Ametek JOFRA STS-102 A 030 User manual

JOFRA STS-102 A 030/035
User Manual

User Manual
JOFRA STS-102 A 030/035
Copyright 2010 AMETEK Denmark A/S
STS
-
102
A 03
0
STS-102 A 035

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List of contents
1.0 General information ............................................................... 3
3.0 Introduction............................................................................ 5
4.0 Functionality........................................................................... 6
4.1 Functional description...................................................................6
4.2 Connections..................................................................................6
4.3 Serial number................................................................................7
5.0 Operation................................................................................ 8
5.1 Operation area..............................................................................8
6.0 Maintenance ........................................................................... 9
7.0 Technical specifications...................................................... 10
8.0 Calibration of temperature sensors for sanitary process
connection............................................................................ 12
8.1 Accessories kit for dry calibration...............................................12
Flange............................................................................................. 13
8.2 The reference sensor..................................................................13
8.3 The calibration sequence............................................................15
8.4 Drilling instructions......................................................................16

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1.0 General information
This manual is only effective for the following product:
•JOFRA STS-102 A 030
•JOFRA STS-102 A 035
The product is manufactured by:
AMETEK Denmark A/S
Gydevang 32-34
3450 Allerød - Denmark
TEL: [phone]
FAX: [phone]
CE-label
Your new temperature sensor bears the CE label and
conforms to the RoHS Directive 2011/65/EU and
2015/863/EU*.
*from serial no. 686126-XX

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Read this manual carefully before using
the sensor!
In order to avoid any personal injuries and/or damage to
the sensor all safety instructions and warnings must be
o
bs
erved.
Disposal – WEEE Directive
These calibrators contain Electrical and Electronic circuits
and must be recycled or disposed of properly (in accordance
with the WEEE Directive 2012/19/EU).
Warning
•Do not use in hazardous area.
•Handle carefully.
•Never exceed temperature range
Caution…
•When measuring temperature in fluids (e.g. at re-
calibration) the enclosed protection tube must be used
(STS-102 A 030 only).
•The probe must always be protected against any
mechanical damage.
•The probe must never be exposed to mechanical shock
effects.
•Avoid thermal shock
•Any bending of the probe may cause permanent
damage
•
Never
use power or tools to place
the
p
ro
be.
2.0
Safety instructions

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3.0 Introduction
The JOFRA STS-102 A 030 and JOFRA STS-102 A 035 probes are
specially designed for fast and traceable calibration and temperature
measuring with your JOFRA equipment and is ready for use.
The JOFRA STS-102 A 030 probe is through its functional design
adapted for calibration of short temperature sensors in dry-block
calibrators.
The JOFRA STS-102 A 035 probe is through its functional design
adapted for calibration of short temperature sensors in both dry-block
and liquid bath calibrators.
Please read this manual carefully before use, to obtain maximum
value of your calibration system.
Warning
•Do not use in hazardous area.
•Handle carefully.
•Never exceed temperature range

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4.0 Functionality
4.1 Functional description
The sensor can be used for measuring temperature in the range:
STS-102 A 030: -50°C to 155°C (-58°F to 311°F).
STS-102 A 035: -50°C to 165°C (-58°F to 329°F).
The sensor is designed for measuring temperature in a dry-block
calibrator.
Caution…
When measuring temperature in fluids with STS-102 A 030
(e.g. at re-calibration) the enclosed protection tube must be
used.
The STS-102 probes may be supplied with certificates for a limited
temperature range.
4.2 Connections
The probe is delivered with a connecting cable and with the following
options:
REDEL
Model with Redel/Lemo connection: 1 metre cable
Model with Lemo connection: 1 metre cable
61
2
5
3
4
+
+
-
-
Memory

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4.3 Serial number
The serial number is placed on the connector as shown on the photo
below:

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5.0 Operation
5.1 Operation area
All the probes are intended for use in areas, which meet the following
operating conditions:
Probe cable : -50°C to 165°C (-58°F to 329°F)
Probe connector : -20°C to 70°C (-4°F to 158°F)
Storage temperature : -20°C to 70°C (-4°F to 158°F)
Humidity : 0% to 90% RH
Protection class : IP 50 (STS-102 A 030)
IP 68 (STS-102 A 035)
Warning
•Do not use in hazardous areas.

