| Measuring ranges | 4, switchable between internal and external; manual and automatic measuring range switchover possible |
| Smallest possible measuring span | 0 ... 10 ppm |
| Verification limit | 0.1 ppm |
| Largest possible measuring span | 99.999 ppm |
| Concentration units | ppm, C1, C3, C6 or mgC/m3 |
| Automatic measuring range switchover | Hysteresis, selectable |
| Measured value display | Digital concentration display (5 digits with floating point) |
| Resolution of the digital display | 0.1% of the measured value |
| Position of use | Front panel vertical |
| Conformity | CE mark
EN 50081-1, EN 50082-2 |
| Oven temperature | Adjustable 100 ... 200 °C |
| Design, enclosure | |
| Degree of protection | IP20 in accordance with EN 60529 |
| Weight | approx. 23 kg |
| Electrical characteristics | |
| Auxiliary power | 100 ... 120 V AC (rated operational range 90 V ... 132 V), 48 ... 63 Hz or 200 ... 240 V AC (rated operational range 180 V ... 264 V), 48 ... 63 Hz |
| Power consumption | approx. 150 VA in operation,
approx. 350 VA in the warm-up phase |
| EMC (Electromagnetic Compatibility) | in accordance with standard NAMUR NE21 requirements (08/98) |
| Electrical safety | in accordance with EN 61010-1, overvoltage category II |
| Fuse values | 100 ... 120 V: 4.0T/250
200 ... 240 V: 2.5T/250 |
| Gas inlet conditions | |
| Permissible sample gas pressure | |
| | < 2000 hPa abs. |
| | 600 … 1100 hPa |
| Sample gas flow | 18 ... 60 l/h (0.3 ... 1 l/min) |
| Sample gas temperature | 0 ... 200 °C |
| Sample gas humidity | < 90 % RH
(RH: relative humidity.) |
| Time response | |
| Warm-up period | approx. 2-3 h at room temperature |
| Response time (T90) | 2 ... 3 s |
| Attenuation (electrical time constant) | 0 ... 100 s, parameterizable |
| Dead time (purging time of the gas line in the device at 1 l/min) | with filter 2 ... 3 s |
| Time for signal processing in the device | < 1 s |
| Measuring response | |
| Output signal fluctuation | < 0.75% of the smallest possible measuring range according to the rating plate at an electronic attenuation constant of 1 s (this corresponds to ± 0.25% at 2σ) |
| Zero drift | < 0.5%/month of the smallest possible measuring span according to the rating plate |
| Measured value drift | < 1%/week of the appropriate measuring span |
| Repetition precision | < 1% of the appropriate measuring span |
| Minimum detectable quantity | 0.1 ppm (version for ultra-pure gas measurement: 50 ppb) |
| Linearity error | < 1% of the appropriate measuring span |
| Influencing variables | |
| Ambient temperature | < 1%/10 K related to the least possible measuring span according to the rating plate |
| Ambient pressure | < 1%/50 hPa |
| Sample gas pressure | < 2% of the measuring span/1% pressure change (within 600 … 1100 hPa) |
| Auxiliary power | < 1% at a change in the output signal span of ± 10% |
| Frequency | < 1% |
| Position influence | < 1% at an inclination < 15° |
| Electrical inputs and outputs | |
| Analog output | 0/2/4 ... 20 mA, floating; max. load 750 Ω |
| Relay outputs | 6, with freely parameterizable changeover contacts for identifying the measuring range, for example; load rating: 24 V AC/DC /1 A, floating |
| Analog inputs | 2, designed for 0/2/4 to 20 mA for pressure pick-ups externally and for correcting the influence of residual gas (interfering gas) |
| Binary inputs | 6, designed for 24 V, floating, freely parameterizable, for measuring range switchover, for example |
| Serial interface | RS 485 |
| Options | Autocal function with 8 additional binary inputs and relay outputs, also with PROFIBUS PA or PROFIBUS DP |
| Climatic conditions | |
| Permissible ambient temperature | 5 ... +45 °C in operation, -30 ... +70 °C for storage and transport |
| Permissible humidity | < 90% RH (RH: relative humidity) mid-year, for storage and transport (dew point must not be fallen below) |
