On-Site Pulsar Preventative Solutions
Periodic maintenance of Pulsar systems is essential to ensure accurate temperature measurement and avoid costly shutdowns. Our E2T Pulsar support services are designed to keep your E2T Pulsar system performing with minimal downtime for the long-term.
We can schedule to have an experienced and dedicated Field Service Engineer come out to your site to perform field commissioning and inspection. This includes troubleshooting and field verification of calibration of E2T Pulsar II, Pulsar III, and PULSAR 4 units.
E2T Pulsar On-Site Maintenance Services
Pulsar Infrared Pyrometers are perhaps the most precise way to monitor process temperatures inside sulphur reactors and tail gas incinerators. The control of the reaction furnace temperature is important for preventing damage to the refractory lining at high temperatures. Proper temperature control also prevents ammonium salts from plugging converters at low temperatures.
In applications where waste gases are being incinerated, such as ammonia and hydrocarbons, temperature measurement is critical to ensure temperatures are adequate to ensure their destruction.
A typical SRU may have two or three Pulsar Systems installed to monitor temperatures in different areas of the reactor. Both Gas and Refractory measurements are critical to furnace operations. The Gas (Flame) measurement is used by the operator to detect thermal events before IR energy is absorbed by the refractory, creating a refractory thermal event. This method of early warning, by use of the Gas (Flame) temperatures, allows added time for operators to make process changes and reduce potential refractory thermal events before they can become critical. This notification occurs by triggering a high level alarm system based on the refractory temperature measurement’s set point.
LumaSense Technologies, Inc. can schedule to have an experienced and dedicated Field Service Engineer come out to your site to perform field commissioning and inspection. This includes troubleshooting and field verification of calibration of E2T Pulsar II, Pulsar III, and PULSAR 4 units.
The E2T Pulsar service will ensure your Pulsar device is calibrated precisely and within range per original factory specifications. The benefits of these services are to prevent potential problems, ensure optimum performance, and avoid costly shutdowns.
Checking for proper SOF mounting hardware. Replacing parts as needed.
Aligning, field calibration verification, and focusing each Pulsar unit.
Cleaning the flame-path and viewport, if necessary.
Checking and adjusting the combustion and viewport purge rates.
Setting the correct spectral band on each channel, per customer requirements.
Taking a T/C reading and making appropriate adjustments if the default emissivity settings are not satisfactory.
During the service event, a NIST certified transfer standard will be used to verify the Pulsar temperature readings.
A service report will be generated for each instrument showing the data collected, adjustments made, and any recommended action to be taken. The benefits of these services are to prevent potential problems, ensure optimum performance, and avoid costly shutdowns.
Optical and Purge Check
A clear optical path is critical. If the flame-path is even partially blocked, radiation from the target cannot reach the Pulsar detector. If the viewport assembly (VP-10) or lens becomes smudged or dirty, attenuation of the signal will occur, resulting in abnormally low readings.
Viewport windows and o-rings will be inspected and cleaned or replaced as necessary. Any blockages noted in the nozzle will be removed using a clean out probe. Instrument alignment and focus will be adjusted.
It is important that purge rates are correct for both the viewport and port. The viewport and combustion purge will help prevent any future build-up of Sulphur or debris, which could block the flame-path. The purge rates will be checked and adjusted to proper values.
Electronics and Output Temperature Verification
The Pulsar chassis or electronics module will be removed from the EXP housing and taken to a clean work area to be thoroughly checked and tested. Pulsar II units in the NEMA housing (7000-1D2), will need to be removed from the SOF mounting bracket to be serviced.
On Pulsar II, all dc voltages will be checked, and the chopper motor will be inspected. Chopper motor failure is the leading cause of failure in Pulsar II. Pulsar III and PULSAR 4 do not have chopper motors. If the output cannot be brought into spec, it will be recommended the unit be sent to the factory for repair. For Pulsar III and PULSAR 4, the correct sub-range will be verified. The instrument will then be re-installed at the SRU.