Amptec Research 620LK Посібник з монтажу, експлуатації та технічного обслуговування - Сторінка 5
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620LK Operation and Maintenance Manual – Rev. J – Updated January 2020
SECTION B: 620LK SPECIFICATIONS
B-1 Specifications for AMPTEC 620LK Bonding Milliohmmeter
Resistance Range/Resolution/Accuracy:
RANGE
NOMINAL CURRENT
RESOLUTION
ACCURACY
Calibration: It is recommended that the product is calibrated in 1 year intervals. See
section E-7 on page 15 for calibration instructions.
Dimensions: 7.69" W x 7.56" D x 3" H.
Hazardous Use Locations: Unit is independently UL-913 approved for use in Class 1,
Division 1, Groups A, B, C, and D locations from -20° C to 50° C, as well as MIL. STD.
810 MTD. 511 approved for use in explosive and volatile fuel atmospheres.
Instrument Display: Display is 20,000 counts, 4 ½ digit liquid crystal display with a
back light that indicates autolock. See section D-2.7 on page 9 for additional information
about the autolock feature.
Low Battery Indication: Display shows "LO BAT".
Measurement Update Rate: Appox. 3 readings per second.
Open Circuit Current Source Compliance Voltage: ~5.0 VDC
Over-Range Indication: Display shows "1 - - - -" and ">>>OR".
Power: Disposable AA alkaline batteries inside separate chemical and F.O.D. resistant
metal battery box. 4 batteries power the unit, and are 1.5 VDC AA alkaline type Duracell
MN1500. Do not mix battery brands and always replace all batteries at same time. See
section E-9.1 on page 17 for instructions on battery changing.
Temperature Range: Unit can operate from -20° C to 40° C at rated accuracy. Unit can
be stored from -20° C to 70° C.
Page 5
200 mΩ
100 mA
0.01 mΩ
± 0.05% of reading
13231 Rooster Springs Rd.
Austin, TX 78737
T: (512) 858-4045 E: [email protected]
2 Ω
100 mA
0.1 mΩ
± 0.05% of reading
amptec.com