Relative Humidity - RS Pro RS-660 Manuel D'instructions

Compact Digital Multimeter / English
Diode Test Test current of 1 mA maximum, open circuit voltage 2 V
DC typical
Continuity Check Audible signal will sound if the resistance is less than
approximately 100Ω
Battery Test current 9 V (6 mA); 1.5 V(100 mA)
Input Impedance >1 MΩ
ACV Bandwidth 50 Hz to 60 Hz
DCA voltage drop 200 mV
Display 3 ½ digit, 2000 count LCD, 1.1 digits
Overrange indication "OL" is displayed
Polarity Automatic(no indication for positive polarity); Minus(-) sign
for negative polarity.
Measurement Rate
2 times per second, nominal
Low Battery Indication " " is displayed if battery voltage drops below operating
voltage
Battery One 9 V(NEDA 1604) battery
Fuses mA, μA ranges; 0.2 A/600 V fast blow A range; 10 A/600
V fast blow
o o
Operating Temperature 32 F to 122 F (0
Storage Temperature o o
-4 F to 140 F (-20

Relative Humidity

<70% operating, <80% storage
Operating Altitude 7000 ft. (2000)meters maximum.
Safety
For indoor use and in accordance with Overvoltage
Category II, Pollution Degree 2. Category II includes local
level, appliance, portable equipment, etc., with transient
overvoltages less than Overvoltage Category III.
5-1.Battery Installation
WARNING: To avoid electric shock, disconnect the test leads from any source of
voltage before removing the battery door.
• Disconnect the test leads from the meter.
• Open the battery door by loosening the screw using a Phillips head screwdriver.
• Insert the battery into battery holder, observing the correct polarity.
• Put the battery door back in place. Secure with the screw.
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o o
C to 50 C)
o o
C to 60 C)
02/01/2018 Version No. 001
WARNING: To avoid electric shock, do not operate the meter until the battery door is
in place and fastened securely.
NOTE: If your meter does not work properly, check the fuses and batteries to make sure
that they are still good and that they are properly inserted.
6. Operating Instructions
6-1 Data Hold Button
• The Data Hold function allows the meter to "freeze" a measurement for later reference.
• Press the DATA HOLD button to "freeze" the reading on the indicator. The indicator "H"
will be appear in the display.
• Press the DATA HOLD button to return to normal operation.
6-2 Back Light Button
• The BACK LIGHT button is used to turn the back light on or off. Press the BACK LIGHT
BUTTON to turn the back light on.
• Press the BACK LIGHT BUTTON to turn the back light off.
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.
• If "OL" appears in the display during a measurement, the value exceeds the range you
have selected. Change to a higher range.
NOTE: On some low AC and DC voltage ranges, with the test leads not connected to a
device, the display may show a random, changing reading. This is normal and is caused by
the high-input sensitivity. The reading will stabilize and give a proper measurement when
connected to a circuit.
6-3 DC Voltage Measurements
CAUTION: Do not measure DC voltages if a motor on the circuit is being switched
ON or OFF. Large voltage surges may occur that can damage the meter.
• Set the function switch to the highest V DC position.
• Insert the black test lead banana plug into the negative (COM) jack. Insert the red test
lead banana plug into the positive (V) jack.
02/01/2018 Version No. 001
Compact Digital Multimeter / English
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