Dwyer 616KD Series 4-20mA Differential Pressure Transmitter

Product Introduction

The Dwyer 616KD Series 4-20mA Differential Pressure Transmitter is a high-performance instrument designed for precise measurement of differential pressure in air, non-combustible gases, and compatible gases. Equipped with One-Touch® one-button digital calibration technology, it simplifies installation and maintenance, eliminating the need for traditional potentiometer adjustments or additional calibration tools. With multiple accuracy grades (±0.25% FS, ±1% FS, ±2% FS) and a wide range of pressure options, it caters to diverse industrial applications, from air handling unit filter monitoring to pharmaceutical equipment pressure control.

Features

One-Touch Calibration: Zero and span calibration at the push of a button, saving installation time and reducing maintenance efforts. No pressure source or extra tools are required for calibration, streamlining on-site setup.​

Multiple Accuracy Grades: Available in 616KD-A (±0.25% FS), 616KD-B (±1% FS), and 616KD (±2% FS) to meet varying precision requirements, ensuring suitability for both critical and standard applications.​

Stable Performance: Boasts a stability of ±1% FS/year, maintaining consistent measurement accuracy over extended periods.​

Flexible Power and Output: Supports 4-20mA output with 10-35VDC (2-wire) or 12-26VAC (4-wire) power supply; also offers field-selectable voltage outputs (0-10V, 0-5V, 2-10V, 1-5V) for compatibility with diverse control systems.​

Compact and Cost-Effective: Ideal for OEM applications due to its compact design and cost efficiency, without compromising on performance.​

Specifications:​

Model: Dwyer 616KD Series​

Product Name: 616KD Differential Pressure Transmitter​

Medium: Air, non-combustible gases, compatible gases​

Accuracy:​

616KD-A: ±0.25% FS​

616KD-B: ±1% FS​

616KD: ±2% FS​

Stability: ±1% FS/year​

Operating Temperature Range: -17.8-60℃​

Storage Temperature Range: -66.7-50℃​

Pressure Range:​

2 psig (for ranges 5in w.c. or lower)​

5 psig (for ranges 10-40in w.c.)​

Output Signal: 4-20mA, or field-selectable 0-10V, 0-5V, 2-10V, 1-5V​

Power Supply:​

4-20mA output: 10-35VDC (2-wire) or 12-26VAC (4-wire)​

5V output: 10-35VDC (3-wire) or 12-26VAC (4-wire)​

10V output: 13-35VDC (3-wire) or 12-26VAC (4-wire)​

Loop Resistance:​

4-20mA output (DC): Max 0-1250Ω, R max=50(VpsDC-10)Ω​

4-20mA output (AC): Max 0-1200Ω, R max=50(1.4VpsAC-12)Ω​

Voltage output: Min 5KΩ​

Current Consumption: 24mA max​

Warm-Up Time: 20 seconds​

Electrical Connection: Screw terminal​

Process Connection: In-line, compatible with 1/8" and 3/16" (3mm and 5mm) ID rubber or plastic pipes​

Enclosure Protection: NEMA 1 (IP20)​

Mounting Orientation: Perpendicular to the pressure connection point​

Applications:​

Air handling unit filter monitoring​

Duct pressure measurement in HVAC systems​

VAV (variable air volume) system control​

Pharmaceutical equipment and textile machinery pressure monitoring​

Industrial process control involving non-combustible gases​