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6.0 Maintenance
The probe does not require specific maintenance before or after use.
The user may carry out the following procedure himself:
Cleaning sensor : Use alcohol or water and a soft cloth.
Caution…
•The probe must always be protected against any
mechanical damage.
•The probe must never be exposed to mechanical
shock effects.
•Avoid thermal shock
•Any bending of the probe may cause permanent
damage

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7.0 Technical specifications
STS-102 A 030:
Type : 4 wire Pt100.
α100 = 0.00385 1/ °C
Probe length : 30 mm / 1.2 inch.
Temperature range : -50°C to 155°C (-58°F to 311°F)
Hysteresis @0°C / 32°F : ±0.01°C / 0.018°F
Stability1) @0°C / 32°F : typ. 0.025°C / 0.045°F
Repeatability : 0.002°C / 0.0036°F
Diameter : OD4 mm
Immersion depth : Min. 30 mm / 1.2 inch.
Media compatibility : AISI 316 TI
Response time : τ0.9 = 16 sec. (measured in water)
Self-heating effect : 0.06°C / mW / 0.108°F / mW
Recommended
meas. current : 1 mA
Connections : 6 pol Redel or 4 pol Lemo plug
Insulation resistance : 20 Mohm @ 155°C
1) when exposed to 155°C (311°F) for 200 hours. Stability will depend
on actual use of the sensor.

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STS-102 A 035:
Type : 4 wire Pt100.
α100 = 0.00385 1/ °C
Probe length : 35 mm / 1.4 inch.
Temperature range : -50°C to 165°C (-58°F to 329°F)
Hysteresis @0°C / 32°F : ±0.01°C / 0.018°F
Stability1) @0°C / 32°F : typ. 0.025°C / 0.045°F
Repeatability : 0.002°C / 0.0036°F
Diameter : OD4 mm
Immersion depth : Min. 35 mm / 1.4 inch.
Media compatibility : AISI 316 TI
Response time : τ0.9 = 21 sec. (measured in water)
Self-heating effect : 0.08°C / mW / 0.144°F / mW
Recommended
meas. current : 1 mA
Connections : 6 pol Redel or 4 pol Lemo plug
Insulation resistance : 20 Mohm @ 165°C
1) when exposed to 165°C (329°F) for 200 hours. Stability will depend
on actual use of the sensor.
Accredited certificate:
If the STS-102 A reference probe is supplied with a certificate, the
calibration is carried out as recommended below according to the ITS
90 temperature scale. The probes are as standard calibrated in the
range:
STS-102 A 030: –45°C to 155°C (-49°F to 311°F).
STS-102 A 035: –45°C to 165°C (-49°F to 329°F).
It is recommended to calibrate in minimum 3 to 6 calibration points
(depending on the temperature range) above 0°C and in minimum 2
calibration points beneath 0°C.

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8.0 Calibration of temperature sensors for
sanitary process connection
8.1 Accessories kit for dry calibration
This kit can only be used with the ATC-156, A or B version (123859),
RTC-156/168 A, B or C version (127279). When used with RTC-168
A, B or C, adaptor 130196 is required.
Instructions for accessories kit for calibration of sanitary sensors:
The accessories kit, Part No. 123859 (ATC) / 127279 (RTC) contains
the following parts:
•1 pcs. carrying case for safe storing of accessories
•5 pcs. undrilled insertion tubes
•1 pcs. STS-102 A 030 reference probe with cable. Temperature
range –50 to 155 °C
•1 pcs. accredited certificate
•1 pcs. user manual
•1 pcs. protection tube
When calibrating sanitary sensors or sensors with short insertion
lengths in general various conditions have to be considered to obtain
an optimum and correct calibration. Therefore, AMETEK Denmark
A/S recommends that this instruction be followed.

