Sealey TM102 - Manual (Page 4)

4. OPERATING INSTRUCTIONS
Display: ........................................3 ½ digit, 2000 count LCD, 0.5” digits.
Overrange Indication: ..................“OL” is displayed.
Polarity:........................................Automatic: Minus (-) indicator for negative polarity.
Measurement Rate: .....................2 times per second, nominal.
Low Battery Indication: ................“BAT” is displayed if battery voltage drops below operating voltage.
Battery: ........................................9 volt (PP9 type).
Fuses: .........................................0.2A/250V fast blow for the 200mA Range: 10A/250V fast blow for 10A range.
Operating Temperature: ...............32°F to 122°F (0°C to 50°C) at less than <70% Relative Humidity (RH).
Storage Temperature: ..................-4°F to 140°F (-20°C to 60°C) at less than <80% Relative Humidity (RH).
Operating Altitude: .......................7000ft. (2000m) maximum.
Weight: .......................................255g.
Size: ..........................................150mm x 70mm x 48mm.
Function Range Resolution Accuracy
Temperature
Sensor: Type K Thermocouple
Overload protection: 500V dc or ac rms
-50°C ~+1000°C 1°C ±3% reading ± 5 digits
-58°F ~+1832°F 1°F ±3% reading ± 8 digits
Function Test Current Resolution Accuracy
Diode Test
Open circuit voltage: 1.5V dc typical
Overload protection: 500V dc or ac rms.
0.3mA typical 1 mV ±10% reading ± 5 digits
 WARNING! Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be
measured with great care.
ALWAYS turn the function switch to the OFF position when the meter is not in use. The meter has an AUTO POWER
OFF function which will automatically switch the meter off, after 15 minutes of inactivity.
If “OL” appears in the display during a measurement, the value exceeds the range you have selected. Change to a
higher range.
4.1. MODE SWITCH
Selects different Modes according to function selected.
4.2. RANGE SWITCH
The multimeter will automatically select the appropriate range for the measurement being taken using Auto-Ranging.
To manually select a range:
4.2.1. Press the RANGE switch. The “AUTO” display indicator will turn off.
4.2.2. Press the RANGE switch to cycle through the available ranges until you select the range you want.
4.2.3 Switching to another function or holding the RANGE switch down for 2 seconds will switch Auto-Ranging on again.
4.3. DATA HOLD SWITCH
The Data Hold function allows the meter to “freeze” a measurement on the display for later reference.
4.3.1. Press the DATA HOLD switch to “freeze” the reading on the display. The indicator “HOLD” will be appear on the display.
4.3.2. Press the DATA HOLD switch again to return to normal operation.
4.4. MAX HOLD SWITCH
This function allows the maximum reading taken to be held on the display - the maximum reading will
continuously update upwards if readings change. Press the Max Hold switch to set the maximum reading. Press the
Max Hold switch again and the display will return to normal.
(Not applicable with Resistance Measurement, Diode Test, Continuity Test and Temperature Measurement).
NOTE! On some low AC and DC voltage ranges, with the test leads not connected to a device, the display may show a
random reading. This is normal and is caused by the high-input sensitivity. The reading will stabilise and give a proper
measurement when connected to a circuit.
TM102 Issue No: 2(I)- 19/06/14
Original Language Version © Jack Sealey Limited