M&C SP2006-H/DIL series heated dilution gas sampling probe

Basic Information

Product: SP ®  Series Heating Dilution Sampling Probe

Model: SP2006-H/DIL (180 ℃), SP2006-H280/DIL (280 ℃)

Usage: Continuous sampling and online dilution of flue gas/process gas, used for toxic gas, humidity measurement, and emission monitoring

Version: V1.00.02

Compliance: CE (EMC 2014/30/EU, Low Voltage 2014/35/EU)

Application scenarios: Non explosion zones, smoke emissions, process gas analysis, dilution/anti condensation conditions required

Core functions and principles

1. Working principle: Dilution principle of critical nozzle

Based on supersonic critical nozzle: When the pressure difference before and after the nozzle is greater than 0.5 bar (g), the flow rate remains constant

Vacuum is generated by an injector and driven by a diluent gas

Dilution ratio: 10:1~500:1 (Injector I); 50:1 ~ 2000:1（Injector II）

Advantages: Not affected by process temperature/atmospheric pressure/micro pressure fluctuations, stable measurement

2. Key features

Full process heating: probe+dilution unit integrated heating, anti condensation, anti acid corrosion

Preheat the dilution gas to the probe temperature to avoid sample cooling

Modular design, supporting bypass, blowback, isolation valve, calibration gas interface

Extremely low sampling flow, fast response, and low loss

Technical Parameters (Key Summary)

Heating temperature: 180 ℃/280 ℃

Dilution ratio: a (500:1), b (200:1), c (100:1), d (50:1), e (30:1, standard) f(20:1)、g(10:1)

Sample flow rate: 1.4… 55 Nl/h (with nozzle)

Dilution gas pressure: inlet min 4.5 bar (g), max 16 bar (g)

Material: 316Ti, quartz FKM（Viton）、 graphite

Weight: Approximately 30kg

Power supply: 230VAC/50Hz or 115V/60Hz, heating 800W

Pressure fluctuation impact: 50mbar fluctuation → error<1%

Model and Options (Modular Configuration)

SP2006-H/DIL: 180 ℃, without ball valve

SP2006-H280/DIL: 280 ℃, no ball valve

SP2006-H/DIL-VA: Manual ball valve with heating

SP2006-H/DIL-B: with bypass injector (exhaust)

SP2006-H/DIL-BR: with bypass injector (reflux process)

SP2006-H/DIL-I: with 1 voltage control+2 meters+installation package

SP2006-H/DIL-VA-MS1: equipped with 2 pressure controls and 3 meters (for bypass)

Optional: Backblowing (BB/BBF), 2L air storage tank, external ceramic filter

Safety Notice (Mandatory Compliance)

Not suitable for use in explosion-proof areas

Live working is only allowed for professional electrical personnel

Before starting up, it is necessary to confirm that the voltage is consistent with the nameplate

Cut off gas, power, and cooling before maintenance

Do not touch high temperature surfaces, protective gloves must be worn

When the low temperature alarm (heating failure) occurs, the dilution gas must be cut off

The sample gas may be corrosive and requires protection

Structure and Installation

1. Structural composition

Probe body+heating system

Filter (ceramic/fiberglass)

Dilution unit (critical nozzle+injector)

Bypass unit (optional)

Backblowing system (optional)

Temperature controller (70304G)+electrical junction box

19 “control disk-S/- S1 (optional)

2. Installation points

Installation position: Easy to maintain, tilted about 10 ° downwards to facilitate condensate reflux

Flange: Standard 3 “150lbs

To avoid radiant heat exceeding 60 ℃, it is necessary to install insulation panels

The filter needs to be checked for sealing regularly

3. Gas path connection (specification)

Dilution gas/calibration gas/vacuum gauge: 1/4“

Diluted sample gas outlet/blowback: 3/8“

Card sleeve connector+support sleeve must be used for sealing inspection

It is recommended to use a heat tracing pipeline for long pipelines

4. Electrical connection

Power supply: L/N/PE, cable ≥ 3 × 1.5mm ²

Temperature controller: 70304G, connected to PT100 or Fe CuNi thermocouple

The low temperature alarm contact must be connected to cut off the dilution gas

Recommended temperature resistant cable with external main switch and fuse

Initial Starting and Debugging

First, heat up: turn on the power and raise the temperature for about 2 hours to reach the set temperature

Re ventilation: It is strictly prohibited to introduce dilution gas before reaching the temperature

Adjust the pressure of the dilution gas to make the vacuum gauge>-0.6 bar

Check flow rate, vacuum, sealing, and heating stability

The bypass model needs to set the bypass pressure according to the curve

Calibration

Must be calibrated under operating conditions

Calibration gas pressure>0.7 bar

No bypass: Calibration air flow rate ≥ 3 times nozzle flow rate

There is a bypass: the calibrated air flow rate is greater than the total flow rate of the bypass and nozzle by 10%

Adjust the dilution ratio by fine-tuning the dilution gas pressure

Closing Down

Blow with inert gas before shutdown to prevent residual condensation of corrosive components

First cut off the gas, then cut off the power for cooling

Maintenance and Repair (Core Chapter)

1. Daily maintenance: replace filter element and seal

Stop gas supply, cut off power for cooling

Open the quick opening filter cover

Replace the filter element and Viton seal ring

Tighten in cold state, then re tighten after hot state

No need to disassemble the entire machine for maintenance

2. Disassembly of dilution/bypass module

After cooling, open the casing

Loosen the rolling nut and clamp

Remove the module and prohibit mechanical needle cleaning of the nozzle

Only ultrasonic cleaning of nozzles and sprayers is possible

Check and replace O-ring (Viton)

3. Key taboos

Strictly prohibit mechanical dredging of critical nozzles

Protective goggles and anti-corrosion gloves must be worn for maintenance

Spare parts list (commonly used)

Filter element: Ceramic 2 µ m/Fiberglass 0.1 µ m

Sealing: Viton O-ring, flange gasket

Heating core PT100、 thermocouple

Injector, dilution module, bypass module

Filter cover assembly, clamp, compression screw