GREISINGER GTF 101-Ex Series User manual

Z31.0.XY.6C-09
GREISINGER electronic GmbH
D - 93128 Regenstauf, Hans-Sachs-Straße 26
Operating Manual
Temperature probe for potentially explosive atmospheres
GTF 101-Ex...
and
GTF 102-Ex...
from –200°C to 900°C

Z31.0.XY.6C-09 Operating manual GTF 102-Ex... und GTF 101-Ex... page 2
INDEX
No Chapter Page
1 Introduction 3
1.1 General 3
1.2 Which temperature-probes, transmitters, displays, etc. do I need ? 3
2 Safety instructions 5
2.1 General 5
2.2 Limited ambient conditions 5
2.3 Connection values and ambient conditions 6
3 Installation hints 6
3.1 Layout for Pt 100 and Pt 1000 in 2-, 3-, 4-wire technology 6
3.2 Thermocouples 7
3.3 Cable gland 7
4 Sensor-types and areas of application 7
5 Specification 8
6 Ordering information 9
6.1 GTF 102-Ex-... 9
6.2 GTF 101-Ex-... 10
7 Appendix 1: Declaration of conformity
8 Appendix 2: EC-type-examination certificate

Z31.0.XY.6C-09 Operating manual GTF 102-Ex... und GTF 101-Ex... page 3
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1. Introduction
1.1 General
The temperature-probes GTF 101-Ex and GTF 102-Ex are mounting probes for usage in
potentially explosive atmospheres. As the probes are very small-sized they can be used in
places difficult to access. The probes are ready to use. They only have to be connected to the
end device, as their cables are already connected and converted.
The probe-inserts of the GTF 101-Ex and GTF 102-Ex are attached and sealed, therefore they
can not be exchanged. The probe-inserts are available for two different sensor-groups;
resistance thermometer: Pt 100, Pt 1000 or thermocouple: type K, type N (standard).
Only mineral insulated sensor elements are used.
The GTF 102-Ex can be used up to zone 0 or zone 20 for medium-temperatures from –200°C to
+ 900°C. If the medium-temperature exceeds 100°C all temperature probes must have a neck
tube length of at least 50mm (standard). It is also possible to produce longer neck tubes.
The GTF 101-Ex can be used for medium-temperatures from –200°C to 900°C, but is not
permitted for zone 0 or zone 20. If the medium-temperature exceeds 100°C an adequate
distance from the screw joint to the head must be adhered as well (see GTF 102).
The permissible ambient temperature in the area of the connection head depends on the
temperature class, the potential explosive zone, the medium-temperature, and the cable gland.
For the standard cable gland the permissible maximal ambient temperature ranges from –20°C
to + 60°C ( see chap. 2.3) and for the modification „ higher ambient temperature „ (GTF 10.-Ex-
...H...-types) from –20°C to +80°C.
The used material of the probes which encounter the medium are made of stainless steel
(e.g. 1.4404, 1.4435, 1.4571 or Inconel 600 ). This ensures high stability against many chemical
compounds.
For applications with head-transducer or clamp-blocks we suggest the series GTF 103-Ex.
1.2 Which temperature-probe, transmitter, display etc. do I need?
You can easy find out the needed temperature-probe or transducer for your special application
from the table given below.
Zone 0 or 20
A GTF 102-Ex can be used, if the temperature has to be detected in Ex-zone 0 or 20. Only
ATEX-certified display- and control-devices, complying with the demands of the certain zone
are allowed to be used.

