The 1630-2 FC clamp measures earth ground loop resistances for multi-grounded systems using the dual-clamp jaw. This test technique eliminates the dangerous and time-consuming activity of disconnecting parallel grounds, as well as the process of finding suitable locations for auxiliary test stakes. You can also perform ground tests in places that were previously difficult: inside buildings, on power pylons or anywhere you don't have access to soil to place auxiliary test stakes.

Earth ground ac leakage current measurement

• Identify ac leakage currents without disconnecting the earth ground stake from the grounding system–ideal for system troubleshooting.
• Rugged heavy-duty clamp jaw stays in alignment and in calibration even in every day, on-the-job industrial environments.

Logging measurements

• The earth ground clamp saves time by automatically recording data at pre-set intervals
• Saves up to 32,760 measurements in memory at the set logging interval.
• Saves time by recording and storing measured values.
  
  

  Specifications: Fluke 1630-2 FC Earth Ground Clamp

  Electrical Specifications
  Maximum voltage to earth ground	1000 V
  Battery type	AA alkaline IEC/EN LR6 (x4)
  Battery life	More than 15 hours*
  * In Ground Resistance measurement mode, with backlight turned off, and RF mode turned off
  Frequency range	40 Hz to 1 kHz
  Ingress protection	IEC/EN 60529: IP30 with jaw closed
  LCD	Digital reading	9999 counts
  	Refresh rate	4 per second
  Operating temperature	-10 °C to + 50 °C
  Storage temperature	-20 °C to + 60 °C
  Operating humidity	Non condensing (<10 °C) (< 50 °F)
  	≤90% RH (at 10 °C to 30 °C [50 °F to 86 °F])
  	≤75% RH (at 30 °C to 40 °C [86 °F to 104 °F])
  	≤45% RH (at 40 °C to 50 °C [104 °F to 122 °F])
  	(Non condensing)
  Operating altitude	2000 m (6561 feet)
  Storage altitude	12 000 m (39,370 feet)
  Reference temperature	23 °C ±5 °C (73 °F ±9 °F)
  Temperature coefficient	0.15% x (specified accuracy)/ °C (<18 °C or >28 °C [<64.4 °F or >82.4 °F])
  Overload indication	OL
  Data logging capacity	Minimum of 32,760 measurements
  Data logging interval	1 second to 59 minutes and 59 seconds
  Display reading specification with standard loop resistance
  Input (Ω)	Minimum	Maximum
  0.474	0.417	0.531
  0.5	0.443	0.558
  10	9.55	10.45
  100	96	104
  Safety
  General	IEC/EN 61010-1: Pollution Degree 2 IEC/EN 61557-1
  Measurement	IEC/EN 61010-2-032: CAT IV 600 V / CAT III 1000 V
  Current clamp for leakage current measurements	IEC/EN 61557-13: Class 2, ≤30 A/m
  Resistance to earth	IEC/EN 61557-5
  Effectiveness of thepProtective measures	IEC/EN 61557-16
  Electromagnetic compatibility (EMC)	International	IEC/EN 61326-1: Portable Electromagnetic Environment
  		CISPR 11: Group 1, Class B, IEC/EN 61326-2-2
  	Korea (KCC)	Class A equipment (Industrial Broadcast & Communications Equipment)
  	USA (FCC)	47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103
  Wireless Radio
  Frequency range	2412 MHz to 2462 MHz
  Output power	<10 mW
  Radio frequency certification	FCC ID:T68-FBLE IC:6627A-FBLE
  General Specifications
  Conductor size	40 mm (1.57 in) approximately
  Dimensions (L x W x H)	283 x 105 x 48 mm (11.1 x 4.1 x 1.9 in)
  Weight	880g (31 oz)
  Warranty	One year
  Earth Ground Loop Resistance
  Range	Accuracy1  ± (% of reading + Ω)
  0.025 Ω to 0.249 Ω	1.5% + 0.02 Ω
  0.250 Ω to 0.999 Ω	1.5% + 0.05 Ω
  1.000 Ω to 9.999 Ω	1.5% + 0.10 Ω
  10.00 Ω to 49.99 Ω	1.5% + 0.30 Ω
  50.00 Ω to 99.99 Ω	1.5% + 0.50 Ω
  100.0 Ω to 199.9 Ω	3.0% + 1.0 Ω
  200.0 Ω to 399.9 Ω	5.0% + 5.0 Ω
  400 Ω to 599 Ω	10.0% + 10 Ω
  600 Ω to 1500 Ω	20.00%
  1  Loop resistance with no inductance, conductor centered and perpendicular to jaw
  Earth ground leakage current mA
  Autorange 50/60 Hz, True rms, crest factor CF ≤3
  Range	Resolution	Accuracy1  ± (% of reading + mA)
  0.200 mA to 3.999 mA	1 μA	2.0% + 0.05 mA
  4.00 mA to 39.99 mA	10 μA	2.0% + 0.03 mA
  40.0 mA to 399.9 mA	100 μA	2.0% + 0.3 mA
  0.400 A to 3.999 A	1 mA	2.0% + 3 mA
  4.00 A to 39.99 A	10 mA	2.0% + 30 mA
  1 Applies to signal frequency 40 Hz to 1 kHz with filter set to OFF 40 Hz to 70 Hz with filter se to ON