PTA - Power Tech Associates

SF₆ - MEASURING DEVICES :

3-026-R002 SF₆ Warning device

The DILO SF₆ warning device is used for the permanent control of ambient air for inadmissibly high SF₆ concentrations and for the leak control of SF₆ plants in closed rooms.

Response time:

approx. 1 min. with 2 m (6.6 ft) connecting hose

Contact output:

2 potential free alternating contacts 2.5 A 250 V AC

Operating temperature:

+ 0 to + 40°C

Alarm set:

to 2.0 vol.-% SF₆/air

Measuring accuracy:

± 0.5 vol.-% SF₆-share

3-026-R100 SF₆-Network Monitor

Device for monitoring the air of indoor SF₆ plants. Indication of the measured value via LEDs on the front of the device.

Possibility to connect the device to the SF₆ -Network Controller via bus system.

Measuring range:

500 up to 2000 ppm_v

Indication:

via 4 LEDs on the front of the device for 500, 1000, 1500 or 2000 ppm

Operating voltage:

100 V - 240 V AC, 50/60 Hz, 18 VA

Humidity (during operatrion):

10 to 90 % non condensing

System of protection:

IP 52

Operating temperature:

-5 to 45°C

3-026-R110 SF₆-Network Controller

Connection up to 12 SF₆-Network monitors via an electrical bus system.

Indication:

touch screen 14.8 cm (5.8")_v

Max. length of the bus system:

1000 m

3-027-R002 SF₆ Volume percentage measuring device

Volume percentage measuring device with digital display, measuring cell with electronic part, 2 meter long connecting hose with coupling DN8 and DN20

Measuring media:

SF₆/N₂ of SF₆/air-gas mixtures

Measuring range:

0 - 100 volume-% SF₆

Measuring accuracy:

± 1 vol.-% for SF₆/N₂- or SF₆/air-gas mixture

Operating pressure:

Input pressure without pressure regulation pa = 1.7 to 10 bar

Operating temperature:

Temperature compensation of
- 20°C to + 40°C

Interface:

RS 232

3-035-R20 SF₆ Analyser 973

The SF₆-Analyser 973 was designed for measurement of humidity and purity in SF_{6_{-gas insulated switchgear.
Humidity measurement is displayed in ppmv, ppmw, dew/frost point at either system pressure or standard pressure.
Purity measurement is displayed directly in SF₆ volume percent.}}

Measuring range:

frost/dew point -50 °C ... +20 °C

Measuring accuracy:

frost/dew point ≤ ± 0.4 °C

ppm_v/ppm_w ± 5 % of measured value

SF₆ volume percent ± 0.5 %

pressure ± 30 mbar

3-032-R003 Measuring device for different decomposition products and gas residues

With this measuring device the following decomposition products can be measured:
- Sulphur dioxide SO₂
- Hydrogen fluoride HF

Oil mists can additionally be detected. The concentrations of decomposition products and oil mist are indicated in ppm. The following concentrations can be measured:

Sulphur dioxide SO₂:

1 to 500 ppm_v

Hydrogen fluoride HF:

1.5 to 15 ppm_v

Oil mist:

1 to 10 mg/m³ (0.16 to 1.6 ppm_m)

3-033-R002 Gas leak detector

Microprocessor control, with advanced digital signal processing Tricolor visual LED display and audible signal for progressive leak-size indication

Power supply:

3 V = two 1.5 V "C"-cell alkaline batteries

Guaranteed sensitivity:

14 g SF / year (0.5 oz / year)

Operating temperature:

0°C to + 52°C

Battery life:

approx. 30 hours

Method of operation:

continuous operation withour limitation

Response time:

immediately

Reset time:

1 second

Warm-up time:

approx. 2 seconds

Fixed sensor length:

355 mm

3-032-R... Portable SO2 measuring device with LED display

The 3-032-R... measuring device has been designed to show a high resistance against contamination and SF₆ decomposition products. For this reason the device does not only measure with more precision and reliability but even minimizes the usually long term drifting. Pressure and temperature influences on the measuring result can be excluded. The values are displayed in ppm_v.

Available measuring ranges:

R101 = 0 - 20 ppm_v

R102 = 0 - 100 ppm_v

R103 = 0 - 500 ppm_v

3-037-R001 Portable moisture measuring device

Moisture measuring device wiht digital display, mains-operated or by NiMH batteries (battery charger is integrated)

Indicating range:

- 80 to + 20°C

Measuring range:

- 50 to + 10°C dew point

Measuring accuracy:

± 4°C

Max. input pressure:

pe 10 bar

Operating temperature:

0 - 40°C

Operating voltage:

100 - 240 V / 50/60 HZ

3-038-R... SF₆ Multi-Analyser without recirculation system

3-038-R... SF₆ Multi-Analyser with recirculation system

The SF6 Multi-Analyser is an important component in the reuse of SF₆-gas to determine the gas quality used in medium and high voltage switchgear. The device with recirculation system can additionally be used for storing and reclaiming SF₆ measuring gas.

The SF₆ Multi-Analyser allows to determine the three most important parameters for reuse of SF₆-gas with only one measurement:

- SF₆ concentration (%)
- Moisture concentration
- SO2 concentration (ppm_v)
- Option: HF concentration (ppm_v)

B151R90 Discharge gas collection unit and recirculation

Installed in a transport case
For storage and reclaiming of SF₆ measuring gas

The discharge gas collection unit can be connected to a measuring device by the hoses included in the scope of supply. The measuring gas is collected and stored in an internal vessel by means of a compressor. After having carried out measurements the stored measuring gas can be pumped back from the internal storage vessel in the gas compartment connected (max. p_e 9 bar) The stored measuring gas can also be pumped manually if required (max p_e 9 bar)

SF₆-gas is not released into the atmosphere!

Discharge gas collection unit and recirculation

B151R20 Discharge gas collection unit

For reclaiming and storing of SF₆ measuring gas

1 m³/h compressor, pe 50 bar, particle filer, gauges, connecting hose for collecting the used gas from the measuring devices

connecting couplings for:
- gas compartment
- measuring device input
- measuring device output
- external gas bottle

internal storage vessel

all couplings are self-closing, electric control with automatic process control two (230 V) sockets for measuring devices

Operating voltage: 100-127 V, 220-240 V AC, 50/60 Hz

Z340R10 Adapter for measuring devices

In a portable plastic case

- Hose connection DN8
- Adapter for measuring gas connection
- Transition piece DN20 for bottle pressure reducer
- Pressure reducer for SF6 reference gas bottle
- Manifold with self-closing couplings
- Manifold for measuring gas output
- 4 m long extension hose

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