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Dräger REGARD 3920 Controller

Dräger REGARD 3920

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Dräger REGARD 3920

The Dräger REGARD 3920 is a standalone, self contained control system for the detection of Toxic, Oxygen and Ex hazards. The control system is fully configurable between 1 and 16 channels, depending upon the type and quantity of input/output boards installed.

Dräger REGARD 3920

Based upon the Dräger REGARD 3900 the 3920 is configured via on board pushbuttons and is capable of housing both 4-20 mA input boards and relay output boards in a robust IP65 enclosure. The Dräger REGARD 3920 is a modular system suitable for the most stringent of budgets.

Analog input board

Each analog input board caters for one to four, 2 or 3 wire, 4-20 mA transmitters. Each transmitter connects to dedicated field terminals. Up to a total of four analogue input boards can be installed in to a single Dräger REGARD 3920, thus giving a maximum input count of sixteen transmitters. Each individual input board is populated with three relays. These relays offer common Fault, Alarm 1 and Alarm 2 outputs. The two alarm levels are fully configurable and can be set as rising or falling, latching or non-latching. To differentiate between each input board a simple mechanical link is required.

Relay output board

Each relay output board is populated with eight additional SPCO relays. Relay 1 on each relay board is a dedicated Fault relay and cannot be reconfigured. The remaining seven relays can be configured as Single, Common, Voting, Inhibit or Nonoperational. An additional Alarm 3 level is offered by the relay board along with a second Fault threshold. All configurable relays can be Rising/Falling, Latching/Non Latching and Normally Energised/Energised on alarm. Alarm relays are acknowledged via the push button located on the front panel of the instrument housing. A maximum of two relay boards can be installed in a single Dräger REGARD 3920 control system.

Repeat output board

Each 4-20 mA output board repeats the signal of up to eight inputs. This allows indication or recording of gas levels by other units. A maximum of two analog output boards can be installed in a single Dräger REGARD 3920 control system.

System configuration

The Dräger REGARD 3920 is fully configurable via pushbuttons located on the front panel. The configuration menu allows quick and easy set-up. All calibration routines, zero and span are performed using the configuration menu.

360 Product View

Draeger REGARD 3900 360

Downloads

Regard 3920 Product Information, en-us
Regard 3920 Product Information, en-us

The Dräger REGARD® 3920 is a standalone, self contained control system for the detection of Toxic, Oxygen and Ex hazards. The control system is fully configurable between 1 and 16 channels, depending upon the type and quantity of input/output boards installed.

Download

Gas List Brochure, en
Gas List Brochure, en

List of detectable gases and vapours.

Download

Handbook: An Introduction to Gas-Detection Technology (1st Edition)
Handbook: An Introduction to Gas-Detection Technology (1st Edition)

Flammable and toxic gases and vapours occur in many areas. It is important to recognise the danger they pose – and that is the purpose of gas-detection and warning devices.

Download

CD Regard 3900 Modbus TCPIP Gateway
CD Regard 3900 PB Gateway
DNV GL REGARD 3910 April 2021
DNV GL SE MEDD00000TF Rev.5 valid until 2024-10-23, en
DNV UK MERD00000TF Rev.1 valid until 2029-02-05, en
Explosion Protection Brochure, en
Gas Dispersion Brochure, en
IFU Regard 3900 - 4208800 de-me
IFU Regard 3900 - Configuration Software 4209486 en-us
IFU Regard 3900 - Output Module 4 - 20mA 4208839 en
IIN Regard 3900 - Modb. TCP/IP Gateway 9033442 ME
IIN Regard 3900 - Modbus Gateway V2 9033440 ME
IIN Regard 3900 - Profibus Gateway 9033441 ME
IIN REGARD 39xx - PROFINET Gateway - 9300427 de-me
MED-B REGARD 3910 DNV
More than the sum Brochure, en
REGARD 3900 Software Version 8
REGARD 39x0 DoC 4209434_08
REGARD 39x0 EU-BMP TÜV 16 ATEX 8400 X EN 2019-08-12
Signal Transmission Handbook, en
SIL Brochure, en
Software Config 3900 v7
TRA-017760 Drager TRL06ATEX21099X V4

Technical Data

Key Facts

Type
wall-mounted or rail-mounted
Channels
16
mA
mV
✓ (optional)
Digital communication
✓ (outputsignal)
SIL
✓ SIL 1/2
Surface Mount
DIN Rail Mount
Dockingstation

Technical Data

Power Supply
230 V AC / 24 V DC
Temperature (operation)
32°F - 131°F
Humidity
0 to 100 % r.h., non-condensing
Pressure (hPa)
700 - 1300
Dimensions (H × W × D)
1.36x1x0.57 ft
Weight
11.02 lb
Housing Material
ABS OV
Degree of protection (IP class)
IP65

Approvals

ATEX
IECEx
UL
CSA
CE marking
GOST (EAC)
Performance approval
Shipping approval
FM

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Get in touch with Dräger

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Draeger, Inc. – Safety

7256​ ​S.​ ​Sam​ ​Houston​ ​W​ ​Pkwy.,​ ​Suite​ ​100
Houston,​ ​TX​ ​77085

1-800-437-2437