CATU CATEX DT-110 Manual Del Usuario página 5

If the differential device does not trip, it might indicate:
1. a defective differential device
2. a ground resistance that is too high
3. a sensitivity rating error
4. neutral/ground inversion
5. ground not connected
6. the network scheme is a "IT" configuration.
The CATEX TM DT-110 electrical installation tester can be used on 2P+G
10/16 A power outlets on 230 V single-phase electrical circuits between
phase and neutral. The neutral accommodated by CATEX
involves "TT" and "TN" schemes. As far as the "IT" scheme is concer-
ned, conform with part 6 of the appendix to standard NFC 15-100
(1991).
TECHNICAL SPECIFICATIONS AND ACCESSORIES
Your CATEX TM DT-110 electrical installation tester is designed to meet the
requirements of standard NF EN 61010-1.
Load voltage :
Frequency :
Operating temperature range :
Storage temperature range :
Installation category II :
Use only under dry conditions (RH ≤ 50%, Alt. ≤ 2000 m). Use category
II installations only (distribution network).
FUSES :
CATEX TM DT-110 is protected by two 250 mA delayed fuses.
Replacement is carried out in our workshops.
TM DT-110
230 V ± 10%
50/60 Hz ± 10%
-15°C/+45°C
-25°C/+70°C
Protection degree IP 40 IK03
Pollution degree 2
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SERVICING :
Your CATEX TM DT-110 electrical installation tester does not call for any
specific servicing; keep it perfectly clean and use only a dry cloth for
cleaning it.
PREVENTION :
For safety's sake, this equipment can only be disassembled by CATU
technical personnel.
SPECIAL SITUATIONS
CASE No. 1 : Caution: if the conductors of a panel or power outlet are
inadvertently connected to the same single phase, there will be no volta-
ge between the conductors but the voltage will be present between
these two conductors and the floor. Separate the installation from any
source of voltage and check the cabling.
Before carrying out any action, apply the safety rules prescribed by UTE
C 18-510.
CASE No. 2 : Caution: the presence of the phase on the right and on
the left in the power outlet compartments means that you are in one of
the following situations:
1. The circuit is at 400 volts and cabling between phases from a three-
phase 400 volt installation.
2. The circuit is at 230 volts and cabling between phases from a three-
phase 230 volt installation.
3. The circuit is at 230 volts and cabling between phases from a two-
phase 230 volt installation
4. Ground is not connected.
Separate your installation from any source of voltage, check the nature
of the network implemented and the cabling of the circuit.
Before action, apply the safety regulations prescribed by UTE C 18-510.
CASE No. 3 : If the installation you are testing is cabled at 230 volts bet-
ween phases (see case No. 2, points 2, 3 and 4), the differential test will
not be operational.
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