HDZONDT-570

INSTRUCTION MANUALSOLDERING IRON CHECKER
Thank you for purchasing the HOZAN DT-570 SOLDERING IRON CHECKER. With propercare and handling, this fine instrument will provide years of trouble-free operation. Please
read this entire instruction manual carefully before attempting to place this instrument inservice. Please keep this instruction manual available for reference.

Identification of parts and contents
Displ

selector
Q : Ground resistancemeasurementmV :しeakage current voltage
measurement

JackSensor plate
Battery lamp

Power switch

Accessories■2-pin conversion /adapterX

Utilize this device to checksoldering irons1 condition andkeep it good always throughmeasuring leakage current
voltage and ground resistanceof them.
This is applied exclusively tosoldering irons which havegrounding circuits.

/\/ \9V Laminated (6F22) battery

The battery is not warranted in its
life since just a testing battery.

Specifications
Resolution
Measurement range
Accuracy
Resolution
GroundMeasurement
range
resistanceAccuracyMax. readout
Sampling rate
Power supply
Battery life

0.1 mVOto 199.9 mV
士 (5%rdg + 1 dgt)
0.1 〇0.1 to 199.9 Q
土 (5%rdg + 1 dgt)
199.9 count (Burnout:1)________________________
2 times/sec.
9V Laminated (6F22) battery x 1Approx. 20 hours (continuous use) (with a “low voltage” warning)

External dimensions

71(W) x 31(H) x 125(D) mm(not including the protruding part)

Weight300g

しeakagevoltage1Warning and caution symbols
These symbols are used throughout the instruction manual to alert the user to potential
safety hazards as follows :Notice when incorrect handling could cause the user's death or serious
injury.
ICautioni …Notice when incorrect handling could cause injury to the user or material
damage.
Even if the instructions do not have | ACautior^ mark, there are some possibilities foraPrecautions--------------------------------------------A Caution ----------------------------------------------- \1.

The sensor plate is extremely sensitive to shock. Do not press the tip of thesoldering iron unnecessarily against the sensor plate when measuring.

2.

Precise measurement can not be performed if the sensor plate fixing screws areloose. Make sure that the sensor plate is fixed securely prior to use.

Preparation

1

Use a Phillips screwdriver
No.1.
,

Load a battery.

Open the lid of the battery compartment located on thebottom of the unit.
When remove the lid, binding with the body and the front
panel could be loosened together, but they will not fallapart unless loosen the other screws.

Connect a 6F22 battery to the terminals correctly.

Return the lid to its former state.

2Preparation

2

Soldering irons
which have nogrounding circuits
are not applicable.

Connecting
When soldering irons which have power plugs type A(illustration A above):
Connect the power plug of the soldering iron to be measured
to the 2-pin adapter provided, and connect the 2-pin adapter
to the wall outlet.

5-------- :When soldering irons which have power plug type
B or C (illustration B or C above):
Connect similarly as when plugs type A after connect­
ing the soldering iron's ground terminal and the 2-pin
adapter’s cavity using an alligator clip and such.

3If the soldering iron to be measured has temperature control function, set it tomaximum temperature.

Operation
Connect the plug of one side of the ground cord with plug provided to the jack on thetop of the unit.

2

Select the desired mode, mV (leakage current voltage measurement) or Q(groundresistance measurement), by mode selector.
Depress the power switch.
Be sure that the BATTERY lamp does not illuminate. If it illuminates or the display
shows no letters, change the battery to a new one.

4

Apply the plug of the other side of the ground cord withplug connected with the jack to the sensor plate.
The numbers indicated on the display will get closer tolower value gradually and be stable. Record that value.
When mV mode, let the read value... [VJ
When Q mode, let the read value... [RJ
These values are the basic points of your using environment.
If the ground cord with plug is not connected, strange
numbers will displayed. But this in not malfunction.

3

Operation

5

Connect the plug of the ground cord with plug which isconnected with the DT-570 to the socket of the 2-pin
adapter.

6Turn on the soldering iron and wait until the tip isheated. Then tin the tip with a mall amount of solder.

7

Apply the soldering iron’s tip to the center of the sensor
plate and heat the solder on the sensor plate until it ismelted enough.

8

Wait until the displayed value is stable, and record it.
Read the value when the temperature of the soldering
iron reaches the highest temperature; read while heating
enough if the soldering iron has no temperature control
function.
When mV mode, let the read value... [V2]When Q mode, let the read value... [R2]

9Find the leakage current voltage (V) and the ground resistance (R)through the formula below.
Leakage current voltage V=V2-V1 (unit: mV)
Ground resistance
R=R2-R1 (unit: Q)

Maintenance and Calibration
・ The sensor plate is a consumable. Replace when the value[Replacement part: DT-570-1 Sensor plate]becomes large.

・ The sensor plate will be worn using rather lead-free solder than lead solder.
■ Wipe gently flux and such stuck on the painted surface of the unit using alcohol. Do notuse thinner, naphtha or such.
■ We attach a calibration certificate to DT-570-TA. Please ask HOZAN through your deal­
er to re-calibrate after using a definite period.
Refer to your dealer for that expense and details.

HOZAN TOOL INDUSTRIAL CO. LTD.
1-2-12 Saiwaicho, Naniwa-ku, Osaka 556-0021, Japan
https://www.hozan.co.jP/E/E-mail: th@hozan.co.jp

23.08

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