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Zone 1, 2 or 21, 22
A GTF 101-Ex or GTF 102-Ex complying with the protection class EEx em II T6 or EEx ia IIC T6
can be used, if the temperature has to be detected in EX-zone 1, 2 or 21, 22. In case the
controlling- or displaying device is also in the zone 1, 2 or 21, 22 only ATEX certified devices
complying with the demands of the certain zone are allowed to be used.
In case the controlling- or displaying device is beyond the explosion hazardous area, this device
does not need an Ex-certification if a temperature-probe GTF 101-Ex or GTF 102-Ex complying
with the protection class increased safety (EEx em II T6) is used and the safety instructions given
in chapter 2 are fulfilled.
Table 1 : Overview of application and demands to a GTF 102-Ex... or a GTF 101-Ex and the display-/ control-
device in different Ex-zones in detail.
GTF 101-Ex and GTF 102-Ex type-code are shown in chapter “ Specification”
Ex-zone: sensor 0 , 20 0/1 , 20/21 1, 2, 21, 22 1, 2, 21, 22
Ex-zone: device 0, 20 1, 2 ,21, 22 1, 2, 21, 22 no Ex-environment
Applicable
GTF 101-Ex
GTF 102-Ex
T
yp
es
nonlicenced
(see GTF 103-Ex) GTF 102-Ex... GTF 101-Ex...
GTF 102-Ex...
GTF 101-Ex...
GTF 102-Ex...
ATEX-marking
of the sensor
II 1GD 80°C
EEx ia IIC
Ta= -20°C...+40°C
II 1/2 GD 80°C
EEx ia IIC T6
II 2 GD 80°C
EEx ia IIC T6 or
EEx em II T6
II 2 GD 80°C EEx em II T6
ATEX standards
to the device(s)
II 1 G resp.
II 1 D
II 1G; II (1)2G EEx ia IIC,
II 2G EEx ia IIC bzw.
II 1D; II (1)2D EEx ia IIC,
II 2D EEx ia IIC
II 2 G resp.
II 2 D without ATEX-admission

Z31.0.XY.6C-09 Operating manual GTF 102-Ex... und GTF 101-Ex... page 5
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2. Safety instructions
2.1 General
1. Only install the GTF 101-Ex and GTF 102-Ex according to the given manufacturer’s instructions
and observe general standards and precepts.
2. The temperature sensors with the type of protection “Increased Safety” (e), also as combination
with the type of protection “Encapsulation” (m) are allowed to be connected only to the resistance
sensors or thermocouples according to the relevant standard for this part. The nominal electrical
operating parameters may not exceed.
3. Every temperature sensor with the type of protection „Increased Safety“ (e), also as combination
with the type of protection “Encapsulation” (m), has to be used with a series fuse, which is
suitable for the possible short-circuit current of 1500A. The series fuse can be installed into the
associated supply device or into the evaluation device.
4. Only use cable with allowable diameter and associated sealing of the cable entry point.
The connection piece of the cable entry point must not be detached. Use blue dome nut of the
cable entry point for intrinsic safety circuits.
5. Arrange circuit points according to the given connection diagram. The anode (positive pole) of
thermocouples is marked with a red label.
6. The maximal ambient temperature which are specified in the EC-type-examination certificate do
not may be overranged in the entire area of the head. Influences of adjacent heat-sources are to
be considered.
7. The self heating of the device’s tube has to be considered for the application, if loading the
measure-circuitry with more than 40mW.
The summation of the medium-temperature and the temperature of the sensor-tube from
the device’s self heating must always be lower than the ignition temperature of the
medium.
8. The chemical resistance of the material has to be checked with the manufacturer, if using in
aggressive mediums.
9. The probe line of the temperature sensor is to be installed in such a way which ensure sufficient
protection against mechanical damage. The bending especially of the long sensor tube has to be
prevent. Where appropriate fasten elements are to be mounted in suitably distances.
2.2 Limited ambient conditions
2.2.2 GTF 101-Ex- or GTF 102-Ex-types
temperature class
T6 -20°C ≤Ta ≤+60°C
2.2.3 GTF 101-Ex-...H- or GTF 102-Ex-...H-types
temperature class
T6 -20°C ≤Ta ≤+80°C
The GTF 101-Ex-...H- and GTF 102-Ex...H-types only are allowed to use in the protection class
„Intrinsic safety“ (i).

