7.2. After-sale service ................................................................................................. 18
EN - 1
HT210
1. SAFETY PRECAUTIONS AND PROCEDURES
This meter is compliance with safety Standard IEC/EN61010-1 related to electronic
measuring instruments. For your own safety and to avoid damaging the instrument follow
the procedures described in this instruction manual and read carefully all notes preceded
by this symbol .
When taking measurements:
• Avoid doing that in humid or wet places
• Avoid doing that in rooms where explosive gas, combustible gas, steam or excessive
dust is present
• Keep you insulated from the object under test
• Do not touch exposed metal parts such as test lead ends, sockets, fixing objects,
circuits etc
• Avoid doing that if you notice anomalous conditions such as breakages, deformations,
fractures, leakages of battery liquid, blind display etc
• Be particularly careful when measuring voltages exceeding 20V to avoid risks of
electrical shocks
The following symbols are used:
CAUTION - refer to the instruction manual - an improper use may damage the
instrument or its components
Danger high voltage: risk of electric shocks
Double insulated meter
AC voltage
DC voltage
1.1. PRELIMINARY
• This instrument has been designed for use in environments of pollution degree 2
• It can be used for VOLTAGE measurements on installations of CAT III 600V
• This instrument can perform only AC sinusoidal voltage measurements
• You must comply with the usual safety regulations aimed at protecting you against the
dangerous electric current and protecting the instrument against an incorrect operation
• Only the original test leads supplied along with the instrument guarantee compliance
with the safety standards in force. They must be in a good conditions and, if necessary,
replaced with identical ones
• Do not test nor connect to any circuit exceeding the specified overload protection
• Do not take measurements under environmental conditions exceeding the limits
indicated in chapter 6.1.1 and 6.2.1
• Make sure that battery is correctly installed
• Before connecting the test probes to the installation make sure that the rotary selector
is positioned on the right function
• Make sure that LCD and rotary selector indicate the same function
EN - 2
HT210
1.2. DURING USE
Read the recommendations which follow and the instructions in this manual:
CAUTION
An improper use may damage the instrument and/or its components or injure
the operator.
• When changing the range, first disconnect the test leads from the circuit under test in
order to avoid any accident
• When the instrument is connected to measuring circuits never touch any unused
terminal
• When measuring resistors do not add any voltage. Although there is a protection
circuit, excessive voltage could cause malfunctioning
• If during measurement the displayed values remain constant check whether the HOLD
function is active
1.3. AFTER USE
• After using the instrument turn it off
• If you expect not to use the instrument for a long period remove the battery to avoid
leakages of battery liquids which may damage its inner components
EN 61010-1: Safety requirements for electrical equipment for measurement, control and
laboratory use, Part 1: General requirements, gives a definition of measuring category,
usually called overvoltage category. Paragraph 6.7.4: Measuring circuits:
(OMISSIS)
circuits are divided into the following measurement categories:
•Measurement category IV is for measurements performed at the source of the low-
voltage installation
Examples are electricity meters and measurements on primary overcurrent protection
devices and ripple control units
• Measurement category III is for measurements performed in the building installation.
Examples are measurements on distribution boards, circuit breakers, wiring, including
cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and
equipment for industrial use and some other equipment, for example, stationary
motors with permanent connection to fixed installation
•Measurement category II is for measurements performed on circuits directly
connected to the low voltage installation
Examples are measurements on household appliances, portable tools and similar
equipment
•Measurement category I is for measurements performed on circuits not directly
connected to MAINS
Examples are measurements on circuits not derived from MAINS, and specially
protected (internal) MAINS-derived circuits. In the latter case, transient stresses are
variable; for that reason, the norm requires that the transient withstand capability of the
equipment is made known to the user
EN - 3
HT210
2. GENERAL DESCRIPTION
The HT210 meter performs, in completely Autorange, the herewith measurements:
• DC Voltage
• AC sine voltage
• Resistance and Continuity test
• Capacitance
• Frequency
• Duty cycle
• Diode test
• Temperature (°C/°F) with type K probe
All selectable by means of a 7 position rotary selector (including OFF position). Also are
available the HOLD key to hold the displayed value and enable/disable backlight
feature, the Hz% key for manual selection of frequency and duty cycle measurements, the
REL key for Relative measures and the MODE key for selection of different features which
are common to the same position of rotary selector. The selected quantity is displayed with
indication of measuring unit and active functions. The instrument disposes of an Auto
Power Off function consisting in an automatic switching off 30 minutes after last selector
rotation.
