
10JRE
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax:
+81(6)6659-8510 E-mail: info@m-system.co.jp
EM-0815 Rev.6 P. 3 / 4
CHECKING
1 ) Terminal wiring: Check that all cables are correctly
connected according to the connection diagram.
2 ) Power input voltage: Check voltage supplied to the rack
(model: 10BXx). For the DC power source, be sure that
the ripple level is within 10% p-p.
3 ) Input: Check that the input signal is within 0 – 100%
of the full-scale.
(With 20°C or 68°F, approx. 1.1V should read.)
If RTD wires are broken, the output goes over 100% (below
0% with downscale protection) due to burnout protection
function. Check leadwires in such a case.
4 ) Output: Check that the load resistance meets the de-
scribed specifications.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration, unless you need to match the signal to a receiving
instrument or conduct regular calibration.
Zero and span are adjusted with using the Programming
Unit (model: PU-2x).
Refer to the Operation Manual for Model PU-2x for expla-
nations how to use the programmer.
■WARNING ON USE OF THE PROGRAMMING UNIT
•Be sure to disconnect the Programming Unit before you
turn on/off power supply to the unit.
•The output signal is held when the Programming Unit is
connected. You need to disconnect when confirming cur-
rent output values.
■HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the power supply on and warm up for
more than 10 minutes.
• Fine Output Calibration
Using the Programming Unit (ITEM 19, 20)
ITEM 19 is for Zero, and ITEM 20 is for Span.
1 ) Turn the unit into Program mode (ITEM 01).
2 ) Apply simulated 0% input. Increase/decrease values
(default: 0%) at ITEM 19 until the output signal is cali-
brated to actual 0%.
3 ) Apply simulated 100% input. Increase/decrease value
(default: 100%) at ITEM 20 until the output signal is
calibrated to actual 100%.
4 ) Apply simulated 0% input again and check 0% output.
5 ) When 0% value is changed, repeat the above procedure
2) - 4).
The 0% value may be shifted when the output span is
greater than the input span (gain > 1).
• Using Linearization Table
Please have the PU-2x Operation Manual ready at hand.
Max. 16 calibration points defined by sets of input and out-
put values can be programmed. Use only necessary number
of points, arranged in order from the smallest input value.
Enable use of the linearization table (ITEM 10: Pm-2:
curved) in order to activate the settings.
X (nn) : Input Signal in %
Y (nn) : Output Signal in %
X or Y : -15.00 to +115.00%
-15% 0
X01
X02 X03 X04 X05 +115%
Y01
Y02
Y03
Y04
+100% Y05
INPUT
OUTPUT
[GROUP 01]
ITEM MDFY. DATA EXAMPLE
60 P X (01) : XXX.XX
61 P Y (01) : XXX.XX
62 P X (02) : XXX.XX
63 P Y (02) : XXX.XX
64 P X (03) : XXX.XX
65 P Y (03) : XXX.XX
66 P X (04) : XXX.XX
67 P Y (04) : XXX.XX
68 P X (05) : XXX.XX
69 P Y (05) : XXX.XX
70 P X (06) : XXX.XX
71 P Y (06) : XXX.XX
72 P X (07) : XXX.XX
73 P Y (07) : XXX.XX
74 P X (08) : XXX.XX
75 P Y (08) : XXX.XX
76 P X (09) : XXX.XX
77 P Y (09) : XXX.XX
78 P X (10) : XXX.XX
79 P Y (10) : XXX.XX
80 P X (11) : XXX.XX
81 P Y (11) : XXX.XX
82 P X (12) : XXX.XX
83 P Y (12) : XXX.XX
84 P X (13) : XXX.XX
85 P Y (13) : XXX.XX
86 P X (14) : XXX.XX
87 P Y (14) : XXX.XX
88 P X (15) : XXX.XX
89 P Y (15) : XXX.XX
90 P X (16) : XXX.XX
91 P Y (16) : XXX.XX
Modication Code
S: Modifiable at any time.
P: Modifiable only when the MAINTENANCE SWITCH is in
the “PRG” mode.