GfG ZD 21 Oxygen Transmitter Operations Manual

This is a sensor manual, which includes information on the use and installation of the sensor

Brand: GFG
Category: Other Electronics
Document type: User Manual
Language: English
Pages: 16
File format: PDF
File size: 1 MB
Published: 18 October, 2023
Updated: 18 October, 2023
Model: ZD21
MD5 checksum: F61C96C04D63830D267920F0B61D5737
PDF: GfG ZD 21 Oxygen Transmitter Operations Manual PDF

About this manual

The GfG ZD 21 is an intelligent fixed gas monitoring transmitter designed for use with a GMA controller. It features an amperometric oxygen sensor based on a zirconia electrochemical pump cell, offering easy calibration, temperature compensation, and long sensor life. The device converts gas concentration into an electrical signal (0.2..1 mA or 4..20 mA) transmitted via a shielded cable.

What's inside

For your safety
General description
Detection principle
Operational Notes
Mounting Position
Mounting
Installation of Electrical Connections
Putting into Operation
Service
Trouble Shooting

Specifications

Supply Voltage	10...32 V DC
Output Signal	0.2 .. 1 mA or 4.. 20 mA
Protection Class	IP 54
Cable Type	Shielded 3-core cable

Frequently asked questions

How long does the transmitter need to warm up before checking sensitivity?

Allow approximately 15 to 30 minutes to warm up the transmitter before checking the sensitivity.

When should the protective cap on the sensor be removed?

The protective cap must be removed immediately prior to applying power to the transmitter.

Is the ZD 21 certified for use in hazardous areas?

No, the ZD 21 is not certified for use in hazardous areas.

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