Gefran AR2 Data Sheet
AR2
Resistance thermometer with interchangeable insert for measure in
industrial processes and furnaces
Main features
• Amplified output signal
• Temperature limits: -80 ... +600°C
• Tolerance: UNI 7937, IEC 751 standards:
± 0.15° C a 0° C for class A (1/2 DIN)
± 0.30° C a 0° C for class B (1 DIN)
± 0.10° C a 0° C for class 1/3 DIN
• Insulation: > 100 MOhm for voltage values from 10 to
100 Vcc
• PT100 wire-wound resistance thermometer
• Mineral insulated interchangeable insert
• Application versatility
MODELS
without fitting
AR2 A
AR2 B
with adjustable flange
30
Li
Li
AR2 C
with welded fitting
A
F
AR2 D
With welded fitting
under the head
A
Le
Li
F
Li
MGO sprung insert
Ø
MGO sprung insert
Ø Ø
MGO sprung insert
MGO sprung insert
Ø
ORDER CODE
2
R
CODE
Model
Without fitting
With adjustable flange A B
With welded fitting C
With welded fitting
under the head
Element + Nr. of Wires
Single 2 wires
Single 3 wires
Precision Class
PT100 class A (1/2 DIN)
PT100 class B (1 DIN)
PT100 class (1/3 DIN) C
Connection Head
DIN B
DIN BUS
EEX d IIC 2GD F
CEAA
DIN BUZ - H
Sheath Material
AISI 304
AISI 310
AISI 316
INCONEL 600
Sheath Diameter (mm)
10
12
14
16 O
17.2 (3/8”)
21.3 (1/2”) Q
26.7 (3/4”) T
Connection Thread *
3/8” GAS “A”= 15mm
1/2” GAS “A”= 15mm
3/4” GAS “A”= 18mm
1” GAS “A”= 18mm
3/8” NPT
1/2” NPT
3/4” NPT
1” NPT
(*) To be shown for C model only
Connection Material / flange
300 Series Stainless Steel
Aluminium
Carbon Steel 5 **
(*) For fittings only
(**) For flanges only
A
D
1
2
A
B
C
E
H
I
A
B
C
F
K
L
M
P
C
D
E
F
I
J
K
L
2 *
4 **
0
X
C
AX0 0 0
Certificates
Conformity ReportA
LENGTHS AND
ACCESSORIES
Type of Transmitter
A
Li = Immersion Length (mm)
Standard length from 100 to
2000mm with 50mm step
Le = Extension Length (mm) *
Standard length from 35 to
200mm with 10mm step
(*) Available for AR2C only
Temperature range in which the
calibration has to be made
min T max T
°C °C
4mA 20mA
4 ÷ 20mA
F
E
I
H
Ø69
Ø34
4
4
14
Ø75
Ø45
5
10
10
Mod. C - D Availability of Mounts /Sheathing Diameter
MOUNT (F) A (mm) MOUNT (F) ø10 ø12 ø14 ø16 ø17.2 ø21.3 ø26.7
Sensors amplifiers are manufactured in compliance with:
- EMC 2014/30/EU
compatibility directive
- RoHS 2011/65/EU directive
G 3/8
G 1/2
G 3/4
G 1
3/8 NPT
1/2 NPT
3/4 NPT
1 NPT
15
15
18
20
16
20
20
25
G 3/8
G 1/2
G 3/4
G 1
3/8 NPT
1/2 NPT
3/4 NPT
1 NPT
x x - - - - -
x x x x - - -
x x x x x x -
x x x x x x x
x x - - - - -
x x x x - - -
x x x x x x -
x x x x x x x
GEFRAN spa reserves the right to make any kind of design or functional modification at any moment without prior notice
DTS_AR2_04-2016_ENG
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