Section 2800: Meters

CM-600 features:

• Both AC amperage and voltage measurement
• Resistance measurement up to 2k
• Auto power off for longer battery life

Specifications:

• AC Amperage Range: 0.1-600A
• Voltage Range: 1-600VAC
• Display: 3-1/2-digit LCD, 2000-count
• Jaw Opening: 1.38"
• Overvoltage Protection: IEC 61010-1 Category III, 600V

DM-800 features:

• Autoranging, 3-5/6-digit, 5000-count display for greater accuracy
• Frequency and capacitance measurements plus diode and continuity tests standard
• Data hold to capture measurements
• RS-232 capable, may be connected to a PC for extended measurement capability with optional optically-isolated interface DMSC-8L, purchased separately
• Low ohm range calibration, substracts test lead resistance
• Backlit display for easy viewing

DM-810 also features:

• True RMS for no-compromise accuracy

DM-820 also features:

• Record max, min, and max-min readings
• Crest capture (5ms peak hold) max, min, and max-min readings
• Relative offset display mode to see relative changes in measurements
• Temperature measurement standard

Accessories included: (1) 9V battery, carrying case (DM-820, DM-810), bead temperature probe (DM-820 only, 400ºF/204ºC max), test leads.

Specifications:

• Voltage Measurement: 50.00, 500.0mV; 5.000, 50.00, 500.0, 1000V
• Amperage Measurement: 500.0, 5000A; 50.00, 500.0mA; 5.000, 10.00A
• Resistance: 50.00, 500.0; 5.000, 50.00, 500.0k; 5.000, 50.00M
• Capacitance: 50.00, 500.0nF; 5.000, 50.00, 500.0, 9999F
• Frequency: 10Hz - 125kHz
• Temperature: K type, -58°F to 1832°F
• Measurement Category: Cat IV, 600V per IEC 61010-1; Cat III, 1000V per UL 3111-1

*Includes Certificate of Calibration

Compartment for storage of current clamp or other accessories along with meter.

Fluke(Wavetek) Models also available:

HD110
HD110T
CR50
LCR55

Shrouded 90° banana plug, PVC insulated, (1 red, 1 black).

Voltage Detectors are used to verify live or de-energized conductors. These testers may be used with rubber insulating gloves or hot sticks using the splined universal end fitting. Each tester has a 4.5 volt transistor amplifier with a audio/visual indicator. It is recommended that the tester be moved closer to conductor until warning is indicated, or it touches conductor, apparatus, or test point. Test the unit on a nearby conductor to get verification of "dead." Each tester includes three "C" batteries.

Warning: Do not assume conductors are dead or will remain de-energized. Always install proper grounding devices before working conductors.

This smart new-generation instrument makes hot-line voltage testing easier than ever. Its state-of-the-art electronics eliminate the need for a selector switch. Its automatic-ranging function quickly displays the approximate line-to-line voltage class. It provides an easy, yet reliable means for the operator to determine if a line is: A) De-energized B) Carrying less than normal system voltage from any source or induced charge from an adjacent live circuit C) Energized at full system voltage. Simple to operate, the tester attaches to an Epoxiglas® insulating universal handle of appropriate length to maintain proper OSHA working clearances. A single pushbutton activates the instrument, then a single light indicates either Power On (by glowing solid) or Low Battery (by blinking). With a good battery condition, the instrument performs a confirming self-test by illuminating each of the six indicator lights in series while emitting an alternating audible signal. Then the probe can be brought into contact with the conductor. It automatically begins detecting at approximately 480 Volts and holds the display of one of these voltage classes: 600V, 4kV, 15kV, 25kV, 35kV or 69kV phase-to-phase. The audible signal begins as a slow beeping that becomes faster as the final reading is displayed. When not in use, the unit's energy-saving Sleep mode automatically conserves the battery. For overhead testing, a Shepherd Hook probe is included with the ARVI (Auto-Ranging Voltage Indicator). For underground testing, order as a separate item Bushing Adapter T403-0857. It simply threads onto the ARVI in the field to check for voltage at switch bushings and on cables, using a feed-thru device.

To confirm that a line is de-energized prior to performing maintenance on it, the Multi-Range Voltage Detector (MRVD) presents field practicality. Actually a field intensity meter, The MRVD is calibrated to read approximate line-to-line voltage when connected to any phase conductor. It responds to the magnitude of the field gradient between its end probe and floating electrode. If the universal fitting is close to a ground, another phase or another voltage source, the reading should tend to be high: if it's close to a jumper or equipment of the same phase, the reading should be low.

The MRVD gives metered readout capable of distinguishing actual line voltage from static or feedover from an adjacent line. Readings from an MRVD can be compared with numerical certainty rather than the subjective judgements associated with "fuzz-sticking" or "glow-detecting." Since the MRVD is not a voltmeter, no specific accuracy is claimed by the manufacturer or can be assumed by the user.

*For testing URD elbows with test points, only model C403-0979 on this page includes straight probe and "TP" setting on selector switch (as well as hook probe for overhead uses).

This Multi-Range Voltage Detector (MRVD) tests both overhead and underground distribution systems in voltage classes from 5 through 40 kV. This model provides an easy, yet reliable means for the operator to determine if a line is:

A) De-energized, or

B) Carrying less than normal system voltage from any source or induced charged from an adjacent live circuit, or

C) Energized at full system voltage.

For this basic function, this model adapts to both overhead lines as well as URD circuits with 200 Amp loadbreak elbows, including those with and without capacitance test-points. Interchangeable probes and adapters just thread into the MRVD end fitting and the selector switch dials to the voltage range or test point setting appropriate to each application. Furnished owner's manual illustrates operating details for all models.