3. PREPARATION FOR USE
3.1. INITIAL
This instrument was checked both mechanically and electrically prior to shipment. All
possible cares and precautions were taken to let you receive the instrument in perfect
conditions.
Notwithstanding we suggest you to check it rapidly (eventual damages may have occurred
during transport – if so please contact the local distributor from whom you bought the
item).
Make sure that all standard accessories mentioned in paragraph 6.3.1 are included.
Should you have to return back the instrument for any reason please follow the
instructions mentioned in paragraph 7.
3.2. SUPPLY VOLTAGE
The instrument is supplied by 1x9V battery type IEC 1604 NEDA 6F22. When battery is
low, a “
” low battery indication is displayed. To replace/insert battery please refer to
paragraph 5.2.
3.3. CALIBRATION
The instrument complies with the technical specifications contained in this manual and
such compliance is guaranteed for 1 year. Annual recalibration is recommended.
3.4. STORAGE
After a period of storage in extreme environmental conditions exceeding the limits
mentioned in paragraph 6.2.1 let the instrument resume normal measuring conditions
before using it.
EN - 4
HT210
4. OPERATING INSTRUCTIONS
4.1. INSTRUMENT DESCRIPTION
4.1.1. Front panel description
LEGEND:
1. LCD
2. Rotary selector
3. COM input jack
4. VΩTempCAPHZ% input jack
5. MODE key
6. Hz% key
7. HOLD
8. REL key
9. Battery cover
key
Fig. 1: Instrument description
EN - 5
HT210
4.2. DESCRIPTION OF FUNCTION KEYS
4.2.1. HOLD key
By pressing HOLD key the measured value is frozen on the display where the symbol
"HOLD" appears. Pressing again HOLD to disable this function and resume normal
operation. By pressing the key at least 1 second the enable/disable of backlight feature
can be performed. This feature is active for any position of rotary selector.
4.2.2. Hz% key
By pressing Hz% key the selection of frequency and duty cycle measurements on
Hz%
and Hz% positions of selector is performed. The frequency range is different in this two
positions.
4.2.3. REL key
By pressing REL the relative measure is activated. The meter sets the display to zero and
saves the actual value as reference. The “REL” symbol is shown at display. This function
is not active on Hz, Duty Cycle, Continuity Test, Diode Test and Temperature
measurements. Pressing again the key to exit from this function.
4.2.4. MODE key
By pressing MODE key the selection of a double measured functions which are present at
display is performed. In particular this key is active only in CAPΩ/ position to select
among Diode Test, Continuity Test and Resistance measurements.
4.2.5. Auto power Off
The instrument automatically turns off 30 minutes after last pressure of keys or last
selector rotation. To resume operation turn the selector on OFF and turn on the instrument
again.
EN - 6
HT210
4.3. MEASUREMENTS
4.3.1. DC Voltage measurement
CAUTION
The maximum input for DC voltage is 600V. Do not attempt to measure
higher voltages to avoid electrical shocks or damages to the instrument.
Fig. 2: Using the meter for DC voltage measurement
1. Switch on . “DC” symbol is displayed
2. Insert the test leads into the jacks, the red plug into VΩTempHz%CAP jack and
black plug into COM jack (see Fig. 2)
3. Connect the red and black test leads to the positive and negative poles of the circuit
under test respectively. The voltage value is displayed
4. If the message "
O.L" is displayed the higher range is reached
5. The symbol "-" on the instrument display indicates that voltage has opposite direction
with regard to the connection of Fig. 2
6. For HOLD function and Relative measurement please refer to paragraph 4.2
EN - 7
HT210
4.3.2. AC Voltage measurement
CAUTION
The maximum input for AC voltage is 600V. Do not attempt to measure
higher voltages to avoid electrical shocks or damages to the instrument.
