MXLC
P. 3 / 5
EM-1704 Rev.7
■
SENSOR ADJUSTMENTS USING AN ACTUAL LOAD
1. Program Mode
Set ITEM 01 – DATA 2 to turn the unit into Program
Mode.
2. Excitation Voltage
Choose ITEM 05. Press Data UP or DOWN key until the
data display shows the desired excitation voltage. When
the value calculated by [Excitation / Resistance] exceeds
30mA, set a voltage value to fit with 30mA limit.
[E.G. 1]
Max. excitation voltage
10V
Strain gauge resistance
120
Ω
If you choose 10V as the excitation:
10V / 120
Ω
= 83.3mA ––
> out of allowable range
Then you will choose 3.6V or less as calculated by the
equation below:
30mA
×
120
Ω
= 3.6V
3. 0% Input Voltage
Choose ITEM 07. With no load applied to the sensor, press
DATA UP or DOWN key until the display value is stabi-
lized (while the computation circuit of the unit conducts
averaging process).
DATA display shows the approximate offset voltage.
Display Value = Sensor Voltage
×
Internal Coefficient*
4. 100% Input Voltage
Choose ITEM 08. With an actual known load, press DATA
UP or DOWN key until the display value is stabilized
(while the computation circuit of the unit conducts averag-
ing process).
Data display shows the sensor's sensitivity span.
5. Monitor Mode
Set ITEM 01 – DATA 1 to turn the unit into Monitor Mode.
6. PV Indication
Press ITEM UP or DOWN key until ITEM display indi-
cates "P".
If necessary, go to Display Range Scaling, Moving Average,
and other adjustments.
Set the unit to Monitor Mode with ITEM P displayed other
than for programming.
*If 100% load is not available, use the load ratio setting.
With 10% load, set ITEM 09 – DATA 10.0 before adjustments.
■
SENSOR ADJUSTMENTS BY ENTERING VALUES
1. Turn the unit into Program Mode.
2. Excitation Voltage
Choose ITEM 05. Press DATA UP or DOWN key until the
data display shows the desired excitation voltage. When
the value calculated by [Excitation / Resistance] exceeds
30mA, set a voltage value to fit with 30mA limit.
[E.G. 1]
Max. excitation voltage
10V
Strain gauge resistance
120
Ω
If you choose 10V as the excitation:
10V / 120
Ω
= 83.3mA ––
> out of allowable range
Then you will choose 3.6V or less as calculated by the
equation below:
30mA
×
120
Ω
= 3.6V
3. 0% Input Voltage
Choose ITEM 07. With no load applied to the sensor, press
DATA UP or DOWN key until the display value is stabi-
lized (while the computation circuit of the unit conducts
averaging process).
DATA display shows the approximate offset voltage.
Display Value = Sensor Voltage
×
Internal Coefficient
4. Sensor's Sensitivity
Choose ITEM 06. Press DATA UP or DOWN key until the
display shows desired value as specified in the sensor's
specification sheet.
5. Turn the unit into Monitor Mode.
6. Set to ITEM P.
If necessary, go to Display Range Scaling, Moving Average,
and other adjustments.
Set the unit to Monitor Mode with ITEM P displayed other
than for programming.
■
DISPLAY RANGE SCALING
[E.G.] PV display range 0.0 to 100.0 modified to show -2000
to 2000
1. Turn the unit into Program Mode.
2. Decimal Point Position
Choose ITEM 16 – DATA 0.
3. 0% Scaling Value
Choose ITEM 15 – DATA -2000.
(Negative [-] range is identified with the PL1 turned on.)
4. 100% Scaling Value
Choose ITEM 15 – DATA 2000.
5. Turn the unit into Monitor Mode.
6. Set to ITEM P.
18
2
0, 1, 2, 3
Contact input function
0 : Tare adjustment
0
1 : Peak hold
2 : Valley hold
3 : Sample hold
20
2
0, 1 – 60
Power-saving mode
0 : Continuous display
10
1 – 60 : Time before display turned off (minutes)
21
2
-1.00 – 1.00
Output code V1
0% output voltage (V) *
2
-1.00
22
2
-1.00 – 1.00
100% output voltage (V) *
2
1.00
21
2
-10.0 – 10.0
Output code V2
0% output voltage (V) *
2
-10.0
22
2
-10.0 – 10.0
100% output voltage (V) *
2
10.0
21
2
0.0 – 20.0
Output code Z1
0% output current (mA) *
2
4.0
22
2
0.0 – 20.0
100% output current (mA) *
2
20.0
23
N/A
–
ROM version
–
*1: Of the range set in ITEM 06/07/08. ITEM 14 < ITEM 15. *2: ITEM 21 < ITEM 22.
MDF.
CODE
ITEM
DATA
CONTENTS
DEFAULT
