The Cerabar PMC21 is a compact pressure transmitter. A capacitive, non-oil-filled ceramic diaphragm sensor is used for absolute or gauge pressure measurement with a range from 100 mbar to 40 bar. The transmitter can measure under harsh conditions in the process industry, with a degree of protection up to IP68, a highly wear-resistant Ceraphire diaphragm and a high-quality 316L housing. With multiple approvals (e.g. explosion protection approval or marine approval), it meets the requirements of most measurement applications.
Advantages
Compact design and customizable measuring range enable convenient installation and setup in process applications
Reference accuracy of up to 0.3%, combined with high long-term stability and repeatability, ensuring high-quality process monitoring; all tests passed during production ensure high quality
A wide range of additional options and process connections fully cope with even harsh conditions; instruments with IP68 degree of protection are also available
The PMC21 meets the documentation, traceability and safety requirements of plants, can be used in various hazardous areas, and has marine approval and EN10204 3.1 material certification
Areas of application
The capacitive pressure transmitter uses a non-oil-filled ceramic diaphragm sensor for absolute or gauge pressure measurement of gases or liquids.
Process connection: thread
Process temperature: -25...+100°C (-13...+212°F)
Process pressure: 100 mbar...+40 bar (1.5...+600 psi)
Measurement accuracy: ±0.3% of full scale
International explosion protection approval, marine approval and cleaning for oxygen applications
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Technical documentation
Technical data
Documents/Manuals/Software
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Source:Endress+Hauserwebsite public information
Technical Data
CompareContinuous / Liquids
| Measuring Principle | Absolute and gauge pressure |
| Characteristic / Application | Cost effective pressure transducer, capacitive sensor with ceramic measuring diaphragm |
| Supply / Communication | 10…30 VDC |
| Accuracy | 0.3 % |
| Long term stability | 0.2 % of URL/year |
| Ambient temperature | -40 °C…+85 °C (-40 °F…+185 °F) |
| Process temperature | -25 °C…+100 °C (-13 °F....+185 °F) |
| Process pressure / max. overpressure limit | max. 60 bar (900 psi) |
| Pressure measuring range | +100 mbar…+40 bar (+1.5 psi...+600 psi) |
| Process connection | Threads: G1/4, G1/2, MNPT 1/4, MNPT 1/2, DIN13, JIS R1/2 |
| Communication | 4...20 mA, IO-Link |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, NEPSI, UK Ex |
| Design approvals | EN 10204-3.1 Final inspection report Cleaned from oil and grease Cleaned for oxygen applications |
| Marine approval | RINA, KR |
Pressure
| Measuring Principle | Absolute and gauge pressure |
| Characteristic | Cost effective pressure transducer, capacitive sensor with ceramic measuring diaphragm |
| Supply voltage | 10…30 VDC |
| Reference Accuracy | 0.3 % |
| Long term stability | 0.2 % of URL/year |
| Process temperature | -25 °C…+100 °C (-13 °F....+185 °F) |
| Ambient temperature | -40 °C…+85 °C (-40 °F…+185 °F) |
| Measuring cell | +100 mbar…+40 bar (+1.5 psi...+600 psi) |
| Max. overpressure limit | max. 60 bar (900 psi) |
| Process connection | Threads: G1/4, G1/2, MNPT 1/4, MNPT 1/2, DIN13, JIS R1/2 |
| Communication | 4...20 mA, IO-Link |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, NEPSI, UK Ex |
| Design approvals | EN 10204-3.1 Final inspection report Cleaned from oil and grease Cleaned for oxygen applications |
| Marine approvals | RINA, KR |
Related Models
| Model | Name |
|---|---|
| PMC21-2H36/0 | 压力变送器 |
| PMC21-AA1M1CJWBJAZ1 | 压力变送器 |
| PMC21-AA1M1EJWBJA | 压力变送器 |
| PMC21-AA1M1KBWBJARM | 压力变送器 |
| PMC21-AA1M1KBWBJJ | 压力变送器 |
| PMC21-AA1U1CBWBJA | 压力变送器 |
| PMC21-CA1U1QBWBJA | 压力变送器 |
| PMC21-CA1U1RBWBJA | 压力变送器 |
Case Studies
市政污水处理污水处理厂 · 表压和绝压应用案例
项目背景
市政污水处理客户在污水处理厂环节,长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移,影响达标排放」的困扰,对表压和绝压的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的表压和绝压,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应市政污水处理复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
食品饮料食品生产线 · 表压和绝压应用案例
项目背景
食品饮料客户在食品生产线环节,长期面临「卫生级测量要求高,在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰,对表压和绝压的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的表压和绝压,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应食品饮料复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
化工制药反应釜与储罐 · 表压和绝压应用案例
项目背景
化工制药客户在反应釜与储罐环节,长期面临「介质腐蚀性强、工况复杂,仪表需耐腐蚀且防爆」的困扰,对表压和绝压的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的表压和绝压,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应化工制药复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
电力能源电厂锅炉与汽机 · 表压和绝压应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节,长期面临「高温高压工况下测量不稳定,维护停机成本高」的困扰,对表压和绝压的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的表压和绝压,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应电力能源复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。