Fig. 3: Using the instrument for AC voltage measurement
1. Switch on
. “AC” symbol is displayed
Hz%
2. Insert the test leads into the jacks, the red plug into VΩTempHz%CAP jack and
black plug into COM jack (see Fig. 3)
3. Connect the test leads to the circuit under test; the voltage value is displayed
4. If the message "O.L" is displayed the higher range is reached
5. Pressing the Hz% key until the symbols “Hz” or “%” are shown at display to meaning
the readings of frequency or duty cycle associated to voltage AC value
6. For HOLD function and Relative measurement please refer to paragraph 4.2
EN - 8
HT210
4.3.3. Resistance and Continuity test measurements
CAUTION
Before taking resistance measurements in circuit remove power from the
circuit being tested and discharge all capacitors.
Fig. 4: Using the instrument for resistance and continuity test measurements
1. Switch on ΩCAP. “Ω” symbol is displayed
2. Insert the test leads into the jacks, the red plug into VΩTempHz%CAP jack and
black plug into COM jack (see Fig. 4)
3. Connect the test leads to the circuit under test. The resistance value is displayed
4. If the message "O.L" is displayed the higher range is reached
5. Pressing the MODE key until the symbol is shown at display to meaning the
Continuity test and connect the meter as resistance measurement. Buzzer emits sound
if the measured resistance value is less about 150Ω
6. For HOLD function please refer to paragraph 4.2
EN - 9
HT210
4.3.4. Diode test
CAUTION
Before taking diode test measurements in circuit remove power from the
circuit being tested and discharge all capacitors.
Fig. 5: Using the instrument for diode test
1. Switch on ΩCAP
2. Pressing the MODE key until the symbol
is shown at display to meaning the diode
test
3. Insert the test leads into the jacks, the red plug into VΩTempHz%CAP jack and
black plug into COM jack (see Fig. 5)
4. Connect the test leads to the diode under test observing the proper polarities indicated
in Fig. 5. The threshold voltage value expressed in mV under this situation is displayed
5. If the threshold voltage value is 0V the diode P-N junction is shorted circuit
6. If the message "O.L" is displayed the diode terminals are reversed, the diode P-N
junction is damaged
EN - 10
HT210
4.3.5. Frequency and Duty Cycle measurements
CAUTION
The maximum input for AC voltage is 250V. Do not attempt to measure
higher voltages to avoid electrical shocks or damages to the instrument.
Fig. 6: Using the instrument for frequency and duty cycle measurements
1. Switch on Hz%. “Hz” symbol is displayed
2. Insert the test leads into the jacks, the red plug into VΩTempHz%CAP jack and
black plug into COM jack (see Fig. 6)
3. Connect the test leads to the circuit under test. The frequency value, with kHz or MHz
units, is displayed
4. If the message "O.L" is displayed the higher range is reached
5. Pressing the Hz% key until the “%” symbol is shown at display to meaning the Duty
Cycle test and connect the meter as frequency measurement. The measured value is
displayed
6. For HOLD function please refer to paragraph 4.2
EN - 11
HT210
4.3.6. Capacitance measurement
CAUTION
Before taking capacitance measurement in circuit remove power from the
circuit being tested and discharge all capacitors. Connect the test capacitor
to the inputs respecting the polarity connections when required.
Fig. 7: Using the instrument for capacitance measurement
1. Switch on ΩCAP
2. Pressing the MODE key until the “nF” symbol is shown at display to meaning the
capacitance measurement
3. Insert the test leads into the jacks, the red plug into VΩTempHz%CAP jack and
black plug into COM jack (see Fig. 7)
4. Press the REL key before start the measurement
5. Connect the red and black test clamps to the capacitor terminals respecting if
necessary the proper polarities. The capacitance value is shown on display
6. If the message "O.L" is displayed the higher range is reached
7. For HOLD function and Relative measurement please refer to paragraph 4.2
EN - 12
HT210
4.3.7. Temperature measurement
CAUTION
Before taking temperature measurements in circuit remove power from the
circuit being tested and discharge all capacitors.
