Specifications

176 RK0YG302 © Danfoss 05/2007
GD
Gas detector
Additional information!
Data sheet: RD7HA
The installation of data communications must comply with the require-
ments described in literature sheet no. RC8AC
Application
GD detects a wide range of commonly used refrigerants including
Ammonia, Carbon Dioxide, Halo-Carbons and Hydro-Carbons.
Advantages
•
Alarm levels can be set locally.
• GD can be connected directly to a Danfoss m2 monitoring unit.
No additional add on is required.
Technical data
Refrigerants:
Ammonia (R 717)
Type GDA
0-100 ppm
0-1000 ppm
0-10000 ppm
0-30000 ppm
Carbon Dioxide (R 744) Type GDC 0-10000 ppm
Halo-Carbon, HCFC (R 22, R 123) Type GDHC 0-1000 ppm
HFC (R404A, R410A, R134A, R407C, R507)
Type GDHF 0-1000 ppm
Hydro-carbon
Propane (R 290, R 600, R 600A, R 1270)
Type GDH 0-5000 ppm
Temperature range
Standard, LCD display, IP 65 and EExd –20°C/+50°C (–4°F/122°F)
Low temperature model –40°C/+50°C (–40°F/122°F)
Enclosure
Standard IP 30 (NEMA 1)
LCD display IP 30 (NEMA 1)
IP 65 IP 65 (NEMA 4)
EExd IP 65 (NEMA 4)
Low temp. IP 40 (NEMA 2)
Cable connection
1 gland for 6-13 mm cable (0.2”-0.5”)
1 Ø 20 mm (0.8”) hole with blanking plug
1 extra gland can be tted (only Standard, LCD display, IP 65 and EExd).
Weight
Standard 1015 grams (1.24 lb)
LCD display 1045 grams (2.30 lb)
IP 65 778 grams (1.72 lb)
EExd 4200 grams (9.26 lb)
Low temp. 520 grams (1.15 lb)
Approvals
CE
EN55011: 1998
EN61326: 1996
Following the provisions of 89/336/EEC, EMC directives and,
Cenelec
EN61010-2 : 2001
Following the provisions of 73/23/EEC, Low Voltage directive
(LVD)
ATEX for EExd-model: Directive 94/9/EC Group 2, Category2, G and D, Zones 1 and 2.
Supply voltage
12-24 V a.c
12-30 V d.c
Max load : 4 W
Analog output
4-20 mA Max. 400Ω
0-10 V Min. 10 kΩ
0-5 V Min. 10 kΩ
RS 485 Communication To Danfoss m2 monitoring unit
Digital output – volt free contacts Load: 1 A, 24 V a.c/d.c
GD