Mass gas flow meter — SS 20.600
Спецификация SS 20.600
Available on request
Delivery across Russia
Order phone: +7(800)777-18-50
Description
The SCHMIDT SS 20.600 mass gas flow meter is an excellent solution capable of meeting diverse industrial needs. It can be used for monitoring compressed air flow, controlling the flow of various gases supplied for combustion, and recording consumption data. The sensor can measure not only the normalized flow (mass flow) but also temperatures up to 120°C. It can be used on pipelines of various diameters starting from DN25, and the probe length can reach up to 1 meter. If the basic version with an operating pressure up to 16 bar is insufficient, there is a version with an operating pressure up to 40 bar.
Mass Air (Gas) Flow Sensor
This sensor is easy to install: simply tighten the fitting included in the kit, place the sensor in the gas flow, orient the sensitive element relative to the flow and the center of the pipeline, connect the power supply – and the flow meter is ready to operate!
This sensor operates without any moving parts, and the measurement principle used eliminates drift or wear. This allows maintenance to be minimized, periodically blowing and washing the sensitive element depending on the gas contamination.
The special design of the sensitive element can detect normalized flow velocities from 0.2 to 220 m/s. To achieve accurate measurements across the entire velocity range, each flow meter is individually calibrated in a wind tunnel under pressure. For the use of immersion flow meters to measure various gases, special versions are available: for oxygen, CO2, methane. Particular attention should be paid to hydrogen flow measurement (which may become in demand in the near future). This task is also solved with the special SS 20.600 version. For use in potentially explosive environments, the immersion flow meter can be manufactured in an explosion-proof design (ATEX).
- Technical Specifications
- Overall Drawing
- Connection diagram
- Applications
| Technical specifications SS 20.600 | |
| Unit of measurement wN | Velocity wN, normalized to standard conditions 20 °C and 1013.25 hPa |
| Measured media | Air or nitrogen; optionally: natural gas, biogas, CO2, hydrogen and other gases and gas mixtures |
| Measured flow wN | Standard: 0 ... 10 / 20 / 60 / 90 / 140 / 220 m/s |
| Custom range: 10...220 m/s, step 0.1 m/s | |
| Min. measurable value wN | 0.2 m/s |
| Medium temperature measurement range TM | Basic version: - 20 ... + 120 °C |
| ATEX version: - 40 ... + 120 °C | |
| Error wN (basic version) | ± 3 % of measured value + (0.4 % of measuring range; min. 0.08 m/s)* |
| Error wN (high-precision calibration) | ± 1 % of measured value + (0.4 % of measuring range; min. 0.08 m/s) * |
| (only for air, nitrogen, oxygen) | |
| Reproducibility wN | ± 1 % of measured value. |
| Response time t90 wN | 1 s (step from 0 to 5 m/s) |
| Temperature gradient wN | < 8 K/min at wN = 5 m/s |
| Temperature measurement accuracy TM | ± 1 K (10 ... 30 °C); ± 2 K in the considered range at wN > 5 m/s |
| Operating temperature (probe) | Basic version: - 20 … + 120 °C ATEX version: - 40 ... + 120 °C |
| Operating temperature (electronic components) | - 20 … + 70 °C |
| Storage temperature | - 20 … + 85 °C |
| Material (sensor housing) | Anodized aluminum |
| Material (probe, compression fitting) | Stainless steel 1.4571 |
| Material (sensitive element) | Platinum element (glass passivated), PPO / PA |
| Material (cable gland) | Anodized aluminum |
| Material (connecting cable in remote version) | PUR insulation, halogen-free, UL |
| Operating medium | gas without condensate (up to 95 % relative humidity) |
| Humidity range | Up to 95 % relative humidity, without condensate |
| Maximum pressure | 16 or 40 bar |
| Indication | 4 dual LED indicators (green/red/orange) |
| Power supply | 24 VDC ± 20 % |
| Current consumption | About 50 mA (without pulse outputs); max. 250 mA |
| Analog output for temperature and flow Auto detection U / I |
0 … 10 V / 4 … 20 mA (short circuit protection) Voltage output: > 550 Ω Current output: < 500 Ω Hysteresis: 50 Ω |
| Pulse output | Frequency 0 … 100 Hz, optionally: 1 pulse / 1 m³; 1 pulse / 0.1 m³ / h; 1 pulse / 0.01 m³ / h (max. 100 Hz) 1. Dry contact without galvanic isolation 2. Solid state relay (galvanic isolation); max. 30 V / 50 mA High level:> e.g. power supply - 3 V Short-circuit current limitation: 200 mA |
| Electrical Connection | M12 connector, 8-pin |
| Maximum cable length | Voltage output: 15 m, current output / Pulse: 100 m |
| Orientation in space | arbitrary (except downward flow with speed wN < 2 m/s) |
| Installation error | ± 3° to flow direction |
| Minimum immersion depth | 20 mm |
| Protection rating | IP 65 (housing), IP 67 (sensitive element) / III or PELV |
| ATEX category | II 3G Ex nA ic IIC T4 Gc |
| Probe length | Standard: 120 / 250 / 400 / 600 mm; non-standard lengths from 120 to 1,000 mm |
| Weight | about 500 g max. (without connecting cable) |
Basic version:
Remote version:
Explosion-proof version:
Remote explosion-proof version:
|
Connector diagram |
Contact |
Designation |
Function |
Wire |
|
|
1 |
Pulse 1 |
Output flow signal (digital: pulse) |
White |
|
2 |
UB |
Operating voltage: 24 VDC ± 20% |
Brown |
|
|
3 |
Analog TM |
Output medium temperature signal |
Green |
|
|
4 |
Analog wN |
Output flow signal (analog: U / I) |
Yellow |
|
|
5 |
AGND |
Reference potential for analog outputs |
Gray |
|
|
6 |
Pulse 2 |
Galvanically isolated pulse output |
Pink |
|
|
7 |
GND |
Operating voltage: ground |
Blue |
|
|
8 |
Pulse 2 |
Galvanically isolated pulse output |
Red |
|
|
|
Shield |
Guide protrusion |
Mesh |
Analog output connection:
Pulse output connection:
Galvanically isolated pulse output connection:
You may find useful
-min.jpg "Multichannel Digital Data Recorder — DS 500 buy at a low price in St. Petersburg")
-min.jpg "Buy industrial gas flow meter at a low price in St. Petersburg — VA 570")
