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​

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.