meter
momentarily shows "STRD", followed by "DEC.P" (Decimal Point).
SELECTING
A DECIMAL POINT POSITION ("DEC.P")
Note: Refer to Table B-2 for a summary list of menu configuration.
To select a decimal point display position, follow these steps:
1. Press the MENU button until the meter shows "DEC.P"
2. Press the /TARE
button. The meter shows one of the following:
* FFF.F
* FFFF.
* FFFF
* F.FFF
* FF.FF
3. Press the /TARE
button to move the decimal point to the right one position.
4. Press the MENU button to store your choice. The meter momentarily
shows "Stor", followed by "ScAL" (Scaling).
SCALING THE METER
There are two scaling methods.
One method is internal scaling, "int" (scaling without known
loads): you decide upon low and high reading values and manually enter
them through the keyboard. The meter then operates with those new parameters.
Another method is live scaling, "LivE" : you apply low and
high input signals and change the meter reading accordingly. The meter
calculates a new scale factor and then operates with those new parameters.
Internal Scaling
Use internal scaling if you do not have an actual input signal to the
meter. With internal scaling the input values are assumed to be the low
and high signal input based on the selection input (e.g. if you selected
4-20 mA input, the "rd1" input value will be 0400 for
4 mA and "rd2" will be 2000 for 20 mA). All you need
to do is change what the meter should read at these two points. For internal
scaling, follow these steps:
Note:
Refer to Table B-2 for a summary list of menu configuration.
1. Press the MENU button until the meter flashes "ScAL".
2. Press the /TARE
button until the meter shows "LivE".
3. Press the /MAX
button. The meter momentarily flashes "rd1" (read 1), then shows
the low input value based on the selected input range (e.g. if the input
range is 0 - 10 V, the meter shows "0000", or if input range
is 4-20 mA, the meter shows "0400" ).
4. Enter the desired reading for this low input value using the
/MAXand /TARE
buttons.
5.Press the MENU button for the meter to accept the new
value. The meter then momentarily flashes "rd2" , then shows
the high input value based on the selected input range (e.g. if the input
range is 0 - 10 V, the meter shows "9999" or if the input range
is 4-20 mA, the meter shows "2000" ).
6. Enter the desired reading for this high input value using the
/MAX and /TARE
buttons.
7. Press the MENU button for the meter to accept the new
value, save changes and return to the run mode. The meter shows "Stor"
and calculates the new scale factor based on the new high and low values.
8. If the display is not zero with no load on your sensor, press
the /TARE
button. Scaling is now complete.
Live Scaling
Use live scaling when a stable input source is available (e.g. 4-20 mA
or voltage calibrator). Also use live scaling when the actual input from
your sensor can be set to output values close to the low and high ends
of your input. For live scaling, follow these steps:
Refer to Table B-2 for a summary list of menu configuration.
1. Press the MENU button until the meter flashes "ScAL".
2. Press the /TARE
button until the meter shows "ScAL".
3. Press the /MAX
button. The meter momentarily flashes "rd1".
4. Apply the low input signal to the input. The meter then shows
the live low input source.
5. Change the meter reading as required for the applied low input
using the /MAX
and /TARE
buttons.
6. Press the MENU button for the meter to accept the new
value. The meter then momentarily flashes "rd2".
7. Apply the low input signal to the input. The meter then shows
the live low input source.
8. Change the meter reading as required for the applied high input
using the /MAX
and /TARE
buttons.
9. Press the MENU button to save changes and return to the
run mode. The meter shows "Stor" and calculates the new scale
factor based on the new high and low values.
CHANGING
THE METERÆS CALIBRATION
CAUTION: It is not necessary to calibrate a brand new meter, it
arrives completely calibrated. The following procedure modifies the calibration
of the meter.
This procedure should only be performed by qualified personnel with accurate
test equipment.
To change the meter's calibration, follow these steps:
Disconnect the main power from the meter.
1. Install jumper S4 to enable the calibration procedure (refer
to Figure 3-3).
2. Slide the main board back into the case and replace the cover.
3. Power on the meter.
4. Select the input range you want to calibrate (refer to Section
4.1, Selecting Input Range)
5. Press the MENU button until the meter flashes "LINE"
The meter will indicate the line frequency it is currently using. Line
frequency default is 60H for 60 Hz and 50H for 50 Hz.
6. Press the /TARE
button until the correct line frequency shows.
7. Press the MENU button to store this line frequency selection.
Once you store your selection, the meter flashes "cAL".
8. Press the /TARE
button to initiate the calibration procedure. The meter momentarily flashes
the selected input range that you are about to calibrate, then flashes
"rd1" .
9. Apply 0 Vdc or 0 mA and change the display to "0000"
. Use the /TARE
and /MAX buttons
to change the digits.
10. Press the MENU button for the meter to accept the new
value. The meter then flashes "rd2"
11. Apply the high input voltage or current for the selected input
range (e.g. apply 9.900 V if you are calibrating 0-10 V range).
To calibrate the entire meter, you only need to calibrate the following
three ranges: 0-10 V, 0-5 V and 4-20 mA.
Range
|
Low
Input
|
rd1*
|
Input High
|
rd2*
|
0-10V
|
0
Vdc
|
0000
|
9.9
Vdc
|
9900
|
0-5,
1-5V
|
0
Vdc
|
0000
|
5.0
Vdc
|
5000
|
4-20,
20-4 mA
|
0
mA
|
0000
|
20.0
Vdc
|
2000
|
* Disregard decimal
point
12. Change the display to equal the input source (e.g. if you apply
9.900 V for the high input voltage, change the meter reading to "9900").
Press the /MAX
button to change the flashing digit's value (increments by one) and press
the /TARE
button to move from one digit to the next.
13. Press the MENU button once more to save changes. The
meter shows "Stor" and is now calibrated for the selected range.
14. Power off the meter. Remove the S4 jumper (to ensure no accidental
changes). Slide main board back into the case.
15. Power on the meter.
|