CONFIGURING
THE METER
USING
OUTPUT SCALE AND OFFSET ("OT.S.O")
Output Scale and Offset displays only if your meter has analog output
capabilities. Output Scale and Offset ("OT.S.O") scales your
analog output to be equal to the meter's display and/or any engineering
units you require. You may scale the output for direct (4-20 mA, 0-10
V, etc) or reverse acting (20-4 mA, 10-0 V, etc).
1. Press the MENU button until the meter shows "OT.S.O".
2 Press the  /MIN
button. The meter shows "RD 1" (Read 1).
Note: This is your first point of display reading.
3. Press the /MIN
button again. The meter shows the last stored number (-1999 through 9999)
with flashing 4th digit.
4. Press the  /MAX
button to change the value of Read 1.
5. Press the /MIN
button to scroll to the next digit.
6. Press the MENU button to store your selection. The meter
shows "OUT.1" (Output 1).
Note: This starting analog signal corresponds to your Read 1
display.
7. Press the /MIN
button. The meter shows the selected output.
Note: If you select "O.2=V" for voltage, the maximum
signal you may select is 10.00 for an 0-10 V signal output. If you select
"O.2=C" for current, the maximum signal you may select is 20.00
for 0-20 or 4-20 mA dc signal output.
8. Press the /MAX
button to enter the output 1 signal selection. If you continue to press
the /MAX
button, the flashing digit's value continues to change.
9. Press the /MIN
button to scroll to the next digit.
10. Press the MENU button to store your selection. The meter
shows "RD 2" (Read 2).
Note: This
is your second point of display reading.
11. Press the /MIN
button. The meter shows the last stored 4-digit number (-1999 from 9999)
with flashing 4th digit.
12. Press the /MAX
button to change the value of the flashing digit. If you continue to press
the /MAX
button, the flashing digit's value continues to change.
13. Press the /MIN
button to scroll to the next digit.
14. Press the MENU button to store your selection. The meter
shows "OUT.2" (Output 2).
Note: This analog signal should correspond to your Read
2 display.
15. Press the /MIN
button. The meter shows the selected output.
Note: If you select "O.2=V" for voltage, the maximum
signal you may select is 10.00 for an 0-10 V signal output. If you select
"O.2=C" for current, the maximum signal you may select is 20.00
for a 0-20 or 4-20 mA signal output.
16. Press the /MAX
button to change the value of the flashing digit. If you continue to press
the /MAX
button, the flashing digit's value continues to change.
17. Press the /MIN
button to scroll to the next digit.
18. Press the MENU button to store your selection. The meter
momentarily shows "STRD", followed by "TH.OF".
 If the meter
shows flashing values on any item, the value has overflowed. Press the
/MAX
button to start new values.
EXAMPLE
for OUTPUT SCALE and OFFSET
You want to send 4-20 mA output for 32.0º to 212.0ºF. The
meter has 0.1degree resolution.
Complete the following steps:
1. Press the MENU button until the meter shows "OT.S.O".
2. Press the /MIN
button. The meter shows "RD.1" (Read 1).
3. Press the /MIN
button again to show the existing value.
4. Change the value of "RD 1" to 32.0 by pressing the /MAX
and the /MIN
buttons.
5. Press the MENU button to store your selection. The meter
shows "OUT.1" (Output 1).
6. Press the /MIN
button to show the existing value.
7. Change the value of "OUT.1" to 04.00 by pressing the
/MAX
and the /MIN
buttons.
8. Press the MENU button to store your selection. The meter
shows "RD.2" (Read 2).
9. Press the /MIN
button to show the existing value.
10. Change the value of "RD 2" to 212.0 by pressing the
/MAX
and the /MIN
buttons.
11. Press the MENU button to store your selection. The meter
shows "OUT.2" (Output 2).
12. Press the /MIN
button to show the existing value.
13. Change the value of "OUT.2" to 20.00 by pressing the
/MAX
and the /MIN
buttons.
14. Press the MENU button to store your selection. The meter
shows "STRD".
