M5SN
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the con-
nection diagram on the front of the unit.
■
EXTERNAL DIMENSIONS unit: mm (inch)
■
CONNECTION DIAGRAM
94 (3.70)
3 (.12)
25 (.98)
41 (1.61)
[3.3 (.13)]
• When mounting, no extra space is needed between units.
35.4 (1.39)
DIN RAIL
35mm wide
8–M3.5 SCREW
7.3 (.29)
1
2
3
4
5
6
7
8
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Input: Check current with an ammeter. Be sure that
the connected transmitter allows the M5SN’s load value
[230Ω + output load resistance].
3) Output: Check that output load is within the permis-
sible limit of 50 to 350Ω.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
For matching the signal to a receiving instrument or in case
of regular calibration, adjust the output as explained in the
following.
■
HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the input signal on and warm up for
more than 10 minutes.
1) ZERO: Apply 0% input and adjust output to 0%.
2) SPAN: Apply 100% input and adjust output to 100%.
3) Check ZERO adjustment again with 0% input.
4) When ZERO value is changed, repeat the above proce-
dure 1) – 3).
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the “ADJUST-
MENT PROCEDURE” explained earlier.
+
–
INPUT
3
+
–
5
6
4
OUTPUT
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
SENTRONIC
AG
