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Odorant measuring - simple and economical
Natural gas is - by nature - odorless and for safety reasons it must be provided with odorous substances (odorants tetrahydrothiophene or tertiary butyl-mercaptan).
The odorant content of natural gases has to be tested regularly in accordance with DVGW regulation G 280/281.
The EX-TEC® OD 4 is the ideal measuring device for odorant measuring by the gas supplier.
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Features:
- modular instrument concept, basic device without pump (diffusion device) or with built-in pump
- low release times with pump devices
- electro-chemical sensors
- all commercial Mignon accumulators or batteries may be used for power supply
- micro-processor controlled
- large, illuminated LCD
- self-test when switched-on
- simple handling by three keys
- internal data storage (PC evaluation possible)
- visual and optical alarms
- adjustable threshold
- temperature compensated sensors
- user menu
- function menu for individual instrument configuration (PIN-Code-protected)
- adjustable test gas concentrations
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Electro-chemical sensors:
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Measuring range |
Response time t 90 |
Durability expected
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| THT (tetrahydrothiophene) |
0 ... 100 mg/m3 |
? 210 s |
12 – 18 months
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| TBM (tertiary butyl-mercaptan) |
0 ... 100 mg/m3 |
? 270 s |
9 – 12 months
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Technichal data
| operating time: |
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typ. 50 h diffusion operation; typ. 20 h pump operation |
| power supply: |
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NiMH accu, rechargeable or 3 Mignon Alkaline batteries |
| EX-protection (CENELEC) |
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EC-type-examination certificate according to ATEX 100a,
guideline 94/9/EG |
| - certificate No.: |
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TÜV 01 ATEX 1657 |
| - identification: |
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II 2 G EEx e ib IIB T4 |
| pump capacity: |
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| - low pressure: |
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> 150 mbar |
| - volumentric flow: |
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typ. 5 ... 15 l/h |
| protection type: |
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IP 54 |
| operating temperature: |
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-10 °C ... +40 °C |
| storage temperature: |
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-10 °C ... +40 °C |
| humidity range: |
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15 ... 95 % r. h., non-condensing |
| dimensions (W x H x D): |
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60 x 144 x 35 mm |
| weight: |
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approx. 300 g |
| Accessories |
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- GasIS (PC evaluation software) for documentation of measurements
- charging technique for 12 V/24 V DC or
100 – 240 V AC
- carrying bag
- connection hoses for various pressure ranges
- test set and test gases
- case
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