4-20 mA dew-point transmitter METPOINT®️ DPM SD23

RS-4854-wirewith temperature measurement

Overview

• Set composed of the METPOINT®️ DPM SD23 pressure dew point transmitter and the METPOINT®️ BDL compact data logger.
• Includes: MK‑Basic‑PN16 measurement chamber with plug‑in nozzle NW 7.2 for quick coupling, pre‑configured and ready to install, 5 m connection cable.

Main features

• METPOINT®️ DPM SD23: precise and reliable measurement of pressure dew point, temperature and relative humidity (down to −60 °Ctd).
• METPOINT®️ BDL compact: logging and immediate display of measured values, alarms and statistical evaluation for quality assurance and energy management.
• Continuous monitoring of critical points in compressed air to detect condensation, water vapor, leaks and to optimize system efficiency.
• Interfaces and inputs: analog and digital outputs (4...20 mA, RS485), two integrated sensor inputs; two additional inputs (digital/analog) available as options.
• Recording options: optional data logger memory (product page indicates 2 GB; some versions offer up to 4 GB depending on configuration).

Technical table (excerpts)
Measurement range: –60 ... +30 °Ctd
Max. allowable operating overpressure: 50 bar [g]
Maximum measurement deviation: ±4 K for -60 ... -50 °Ctd; ±3 K for -50 ... -30 °Ctd; ±2 K for -30 ... -10 °Ctd; ±1 K for -10 ... +30 °Ctd
Response time t95: < 10 s (dry → wet); < 40 s (wet → dry)
Supply: 14 ... 30 VDC
Load (load resistance): RL = max. 416 Ω at 24 V DC
Outputs: 4 ... 20 mA, analog, 4‑wire; RS485, digital output, 4‑wire
Process medium temperature: -30 °C ... +70 °C
Ambient operating temperature: -25 °C ... +60 °C
Storage and transport temperature: -40 °C ... +85 °C
Ambient humidity: 0 ... 95 %, non‑condensing

Advantages and applications

• Ensures continuously dry and compliant compressed air for sensitive industries (food, pharmaceutical, production, etc.).
• Provides decision support for energy and operational savings through historical data and real‑time alarms.
• Suitable for stationary monitoring and integration into management systems (alarm output and transmission to higher‑level systems possible).

Characteristics / technical specifications

• Model: METPOINT®️ DPM SD23 (transmitter) with METPOINT®️ BDL compact (data logger)
• Product reference (Ref.): 4031322
• Weight: 7.5 kg
• Dew point measurement range: –60 ... +30 °Ctd
• Max. operating pressure: 50 bar (g)
• Accuracy (max. deviation) by range: ±4 K / ±3 K / ±2 K / ±1 K (depending on range)
• Response time t95: < 10 s (dry → wet), < 40 s (wet → dry)
• Supply: 14 ... 30 V DC
• Outputs: 4...20 mA (analog, 4‑wire) and RS485 (digital, 4‑wire)
• Process temperature: -30 °C ... +70 °C
• Ambient operating temperature: -25 °C ... +60 °C
• Storage/transport temperature: -40 °C ... +85 °C
• Ambient humidity allowable: 0 ... 95 % (non‑condensing)
• Measurement chamber supplied: MK‑Basic‑PN16 with quick coupling NW 7.2
• Connection cable supplied: 5 m
• Inputs: 2 integrated sensor inputs; 2 optional additional inputs (digital/analog)
• Data logger: optional (memory stated 2 GB on product page; some sections indicate 4 GB depending on version)