MAXUM edition II classic oven

General

Smallest measuring ranges (depending on application)

• Thermal conductivity: 0 ... 500 ppm
• Flame ionization: 0 ... 1 ppm

Temperature range in oven

Application-specific, depending on temperature class 5 ... 350 °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

Calibration

Comparison measurement with external standard

• Type

Manual or automatic

• Zero value

Automatic baseline correction

• Span

Standard sample cylinder (single or multipoint calibration possible)

Design, enclosure

Mounting

• Spacing on left: 460 mm from walls and other devices
• Spacing on right: 460 mm in all cases
• Spacing at front: 654 mm in all cases
• Wall-mounted units
• Center-to-center: 1 120 mm in all cases

Weight

77 kg

Degree of protection

IP54, Category 2

Danger class

Standard configurations:

• Certified according to ATEX with air or nitrogen purging for Zones 1 and 2 (EEx pyedmib IIB + H₂)
• 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.

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

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

Power supply

• 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

Gas inlet conditions

Sample flow

5 ... 100 ml/min (depending on application)

Sample filter size

0.1 ... 5 µm with gaseous samples depending on type of valve
Max. 0.3 µm with 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 ?l

Sample temperature

-20 ... +150 °C

Material of parts wetted by sample

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 between

2 and 100%: ± 0.5 %;

0.05 and 2%: ± 1 %;

50 and 500 ppm: ± 2 %;

5 and 50 ppm: ± 3 %;

0.5 and 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 for output of system faults, 3 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

Digital inputs

Optocoupler with internal power supply (12 … 24 V DC); switchable by dry contacts.

Alternative: switchable by external power supply 12 … 24 V DC (only dry relay contacts), external power supply, negative connection linked to ground, for a specific digital input.

Digital outputs

Dry changeover contacts, max. contact rating:

1 A with 30 V DC.

Diode bypass suppression should be used for inductive loads.

Analog inputs

-20 ... +20 mA into 50 ? or

-10 ... +10 V R_in = 0.1 M?, alternate insulation up to 100 V

Analog outputs

0/4 ... 20 mA into max. 750 ?, 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 application-dependent

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 fan-free ovens

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

Combustion gas

• Hydrogen with a purity of 99.999%
• Typical consumption quantity: 2 000 l/month per detector module

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

Corrosion protection

• Purging with dry air to protect the electronics
• Air bath oven with stainless steel lining
• Airless oven made of aluminum
• Steel lining painted on outside (epoxy powder coating)

Communication

Serial output

RS 232, RS 485, e.g. Modbus

Ethernet

Standard 10/100 BaseT Ethernet with 4 RJ 45 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 components e.g. for redundant connections.

MAXUM edition modular oven

General

Smallest measuring ranges (depending on application)

• Only for gaseous sample
• Thermal conductivity: 0 ... 500 ppm

Temperature range in oven

Application-specific, depending on temperature class 60 ... 80 °C depending on application temperature class T4

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

Calibration

Comparison measurement with external standard

• Type

Manual or automatic

• Zero value

Automatic baseline correction

• Span

Standard sample cylinder (single or multipoint calibration possible)

Design, enclosure

Mounting

• Spacing on left: 460 mm from walls and other devices
• Spacing on right: 460 mm in all cases
• Spacing at front: 654 mm in all cases
• Wall-mounted units
• Center-to-center: 1 120 mm in all cases

Weight

60 kg

Degree of protection

IP54, Category 1

Danger class

Standard configurations:

• Certified according to ATEX with air or nitrogen purging for Zones 1 and 2 (EEx pyedmib IIB + H₂)
• 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.

Configuration

Oven options

Single oven or two independent, airless ovens. Optionally small oven for one small analytical module, large oven for two small analytical modules or one large analytical module. Two small ovens, two large ovens or any combination of 2 ovens is possible. Each dual oven version has two separate oven areas with separate doors which operate completely independently.

Detector modules for

thermal conductivity

Detectors

1 4-cell TCD for small analytical modules and 1- or 2-
4-cell TCD for large analytical modules

Sampling and column valves

Diaphragm valves Model 50
small analytical module with 1 x M50
large analytical module with 1, 2 or 3 M50

Columns

Packed, micropacked or metal capillary columns

Regulation of gas supply

Up to 6 electronic pressure regulator channels and up to 4 mechanical pressure regulators

Electrical characteristics

Power supply

• Single-phase AC, 85 ... 264 V, 47 … 63 Hz
• Max. 655 VA, nominal 280 VA

Optional:

24 V DC ± 10% 10 A with 32 V voltage limiting

Max. 100 mV residual ripple and interferences minimum to maximum at 20 MHz

Fusing at max. 20 A

External 24 V supply must accept minus to ground

Gas inlet conditions

Sample flow

5 ... 100 ml/min (depending on application)

Sample filter size

0.1 µm with gaseous samples

Minimum sample pressure

35 kPa, standard

Maximum sample pressure

200 kPa standard, higher pressure as option

Maximum sample temperature

80 °C maximum

Materials wetted by sample

Stainless steel, aluminum, Viton, polyimide and Teflon

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 between

2 and 100%: ± 0.5 %;

0.05 and 2%: ± 1 %;

50 and 500 ppm: ± 2 %;

5 and 50 ppm: ± 3 %;

0.5 and 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 digital outputs (1 for output of system faults, 1 is user-configurable);
• 2 serial outputs, 1 x RS 232/RS 485, 1 x RS 485

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

Digital inputs

Optocoupler with internal power supply 24 V; switchable by dry contacts.

Alternative: switchable by external power supply 12 … 24 V DC (only dry relay contacts), external power supply, negative connection linked to ground, for a specific digital input.

Digital outputs

Dry changeover contacts, max. contact rating:

1 A with 30 V DC.

Diode bypass suppression should be used for inductive loads.

Analog inputs

-20 ... +20 mA into 50 ? or

-10 ... +10 V R_in = 0.1 M?, alternate insulation up to 100 V

Analog outputs

0/4 ... 20 mA into max. 750 ?, 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

Gas supply

Instrument air

• At least 825 kPa for units with valves Model 50
• No instrument air for fan-free ovens

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

Corrosion protection

• Purging with dry air to protect the electronics
• Air bath oven with stainless steel lining
• Airless oven made of aluminum
• Steel lining painted on outside (epoxy powder coating)

Communication

Serial output

RS 232, RS 485, e.g. Modbus

Ethernet

Standard 10/100 BaseT Ethernet with 2 RJ 45 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 components e.g. for redundant connections.