HT14D
Release EN 1.00 - 26/11/2014
EN - 2
4.3.
DC CURRENT MEASUREMENT
1.
Power off the circuit under test
2.
Switch on the desired measurement range between the options: 2000
A
, 200mA
3.
Insert the test leads into the jacks, the red plug into V
mA
A
jack and black plug into COM jack. Connect the red and the black
plugs in series with the circuit whose current is to be measured respecting the polarities. Energize the circuit under test. The
current value will be displayed. Press the HOLD key to fix the result at display. The symbol "-" on the instrument display indicates
that current has opposite direction with regard to the connection performed
4.
If the message "OL" is displayed the higher range is reached
4.4. RESISTANCE
MEASUREMENT
1.
Switch on the desired measurement range among the options: 2000k
, 200k
, 20k
, 2000
, 200
2.
Insert the test leads into the jacks, the red plug into V
mA
A
jack and black plug into COM jack and connect the red and black
test leads to the circuit under test. The resistance value is displayed. Press the HOLD key to fix the result at display
3.
If the message "OL" is displayed the higher range is reached
4.5. DIODE
TEST
1.
Switch on the position
1.
Insert the test leads into the jacks, the red plug into V
mA
A
jack and black plug into COM jack and connect the red test lead
and the black test lead on the anode and cathode of the diode respectively. The threshold voltage value (mV) is displayed
2.
If the message "OL" is displayed the diode terminals are reversed or the diode P-N junction is damaged
4.6. BATTERY
TEST
1.
Switch on the position 9V BATTERY
2.
Insert the test leads into the jacks, the red plug into V
mA
A
jack and black plug into COM jack and connect the red test lead
and the black test lead on positive and negative pole of a 9V (IEC 6F22) battery respectively. The voltage value is displayed
5. BATTERY
REPLACEMENT
1.
Turn off the instrument by means ON/OFF key
2.
Disconnect the test leads from the input terminals
3.
Remove the fixing screw from the battery cover and detach it
4.
Replace the battery with a new one of the same type (12V MN21) observing the proper polarities
5.
Replace the battery cover and screw
6.
Use the appropriate battery disposal methods for your area
6. INTERNAL
FUSE REPLACEMENT
1.
Turn off the instrument by means ON/OFF key
2.
Disconnect the test leads from the input terminals
3.
Remove the fixing screws from the back case and detach it
4.
Replace the fuse with a new one of the same type (200mA/600V, Fast)
5.
Replace the back case and screws
7. TECHNICAL
SPECIFICATIONS
The accuracy is indicated as [% rdg + (num. dgt* resolution)] at 18°C
28°C, <75%RH
Function Range
Resolution
Accuracy
Overload
protection
DC Voltage
200.0mV 0.1mV
±(0.5%rdg + 2 dgt)
200Vrms
2000mV 1mV
500V DC/AC
20.00V 0.01V
200.0V 0.1V
500V
1V
±(0.5%rdg + 4 dgt)
AC Voltage
(50/60Hz)
200.0V 0.1V
±(1.2%rdg + 10dgt)
500V AC
500V 1V
DC Current
2000
A 1
A
±(1.2%rdg + 2 dgt)
Fuse fast 200mA/600V
200.0mA
0.1mA
±(1.5%rdg + 2 dgt)
Resistance
200.0
0.1
±(0.8%rdg + 4 dgt)
250Vrms for 15s max
2000
1
20.00k
0.01k
200.0k
0.1k
2000k
1k
±(1.5%rdg + 2 dgt)
Battery test
9V
10mV
±(1.2%rdg + 2 dgt)
8. GENERAL
SPECIFICATIONS
Input impedance:
1M
Diode test:
Max test current 1mA, open voltage 2.8V DC (typical)
Over range indication:
“OL” symbol at display
Display:
LCD, 3½ dgt, 2000 symbol and decimal point
Sampling rate:
2 times/second
Low battery indication:
“BAT” symbol at display
Power supply:
1x12V battery type MS21 / MN21
Protection fuse:
Fast, 200mA/600V, 5x20mm (“mA” and “
A” inputs)
Safety: IEC/EN61010-1
Insulation: double
insulation
Pollution degree:
2
Measurement category:
CAT III 300V, CAT II 600V
Max height of use:
2000m (7000ft)
Dimensions (L x W x H):
105 x 50 x 25mm (4 x 2 x 1in)
Weight (included battery):
100g (4 ounces)
Standard accessories:
couple of test leads, battery, user manual
