19" rack unit. Обзор. Подробное описание, цены на оборудование Siemens. Большой выбор, низкие цены на 19" rack unit

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19" rack unit

ULTRAMAT/OXYMAT 6, 19" rack unit
General information
Operating position	Front wall, vertical
Conformity	CE mark in accordance with EN 50081-1, EN 50082-2
Design, enclosure
Weight	Approx. 21 kg
Degree of protection	IP20 according to EN 60529
Electrical characteristics
EMC (ElectromagneticCompatibility)	In accordance with standard requirements of NAMUR NE21 (08/98)
Electrical safety	According to EN 61010-1, overvoltage category III
Power supply	100 ... 120 V AC (nominal range of use 90 ... 132 V), 48 ... 63 Hz or 200 ... 240 V AC (nominal range of use 180 ... 264 V), 48 ... 63 Hz
Power consumption	Approx. 70 VA
Fuse values	120 ... 120 V: F1/F2 = T 1.6 A 200 ... 240 V: F1/F2 = T 1 A
Electrical inputs and outputs (per channel)
Analog output	0/2/4 ... 20 mA, isolated; max. load 750
Relay outputs	6, with changeover contacts, freely parameterizable, e.g. for measuring range identification; load: 24 V AC/DC/1 A, isolated, non-sparking
Analog inputs	2, dimensioned for 0/2/4 … 20 mA for external pressure sensor and correction of influence of accompanying gas (correction of cross-interference)
Binary inputs	6, designed for 24 V, isolated, freely parameterizable, e.g. for measuring range switchover
Serial interface	RS 485
Options	AUTOCAL function each with 8 additional binary inputs and relay outputs, also with PROFIBUS PA or PROFIBUS DP
Climatic conditions
Permissible ambient temperature	-30 ... +70 °C during storage and transportation, 5 … 45 °C during operation
Permissible humidity	< 90% relative humidity, during storage and transportation (dew point must not be undershot)

Technical data, ULTRAMAT channel
Measuring ranges	4, internally and externally switchable; autoranging is also possible
Smallest possible measuring range	Dependent on the application, e.g. CO: 0 ... 10 vpm CO₂: 0 ... 5 vpm
Largest possible measuring range	Dependent on the application
Measuring ranges with suppressed zero point	Any zero point within 0 ... 100 vol.% can be implemented; smallest possible span 20 %
Characteristic	Linearized
Influence of interfering gases must be considered separately
Gas inlet conditions
Permissible sample gas pressure
Without pressure switch	700 ... 1 500 hPa (absolute)
With integrated pressure switch	700 ... 1 300 hPa (absolute)
Sample gas flow	18 ... 90 l/h (0.3 ... 1.5 l/min)
Sample gas temperature	Min. 0 to max. 50 °C, but above the dew point
Sample gas humidity	< 90% (relative humidity), or dependent on measuring task, non-condensing
Dynamic response
Warm-up period	At room temperature < 30 min (the technical specification will be met after 2 hours)
Delayed display (T₉₀-time)	Dependent on length of analyzer chamber, sample gas line and parameterizable damping
Damping (electrical time constant)	0 ... 100 s, parameterizable
Dead time (purging time of the gas path in the unit at 1 l/min)	Approx. 0.5 ... 5 s, depending on version
Time for device-internal signal processing	< 1 s
Pressure correction range
Pressure sensor
Internal	700 ... 1 200 hPa absolute
External	700 ... 1 500 hPa absolute
Measuring response(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)
Output signal fluctuation	< ± 1% of the smallest possible measuring range according to rating plate
Zero point drift	<± 1% of the current measuring range/week
Measured-value drift	<± 1% of the current measuring range/week
Repeatability	1% of the current measuring range
Detection limit	1 % of the smallest possible measuring range
Linearity error	< 0.5% of the full-scale value
Influencing variables(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)
Ambient temperature	< 1% of current measuring range/10 K (with constant receiver cell temperature)
Sample gas pressure	When pressure compensation has been switched on: < 0.15% of the span/1% change in atmospheric pressure When pressure compensation has been switched off: < 1.5% of the span/1% change in atmospheric pressure
Sample gas flow	Negligible
Power supply	< 0.1% of the current measuring range with rated voltage ± 10%
Environmental conditions	Application-specific measuring influences possible if ambient air contains measured component or cross interference-sensitive gases

Technical data, OXYMAT channel
Measuring ranges	4, internally and externally switchable; automatic measuring range switchover also possible
Smallest possible span (relating to sample gas pressure 1 000 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)	0.5 vol.%, 2 vol.% or 5 vol.% O₂
Largest possible measuring range	100 vol. % O₂
Measuring ranges with suppressed zero point	Any zero point within 0 ... 100 vol.% can be implemented, provided that a suitable reference gas is used
Gas inlet conditions
Permissible sample gas pressure
With pipes	500 ... 3 000 hPa absolute
With hoses
Without pressure switch	500 ... 1 500 hPa absolute
With pressure switch	500 ... 1 300 hPa absolute
Sample gas flow	18 ... 60 l/h (0.3 ... 1 l/min)
Sample gas temperature	0 ... 50 C
Sample gas humidity	< 90% RH (relative humidity)
Reference gas pressure (high-pressure version)	2 000 ... 4 000 hPa above sample gas pressure, but max. 5 000 hPa
Reference gas pressure (low-pressure version)	Min. 100 hPa above sample gas pressure
Dynamic response
Warm-up period	At room temperature < 30 min (the technical specification will be met after 2 hours)
Delayed display (T₉₀ time)	Min. 1.5 ... 3.5 s, depending on version
Damping (electrical time constant)	0 ... 100 s, parameterizable
Dead time (purging time of the gas path in the unit at 1 l/min)	Approx. 0.5 ... 2.5 s, depending on version
Time for device-internal signal processing	< 1 s
Pressure correction range
Pressure sensor
Internal	500 ... 2 000 hPa absolute
External	500 ... 3 000 hPa absolute
Measuring response(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)
Output signal fluctuation	< 0.75% of the smallest possible measuring range according to rating plate, with electronic damping constant of 1 s (corresponds to ± 0.25% at 2 )
Zero point drift	< 0.5%/month of the smallest possible measuring span according to rating plate
Measured-value drift	0.5%/month of the current measuring range
Repeatability	1%/month of the current measuring range
Detection limit	1% of the current measuring range
Linearity error	1% of the current measuring range
Influencing variables(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)
Ambient temperature	< 0.5%/10 K referred to smallest possible span according to rating plate With measuring span 0.5%: 1%/10 K
Sample gas pressure (with air (100 hPa) as reference gas, correction of the atmospheric pressure fluctuations is only possible if the sample gas can vent to ambient air)	When pressure compensation has been switched off: < 2% of the current measuring range/1% atmospheric pressure change When pressure compensation has been switched on: < 0.2% of the current measuring range/1% atmospheric pressure change
Accompanying gases	Deviation from zero point corresponding to paramagnetic or diamagnetic deviation of accompanying gas
Sample gas flow	< 1% of the smallest possible span according to rating plate with a change in flow of 0.1 l/min within the permissible flow range
Power supply	< 0.1 % of the current measuring range with rated voltage ± 10%