Triplett 1201 Instruction Manual

M
odel
Compact Digital
MultiMeter

Instruction Manual

1. Introduction
The Triplett Model 1201 multimeter is a 3 1/2 digit, handheld digital multi-
meter with automatic power off and a backlit LCD display. Using a Large
Scale Integration (LSI) integrated circuit, the multimeter is designed for
stability and accuracy. The resilient outer molded cover provides additional
protection from the occasional fall, and the threaded probe tips and screw
on insulated clips provide for secure, hands-off measurements. The meter
can measure AC and DC voltage, DC current, resistance, temperature, and
forward diode voltage drop. It can also perform an audible continuity test,
and test both 1.5V and 9V batteries.
2. Product Features
1) Test lead holder.
2) Continuity test indicator (red LED).
3) LCD display with (Low Battery) and DH (Hold) annunciators.
4) POWER Button: Press the Power Button to turn the unit on or off.
5) LIGHT Button: Press the "LIGHT" button to turn on the LCD backlight.
The backlight will be automatically turned off after approximately 30
seconds.
5) DISPLAY HOLD Button: Press the "HOLD" key to lock the present value
on the display. The "DH" sign will appear on the display while the hold
function is active. Press it again to exit and resume normal display
updating.
7) Rotary Switch: Use this switch to select test functions and ranges.
8) COM: COM and Temperature "-" Input Jack.
9) 10A: 10A Input Jack, unfused.
10) VΩmA: V/mA/BATT/
200mA, 500V
11) Meter case
12) Protective molded cover
3. Safety Information
3-1 The meter is designed according to IEC-1010 concerning electronic
measuring instruments with an over-voltage category level of 600V
(CAT III) and pollution level 2. DO NOT USE THIS METER FOR CAT
IV APPLICATIONS.
3-2 Follow all safety and operating instructions to ensure that the meter is
used safely and is kept in good operating condition.
3-3 Safety symbols:
Important safety information, refer to the operating manual.
Dangerous voltage may be present.
Double insulation (protection Class II)
4. Cautions and Warnings
4-1 To maintain product safety, use the provided test leads. Damaged test
leads should be replaced with the same model or test leads with the
same electrical specifications.
1201
and Temperature "+" Input Jack, fused at
4-2 Do not use with the battery cover removed.
4-3 Always set the rotary switch to the correct position for measurement.
4-4 Do not exceed the input limits.
4-5 Do not change the rotary switch setting when the leads are connected to
an energized circuit.
4-6 Use caution when measuring voltages higher than 60V DC or 30V AC.
4-7 Replace fuse with fuse of the same rating.
4-8 To conserve battery life, always turn the meter off when measurements
are completed.
5. General Characteristics
5-1 Max Voltage between input terminal and Earth Ground: CAT III 600V
5-2 Over-range Indication: display "1" or "-1" for the most significant digit
5-3 Low Battery Indication:
5-4 Maximum LCD Display: 1999 (3 ½ digits)
5-5 Manual range selection
5-6 Auto Power Off: The meter will switch to standby mode when it has
been on for approximately 20 minutes. Press the "POWER" button twice
to power on the meter again
5-7 Fuse protection: Fast acting 200mA/500V
5-8 Power supply: 9V battery (6F22 or NEDA 1604)
5-9 Operating Temperature: 0°C to 40°C (relative humidity <85%)
5-10 Storage Temperature: -10°C to 50°C (relative humidity <85%)
5-11 Dimension: 150x106x36mm
5-12 Weight: approx. 250g (including battery)
6. Measurement Specifications
Accuracy is specified from 18°C to 28°C (64°F to 82°F) with relative
humidity below 70%.
Range Resolution
2V 1mV
20V 10mV
200V 100mV
600V 1V
Impedance: 10MΩ
Overload protection: 600V DC or AC
Range Resolution
200V 100mV
600V 1V
Impedance: 4.5MΩ
Overload protection: 600V DC or AC rms
Frequency Range: 40 to 400Hz
Response: Average, calibrated equivalent to RMS of sine wave
Range Resolution
200μA 0.1μA
2mA 1μA
20mA 10μA
200mA 100μA
10A 10mA
Overload protection: Fast Acting 200mA / 500V fuse
10A input is not fuse protected. Apply no more than 10A for less than 10 seconds
Range Resolution
200Ω 0.1Ω
2kΩ 1Ω
20kΩ 10Ω
200kΩ 100Ω
2MΩ 1kΩ
Overload protection: 500V AC / DC
Range
°F
-4~302°F
302~1832°F
Thermocouple: NiCr-NiSi K-type (supplied)
Overload protection: Fast Acting 200mA / 500V fuse
is displayed
DC Voltage
Accuracy
±(0.5% of rdg + 2 digits)
±(0.8% of rdg + 2 digits)
AC Voltage
Accuracy
±(1.5% of rdg + 5 digits)
DC Current
Accuracy
±(1.2% of rdg + 2 digits)
±(2.0% of rdg + 3 digits)
Resistance
Accuracy
±(1.0% of rdg + 3 digits)
±(1.0% of rdg + 2 digits)
±(1.5% of rdg + 3 digits)
Temperature
Accuracy
1°F
± ( 5°F+ 2 digits )
± ( 3% of rdg + 3 digits )
Resolution