CATU MS-917-L Low Voltage Detector Instruction Manual

SICAME GROUP
DETEX MS-917 / MS-918
MS-917-L , MS-917-Pg , MS-918-SP2 , MS-917-BS
MS-918-L, MS-918-Pg, MS-917/2-ERDf

MS-917-L Low Voltage Detector

OPTIONAL EQUIPMENT
Tool bag: M-87285
Panel hanger: M-952325

DETEX MS-917 / MS-918

1. Red safety test probe
2. Black safety test probe
3. Multifunction diode: 12V, + Pole
4. Multifunction diode: 12V, – Pole
5. Presence of dangerous voltage diode (>50V)
6. Measurement button
7. Lever for freeing terminals
8. Diodes (see field of use)
9. Phase LED
10. Retractable sheath
11. Phase rotation LED
12. Lighting unit

DDT / VAT VOLTAgE DETECTOR

Please read these instructions carefully and comply with the precautions for use.
This voltage detector is designed for use by qualified staff in compliance with the national safety rules.
The voltages indicated on this detector are nominal voltages. Ensure that the detector will be used on facilities that have suitable nominal voltages and the appropriate climatic category.

DESCRIPTION

Your MS-917/MS-918 is a voltage detector (DDT). It is used for carrying out no voltage check (VAT) operations. It was designed according to EN 612433 / IEC 61243-3 standards in response to the requirements of the collection of general electrical safety instructions NF C 18 510 and to the European standard EN 50110-1.
Moreover, it is completed by the following functions:
– check of voltage levels
– continuity check of an electrical circuit (power off)
– Phase rotation monitoring (« 2 wire » method)
– identification of the phase (by the uni polar method)
– check of +/- polarities
– phase sequence control (depending on model)
It is equipped with IP2X safety test probes and an integrated correct operation test.

SAFETY INSTRUCTIONS

According to the internal impedance of the voltage detector, there is different capacity to show the presence or absence of operating voltage if there is a induced voltage present. A voltage detector with a relatively low internal impedance, compared to the reference value of 100 kΩ, does not show all the induced voltages whose original voltage is greater at the ELV level.
When the voltage detector is in contact with the parts to test, it can temporarily evacuate the induced voltage at a lower level than the ELV, then return to the original value when the voltage detector is removed. If the ‘voltage present’ message is not displayed, it is strongly recommended to install earthing equipment before the operation.A voltage detector with a relatively high internal impedance, compared with the reference value of 100 kΩ, cannot clearly specify the lack of operating voltage if a disruptive voltage is present. If the ‘voltage present’ message is displayed on a part meant to be disconnected from the installation, it is strongly recommended to use other methods to confirm (use of a suitable voltage detector, a visual check of the electric circuit disconnection point, for example) that there is no operating voltage on the part to test, and to conclude that the voltage shown by the voltage detector is a disruptive voltage.

CHECKING CORRECT OPERATION (auto test)
A “no voltage test“ must always be preceded and followed by a correct operation test.
Never use the device if this operation is inconclusive. Short-circuit the safety test probes and press 6.
Correct functioning of the voltage detector is indicated when:
⇒ the illumination at high speed (1s) voltage led indicator (diode 5 remain off).
⇒ the triggering of a sound signal at high repetition rate.
Make sure, especially in high noise  level areas, the buzzer signal is audible.
Note 1 : A correct operation check indicates whether the battery level is good: if the correct operation check fails, replace the battery.
If still faulty, contact our maintenance department.
Note 2 : The “correct operation check” function ensures the integrity of the cord, battery, and electronic circuit.

CHECKING Of THE ABSENCE Of VOLTAGE

Connect the safety test probes 1 and 2 in contact with the source to be checked.
No signal must be emitted.
A.C. OR D.C. VOLTAgE TEST
The voltage detector indicates the voltage levels.
Place the safety test probes 1 and 2 in contact with the source to be checked. The voltage level is indicated by the illumination of diodes, and doubled up by the emission of an intermittent acoustic signal up to 230V and continuous beyond.
The presence of dangerous voltage diode 5 comes on when the safety voltage (50V) is exceeded.
Note 1 : The various indications (VLV excess diode, in particular) are intended to give voltage levels. They must not be used to make measurements.
Note 2 : The voltages indicated on the detector correspond to nominal voltages. The detector must therefore be used on facilities with specified voltages.
Do not leave switched on for more than 30 seconds!
POLARITY TEST
The presence of alternating (A.C.) voltage is confirmed when the + 12V (3) and – 12V (4) diodes come on simultaneously.
The presence of direct (D.C.) voltage is confirmed when one of the two diodes comes on:
– The – 12V (3) diode, if the red safety test probe is connected to the negative pole of the source;
– The + 12V (4) diode, if the red safety test probe is connected to the positive pole of the source.
PHASE IDENTIfICATION
Phases can be very easily spotted with your MS-917/MS-918. The operation is carried out with the red tip probe, holding it in your hand. The cords should be left free and not held in hands. When the tip of the probe comes into contact with a phase the “Phase”
LED lights up.
**CONTINUITY TEST***
This operation is to be carried out when circuit is disconnected. Place the two test probes at the terminals of the item to be checked, then press the black button.
A continuity resistance lower than R is indicated when:
⇒ The illumination at high speed (1s) of diodes at voltages. The multifunction diode and the diode for presence of dangerous voltage remain off);
⇒ the triggering of a sound signal at high repetition rate.
Note: The function remains enabled for about 10 seconds after releasing the button that is pressed to free up one hand. (5 minutes for MS-918-SP2)
Lighting unit**
The “lamp light” is activated by a long press (approx. 2s) on the test button 6 without making contact with the two probes. Extinction is automatic after a delay of about 30 s or by re-pressing the test button6 .

