
EN
Original Instructions
Version 1
April 2024
23708
12V LCD
BRAKE FLUID
BOILING POINT
TESTER

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EN
User Manual for: Brake Fluid Boiling Point Tester
Stock No: 23708
Part No: BFT5
Read this manual in full before using this product and
retain it for future use. Always use the latest version of
the manual. Please visit drapertools.com/manuals for
the latest version.
1. Intended Use
This product is designed to accurately measure the water
content and boiling point of brake uid essential for
safety checks and servicing. Additional to brake uid,
the tester can also measure the temperature of other
uids in conjunction with a thermocouple.
Any other application beyond the conditions established
for use will be considered misuse. Draper Tools accepts
no responsibility for improper use of this product.
This product is suitable for use by enthusiasts and
tradespersons alike.
2. Specication
Stock No. 23708
Part No. BFT5
Compatible Brake Fluid: Dot 3 / Dot 4 / Dot 5.1
Power Supply: 12V Car battery
Testing Current: 5-7A
Brake Fluid Measuring Range: ≤ 320°C
Boiling Point Accuracy: +/- 5%
Tester Dimensions: 90 x 168 x 40mm
Probe Length: 100mm
Probe Diameter: 25mm
Net Weight: 436g
Syringe Capacity: 10ml
Plastic Beaker Capacity: 50ml
Positive Lead Length: 2m
Negative Lead Length: 2m
Flexible Tube Length: 200mm
Working Environment: 0-50°C

3. Health and Safety Information
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EN
Read the instruction manual
Warning!
Do not abandon in the environment
Wear face mask and safety glasses
Keep out of reach of children
WEEE – Waste Electrical & Electronic Equipment
Do not dispose of this product with
domestic waste
Important: Read all the Health and Safety instructions
before attempting to operate, maintain or repair this
product. Failure to follow these instructions may result in
injury or damage to the user, the product or the vehicle.
3.1 General Health & Safety
• DO NOT use the tester for any other purpose than
which it is designed for.
• DO NOT touch the probe while it is switched on as it
will be hot.
• DO NOT allow untrained persons to use the tester.
• Keep children and unauthorised person away from the
work area.
• DO NOT use whilst under the inuence of drugs,
alcohol or intoxicating medication.
• Keep the work clean and tidy and ensure adequate
lighting.
• After testing, ensure to keep the tester submerged for
least 3 seconds to allow the heating coil to cool down.
• When testing the brake uid level MUST be above the
minimum volume level stated on the beaker.
• The tester is for use with 12V circuits only.
• Only use the leads and clips supplied with the tester.
• Avoid shaking or knocking the testing probe
especially after testing.
• Handle the unit with care and if dropped or showing
signs of damaged get it checked by a qualied service
person.
3.2 Brake Fluid Safety
WARNING!
– Brake uid is ammable – keep away
from sources of ignition and hot surfaces such as
the exhaust manifold.
WARNING!
– Brake uid will damage paintwork,
clear up any spillages immediately.
• Always read and follow the safety instructions on the
brake uid container.
• Wear suitable eye and hand protection. If brake uids
enter eyes rinse with plenty of water and seek medical
advice.
• Dispose of waste uid in accordance with local
authority regulations.
3.3 Working with Vehicle Batteries
WARNING!
– Risk of explosive gases - Working in
the vicinity of lead-acid batteries is dangerous as
they generate explosive gases during normal
operation. Follow these instructions and those
published by the battery manufacturer when
working in the vicinity of the battery.
• When working near a lead-acid battery, ensure
someone is within range of your voice or close enough
to come to your aid.
• Never smoke or allow a spark or ame near the battery
or engine.
• Take extra care not to drop a metal tool onto the
battery. It could spark or short circuit the battery.
• Wear suitable eye and face protection.
• Have plenty of fresh water and soap nearby in case
battery acid contacts eyes, skin or clothing. If acid enter
eyes, wash eye under cold clean running water for at
least 15 minutes and get medical attention immediately.
• Remove any metallic items such as rings, bracelets,
necklaces and watches. A lead-acid battery can
produce a short circuit current high enough to weld a
metallic item, which may cause a severe burn.
3.4 Explanation of Symbols

