EU Declaration of Conformity according to directive 2014/34/EU (ATEX)
Thermoprobe, Inc. hereby declares the TP7-D and TP9-A products to be in accordance with the following standards
and directives:
Name and address of Manufacturer ThermoProbe, Inc.
112A Jetport Dr.
Pearl, MS 39208 USA
Description of Devices TP7-D and TP9-A
Portable Electronic Thermometers
Ex-Designation II 1 G Ex ia IIB T4 Ga
EC-Type Examination Certificate ITS17ATEX201515X
Notified Body Intertek Italia SPA
Via Guido Miglioli, 2/A
20063 Cernusco sul Naviglio (MI), Italy
Identification Number: 2575
Auditing body (QAN) Intertek Italia SPA
Via Guido Miglioli, 2/A
20063 Cernusco sul Naviglio (MI), Italy
Identification Number: 2575
Applied Harmonized Standards
EN 60079-0: 2018 Explosive atmospheres – Part 0: Equipment – General requirements
EN 60079-11: 2012 Explosive Atmospheres – Part 11: Equipment Protection by Intrinsic
Safety ‘i’
Applied European Directives
2014/34/EU - Equipment and protective systems intended for use in potentially explosive atmospheres
his manual describes the basic function, use and safety instructions for a model TP7-D and TP9-A portable digital
T
thermometer instrument.
REPLACING BATTERY
hen the battery voltage is low, the low battery icon will show on the display.
W
When the battery voltage is very low, the backlight will no longer operate and the low battery icon will ‘blink’ on the
display.
Replace batteries as soon as possible in a safe location after the low battery is noticed. This will ensure backlight
operation, and avoid possible malfunctioning. Do not attempt to calibrate the instrument if the low battery indicator is
displayed.
WARNING:
Ba
Batteries must be of correct approved type.
Batteries must be installed with correct polarity making sure the (+) end of the battery is aligned with (+)
Batteries must not be installed with polarity reversed where one cell could charge another cell.
New batteries must not be mixed with old batteries. Batteries must not be mixed with batteries of other
a) Ensure the instrument is in a non-hazardous area & powered off.
b) Use a #2 Phillips drive to remove the 3 screws holding the front cover on the TP7-D or the 2 screws holding the
front cover on the TP9-A.
c) Use a #1 Phillips drive to remove the single screw from the battery cover. Remove the battery cover, push one
battery towards the spring contact and lift battery up from the holder, and then remove the remaining battery.
d) Install each new battery making sure the (+) end of the battery is aligned with (+) symbol embossed in the battery
case.
e) Replace the retaining device and reinstall the cover.
CERTIFIED Batteries for the TP9-A and TP7-D are as follows:
Manufacturer Type Part Number
Duracell AA (LR6) Alkaline MN1500
Panasonic AA (LR6) Alkaline LR6XWA
GP (Gold Peak) AA (LR6) Alkaline GP15A
tteries must be changed in Non-hazardous area.
symbol embossed in the battery case.
models or manufacturers.
AUTHORIZED REPAIR
t is recommended that service beyond the scope of this manual be performed by ThermoProbe, Inc. or one of its
Pressing the Power button once will turn on the device. (Note: The instrument will automatically power off 20 minutes
after the last button push.) Pressing and holding the “Power” button until it displays ‘OFF’ will turn off the instrument.
:
Selection MENU
Use the “Up/Down” Menu buttons for the following selections:
LOG: Saves current stable temperature up to 10 readings
C-F: Select Celsius or Fahrenheit temperature display
DECIMAL: Select 0.1 or 0.01 display resolution
MEMORY - Use “up/down” buttons to display:
Lowest reading
Average reading
Highest reading
Saved (Logged) readings 1-10
(Use CLR LOG to erase saved readings)
CALIBRAT: Enter calibration/adjustment mode
(Requires 3 digit password: 112) - See Calibration Procedure
When the instrument is operating in low-light conditions a photocell will detect this situation and turn the backlight
on.
Temperature Logging
It is necessary for the temperature to be stable before logging temperature. The display arrows will flash 3 times when
the temperature reading has stabilized.
