Handheld Digital MultimetersREED
REED ST-118 Features
- 3-1/2 digit (2000 count) LCD display
- Built-in non-contact AC voltage detector plus flashlight
- Double Molded housing
- CATIII 1000V
- 200mA/500V Resettable Fused current inputs and overload protection on all ranges
- Autoranging with auto power off
REED ST-118 Specifications
- MAX INPUT VOLTAGE 600V AC/DC
- DIODE TEST Test current 1mA max., open circuit voltage of 1.5V typical
- CONTINUITY CHECK Audible signal if the resistance is <150O
- DISPLAY 2000 count 3 -1/2 digit LCD
- OVER RANGE INDICATION LCD displays “OL”
- POLARITY Minus (-) sign for negative polarity.
- LOW BATTERY INDICATION “BAT” symbol indicates low battery condition.
- INPUT IMPEDANCE >7.5MO (VDC & VAC)
- AC RESPONSE Average responding
- ACV BANDWIDTH 50Hz to400Hz
- AUTO POWER OFF 15 minutes (approximately)
- FUSE mA, µA ranges; 0.2A/500V fast acting Resettable Fuse
- BATTERIES Two 1.5V AAA
- OPERATING TEMPERATURE 32°F to 104°F (0°C to 40°C)
- STORAGE TEMPERATURE 14°F to 122°F (-10°C to 50°C)
- WEIGHT 145g
- SIZE 104 x 55 x 32.5mm
- STANDARD IEC1010 CAT III 1000V Pollution degree II, CE Approved
How to use Reed Handheld Digital Multimeters (ST-118)
Non-Contact AC Voltage Measurements
Touch the probe tip to the hot conductor or insert into the hot side of the electrical outlet. If AC voltage is present, the detector light will illuminate. The conductors in electrical cord sets are often twisted. For best results, rub the probe tip along a length of the cord to assure placing the tip in close proximity to the live conductor. The detector is designed with high sensitivity. Static electricity or other sources of energy may randomly trip the sensor. This is normal operation.
AC/DC voltage measurements
Set the function switch to the green V position. Press the MODE button to indicate “DC” or “AC” on the display. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit. Read the voltage in the display.
AC/DC current measurements
Set the function switch to the µA/mA position. For current measurements up to 2000µA DC/AC, set the function switch to the mA position. Press the MODE button to indicate “DC” / “AC” on the display. 4. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit. Apply power to the circuit. Read the current in the display.
Set the function switch to resistance check the position. Press the MODE button to indicate O on the display. Touch the test probe tips across the circuit or part under test. It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading. Read the resistance in the display.
Set the function switch to the continuity check position. Press the MODE button to indicate on the display. Touch the test probe tips to the circuit or wire you wish to check. If the resistance is less than approximately 150O, the audible signal will sou
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