HOZAN DT-570 User manual

DT-570
SOLDERING IRON CHECKER
Thank you for purchasing the HOZAN DT-570 SOLDERING IRON CHECKER. With proper
care 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 in
service. Please keep this instruction manual available for reference.
Specifications
１
INSTRUCTION MANUAL
Mode selector
Display
Jack
Battery lamp
Sensor plate
Ω: Ground resistance
measurement
mV : Leakage current voltage
measurement
Power switch
Utilize this device to check
soldering irons’ condition and
keep it good always through
measuring leakage current
voltage and ground resistance
of them.
This is applied exclusively to
soldering irons which have
grounding circuits.
Identification of parts and contents
The battery is not warranted in its
life since just a testing battery.
・2-pin conversion
adapter
・Ground cord
with plug
9V Laminated (6F22) battery
Accessories
Accuracy
Measurement range
Resolution
300g
0.1 mV
0 to 199.9 mV
±(5%rdg + 1 dgt)
0.1 Ω
0.1 to 199.9 Ω
±(5%rdg + 1 dgt)
199.9 count (Burnout: 1)
2 times/sec.
9V Laminated (6F22) battery × 1
71(W) × 31(H) × 125(D) mm
(not including the protruding part)
Leakage
voltage
Ground
resistance
Resolution
Measurement range
Accuracy
Max. readout
Sampling rate
Battery life
External dimensions
Weight
Power supply

Load a battery.
Preparation
Use a Phillips screwdriver
No.1.
Locate the angled
portion of the lid
inside the structure.
１
２
These symbols are used throughout the instruction manual to alert the user to potential
safety hazards as follows :
Warning …Notice when incorrect handling could cause the user's death or serious
injury.
Caution …Notice when incorrect handling could cause injury to the user or material
damage.
Even if the instructions do not have Caution mark, there are some possibilities for
a
Warning and caution symbols
Precautions
1. The sensor plate is extremely sensitive to shock. Do not press the tip of the
soldering iron unnecessarily against the sensor plate when measuring.
2. Precise measurement can not be performed if the sensor plate fixing screws are
loose. Make sure that the sensor plate is fixed securely prior to use.
 Caution
Open the lid of the battery compartment located on the
bottom of the unit.
When remove the lid, binding with the body and the front
panel could be loosened together, but they will not fall
apart unless loosen the other screws.
Connect a 6F22 battery to the terminals correctly.
Return the lid to its former state.

Connect the plug of one side of the ground cord with plug provided to the jack on the
top of the unit.
Select the desired mode, mV (leakage current voltage measurement) or Ω(ground
resistance 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.
1
２
３
４
If the ground cord with plug is not connected, strange
numbers will displayed. But this in not malfunction.
Apply the plug of the other side of the ground cord with
plug connected with the jack to the sensor plate.
The numbers indicated on the display will get closer to
lower value gradually and be stable. Record that value.
When mV mode, let the read value… [V1]
When Ω mode, let the read value... [R1]
Operation
３
Preparation
２
Connecting
If the soldering iron to be measured has temperature control function, set it to
maximum temperature.
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.
This device can be used for soldering irons which have
grounding circuits.
Ａ Ｂ Ｃ
or terminal-less
３
Soldering irons
which have no
grounding circuits
are not applicable.
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.

・
・
・
・
The sensor plate is a consumable. Replace when the value R1becomes large.
[Replacement part : DT-570-1 Sensor plate]
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 not
use 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.
Connect the plug of the ground cord with plug which is
connected with the DT-570 to the socket of the 2-pin
adapter.
５
Apply the soldering iron’s tip to the center of the sensor
plate and heat the solder on the sensor plate until it is
melted enough.
Turn on the soldering iron and wait until the tip is
heated. Then tin the tip with a mall amount of solder.
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 Ω mode, let the read value... [R2]
Operation
６
７
８
９ Find 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 : Ω)
Maintenance and Calibration
４
16.10
1-2-12 Saiwaicho, Naniwa-ku, Osaka 556-0021, Japan
Tel : [phone] F ax : [phone]