CEQ-CEQ1300 Pressure Transmitter Types Complete Guide，Selection Is No Longer Difficult

In the field of industrial automation control，the selection of diffused silicon liquid and gas pressure sensors directly affects system stability and measurement accuracy。As a mainstream product line in the market，the CEQ-CEQ1300 series includes multiple models such as LD-LD183，PS-201，PN-M2，and their distinctive functional configurations often make selection difficult for operators。This article will systematically review the technical characteristics，applicable scenarios，and maintenance key points of 10 core products，helping you make scientific decisions based on medium characteristics，environmental conditions，and control requirements。

1、Basic Pressure Monitoring Solutions：LD-LD183 and YBS-S100

    The LD-LD183 pressure transmitter uses a 316L stainless steel isolation diaphragm，with a standard range of -0.1~60MPa and an accuracy of ±0.25%FS。Its innovative temperature compensation algorithm can maintain stability in environments from -20℃~85℃，making it especially suitable for long-term monitoring of hydraulic systems。Daily maintenance notes：check the aging condition of the sealing ring every month，clean the pressure port with anhydrous ethanol every quarter，and avoid crystal accumulation affecting diaphragm sensitivity。

    The outstanding advantage of the YBS-S100 model lies in its on-site calibration function。Zero/full-scale calibration can be quickly completed through panel buttons，and the built-in EEPROM stores calibration parameters。It is recommended to perform system calibration once every 6 months，and the calibration frequency should be increased when the medium temperature change exceeds 50℃。Its split-structure design allows the sensor and electronic unit to be installed separately，effectively solving the signal drift problem in high-temperature environments。

2、Intelligent Control Solutions：PS-201 and PN-M2

    The PS-201 pressure transmitter integrates dual relay alarm outputs and supports independent setting of upper/lower limits。When pressure over-limit is detected，in addition to triggering audible and visual alarms，status codes can also be uploaded via the MODBUS RTU protocol。Typical applications include：compressor safety protection（alarm setpoint 7.5MPa），pipeline rupture early warning（sudden change rate monitoring function）。Installation notes：the alarm control cable should use shielded twisted pair cable and maintain a distance of more than 30cm from power cables。

    The PN-M2 model is specially designed for remote monitoring scenarios，providing a dual output mode of 4-20mA+HART protocol。Its unique signal enhancement technology can maintain ±0.1% signal attenuation compensation within a transmission distance of 2000 meters。Field application cases show that，in oil storage tank farm monitoring systems，the electromagnetic interference resistance of this model is more than 3 times better than conventional products。The matching MBC-1 manual records in detail the explosion-proof certification parameters（Ex d IIC T6）and intrinsically safe wiring requirements。

3、Special Customized Products：ET-A and HB-S

    The ET-A series supports full-parameter customization，including special range segmentation（such as 0-3MPa/3-6MPa dual-section output），explosion-proof grade enhancement（up to Ex tD A21）。A fluoroplastic-coated version was once customized for a semiconductor manufacturer，successfully solving the difficult problem of HF acid measurement。The HB-S model provides services for OEM customers such as brand LOGO printing and freely customized cable length，and its quick-response production line can meet urgent order requirements。

4、Core Key Points for Installation and Commissioning

    The installation instructions for the PCM-D pressure transmitter emphasize：for gas measurement，vertical installation is recommended，with the process connection facing downward to avoid condensate accumulation；for liquid measurement，the sensor should be kept below the pressure tapping point，referring to the “full-pipe installation” principle of the MS-MS132 model。Special attention during commissioning：after the first power-on，warm up for 30 minutes before calibration，and use anti-vibration brackets in vibration environments（additional vibration reduction treatment is required when amplitude ＞0.5mm）。

    The long-term stability of diffused silicon sensors depends on proper maintenance：check the waterproof performance of cable connectors every quarter（meeting IP65 standard），and perform a sealing test every year（hold at 1.5 times rated pressure for 15 minutes）。When output signal fluctuation occurs，refer to the CEQ-CEQ1300 fault code manual：ERR01 indicates abnormal power supply，and ERR03 indicates sensor overload。

5、In-depth Analysis of Industry Application Scenarios

    PS-201 performs excellently in boiler room safety monitoring systems，and its fast response characteristic（＜10ms）can trigger interlock shutdown in time。Practical data from a thermal power plant show that after using this model，pressure out-of-control accidents decreased by 82%。PN-M2 is widely used in smart water services，working with SCADA systems to realize distributed monitoring of pipe network pressure，and in a typical case helped a water plant reduce the leakage rate from 18% to 7%。

    The unique value of LD-LD183 in the field of construction machinery lies in its anti-vibration design（passed 5g/2000Hz random vibration test）。Installation testing by an excavator manufacturer showed that it still maintained ±0.3% accuracy after 3000 hours of continuous operation。YBS-S100，with its on-site calibration function，has become the preferred choice for GMP-certified equipment in pharmaceutical enterprises，avoiding losses caused by production shutdown and outsourced inspection。

By systematically understanding the technical characteristics of each model in the CEQ-CEQ1300 series，operators can accurately match working condition requirements。Whether it is the intelligent alarm control of PS-201 or the deep customization capability of ET-A，diffused silicon technology can provide reliable pressure monitoring solutions。It is recommended to download the full selection manual（including CAD drawings of all models），or contact our technical engineers for one-on-one selection support。

Take Action Now：Call 400-xxx-xxxx to obtain the PDF version of the “Diffused Silicon Pressure Sensor Selection Guide”，or schedule an on-site product demonstration。