General information | |
Smallest measuring ranges (depending on application) | - Thermal conductivity: 0 ... 20 ppm
- Flame ionization: 0 ... 1 ppm
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Temperature range in oven | Application-specific, temperature class-dependent 5 ... 330 °C depending on oven version and temperature class |
Temperature control | ± 0.02 °C |
EMI/RFI design | - CE-compatible; certified according to 2004/108/EC (EMC directive)
- CE-compatible; certified according to 2006/95/EC (low-voltage directive)
- Tested according to EN 61010‑1 / IEC 1010‑1
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Calibration | Comparative measurement with external standard |
| Manual or automatic |
| Automatic baseline correction |
| Standard sample cylinder (single or multipoint calibration possible) |
Dimensions | |
| 105.4 cm |
| 75.2 cm |
| 41.2 cm |
Weight | 77 kg (application-dependent) |
Degree of protection | IP54, Category 2 |
Danger class | Standard configurations: - Certified according to ATEX with air or nitrogen purging for Zones 1 and 2 (II2G Ex ... IIB + H2 ... Gb)
- Suitable for use in non-hazardous areas and with non-dangerous conditions
- Certified according to CSA C/US for use in Class 1, Div. 1, Groups B, C, D with air or nitrogen purging
- Certified according to CSA C/US for use in Class 1, Div. 2, Groups B, C, D.
Important note! Use in non-hazardous areas requires purging of the electronics area with air or nitrogen. PDD is not certified for hazardous areas. |
Configuration | |
Oven options | - Single isothermal oven or divided oven with two independent isothermal zones
- Single oven or two independent airless ovens. The dual version has two separate oven areas with separate doors which operate completely independently.
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Detector modules for | thermal conductivity, flame ionization, flame photometry, helium ionization, photo-ionization and electron capture |
Number of detector modules | - 1, 2 or 3 in any combination of detector module types for airbath ovens
- 1 or 2 in any combination of detector module types for airless ovens, up to 3 in special configurations
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Sampling and column valves | Diaphragm valves, diaphragm piston valves, sliding vane rotary valves, slider valves, or liquid injection valve |
Valveless option | Live switching |
Columns | Packed, micropacked or capillary columns |
Regulation of gas supply | Up to 8 electronic pressure regulator channels and up to 6 mechanical pressure regulators |
Electrical characteristics | |
Auxiliary power | - Single-phase AC, 100 ... 130 V or 195 ... 260 V (selectable), 47 … 63 Hz
- Single oven: max. 14 A
- Dual oven: 2 circuits, max. 14 A each
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Gas inlet conditions | |
Sample flow | 5 ... 100 ml/min (depending on application) |
Sample filter size | 0.1 ... 5 µm for gaseous samples depending on valve type max. 0.3 µm for liquid samples |
Minimum sample pressure | 35 kPa, standard |
Maximum sample pressure | 200 kPa standard, higher pressure as option |
Maximum sample temperature | 121 °C standard; higher temperature as option |
Materials wetted by sample | Stainless steel and Teflon; other materials as option |
Liquid injection (valve) | |
Vaporization temperature | 60 ... 350 °C depending on application and temperature class |
Injection volume | 0.1 ... 9.5 μl |
Sample temperature | -20 ... +150 °C |
Material of wetted parts | Stainless steel, mat. no. 1.4571, Hastelloy, Monel or special materials |
Control pressure | 400 ... 600 kPa |
Sample pressure | Max. 6 000 kPa, recommended 50 ... 100 kPa |
Connections for pipe | 3.14 mm (1/8") outer diameter |
Measuring response | |
Sensitivity (depending on application) | ± 0.5% of span |
Linearity (depending on application) | ± 2% of span |
Effects of vibrations | Negligible |
Repeatability in % of full span | 2 ... 100 %: ± 0.5 %; 0.05 ... 2 %: ± 1 %; 50 ... 500 ppm: ± 2 %; 5 ... 50 ppm: ± 3 %; 0.5 ... 5 ppm: ± 5 % |
Detection limits | See "Detectors" |
Influencing variables | |
Effects of ambient temperature | None with electronic pressure control Different effects with mechanical pressure control (depending on application) |
Electrical inputs and outputs | |
Standard input and output | 2 analog outputs 4 digital outputs - 1 digital output for indication of system faults
- 3 digital outputs are user configurable
4 digital inputs 3 serial outputs |
Card slots for optional inputs and outputs via internal I2C bus | 2 |
Input and output cards | A IO 8 - 8 analog outputs
- 8 analog inputs
- 2 digital inputs
D IO - 6 digital inputs and 8 digital outputs
AD I/O - 4 digital inputs and 4 digital outputs
- 4 analog inputs and 4 analog outputs
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Digital inputs | Optocoupler with internal power supply (12 ... 24 V DC); switchable by floating contacts. Alternative: switchable by external power supply 12 … 24 V DC (only floating relay contacts), external power supply, negative connection linked to ground, for a specific digital input. |
Digital outputs | Floating changeover contacts, max. contact rating: Diode bypass suppression should be used for inductive loads. |
Analog inputs | -20 ... +20 mA in 50 Ω or -10 ... +10 V Rin = 0.1 MΩ, mutually isolated up to 100 V |
Analog outputs | 0/4 ... 20 mA in max. 750 Ω, common negative pole, electrically isolated from ground; freely-connectable to ground |
Termination | Screw terminal for shielded or solid cable with a maximum area of 18 AWG or 0.82 mm2 |
Climatic conditions | |
Ambient temperature | -18 ... 50 °C depending on application |
Gas supply | |
Instrument air | - At least 350 kPa for units with valves Model 11 or Valco
- At least 825 kPa for units with valves Model 50
- At least 175 kPa for airbath ovens; 85 l/min per oven
- No instrument air for airless ovens
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Carrier gas | - Nitrogen or helium in compressed gas cylinder, purity 99.998%, or hydrogen with a purity of 99.999% (depending on application).
- Typical consumption quantity: 5 100 l/month per detector module
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Combustion gas | - Hydrogen with a purity of 99.999%
- Typical consumption quantity: 2 000 l/month per detector module
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Combustion air | - Reference air (< 1 ppm THC, O2 concentration 20 … 21%). Supply through instrument air with catalytic purification (optional).
- Typical consumption quantity: 26 000 l/month
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Corrosion protection | - Purging with dry air to protect the electronics
- Airbath oven with stainless steel lining
- Airless oven made of aluminum
- Steel lining painted on outside (epoxy powder coating)
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Communication | |
Serial output | RS 232, RS 485, e.g. Modbus |
Ethernet | Standard 10/100 BaseT Ethernet with 4 RJ45 connectors e.g. Modbus TCP IP or OPC Optional - ESBF board
- Fiber-optic 100Base FX multimode with ST connection
- 3 x RJ45 and 1 x optical or
SCALANCE network blocks, e.g. for redundant connections.
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