Analog Mass Flow Controller

SideTrak^® 840

Dependable analog mass flow control for over 30 years
Precision control with low pressure drop
Proven to control toxics, corrosives and combustibles with easy, cleanable sensor tube
Count on durability with rugged construction

Get accurate, reliable mass flow control with SideTrak® 840 analog mass flow meter and controller. This traditional mass flow meter:

Features precise primary standard calibration to measure any gas with low pressure drop
Accurately measures oxygen, mixtures, toxics, corrosives, combustibles
Is widely used in process control, leak detection and gas distribution

The 840 flow meter has proven to be one of the world’s most dependable flow controllers for over 30 years.

Ideal for general industry applications
Large straight capillary sensor tube is cleanable with needle and provides low pressure drop
Mass flow rates up to 500 slpm (nlpm), higher upon request
Pressure drop 30 psi (2.1 bar), pressure drop of 4.5 psid (310 mBard) available with MicroTrak 101
Primary Standard Calibration & NIST traceability

Available in wide variety of enclosures, process connections, input/output options and control electronics
Proprietary frictionless-hovering direct-acting control/shut-off valve
316 stainless steel construction

Response time: 300 millisecond time constant; 2 seconds (typical) to within ± 2% of final value over 20 to 100% of Full Scale
15 VDC power supply
Seals: Viton®, Neoprene®, Kalrez®, Teflon®
316 stainless-steel construction
Analog signals included: 4-20 mA; 0-5 VDC
CE approved

	File Title	Version	Release Date
Datasheets(2)
	SideTrak 830/840 Application Datasheet	V6	06/17/2020
	SideTrak 830/840 Technical Datasheet	I	02/04/2020
Manuals(1)
	File Title	Version	Release Date
	SideTrak 830/840 Instruction Manual	K	11/17/2017
Guides(1)
	File Title	Version	Release Date
	SideTrak 830/840 Quick Installation Guide	D	04/02/2015
Certificates(10)
	File Title	Version	Release Date
	800 Series CE Declaration of Conformity	1.0	03/12/2021
	RoHS 3, REACH, and WEEE Compliance	2.0	09/20/2021
	China Pattern Approval Certificate	01/28/2014
	ARRA Certificate of Conformity	11/3/17	11/03/2017
	CRN Approval	2.0	09/20/2019
	CRN Approval Quebec	2.0	09/20/2019
	CRN Approval British Columbia	2.0	09/20/2019
	CRN Approval Ontario	2.0	09/20/2019
	CRN Approval Saskatchewan	2.0	09/19/2019
	CRN Approval Manitoba	2.0	09/20/2019
FAQ - Frequently Asked Questions(1)
	File Title	Version	Release Date
	Solutions For Valve Oscillation	JRO 3-2014	04/24/2014
Additional Documentation(6)
	File Title	Version	Release Date
	Full Line Catalog - German Version	V1	08/07/2017
	Sierra Clean Energy Guide	V1	01/28/2011
	Full Line Product Offering	V4	08/03/2023
	Service Brochure	2.0	04/06/2015
	Terms and Conditions	1.0	11/01/2010
	Warranty Statement	2.0	04/01/2015