If you wish to log the temperature, Press the “down” button once until LOG is displayed. Press the “Select” button
once to save a reading. An acknowledgment of a saved reading will occur with a display of “LOG 1-10”. This can be
repeated for up to 10 saved readings.
The logged temperatures can be accessed from the MEMORY menu. Logged temperatures will display with the LOG
icon and a prefix (1,2,3,4,5,6,7,8,9,0) corresponding to the previously logged readings. The up/down buttons can be
used to advance through the readings. Select EXIT to return to the temperature display.
Logged readings will be retained even after the unit is powered off. Logged readings can be cleared by going to the
Memory section of the Menu and selecting CLR LOG. New readings cannot be taken until the readings are cleared.
USB Memory
A micro-usb connection is available on the circuit board allowing access to calibration & logged data.
Warning: Do not access the circuit board in a hazardous location.
Lowest, Highest & Average readings
The lowest, highest and average readings can be accessed through the MEMORY menu. The readings are indicated
by the LOW, AVG or HIGH icons on the display. These readings are not related to the logged readings, but are
determined from the temperature when the unit is powered on. These readings are deleted after the unit is powered
off.
Display Codes
OPEN CKT - Indicates the sensor is operating above its temperature limit, the Probe Assembly is open circuited
from a cut or broken section, or the cable is not properly inserted at the circuit board terminal. The most common cause
is a damaged cable.
SHORT CKT - Indicates the sensor is operating below its temperature limit or the Probe Assembly is short circuited
due to a smashed or cut section. The most common cause is a damaged cable.
NONE– There are no logged readings saved in memory.
2 WIRE– A 2 wire probe connection has been detected.
3 WIRE– A 3 wire probe connection has been detected.
NO CAL– The device does not have stored calibration data for the temperature probe. Perform an
The TP7-D or TP9-A can use either 2-wire or 3-wire probe assemblies.
ThermoProbe replacement probe assemblies are available in different configurations. The cable length is available in
lengths up to 50 meters or 165 feet. Standard brass markings are available applied in 5 feet or 1 meter increments. The
sensors are available with 4 weight types. The probe assembly part configurations are as follows:
REPLACING THE PROBE ASSEMBLY
NOTES:
1) Replacement of the probe assembly requires re-calibration of the device. Replacement should only be
done by experienced personnel and if calibration equipment is available.
2) Please refer to IEC/EN 60079-19 (Explosive atmospheres - Part 19: Equipment repair, overhaul and
reclamation) when making the repair.
3) Only use replacement probe assemblies obtained from ThermoProbe, Inc. or one of its authorized
distributors.
a) First follow REPLACING BATTERY instructions a through c to remove batteries.
b) On the circuit board push the terminals clamps down and remove the wires noting the wire lead color code
arrangement. See Figure 1.
White – positive sensor wire
Green – cable compensating wire (not used on 2 wire models)
Sil ver – nega t ive s ensor wire & sh i eld w ire
c) Set the cover and circuit board aside and remove the strain relief knot in cable assembly.
d) Unwrap the cable from the assembly and pull the cable free of the rubber grommet.
e) Insert the new cable wire through the rubber grommet and then pull several inches of cable past the grommet.
f) Tie a simple overhand knot in the cable at the grommet for strain relief and pull the knot up to the grommet.
g) On the circuit board, push the terminal clamp levers down and insert the new wire leads according to the terminal
color codes. The label indicates how to connect a 2 wire probe vs. a 3 wire probe (includes green wire). See Figure 1.
h) Reinstall the batteries and cover and re-spool the cable assembly.
i) Perform a calibration (see calibration procedure).
The calibration mode should only be accessed by qualified personnel with proper equipment; otherwise
calibration integrity may be compromised. Read the following instructions carefully.
At least 2 points are required to make an adjustment. (2-Point calibration). Additional points can be taken
(3-Point or 4-Point calibration) to calibrate a large range of temperatures (e.g. 0°F to 300°F) or if you want
to match specific points in your range. You should include points at the bottom and top of the range. You
must have the proper equipment for every point of calibration.
Do not attempt to calibrate the instrument if the low battery indicator has been displayed since the new
calibration values may not be properly stored to memory.