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A sanitary sensor is normally similar to one of the two examples
shown below.
Fig. 1
Due to the very short insertion length, heat transfer through the
sensor tube and flange is of great importance to the calibration result.
Therefore, it is very important to achieve a good thermal contact to
the sensor as well as to the flange.
Make sure that the sensor fits exactly into the supplied insertion tube.
It is very important to have good mechanical and thereby also thermal
contact between the flange and the horizontal surface of the insertion
tube. In other words, there must be no air between the flange and the
insertion tube. (See also fig. 2).
8.2 The reference sensor
Included in the package is a STS-102 A 030 reference probe
especially developed for the purpose. It is important that this probe is
treated careful so it does not suffer any harm. When placing the
probe in the reference hole of the insert (Ø 4.2 mm) make sure that
there is no mechanical resistance.
Flange
insertion length

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Caution…
Never use excessive force or tools to place or remove the
sensor
as t
his may damage the sensor.
When the calibration is over, the STS-102 A 030 reference probe
should be removed from the insert and stored in an appropriate place,
for example in the carrying case included in the delivery.
Note…
We recommend recalibrating the STS-102 A 030 reference
probe at least once a year, more if there is any doubt about
its measuring capability.
The STS-102 A 030 reference probe may be calibrated as an
independent unit or as a system together with the calibrator.
Fig. 2
0 m
m
Reference
obe
Insert
Sensor-under-test
Reference level for
reference sensor as well
as for sensor-under-test
Reference sensor
i

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8.3 The calibration sequence
1. Place the special insert in the calibrator.
2. Place the STS-102 A 030 reference probe in the reference hole of
the special insert. Make sure that the STS-102 A 030 reference
probe reaches down to the bottom. The cable is placed in the
groove of the insert. If the calibrator’s reference input is used,
make sure that the correct calibration data for the STS-102 A 030
reference probe have been downloaded, see user manual 105447
for ATC-156B or 127139 for RTC-156B and C. If another
reference instrument is used, please follow the instructions for
this.
3. Place the sanitary sensor in the insert and make sure that the
cable of the reference probe is not jammed, but completely free.
4. When calibrating it is a good idea to try to create a calibration
situation as close to reality as possible.
5. If the sensor is normally insulated in the process, it should also be
insulated in a similar way during the calibration to secure the
same thermal conditions. (See fig. 3).
Fig. 3

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6. Calibration and setup of the calibrator as usual and as described
in the user manual.
Please note that all temperature points and the accuracy during
the calibration must relate to the reference probe and not to the
“Read” value in the display.
To avoid discrepancies between “Set” value and “Read” and
“True” values it is recommended to use the “Set Follows True”
function as described in the user manual 105447 for the ATC or
127139 for RTC-156 calibrator. If using this function, calculate on
a prolonged calibration time of approx. 10 minutes per calibration
point.
8.4 Drilling instructions
In order to obtain good measuring results it is important that the hole
of the insert fits exactly into the dimensions of the sensor tube to
ensure a good contact between the sensor and the insert. It is
especially important that the flange of the sensor fits tight to the
surface of the insert.
Procedure:
1. The part of the sensor that must be dropped down into the insert
is measured. The diameter “d” and the length “l” must be
measured. If the sensor has different diameters, all of these must
be measured as well as their corresponding lengths. It is
important to note that there where the change in the sensor’s
diameter occurs the transition is gradual in an arched form (“r1”
and “r2”).
2. The hole for the sensor is placed in the centre of the insert. The
diameter is stated as the measured diameter + 0.2 mm. The
tolerance of the diameter must be ±0.05 as indicated in fig. 4.
3. The length of the hole for the sensor is the measured length + 0.5
mm.
4. The hole for the reference probe must be similar to the total length
of the sensor “l1”, see fig. 4. The diameter of the hole for the
reference probe is ø4.2 mm as indicated in fig. 4.

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5. The hole for the reference probe is placed in the drilling. There
need to be 3 mm between the diameter of the reference probe
and the largest diameter of the sensor-under-test.
Fig. 4
A
A
A-A(1:1)

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