CORRECTING
THERMISTOR TEMPERATURE OFFSET ERROR ("TH.OF")
Before You Correct
the Thermistor Temperature Offset
Thermistor Temperature Offset Error Correction enables you to compensate
for temperature offset error due to the thermistor transducer:
Thermistor temperature curves are highly nonlinear, therefore take care
in obtaining the offset error (which is mainly due to the probe lead resistance).
To obtain the best and most accurate result, study the following tables.
Determine your input type and check the corresponding maximum permissible
offset error and equivalent lead resistance.
Table 1
Maximum Correctable Offset Error and Equivalent Lead Resistance
44004, 44005 and 44006 Input Types
|
#
|
Temperature
|
44004
|
44005
|
44006
|
|
ºC
(ºF)
|
Ohm
|
ºC
(ºF)
|
Ohm
|
ºC
(ºF)
|
Ohm
|
|
2
|
60ºC (140ºF)
|
1(1.8)
|
20
|
.7(1.26)
|
20
|
.20(.36)
|
20
|
|
3
|
80ºC (176ºF)
|
1(1.8)
|
9
|
1(1.8)
|
12
|
.5(.9)
|
20
|
|
4
|
100ºC (212ºF)
|
1(1.8)
|
4.5
|
1(1.8)
|
6
|
1(1.8)
|
20
|
|
5
|
120ºC (248ºF)
|
1(1.8)
|
2.3
|
1(1.8)
|
3.1
|
1(1.8)
|
12
|
|
6
|
140ºC (284ºF)
|
2(3.6)
|
2.6
|
1.5(2.7)
|
2.7
|
1(1.8)
|
7
|
Table 2
Maximum Permissible Offset Error and Equivalent Lead Resistance
44007, 44008 and 44016 Input Types
|
#
|
Temperature
|
44004
|
44005
|
44006
|
|
ºC
(ºF)
|
Ohm
|
ºC
(ºF)
|
Ohm
|
ºC
(ºF)
|
Ohm
|
|
2
|
60ºC (140ºF)
|
.5(.9)
|
20
|
-
|
-
|
.2(.36)
|
20
|
|
3
|
80ºC (176ºF)
|
1(1.8)
|
20
|
.2(.36)
|
20
|
.5(.9)
|
20
|
|
4
|
100ºC (212ºF)
|
1(1.8)
|
10
|
.3(.54)
|
20
|
1(1.8)
|
20
|
|
5
|
120ºC (248ºF)
|
1(1.8)
|
5
|
.6(1.0)
|
20
|
1(1.8)
|
10
|
|
6
|
140ºC (284ºF)
|
1(1.8)
|
2.9
|
1(1.8)
|
17
|
1(1.8)
|
6
|
Table 3
Maximum Permissible Offset Error and Equivalent Lead Resistance
44018 Input Type
|
#
|
Temperature
|
44018/700
|
|
ºC
(ºF)
|
Ohm
|
|
2
|
60ºC (140ºF)
|
-
|
-
|
|
3
|
80ºC (176ºF)
|
1(1.8)
|
147
|
|
4
|
100ºC (212ºF)
|
1(1.8)
|
88
|
|
5
|
120ºC (248ºF)
|
-
|
-
|
|
6
|
140ºC (284ºF)
|
-
|
-
|
The following steps
enable you to calibrate for the offset.
1. Press the MENU button until the meter shows "TH.OF".
2. Press the /MIN
button. The meter will show the previous offset value (4th digit flashes).
3. Press the /MIN
button again. The meter will show the reading temperature (no digits flash).
| 4. |
a.
b. |
If
the value is correct, press the MENU button. The meter will
show "STRD" and 0 value will be entered at the offset.
If the value is not correct, enter the actual temperature using
the /MAX
and the /MIN
buttons. |
5. Press the MENU button to store new reading temperature.
NOTE 1: Select a higher temperature for a more accurate result.
NOTE 2: If values are greater than the maximum correctable offset
error the meter will flash "ER" and will not store the new values.
NOTE 3: Temperature unit is either Celsius or Fahrenheit and always
displays at 0.01 degree resolution and automatically changes to .1 degree
resolution if necessary.
|
Home
TOC 
Back 
Next