Z31.0.XY.6C-09 Operating manual GTF 102-Ex... und GTF 101-Ex... page 6
2.3 Connection values and ambient conditions
The measure-circuit should not be loaded with more than 40mW. When not exceeding
this value, the temperature at the sensor-tube will raise 4°C maximum compared to
ambient temperature. The temperature probe GTF 101-Ex or GTF 102-Ex may only be
used, if this increase of temperature compared to the medium-temperature within the
container is allowable.
The self heating of the device has to be considered for the application, if loading the
measure-circuit in fault with more than 40mW. The summation of the medium-
temperature and the temperature of the sensor-tube from the device’s self heating up
must always, even in fault, be lower than the ignition temperature of the medium
Figure 1: Temperature rise vs. load of the measure circuit
The given requirements in safety instructions for the supply-unit and the display-/control-
device must be objected.
3. Installation hints
3.1. Layout for Pt 100 and Pt 1000 in 2-, 3- , 4- wire technology
Figure 2: Layout
1= 1= 1=
3= 3=
4L 3L 2L
2= 2= 2=
4=
Temperature rise of GTF 10x-Ex
0
50
100
150
0 500 1000 1500 2000 2500
Load (mW)
Temperature rise (°C)

Z31.0.XY.6C-09 Operating manual GTF 102-Ex... und GTF 101-Ex... page 7
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3.2. Thermocouples type K and type N
The connection for the anode (positive pole ) is marked with a red label
3.3. Cable gland
Factory-made the connection thread of the cable gland is clotted with the
sensor head. Violent dismounting or detaching is not permissible (Torque > 3,75 Nm).
The dome nut of the cable gland has to be tested for leak, regularly and
has to be tightened if necessary. Reconstruction or modification at the cable
gland or the sensor are not allowed. Only original parts are allowed to be used if repair
work is necessary.
Only round cables with the following external diameters (ED) are allowed to use:
Standard: ED: 4-7mm
Higher ambient temperature: ED: 3-6,5mm
4. Probe-types and areas of application
The GTF 101-Ex and GTF 102-Ex are available in 16 different designs each.
All further specifications adapt to the sensor, the temperature-range, the ambient
temperature, and the needed type of protection.
Standard-probes are manufactured with a probe-length of 100mm, a probe-diameter
of 6mm, a screw thread G=1/2” (GTF 102-Ex) and for media-temperatures > 100°C
with a neck tube-length of 50mm.
For extra charge we will assemble probes according to Your instructions ( as far as
possible).

Z31.0.XY.6C-09 Operating manual GTF 102-Ex... und GTF 101-Ex... page 8
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5. Specification
Measuring range: Without neck tube (GTF 101-Ex , GTF 102-Ex)
Pt100 / Pt1000 -200°C...+ 100°C
Thermocouples type K, type N -200°C...+ 100°C
With neck tube (GTF 101-Ex , GTF 102-Ex
Pt100 / Pt 1000 -200°C...+ 600°C
Thermocouples type K, type N -200°C...+ 900°C
Sensor- elements: All sensor-elements are mineral insulated
Pt 100 , Pt 1000 class B 2-, 3-, 4-wire-connection
thermocouples type K, type N
Probe-tubes: Material of screw thread and probe-tubes: stainless steel
( 1.4404, 1.4435, 1.4571, Inconel 600 et al.)
Standard –GTF 102-Ex
Without neck tube
screw thread G = ½“, FL = 100mm, D = 6mm, WS ≥1,0mm
With neck tube
screw thread G = ½“, FL = 100mm, D = 6mm, WS ≥1,0mm
HL = 50mm, D = 8mm
Standard –GTF 101-Ex
Without neck tube
clamping ring screwing G = ½“, FL = 100mm, D = 6mm, WS ≥1,0mm
With neck tube
clamping ring screwing G = ½“, FL = 100mm, D = 6mm, WS ≥
1,0mm; HL = 50mm, D = 8mm
Cable gland:
Standard-ambient-temperature Material: polyamide, sealing CR/NBR
max.: -20°C...+60°C IP 66
Clamping range: 4-7mm
higher ambient temperature Material: polyamide, sealing and O-ring NBR
max.: -20°C...+80°C IP 68 –10bar
Clamping range: Ø 3-6,5mm
For individual types please make exact specification of:
probe-length (FL), probe-diameter (D), neck-tube-length (HL), ambient temperature,
measuring range, sensor-element , sensor-accuracy, and type of protection
Available components (possibly not useable for all protection-types and zones )
Probe-tube diameter: 3, 4, 5, 6, 8 mm
notice: diameter 3mm: minimum-length 60mm, the diameter is reduced : 6mm to 3mm
Kind of screw thread: G, R, NPT, M – external screw thread
Size of screw thread: 1/8“, ¼“, 3/8“, ½“, ¾“, 8x1 mm, 10x1 mm, 14x1 mm
Sensor-elements: Pt 100, Pt 1000, TC-type K, TC-type N

