BECKHOFF KM3701 Differential Pressure Input Terminal

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Manufacturer: BECKHOFF
Product No.: KM3701
Country of origin:آلمان
Product Type: Bus Terminal module
Payment: T/T, Western Union
Weight: 3000g
Shipping port: Xiamen
Warranty: 12 months

The KM3701 is a precision 1-channel analog input terminal designed for differential pressure measurement. Engineered by BECKHOFF, this module provides a measuring range of -100 to +100 hPa (-100 to +100 mbar), specifically tailored for non-aggressive gas applications. With a high resolution of 0.1 hPa per digit and a fast typical measuring speed of 5 ms, the KM3701 is an essential component for monitoring airflow and pressure differentials in industrial and HVAC systems.

Features

1-channel differential pressure measurement
Measuring range: -100 to +100 hPa (-100 to +100 mbar)
High resolution: 0.1 hPa per digit
Fast measuring speed: 5 ms typical
Suitable for non-aggressive gases
Overload protection: 500 hPa differential / 5000 hPa to ambient
Compact Bus Terminal module design

Applications

HVAC and building automation systems
Filter monitoring and differential pressure detection
Industrial gas flow analysis
Cleanroom environment pressure control

Technical Specifications

Category	Specification
Manufacturer	BECKHOFF
Model	KM3701
Measuring Range	-100 to +100 hPa
Max. Overload	500 hPa differential, 5000 hPa to ambient
Resolution	0.1 hPa per digit
Measuring Error	3 % (relative to full scale)
Measuring Speed	5 ms typical
Current Consumption (K-bus)	typ. 15 mA
Operating Temperature	0 to +55 degC
Storage Temperature	-25 to +85 degC
Protection Rating	IP20

Installation Guidelines

Ensure the medium (gas) being measured is non-aggressive to prevent damage to the internal sensor.
Mount the terminal on a standard 35 mm DIN rail in an orientation that minimizes external mechanical stress.
Connect pressure ports using tubing compatible with the terminal’s specifications to ensure a hermetic seal.
Operate within the specified 0 to +55 degC ambient temperature range to maintain measurement precision.
Follow EMC standards EN 61000-6-2/EN 61000-6-4 by ensuring correct installation within an electrical enclosure and proper rail grounding.

Compliance and Certifications

Key Features:

What is the primary function of the KM3701?

It is designed for the 1-channel differential pressure measurement of non-aggressive gases.

What is the resolution of the KM3701?

The resolution is 0.1 hPa per digit within the measuring range.

Can this terminal withstand high pressure?

It can withstand a differential overload of 500 hPa and up to 5000 hPa (5 bar) against ambient pressure.

Does this terminal require power contacts?

No, the KM3701 does not utilize power contacts; it is powered via the K-bus.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	سفید
Country of origin	آلمان

BECKHOFF KM3701 Differential Pressure Input Terminal