CHANGING THE BATTERY

This operation is to be carried out when the instrument is disconnected from all sources of voltage.
The battery must be replaced when the correct operation check fails.
Remove the three screws located on the lower casing (POZIDRIV blade, PZ1 exclusively).
Remove the lower casing. Insert two AAA (LR03; 1,5V) batteries and ensure that the polarity is correct.
Replace the lower casing and retighten the 3 screws.
Be careful to screw with a suitable tightening torque (about 0.75 Nm).

MAINTENANCE / STORAGE Of YOUR

MS-918
It generally requires no specific maintenance; however, keep it fully clean by using a cloth moistened with alcohol or a soft detergent. Your DDT/VAT must be stored in a clean and dry place.
Unauthorised staff must not disassemble the detector.
PERIODICAL MAINTENANCE
The owner is responsible for establishing the maintenance plan. However, no voltage detector should be used without being checked within a maximum period of 6 years.

TECHNICAL FEATURES

| Nominal voltages (V)| R (Ω)
---|---|---
MS-917| 12-24-50-127-230-400-690 (750DC)| 200
MS-917-L| 12-24-50-127-230-400-690 (750DC)| 200
MS-917/2-ERDF| 12-24-50-127-230-400-690 (750DC)| 100
MS-917-BS| 50-230-440 (VAC)| –
MS-918| 12-24-50-127-230-400-600-900| 80
MS-918-L| 12-24-50-127-230-400-600-900| 80
MS-918-SP2| 12-24-50-127-230-400-600-900| 80
MS-917-PG| 12-24-50-127-230-400-600-900| 80
MS-918-PG| 12-24-50-127-230-400-600-900 (1000DC)| 80

Field of use:

• Relative humidity: 20% à 95%

• Sound and light device.

• Frequency: DC, 50/60/400 Hz +/- 3% (frequency max 60Hz for MS-917 and MS-917-L)

• Operating temperature: -15°C /+45°C

• Internal ELV impedance: see marking on your voltage detector

• Response Time: < 1s

• Protection level : IP65 / IK 06

• Double insulation Class II

• IEC 61243-3 (2014) EN 61243-3 (2015)

• IEC 61326-1 (EMC)

• CAT IV-600V – CAT III-1000V

• Store in dry, clean conditions.
  For outside use.

• Powered by two AAA batteries (LR03 – 1.5 V).

• Operating cycle:
  – On 30 s (maximum time during which the device can be conneted to an energized part)
  – Off 240 s (minimum idle period during which the detector must not be connected to an energized part).

• Weight 210 g.

MS-918 – MS-918-SP2 – MS-917/2-ERDF – MS-918-PG – MS-918-L

PHASE ROTATION MONITORINg

Your MS-918 enables you to determine the  rotation direction of phases. This operationis carried out in two sequences utilising the two tips of the probe. In advance you should ensure the existence of voltage and that it is of the same strength on each of the three
phases (minimum 127 Volts). Throughout the entire operation the tip of the red probe must remain in contact on phase 1.

Sequence 1:
– place the tip of the black probe in contact with phase 2.
– the appliance is then ready for the following sequence when the rotation LEDs of the red and green phase flash on and off simultaneously.
Sequence 2 : Next move the tip of the black probe towards phase 3.
– if the green LED lights up the rotation direction is0 clockwise.
– if the red LED lights up the rotation direction is anti-clockwise.
– if the phase rotation LEDs are not illuminated your MS-918 is telling you that you are not in the presence of a balanced tri-phase network. Repeat the 2 sequences in order to confirm the result.

N.B : You will have 5 seconds to carry out this 2nd sequence.
N.B : In a case of an anti-clockwise rotation direction we recommend that you repeat a monitoring check-up of the phases switching  hases 2 and 3 around in order to obtain a clockwise rotation direction.
Except version MS-917-L and MS-918-L
Except series MS-917
Except version MS-917-BS

Thorne & Derrick
-1-44 (0) 191 410 4292
www.powerandcables.com
CATU S.A. 10 A 20 AVENUE JEAN-JAURÈS
92222 BAGNEUX CEDEX FRANCE
TÉLÉPHONE: 0142314646
CATUELEC.COM

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