Danfoss DGS-SC HFC, DGS-PE, DGS-IR Data sheet

Data Sheet

Gas detecting sensor
Type DGS

Refrigerant gas detection for safeguarding commercial buildings.

DGS sensors can be used in stand-alone or
integrated systems, where continuous real­time, automatic monitoring with Danfoss
ADAP-KOOL® Refrigeration Control &
Monitoring System and/or Building
Management Systems is applied.

DGS supports our customers in complying with
environmental F-Gas Regulations and Health &
Safety requirements on new or existing systems
in:

• supermarkets

• process refrigeration plants

• refrigerated storage and warehousing

• special application areas/zones

Typical refrigerant gas applications include:

• halocarbons: HFCs, HCFCs, CFCs

• carbon dioxide (CO₂/R744)

• hydrocarbons (e.g. R290)

• other special application gases to customer
request

Sensing technology varies to make the best
detection for a given gas, in terms of
performance and cost. DGS-IR is based on infra­red sensor technology, DGS-SC is based on
semi-conductor and DGS-PE is based on
pellistor.

AI227786437234en-000501

Power supply

24 V DC ± 20 % ; reverse polarity protected
24 V AC - 10 % / + 15 %

Power Consumption (24 V DC)

Max. 250 mA (5 VA)

Digital input

Alarm acknowledge and test alarm: Potential-free contact
Alarm relay /fault relay: 40 V AC/DC, 0.5 A, change-over contact (SPDT)
Critical relay: normally closed (SIL II compliant), warning relay: normally open

Analogue output signal

Proportional, overload and short-circuit proof, load ≤ 500 Ohm
Measuring range: 0 – 10 V / 2 – 10 V / 0 – 20 mA / 4 – 20 mA

MODBUS Physical

5 V DC, 250 mA max. overload, short-circuit and reverse-polarity protected

Enclosure rate

IP 65

Humidity range

15 – 90 % RH not-condensing

Burning behaviour

UL 94 V2

Housing colour

Black

Dimensions (W x H x D in mm)

94 x 130 x 57

Installation

Wall mounting

Cable entry

2 x M12 / 3 x M20

Wire connection:

Power supply, MODBUS: Screw-type terminals 0.25 – 2.5 mm

2

Analogue output, Digital input: Screw-type terminals 0.25 – 1.3 mm

2

Sensor head: 3-pin plug connector

Sensor information

DGS-IR (CO2)

DGS-SC (HFC)

DGS-PE (Propane)

Temperature range

-35 – 50 °C

-35 – 60 °C

-30 – 60 °C

Response time T90

<120 sec.

<40 sec.

<10 sec.

Recovery time, T0

90 sec.

180 sec.

120 sec.

Maximum calibration interval

60 months

12 months

6 months

Measuring range

0 – 20000 ppm

0 – 2000 ppm

0 – 5000 ppm

Default alarm threshold

5000 ppm

500 ppm

800 ppm

Compliance

EN61010-1

No61010-1

B&L - Buzzer and Light (option by
product selection)

Light (LED): Red / yellow /green (alarm - fault - operation - service)
Buzzer: >85 dB (A) (0.1 distance ) 2300 Hz

Gas detecting sensor, type DGS

Product specication

Technical Data

Table 1: Technical data

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DGS Sensors

Spares and Accessories

Product Description

Code no.

Product Description

Code no.

DGS-SC HFC grp 1

(1)

080Z2803

Spare sensor HFC grp 1

(1)

Spare

080Z2815

DGS-SC HFC grp 2

(1)

080Z2804

Spare sensor HFC grp 2

(1)

Spare

080Z2816

DGS-SC HFC grp 3

(1)

080Z2805

Spare sensor HFC grp 3

(1)

Spare

080Z2817

DGS-PE propane

080Z2806

Spare sensor propane

Spare

080Z2818

DGS-IR CO

2

080Z2800

Spare sensor CO

2

Spare

080Z2813

DGS-IR CO2 5 m

080Z2801

Spare sensor CO2 - 5 m

Spare

080Z2814

DGS-IR 2

(1)

CO2 - 5 m

080Z2802

Hand-held Service Tool

Accessory

080Z2820

DGS-SC HFC grp 1

(1)

+ B&L

080Z2809

Strobe & Horn

Accessory

080Z2819

DGS-SC HFC grp 2

(1)

+ B&L

080Z2810

Splash guard

Accessory

148H6226

DGS-SC HFC grp 3

(1)

+ B&L

080Z2811

Duct set

Accessory

148H6236

DGS-PE propane + B&L

080Z2812

Calibration adaptor

Accessory

148H6232

DGS-IR CO2 + B&L

080Z2807

Remote kit

Accessory

148H6238

DGS-IR CO2 5 m + B&L

080Z2808

Power Supply AK-PS075

Accessory

080Z0053

File name

Document type

Document topic

Approval authority

Intertek 4000518

Electrical - Safety

Certicate

-

Intertek

RU Д-DK.АЖ22.В.09229_18

Electrical - Safety

Certicate

LVE

EAC

080R1223.AB

EU Declaration

EMCD/LVD

Danfoss

Gas detecting sensor, type DGS

Ordering

Table 2: Ordering

(1)

(1)

HFC grp 1: R1234ze, R454C, R1234yf, R452A, R454A, R455A, R454B, R513A

HFC grp 1: R1234ze, R454C, R1234yf, R452A, R454A, R455A, R454B, R513A
HFC grp 2: R407F, R416A, R417A, R407A, R422A, R427A, R449A, R437A, R134A, R438A, R422D

HFC grp 2: R407F, R416A, R417A, R407A, R422A, R427A, R449A, R437A, R134A, R438A, R422D
HFC grp 3: R448A, R125, R404A, R32, R507A, R434A, R410A, R452B, R407C, R143B

HFC grp 3: R448A, R125, R404A, R32, R507A, R434A, R410A, R452B, R407C, R143B

Bold = calibration gas



NOTE:

DGS is also available for alternative refrigerant gases on request. Please contact your local Danfoss Sales Oce for
details.

Certicates, declarations, and approvals

The list contains all certicates, declarations, and approvals for this product type. Individual code number may have
some or all of these approvals, and certain local approvals may not appear on the list.

Some approvals may change over time. You can check the most current status at danfoss.com or contact your local
Danfoss representative if you have any questions.

Table 3: Certicates, declarations, and approvals

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