Refer to API 7.2 or another recognized standard for routine calibration verification recommendations.
Calibration must not be performed in any environment considered to be hazardous.
Equipment needed:
Ice Bath or other low temperature bath with reference thermometer.
Warm to hot fluid bath between 20°C (approx 68°F), or higher up to 90°C (approx 194°F) with reference
thermometer. (see Note)*
Optional high temperature oil bath at about 150°C/300°F and reference thermometer.
*Note for limited calibration: If entire range capability of instrument is not required, the 2 point high adjustment
can be made at a temperature relatively close to the common temperature of the liquid measured and accuracy
will be maintained within the limited range. For example: If liquid product to be measured is commonly less than
38°C (approx. 100°F), then a “high point” calibration can be made near that temperature. Temperature accuracy
above this calibration point cannot be assured.
To calibrate proceed with the following steps:
1. Enter calibration mode by going to CALIBRAT in the selection Menu. When this is selected, the user will be
prompted to enter a 3 digit password. Using the “up/down” buttons allows each digit to be adjusted. Once the
correct value is set, advance to the next digit by pressing the “select” button. After the 3rd digit is set press the
“select” button to enter Calibration mode. If an incorrect password is entered, FAIL will display and the unit
will return to temperature mode. Once in Calibration mode the ‘CAL’ icon on the display will blink. The calibration mode password is:112
2. Select ADJUST from the calibration menu and then select the desired number of calibration points. Pick
2PT CAL, 3PT CAL or 4PT CAL using the select button.
NOTE: If the user is not ready to enter the calibration mode, the EXIT option can be chosen.
3. The device is now in adjustment mode. The display will show ADD PT1. The “up/down” buttons can be used
to select a different point to adjust or CANCEL. If the CANCEL option is chosen then the calibration
procedure is exited and the prior calibration values are re-activated.
ADD PT1 = Lowest temperature point
ADD PT2 = the next higher temperature point
ADD PT3 = the next higher temperature point (only used in 3-point calibration or 4-point calibration mode)
ADD PT4 = the highest temperature point (only used in 4-point calibration mode)
ADJ DONE = Save and exit calibration mode (all points adjusted & valid)
CANCEL = Exit calibration mode without saving
Pick which point to adjust and press the select button to begin. The current temperature will display and the
CAL icon and the number of the point to adjust will now be blinking.
NOTES:
o Calibration can be performed to hundredths of a degree.
o The up/down buttons can be used to increase or decrease the display reading.
o Holding the up/down buttons adjusts 0.1 degrees increments.
o Momentary Presses of the up/down buttons for less than 0.5 seconds adjusts 0.01 degrees for every
press.
o The display arrows will flash 3 times when the temperature reading has stabilized.
o All points must be saved before selecting ADJ DONE. A DATA ERR message will display if all
points have not been saved or are not in increasing temperatures. (Ex: PT1 = 32F, PT2 = 120F, PT3
= 250F)
o While in calibration mode the temperature will display based on the prior calibration curve.
o The RESETCAL feature can be used to return the unit to a factory calibration curve.
(calibration/adjustment will still be required).
o The RESETCAL (reset to factory calibration) feature should be used if the probe is replaced using
a 2-wire assembly instead of a 3-wire assembly or if prior calibration has caused the unit to read
excessively out of tolerance.
4. Once the temperature has stabilized, using a reference device check the actual temperature in the bath and use
the “up/down” buttons to adjust the device to the actual temperature. Once the device temperature matches the
actual temperature, press the select button to save the setting. The display will show SAVE or EXIT. If
EXIT is selected it will return to the ADD PT1 menu. Once SAVE is selected the display will advance to the
next temperature point for adjustment showing ADD PT…. The up/down buttons can be used to select a
different point to adjust or CANCEL. If the CANCEL option is chosen then the calibration procedure is exited
and the prior calibration values are re-activated.
o NOTE: Once SAVE is selected the temperature display will return to the previous reading until the
calibration is completed.
o NOTE: If SAVE is selected before the temperature has stabilized, the display will show NOT
STABLE. Wait for the temperature to stabilize before saving.
