4
DUTY CYCLE (0.5Hz to 1KHz)
Ranges: 10.0% to 90.0%
Accuracy: ±(2.0%dgt + 5dgts) @ 2Vrms min (TTL level)
Overload protection: 500VDC or AC rms
PULSE WIDTH (1Hz to 1KHz) (Auto range)
Range: 20.00ms, 200.00ms, 2000.0ms
Sensitivity: 2.0Vrms (TTL level)
Accuracy: ±(3.0%rdg + 1dgt)
Overload protection: 500VDC or AC rms
LOGIC TEST
Threshold:
Logic Hi (
S
): 2.8±0.8V
Logic Lo (
T
): 0.8±0.5V
Frequency response: 20MHz
Overload protection: 500VDC or AC rms
CAPACITANCE (Auto range)
Cx
Range: 2000pF, 20nF, 200nF, 2uF, 20uF
Accuracy: ±(2.0%rdg + 10dgts)
F
Range: 200uF, 2mF, 15mF (Max measurement time 20 sec.)
Accuracy: ±(5.0%rdg + 5dgts)
Overload protection: 500mA/250V
TEMPERATURE (T1 / T2 / T1-T2)
Range: -50°C to 1300°C / -58°F to 2000°F
Resolution: 0.1 °C / °F
Accuracy: ±(0.1%rdg + 1°C) or
±(0.1%rdg + 2°F) on T1, T2 ranges
13
6.1.7 “SELECT”:
Selection Temperature Unit (°C or °F):
Rotary Switch points to the positions T1, T2 or T1-T2. The annunciator of temperature unit °C
and °F shows at upper right corner of LCD. Press this button to toggle between °C and °F.
Switch to Adapter Function:
For adaptors with DC output:
Point Rotary Switch to the positions 2000mV and Select “DC” (see 5.2). One of the
annunciators “mV”, “A”, “°C” or “°F” shows at right hand side or upper-right corner of LCD.
When “mV” shows the meter is in the range of DC 2000 mV. When one of “A”, “°C ” or “°F ”
shows, the meter is in Adaptor Mode, to measure DC Current with an inductive current clamp
adaptor or Temperature with a Temperature Transducer plug in the jacks of V
Ω
and COM.
Press this button to move among the functions of “mV”, “A”, “°C ” or “°F”. There are 3
ranges in Adaptor Current Measurement. Press the “SELECT” button at DC mV to enter first
range XXX.X A. In this range the display shows 1.0 A per 1mV DC input from the “V
Ω
” and
“COM” jacks. Press “SELECT” button again to enter 2
nd
range, decimal point move to
between 2
nd
and 3
rd
digits (XX.XX A), display shows 0.1 A per 1mV DC input. One more
press on “SELECT” button to enter 3
rd
range, decimal point move to between 1
st
and 2
nd
digits
(X.XXX A), display shows 0.01 A per 1mV DC input.
For adaptors with AC output:
Point Rotary Switch to the positions 2000mV and Select “AC” (see 5.2). The annunciators
“mV” or “A” shows at right-middle of LCD. When “mV” shows, the meter is in the range of
AC 2000 mV. When “A” shows, the meter is in Adaptor Mode, to measure AC Current, plug
the plugs of the Adaptor into the “COM” and “V
Ω
”. Press this button to move from “mV” to
“A”, press the button 3 times to move from “A” back to “mV”.
Switch to “Current Loop” function:
Point Rotary Switch to the positions 200mA and Select “DC” (see 5.3). If the annunciator
“mA” shows at right-middle of LCD the meter is in the range of DC 200 mA. Press this button
to switch to Current Loop function. The right-middle of the LCD shows nothing in the Current
Loop function.. Press this button again to switch back to DC 200 mA function.
Switch to “Continuity Test” Function:
Rotary Switch points to the position of “200
Ω
”. Press this button to toggle between 200
Ω
and
continuity test. The annunciator of
shows at lower-left corner of LCD when in the
“Continuity Test” In this function beeper alarms when the resistance of measured object is
lower than 30
Ω
.
Switch among “Frequency”, “Duty Cycle” and “Pulse Width” Functions:
Rotary Switch points to the position “Hz” (Frequency). Press this key each time to change
among the functions of “Frequency” (“Hz” shows at upper-right corner of LCD), “Duty cycle”
(Nothing in the right side of LCD) and “Pulse Width” (“m” shows in the right-middle of
LCD).