Fig. 8: Using the instrument for temperature measurement
1. Switch on °C or °F depend on the kind of measurement
2. Insert the standard adapter accessory into VΩTempHz%CAP jack (+ polarity), and COM jack (- polarity) (see Fig. 8)
3. Connect the standard bead type K probe or the optional type K probe (see paragraph
6.3.2) into the adapter with respect the correct positive and negative polarity then
temperature reading is displayed
4. If the message "O.L" is displayed the higher range is reached
5. For HOLD function please refer to paragraph 4.2
EN - 13
HT210
5. MAINTENANCE
5.1. GENERAL INFORMATION
This is a precision instrument. To guarantee its performances be sure to use it according to
these instructions and keep it stored on suitable environmental conditions. Do not expose
it to high temperatures or humidity or direct sunlight. Be sure to turn it off after use. If you
expect not to use the instrument for a long period remove batteries to avoid leakages of
battery liquid which could damage the its inner components.
5.2. BATTERY REPLACEMENT
When the “” low battery indication (refer to paragraph 6.1.2) is displayed the battery is
to be replaced.
Before replacing the battery disconnect test leads from any energised
circuits to avoid electrical shocks.
1. Turn off the instrument
2. Disconnect the test leads from the input terminals
3. Remove the fixing screws from the back case and detach it
4. Replace the battery with a new one of the same type (refer to paragraph 6.1.2)
observing the proper polarities
5. Replace the back case and screws
6. Use the appropriate battery disposal methods for your area
5.3. CLEANING
To clean the instrument use a soft dry clothe. Never use a wet cloth, solvents or water.
5.4. END OF LIFE
CAUTION
CAUTION: this symbol indicates that equipment, the battery and its accessories
shall be subject to a separate collection and correct disposal.
EN - 14
HT210
6. TECHNICAL SPECIFICATIONS
6.1. TECHNICAL FEATURES
The accuracy is indicated as [% of reading + number of digits]. It is referred to the
following environmental conditions: temperature 18°C(64°F) ÷ 28°C(82°F), relative
humidity < 70%.
DC Voltage (Autorange)
Range Resolution Accuracy Input impedance Overload protection
4.000V 0.001V
40.00V 0.01V
400.0V 0.1V
600V 1V
AC Voltage (Autorange)
Range Resolution
4.000V 0.001V
40.00V 0.01V
400.0V 0.1V
600V 1V
Frequency range: 50Hz ÷ 400Hz
Resistance (Autorange)
Range Resolution Accuracy Overload protection
400.0Ω 0.1Ω ±(1.2%rdg + 4dgt)
4.000kΩ 0.001kΩ ±(1.0%rdg + 2dgt)
40.00kΩ 0.01kΩ
400.0kΩ 0.1kΩ
4.000MΩ 0.001MΩ
40.00MΩ 0.01MΩ ±(2.0%rdg + 3dgt)
Diode Test
Feature Resolution Accuracy Max open voltage Overload protection
1mV
Continuity test
Feature Buzzer Test current Overload protection
Frequency (Autorange)
Range Resolution Accuracy Sensitivity Overload protection
5.000Hz 0.001Hz
50.00Hz0.01Hz
500.0Hz0.1Hz
5.000kHz1Hz
50.00kHz10Hz
500.0kHz100Hz
5.000MHz1kHz
10.00MHz10kHz
Duty cycle (Autorange)
±(1.2%rdg+2dgt)
±(1.5%rdg+2dgt)
Accuracy
(50 ÷ 400Hz)
±(1.2%rdg+4dgt)
±(1.5%rdg+3dgt)
±(2.0%rdg+4dgt)
±(1.2%rdg + 2dgt)
±(10%rdg + 5dgt)
<150Ω
±(1.5%rdg + 5dgt)
±(1.2%rdg + 3dgt)
±(1.5%rdg + 4dgt)
7.8MΩ
Input impedance Overload protection
7.8MΩ
250VDC/ACrms
circa 1.5VDC 250VDC/ACrms
<0.3mA 250VDC/ACrms
>8Vrms 250VDC/ACrms
600VDC/ACrms
600VDC/ACrms
EN - 15
HT210
Range Resolution Accuracy Sensibilità Overload protection
0.5 - 99% 0.1%
100µs< durata impulso <100ms
Range frequenza: 5Hz ÷ 150Hz
±(1.2%rdg + 2dgt)
>8Vrms 250VDC/ACrms
Capacitance (Autorange)
Range Resolution Accuracy Overload protection
40.00nF 0.01nF
±(5.0%rdg + 7dgt)
400.0nF 0.1nF
4.000µF 0.001µF
±(3.0%rdg + 5dgt)
250VDC/ACrms
40.00µF 0.01µF
100.0µF 0.1µF ±(5.0%rdg +5dgt)
Temperature with type K probe (Autorange)
Range Resolution Accuracy Overload protection
-20°C ÷ 400°C 0.1°C
400°C ÷ 760°C 1°C
-4°F ÷ 752°F 0.1°F
752F ÷ 1400°F 1°F
±(3.0%rdg + 5°C)
