APPOINTMENT

The digital display of damages selector of the Universal-911 M2 is intended for:

• detection of a lining route of power cables, cables of communication, a heating cable for heat-insulated floors;
• detection of a lining route of current-carrying pipelines (gas pipelines, oil pipelines, wires of ammonia, water pipes, pipelines of sewer and thermal networks);
• detection of a lining route of the pipelines executed from nonmetal (at presence in them a current-carrying liquid);
• detection of a lining route and depth of arrangement of contours and grounding tyres;
• depth definitions of arrangement of cables and pipelines;
• detection of places of damages of power cables, communication cables, heating a cable (breakage, short circuit, places of fall of isolation) by an induction, method of potentials and by the active electric aerial;
• detection of a lining route and places of damage of the latent conducting;
• detection of places of defects of isolation in underground or underwater pipelines;
• detection of places of unapproved inserts on pipelines;
• detection of places of leak in pipelines an acoustic method on intensity of noise in a damage place;

The design of the selector of damages provides:

• operation at the telecommunications agencies and electric networks;
• operation at the enterprises where pipelines are used;
• operation at the enterprises specializing on inspection and repair of cables and pipelines;
• operation at the enterprises specializing on installation and operation of a heating cable for heat-insulated floors;
• work of the receiver together with the generator by an induction, a method of potentials way;
• work of the receiver together with the generator by the active electric aerial;
• work of the receiver without the generator in a wide strip of frequencies;
• work of the selector in a mode of the acoustic receiver;
• indication of the received information on the pointer indicator;
• indication of an accepted signal on the liquid crystal indicator in a digital form in all dynamic range, from minimum to a maximum level of intensity of an electromagnetic field, at various modes of search or definition of places of damages;
• the control of an accepted signal on headphones;
• separate adjustments of sensitivity of the pointer indicator and loudness of phones;
• simultaneously installation on a bar of the receiver of the magnetic aerial and any of gauges for specification of a line and search of damages of cables or pipelines (only for a dural bar);
• the control of a condition of accumulators of the receiver and possibility of their additional charge;
• high sensitivity and noise immunity of the receiver at optimum capacity of the generator for confident work in any difficult conditions of electromagnetic hindrances;
• high sensitivity to weak acoustic signals;
• digital indication of work of a geomicrophone at search of places of impulses of pipelines with liquids, air or gas;
• regulator with a five strips of frequencies with frequencies of adjustment 60, 180, 360, 820 and 1800 Hz for a geomicrophone for tuning out from street noise;
• stability of electric parameters at various differences of temperatures;
• a food of the generator from a network 220В 50 Hz or the external accumulator 12 or 24WATT;
• the control of frequency of the generator on the built in frequency meter;
• additional charge of accumulators 12 or 24WATT from charging devices;
• small weight, durability and reliability of constructive decisions, small overall dimensions;
• 15 years resource at daily work;
• a guarantee of non-failure operation 24 months.

SERVICE CONDITIONS

The selector of damages ensures functioning at:

• an ambient temperature from - 30 degrees C to +50 degrees C;
• relative humidity of air to 80 %;
• pressure of a power line 220±30/50B with frequency 50Hz (for a power unit at work from a network 220WATT 50Hz);
• pressure of a power of the receiver 12±2/0,5 WATT a direct current;
• pressure of a power of the generator of voice-frequency impulses 12±3/1WATT (a variant 1) or 24±2/12 (a variant 2) a direct current. The receiver and the generator of voice-frequency impulses are protected from wrong connection of sources of a direct current.

The equipment is executed in carrying execution.

Completeness of delivery

Depending on carried out problems defined by the user, the selector of damages is completed:

• 30 or 100 WATT generator;
• a bar of the receiver and a probe-bar, executed from duralumin in case of application of a method of the potentials or the facilitated bar executed from plastic for those who does not use a method of the potentials, (is possible delivery of two versions of bars);
• the contact geomicrophone established in the basis of a dural bar or a portable geomicrophone, providing separate execution.

Frequency characteristics of geomicrophones of two kinds:

• for liquids and electrical networks of 60-1800 Hz, for gas of 3000-30000 Hz.

For the enterprises of a severage system and heat energy for search of places of impulses of pipelines the geomicrophone is completed with a five-strip regulator of frequencies with frequencies of adjustment 60, 180, 360, 820 and 1800 Hz for tuning out from street noise.

Technical data

Generator G-980M (variant 1) and G-980M1 (variant 2)
Limit of reorganisation of frequency of voice-frequency impulses of generators, Hz	900-1300
The fixed frequency, Hz	1177
Duration of impulses of voice-frequency frequency of generators, C	0,3; 0,6 continious
Target resistance of generators, Ohm	0,5; 1; 2,5; 5; 10; 25; 50; 100; 500; 1000
Target capacity of generators, WATT not less not less (a variant 1) (a variant 2)	30 100
Pressure of a power of the generator (a variant 1) and a power unit 220/24В (a variant 2), WATT	220±30/50
Frequency of a power line, Hz	50
Pressure of a food of generators from an external source of a direct current, WATT (a variant 1) (a variant 2)	12 24
Consumed current of generators: - on a feed circuit 12WATT a direct current (for a variant 1), no more, A	2,5
- on a feed circuit 24WATT a direct current (a variant 2), no more, A	5,5

The receiver
The basic working frequency of the receiver of the selector, Hz	1177
Sensitivity of the receiver on frequency of 1177 Hz, (for the magnetic aerial) mkWATT	0,2
Sensitivity of the receiver on frequency of 1177 Hz, (for the electrical aerial) mkWATT	0,05
Sensitivity of the receiver on frequency of 50 Hz, mkWATT	10
Sensitivity of the receiver on frequency of 100 Hz, mkWATT	30
Pass-band of the receiver the STRIP NARROW, Hz: - on level 0.7 - on level 0.1	5 20
Range of accepted frequencies in a STRIP WIDE mode, Hz	20Hz - 30 kHz;
Easing of signals of frequencies of 50 and 100 Hz in a narrow strip of reception, not less Db	80
Definition of places of infringement of resistance of veins of cables without the screen with PVC-COVER concerning a ground, Ohm	0,1-4 000 000
Definition of damages places of isolation of pipelines concerning a ground, Ohm	0,1-4 000 000
Accuracy of definition of a line of a route, (depends on the depth of arrangement and presence of nearby in parallel located communications) sm.	±2-5
Accuracy of the depth arrangement definition, (depends on the depth of the arrangement and presence of nearby in parallel located communications) sm.	±2-10
Detection of a line of underground communications on depths, (under condition of the coordination of an exit of the generator with resistance of loading) m	0,01-20
Pressure of the receiver power, B (10 accumulators 1,2B 700 мА type GP).	12±2/0,5
Pressure of the scheme digital indication power, (the accumulator of type the CRONA) WATT	8,4±2
Detection of places of acoustic leak of pipelines on depth, (depth of 5-6 m for liquids at pressure not less than 6-8 kg/sm) m	0-6
Detection of places of acoustic leak of gas pipelines on depth, (depends on the size of a fistula and pressure in a gas pipeline, not less than 3 – 5 kg/sm) m	0-6
Receiver loading - headphones the general resistance, (in parallel connected 2 caps on 32 Ohm) Ohm	16
The current consumed by the receiver of the selector, мА: - in a mode the STRIP NARROW - in a mode the STRIP WIDE – in selector of the leakage mode	20 15 20