4. Identication
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EN
(1) Probe cover
(2) Testing probes
(3) Light
(4) Start button
(5) Temperature (°C/°F) button
(6) Save/Read button
(7) LCD Display screen
(8) Storage bracket for leads
(9) K-Type thermocouple socket (left side)
(10) (+) positive red clip
(11) (-) negative black clip
(A) 1 x Storage case
(B) 1 X Tester
(C) 1 x Syringe
(D) 1 X Plastic tube
(E) 1 X 50ml measuring beaker
Please visit drapertools.com for our full range of accessories and consumables.
Carefully remove the product from the packaging and
examine it for any signs of damage that may have
occurred during shipment. If any part is damaged or
missing, do not attempt to use the product.
Please contact the Draper Helpline; contact details can
be found at the back of this manual.
(1)
(7)
(8)
(5)
(4)
(6)
(2)
(3)
(11)
(A)
(B)
(C) (D) (E)
(10)

5. Operation
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EN
Important: Before operating this product, read and
understand all the safety instructions listed in this
manual.
5.1 Brake Fluid Boiling Point
• The wet boiling point is the reference temperature for
changing the brake uid.
• The dry boiling point is the reference temperature for
new brake uid.
Brake Fluid Type DOT 3 DOT 4 DOT 5.1
Dry Boiling Point ≥ 205°C ≥ 230°C ≥ 260°C
Wet Boiling Point ≥ 140°C ≥ 155°C ≥ 180°C
5.2 Testing the Brake Fluid
1 Fig.
1. Connect the clips to a 12V vehicle battery – ensuring
the red (+) clip is connected to the positive terminal
on the battery and the black (-) clip is connected to
the negative terminal.
2. The tester will switch on automatically when
connected to the battery and function’ A’ (Brake uid
test) will be displayed.
3. Remove the cover (1) from the testing probe (2) and
use the syringe (C) supplied to draw some brake uid
into the test beaker (E).
4. Fully immerse the end of the probe (2) into the brake
uid – ensure the brake uid level is above the
minimal brake uid volume line on the beaker.
5. Press and hold the ‘Start’ button (4) to start the test –
ensure that the probe remains upright in the uid
during the test.
6. Refer to the chart under section 5.1 Brake uid
boiling point to determine whether the brake uid
needs replacing.
• After testing wait at least 3 seconds for the heating
wire to cool down before removing the probe from the
brake uid.
• If ‘Wait cool’ appears on the screen allow the heating
wire to cool down before the next test.
5.3 Measuring using External
Thermocouple (not supplied)
1. Connect the clips to a 12V vehicle battery – ensuring
the red (+) clip is connected to the positive terminal
on the battery and the black (-) clip is connected to
the negative terminal.
2. The tester will switch on automatically when
connected to the battery and function’ A’ (Brake uid
test) will be displayed. Press and hold the ‘°C/°F’
button (5) for 3 seconds to switch to function ’B’
(External Thermocouple).
3. Connect a K-type thermocouple to the tester socket
(9) to start the measurement.
• During function ‘B’ if the thermocouple is not
connected or the measured temperature is above
500°C, ‘Hi’ will appear on the screen.
• During function ‘B’ if measured temperature is below
-60°C, ‘Lo’ will appear on the screen.
5.4 Save Button Operation
• Press and hold the ‘Save’ button to save the current
brake uid boiling point.
• Press the ‘Save’ button to retrieve the last 5 reading
saved.
(11)
(E)
(3)
(1)
(2)
(10)

6. Maintenance, Storage and Disposal
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EN
6.1 Maintenance
• After use, wipe clean the testing probe and replace
the cover.
• After use and when storing wrap the leads round the
storage bracket (8).
• Store all the parts in the case supplied and store in a
cool, dry, childproof area.
6.2 Calibration Test
• To conrm the accuracy of the tester, carry out a test
using clean water.
• If the tester is working correctly the temperature
reading will be 100°C/212°F.
6.3 Disposal
At the end of its working life, dispose of the product
responsibly and in line with local regulations. Recycle
where possible.
• DO NOT dispose of this product with domestic waste;
most local authorities provide appropriate recycling
facilities.
• Dispose of brake uid/oil separately and in
accordance with local regulations;
DO NOT abandon it in the environment.
7. Warranty
24 months
Visit drapertools.com/warranty for full details.

Notes
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EN
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EN

© Published by Draper Tools Limited© Published by Draper Tools Limited
Delta International
Delta International BV
Oude Graaf 8
6002 NL
Weert
Netherlands
Contact Details
Draper Tools
Draper Tools Limited
Hursley Road
Chandler’s Ford
Eastleigh
Hampshire
SO53 1YF
UK
Website: drapertools.com
Email: [email protected]
Product Helpline: +44 (0) 23 8049 4344
Telephone Sales Desk: +44 (0) 23 8049 4333
General Enquiries: +44 (0) 23 8026 6355
General Fax: +44 (0) 23 8026 0784
Please contact the Draper Tools Product Helpline for repair and servicing enquiries.
