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1750 mm (2300 mm with the loading element and thermometer part);
diameter is 32 mm; the mass is not bigger than 10 kg (without

Table 11.1 – Main technical characteristics of helix downhole

pressure gage DPGNS-2 (МГН-2)

The type of downhole pressure gage

Index
DPGNS-2-100 DPGNS-2160 DPGNS-2-250 DPGNS-2-400 DPGNS-2-600 DPGNS-2-800 DPGNS-2-1000

The limits of measuring
0 – 0 – 0 – 0 – 0 – 0 – 0 –
the pressure, atmospheres 100 160 250 400 600 800 1000

The range of working From + 20 to From + 20 to + 160
о
temperatures, С + 100
The basic reduced error, % ± 0.25 ± 0.4

The threshold of sensi-
0.1 0.2 0.3 0.4 0.6 1.5 2
tiveness, atmospheres

The recording length
50 ± 5 45 ± 5
on pressure, mm

The recording length 120 ± 5
on time, mm

The recording scale (the
scale of record), mm / 0.125 0.25 0.5 1
minute

The range of recording * 16 8 4 2
duration, hours – –

The diagram The metallic foil with
The blank material
paper the coating
Sizes, mm:
the length** 1500 1550 1750 1800

the diameter 32 36

The mass, kg Not bigger than 10

* 16 hours’ recording time corresponds to the recording scale 0.125;

8 hours’ recording time corresponds to the recording scale 0.25 etc under

condition of using the clockwork drive of 27 CD (27 ЧП) type.

** The device length without the thermometer part.

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