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6. Ordering information
6.1 GTF 102-Ex....
GTF 102-Ex-
Ordering example: GTF 102-Ex; Pt 100, medium-temperature > 100°C; ambient temperature: 60°C,
kind of screw thread: G-screw thread, size of screw thread: 1/2", neck tube length 50mm, probe diameter: 6mm,
probe length 200mm, cable length 3m, protection type "i"; Ex-zone 1
GTF 102-Ex- P M A 1 4 050 6 0200 3 i 01
Sensor-element:
P: Pt 100
S: Pt 1000
T: Thermocouple type K
U: Thermocouple type N
Neck tube:
K: without neck tube ( T< =100°C)
M: with neck tube ( T > 100°C)
Probe diameter :
x: 3,4,5,6 or 8mm
Hint:
- For zone 0/1, 20/21 only 6mm or 8mm available
- For D= 3mm: (Pt 100 or Pt 1000 only)
·minimum length is 60mm
· probe diameter is reduced; from D =6mm to D = 3mm
Probe length :
xxxx: length in mm
Protection type:
e: increased safety (hier em); not permitted in zone 0/1 or zone 20/21
i: intrinsic safety
Hint:
protection class "em" : devices beyond the explosive hazardous zone need
no ATEX certification (mind safety instructions !)
Potentially explosive atmospheres:
Gases:
00: zone 0/1 (probe-tube in zone 0, head in zone 1)
01: zone 1
02: zone 2
Dusts:
20: zone 20/21 (probe-tube in zone 20, head in zone 21)
21: zone 21
22: zone 22
Hint:
The probe can not be used completely in zone 0 or zone 20.
Ambient temperature :
A: Standard
-20°C....+60°C
H: higher ambient temperature
-20°C...+80°C
only for protection type "i" available
Kind of screw thread:
1: G-screw thread (zylindric)
2: M-screw thread (metric)
other screw thread on request
Size of screw thread:
1: 1/8" Hint:
2: 1/4" For zone 0/1 or zone 20/21
3: 3/8" for G-screw thread only G 3/8" , G 1/2" or G 3/4"
4: 1/2" available.
5: 3/4"
6: 8x1
7: 10x1 for M-screw thread
8: 14x1
Neck tube length:
xxx: length in mm
(e.g. 050 = 50mm)
Cable length (4-wire):
x: length in m (e.g. 1 = 1m)
HL
FL
GTF 102-Ex-.M.
FL
GTF 102-Ex-.K.

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6.2 GTF 101-Ex
GTF 101-Ex-
Ordering-example: GTF 101-Ex , Pt 100, medium-temperature > 100°C, ambient temperature: 60°C,
neck tube length: 50mm, probe-diameter: 6mm, probe.length: 200mm, cable-length: 5m
protection type: "i"; Ex-zone: 21
GTF 101-Ex- PMA050602005 i 21
Sensor-element:
P: Pt 100
S: Pt 1000
T: Thermocouple type K
U: Thermocouple type N
Neck tube:
K: without neck tube ( T< =100°C)
M: with neck tube ( T > 100°C)
Probe-tube diameter :
x: 3,4,5,6 or 8mm
Hint:
- for D= 3mm: minimum length is 60mm;
· the probe diameter is reduced from D=6mm to D=3mm,
· only for Pt 100 or Pt 1000
Probe-length :
xxxx: length in mm (e.g. 0100 = 100mm)
Protection type:
e: increased safety (here: em)
i: intrinsic safety
Hint:
protection class "em" : devices beyond the explosive hazardous zone
need no ATEX certification (mind safety instructions !)
Potentially explosive atmospheres:
Gases:
01: zone 1
02: zone 2
Dusts:
21: zone 21
22: zone 22
Ambient temperature :
A: Standard
-20°C....+60°C
H: higher ambient temperature
-20°C...+80°C
only in protection intrinsic safety "i" available
Neck tube length:
xxx: length in mm
(e.g. 050 = 50mm)
Cabel-length (4-wire):
x: length in m (e.g. 1 = 1m)
HL
FL
GTF 101-Ex-.M.
GTF 101-Ex-.K.
FL