5. Move the probe to the next bath and repeat step 4. After you save the highest temperature point the display
will flash READY and the new calibration settings will be in effect. The buttons will now resume their
normal operating functions. The calibration settings are saved to flash memory when the device is turned off.
The unit will not turn off automatically. Manually turning the unit off saves the calibration data.
These ThermoProbe instruments are intended for use in both hazardous (potentially flammable or explosive) and nonhazardous areas under dry conditions at ambient temperatures between -20 to 40°C.
The instruments are not intended for use in permanent outdoor installations and are not intended or tested for icing
conditions. Additional means of protection should be used where the equipment may be exposed to excessive external
stresses (e.g. vibration, heat, impact, etc.). The user must have a working knowledge of appropriate safety
requirements.
a) The user must have a thorough knowledge of the products to be measured and must know of the safety precautions
to be taken when working with the material to be measured.
b) The instrument shall be checked concerning severe defects; check that instrument is complete (including
grounding/bonding cable), has good batteries, etc. If necessary, check measurement accuracy. If any defects are
found, the instrument should not be used until repairs have been made.
c) The instrument, especially cable and probe, should be clean for safety and ease of use.
d) The physical measurement location should be evaluated for primary and secondary risks.
e) Power source must be removed before performing any maintenance.
f) Exchange of components other than the batteries may compromise ATEX/IECEx or other certifications and shall
only be undertaken by ThermoProbe or one of its qualified service providers. See also “Authorized Repair” section.
g) To reduce the risk of fire or explosion, this device must be bonded to the vessel according to clause 6.3.2 e),
IEC/EN 60079-14 before and during introduction into the vessel and shall remain bonded until the sensor probe is
completely withdrawn from the vessel.
h) The device must remain bonded to ground/earth using the provided connection whenever a hazardous atmosphere
could be present as well as during situations where electrostatic charging can occur such as the unwinding/winding of
the thermometer cable or filling or emptying of the tank.
CAUTION: In the event that any part of the instrument should become electrostatically charged in a potentially
hazardous location, follow company policies for testing and clearing the area of any hazardous gases before
attempting to bond the instrument to earth ground. If this is not possible allow sufficient time for the instrument to
naturally dissipate any charges before attempting to bond to earth ground. Given the atmosphere, this could take
several hours.
GUIDANCE NOTE
Problems with aggressive substances and environments: Be aware of aggressive substances and that extra protection
may be needed.
Caustic soda, highly basic and acidic substances will erode aluminum and copper ground clip and wire. The Sensor-
Cable assembly has external surfaces of stainless steel and fluoropolymer material. Exposure to Excessive heat can
melt the plastic components of the instrument.
Applicable Standards are: Agency or Safety Designation
IEC 60079-0:2017 Ed 7, IEC 60079-11:2011 Ed 6 IECEx
EN 60079-0:2018, EN 60079-11:2012 Europe: ATEX
INTRINSIC SAFETY
Intrinsically safe equipment is defined as "equipment and wiring which is incapable of releasing sufficient electrical
or thermal energy under normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture
in its most easily ignited concentration." (ISA-RP12.6) This is achieved by limiting the amount of power available to
the electrical equipment in the hazardous area to a level below that which will ignite the gases.
In order to have a fire or explosion, fuel, oxygen and a source of ignition must be present. An intrinsically safe system
assumes the fuel and oxygen is present in the atmosphere, but the system is designed so the electrical energy or
thermal energy of a particular instrument loop can never be great enough to cause ignition.
BATTERIES
WARNING:
Batteries must be changed in Non-hazardous area.
Batteries must be of correct approved type.
Batteries must be installed with correct polarity making sure the (+) end of the battery is aligned with (+)
New batteries must not be mixed with old batteries.
Batteries must not be mixed with batteries of other models or manufacturers.
Batteries must not be installed with polarity reversed where one cell could charge another cell.
CERTIFIED Batteries for the TP9-A and TP7-D are as follows:
Manufacturer Type Part Number
Duracell AA (LR6) Alkaline MN1500
Panasonic AA (LR6) Alkaline LR6XWA
GP (Gold Peak) AA (LR6) Alkaline GP15A