5.15.
DWell angle measurement
dwell angle is the number of degrees through which the distributor cam rotates while the breaker points are closed.
5.15.1. Insert the black test probe into the negative “CoM” terminal and the red test probe into the positive “V” terminal.
5.15.2. Turn the rotary switch to the dWell position.
5.15.3. Set number of cylinders with the dWell button (fig.1.3).
5.15.4. Connect the black test probe to the Ground terminal (-) on the vehicle battery and the red test probe to the contact breaker points or the
negative (-) terminal of the ignition coil.
5.15.5. When the engine is started the dwell angle will be displayed.
note:
To reduce the dwell angle reading the points gap must be increased, to increase the dwell angle the points gap must be reduced.
Refer to your owners handbook for detailed procedures for dwell settings and adjustments.
6. maintenance
Warning! Do not
attempt to repair or service your meter unless you are qualified to do so and have the relevant calibration,
performance test, and service information. To avoid electrical shock or damage to the meter
Do not
get water inside the case.
6.1.
rePlacing tHe Battery
Warning! to avoid electric shock, disconnect the test probes from any source of voltage before removing the battery door.
6.1.1.
When the battery becomes exhausted or drops below the operating voltage, will appear in the right hand side of the display. Replace
the battery.
6.1.2.
disconnect the leads from the meter.
6.1.3.
open the battery door by loosening the screws using a Phillip’s screwdriver.
6.1.4.
Remove the old battery and insert the new one, observing the correct polarity.
6.1.5.
Replace the battery cover and secure with the two screws.
Warning! to avoid electric shock, Do not operate the meter until the battery cover is secured in place.
6.2.
rePlacing tHe fuses
Warning! to avoid electric shock, disconnect the test probes from any source of voltage before accessing the fuses.
6.2.1.
open the battery door by loosening the screws using a Phillip’s screwdriver. Remove the battery.
6.2.2.
Remove the six screws around the back of the meter using a Phillip’s screwdriver.
6.2.3.
Gently part the casing then remove the blown fuse. Be careful not to damage the PCB.
6.2.4.
Install the new fuse into its holder. Join the casing back together and secure with screws.
note:
Always use a fuse of the correct size and value.
0.5A/250V fast blow for the 320mA range.
20A/250V fast blow for the 20A range.
6.2.5.
Replace the battery and cover and secure with the screws.
Warning! to avoid electric shock, Do not use the meter until it has been fully re-assembled.
6.3.
Periodically wipe the case with a damp cloth and mild detergent.
Do not
use solvents.
6.4.
Turn the meter off when not in use and remove the battery if stored for a long period of time.
6.5.
Do not
store the meter in a place of high humidity or high temperature.
sealey group, kempson Way, suffolk Business Park, Bury st edmunds, suffolk. iP32 7ar
01284 757500
01284 703534
www.sealey.co.uk
environment Protection
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
Weee regulations
dispose of this product at the end of its working life in compliance with the eU directive on Waste electrical and electronic equipment
(Weee). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
Battery removal
Under the Waste Batteries and Accumulators Regulations 2009, Jack Sealey ltd are required to inform potential purchasers of products
containing batteries (as defined within these regulations), that they are registered with Valpak’s registered compliance scheme. Jack
Sealey ltd Batteries Producer Registration number (BPRn) is BPRn00705.
note
: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice.
important
: no liability is accepted for incorrect use of this product.
Warranty
: Guarantee is 12 months from purchase date, proof of which is required for any claim.
TA302 Issue 3 (HF) 02/10/18
Original Language Version
© Jack Sealey limited
