EXAMPLE ISOLATOR: MODEL MTL5541
This isolator has an internal resistance of 220Ω. Two wiring configurations are possible,
depending on whether or not this internal resistance is used.
Configuration A:
400 Ω ≤ RL ≤ 800 Ω
(not using the internal resistance)
11
12
R L
LCT
-
+
-
+
4/20 mA
MTL5541
Configuration B:
180 Ω ≤ RL ≤ 580 Ω
(using the internal resistance)
11
12
R L
LCT
-
+
MTL5541
10
220
Ω
-
+
4/20 mA
+
SOFTWARE
The latest version of the software is available for download from the Calex website at the
following URL:
www.calex.co.uk/software
Install the software before connecting the LCT to a Windows PC. This will ensure the driver is
properly installed.
USING THE SOFTWARE
See
Configurable Parameters
and the
Configuration Software
diagram opposite.
If the Settings icon is greyed out, the software is locked. Unlock the software to allow access to
the Settings menu. The default password is 1234.
MAINTENANCE AND TROUBLESHOOTING
Our technical support engineers are available for application assistance, calibration, repair,
and solutions to specific problems. Contact our Service Department before returning any
equipment. In many cases, problems can be solved over the telephone. Contact us for further
advice.
GUARANTEE
Calex guarantees each instrument it manufactures to be free from defect in material and
workmanship under normal use and service for the period of two years from the date of
purchase. This guarantee extends only to the original buyer according to the Calex Terms and
Conditions of Sale.
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