250VDC/ACrms
±(3.0%rdg + 9°F)
EN - 16
HT210
6.1.1. Safety
The instrument complies with: IEC/EN61010-1
Insulation: Double insulation
Pollution degree: 2
Overvoltage category: CAT III 600V
Max height: 2000m (6.562 ft)
6.1.2. General data
Mechanical characteristics
Dimensions: 138(L) x 68(W) x 37(H)mm
5.4"(L) x 2.7”(W) x 1.5”(H)
Weight (including battery): 210g (7 ounces)
Power supply
Battery type: 1x9V battery NEDA 1604 IEC 6F22
Indication of low battery: The symbol “” is displayed when the
battery is low
AutoPowerOFF: After 30 minutes of don’t work
Display
Specifications: 4 LCD with max. reading 4000 counts + symbol
This product conforms to the prescriptions of the European directive on low voltage
2006/95/EEC (LVD) and to EMC directive 2004/108/EEC
6.3. ACCESSORIES
6.3.1. Standard accessories
• HT210 meter
• Test leads
• Adapter + type K bead probe
• Battery
• Carrying case
• User manual
• Warranty card
6.3.2. Optional accessories
• Couple of test leads Cod. KIT4000A
• Type K probe for air and gas (-40 ÷ 800 °C) Cod. TK107
• Type K probe for semi solid substances (-40 ÷ 800 °C) Cod. TK108
• Type K probe for liquid (-40 ÷ 800 °C) Cod. TK109
• Type K probe for surfaces (-40 ÷ 400 °C) Cod. TK110
• Type K probe for surfaces with a 90° lead (-40 ÷ 400 °C) Cod. TK111
EN - 17
HT210
7. SERVICE
7.1. WARRANTY CONDITIONS
This instrument is guaranteed against material or production defects, in accordance with
our general sales conditions. During the warranty period the manufacturer reserves the
right to decide either to repair or replace the product.
Should you need for any reason to return back the instrument for repair or replacement
take prior agreements with the local distributor from whom you bought it. Do not forget to
enclose a report describing the reasons for returning (detected fault). Use only original
packaging. Any damage occurred in transit due to non original packaging will be charged
anyhow to the customer.
The manufacturer will not be responsible for any damage to persons or things.
The warranty doesn’t apply to:
• Accessories and batteries (not covered by warranty)
• Repairs made necessary by improper use (including adaptation to particular
applications not foreseen in the instructions manual) or improper combination with
incompatible accessories or equipment
• Repairs made necessary by improper shipping material causing damages in transit
• Repairs made necessary by previous attempts for repair carried out by non skilled or
unauthorized personnel
• Instruments for whatever reason modified by the customer himself without explicit
authorization of our Technical Dept
• Faults due to adaptation to a particular application not provided for by the definition of
the equipment or by the instruction manual
The contents of this manual may not be reproduced in any form whatsoever without the
manufacturer’s authorization.
Our products are patented and our logotypes registered. We reserve the right to
modify specifications and prices in view of technological improvements or
developments which might be necessary.
7.2. AFTER-SALE SERVICE
Shouldn’t the instrument work properly, before contacting your distributor make sure that
batteries are correctly installed and working, check the test leads and replace them if
necessary. Make sure that your operating procedure corresponds to the one described in
this manual.
Should you need for any reason to return back the instrument for repair or replacement
take prior agreements with the local distributor from whom you bought it. Do not forget to
enclose a report describing the reasons for returning (detected fault). Use only original
packaging. Any damage occurred in transit due to non original packaging will be charged
anyhow to the customer.
The manufacturer will not be responsible for any damage to persons or things.
EN - 18
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