Chance Phasing Testers easily determine phase relationships and approximate voltage, line-to-line or line-to-ground. Each tester consists of two fiberglass poles with end fittings threaded for interchangeable probes. The probe fittings couple with a high-impedance component encased in each pole. To complete the test circuit, a 22-foot length of insulated flexible cable stores on the reel affixed to one pole and connects to the voltmeter on the other pole. Simple to operate, the probes can be brought into contact with the conductors appropriate for the meter to read phase-to-phase or phase-to-ground voltage.

Display with backlight, hold, sleep modes

Large direct-reading of Chance Digital Phasing Testers easily determine phase relationships and approximate voltage, line-to-line or line-to-ground.

Each tester consists of two fiberglass poles with end fittings with a high-impedance component encased in each pole. To complete the test circuit, a 22-foot length of insulated flexible cable stores on the reel affixed to one pole and connects to the electronics display module on the other pole.

Simple to operate, the tester attaches to two 6-foot Epoxiglas® insulating universal handles. Then the probes can be brought into contact with the conductors appropiate for the tester to display phase-to-phase or phase-to-ground voltage.

Pushbutton controls permit easy selection of options for display Backlight and Hold features. When not in use, the unit's Sleep mode automatically conserves the battery.

Hi-pot and higher voltage accessories

For underground cable hi-pot testing, the 16kV Kit includes a DC Hi-Pot Adapter. Hi-pot testing cannot be done with the 40 kV unit. Both the 16 kV and 40 kV Kits include underground bushing and elbow adapters. For overhead subtransmission systems, Extensions Resistors are available as accessories specific to each Digital Phasing Tester.

Basic Units:

Each Basic Unit Digital Phasing Tester includes the tester unit with meter and reel poles, a pigtail hook probe, a sheperd hook probe, instruction manual and hard shell padded case.

• Instrument for: Circuit Phasing/Potential Testing and URD Cable Testing
• Circuit Potential Testing - The digital high voltage meter can be used for measuring high voltage on cable
• This includes phase to phase and phase to ground 0-40 kV
• Voltages up to 240 kV can be obtained in 40 kV increments with add on resistors Cat. No. 6703
• Comes complete with carrying case, battery and instructions

Extended Voltage Ranges for Phase-Tell (Cat. No. 6702):

The Phase-Tell may be used on voltages higher than 40 kV phase to phase with additional pairs of extension resistors (Cat. No. 6703).

These extensions resistors MUST be used in pairs to increase the voltage ranges. The multiplying factors and ranges are as follows:

  Number of                        Multiplying                                       Range

Resistor Pairs                       Factor

       0                                        1                                                40 kV

       1                                        2                                                80 kV

       2                                        3                                                120 kV

       3                                        4                                                160 kV

       4                                        5                                                200 kV

       5                                        6                                                240 kV

Positive, Straightforward Sequence Indication is Provided over a wide range of voltage and frequency by direction of rotor rotation. No need for range swithching or terminal changing Also indicates an open phase.

The Knopp Phase Sequence Indicator includes a three-phase induction motor having an aluminum-disc rotor mounted for free rotation on a cushioned glass-hard bearing and having field windings placed at 120 geometrical-degree intervals about the rotor axis. One terminal of each winding is extended beyond the case to a distincity colored conductor and to a lettered test clip for attachment to one conductor of the tested system; and the second terminal of each winding is connected to one of three contacts of the insulated protector -switch. The protector-switch must be held closed to energize the windings and is so arranged that accidental or even continuous closure of the switch is unlikely.

The flexible cable withstands severe handling and is intended for suspending the instruments from the line wires or terminals with the test clips. The free ends of the conductors are shorter than the sheathed portion so that, when the instrument is suspended, a detached clip cannot contact the operator while the switch is closed. Since the cable is anchored in the sealed housing, clockwise rotation of the rotor always means that the phase order of the tester terminals is that of the marks A, B, C, on the clips attached therto.

Specifications for Models K-3 & K-6:

• Lead Length: 36"
• Dimensions Diameter: 3-1/4"
• Dimensions Thickness: 1-5/8"

Instead of you manipulating a hinged or clamp-type inductive pick-up, the patented LoadLooker electronically closes the loop for you. Its unique U-shape jaw senses the amperage present between its tines. The open-end design lets you check loads on components not accessible by other hot-line ammeters. Live-line-ready hotstick mount A standard fitting on the LoadLooker lets it mount on your insulated hotsticks just as any other universal tool. Your hot-line crews can begin using it immediately, in compliance with prescribed safe-working clearances for your system voltages. Simple pushbutton operation, direct-reading accuracy A single button controls the operation. Push it once to turn on the LoadLooker. Push it a second time and LoadLooker will display the word HOLD and continue to display the next reading it "sees" until you push the button to clear it. This lets you bring it down from the line to eye level to read it. After five idle minutes, the unit will itself turn off or you can manually turn it off by keeping the button depressed for five seconds. A detailed Operators Manual and storage case are included with each LoadLooker.

Specifications for both MEAMP11RW &MEAMP21RW:

• Amperage: Up to 2,000 Amps
• Reading Type: True RMS
• Jaw Size: Wide
• Weight: 3.1 lbs.

Handy Geo

• Indicates problems on secondary service
• Detects open neutral quickly, accurately
• Isolates and identifies overhead or underground complaints on utility side
• Verfies condition of secondary conductors and associated connections
• Now available in two models: analog and digital meters

TILT II™

 

The TILT II or Transformer Initial Livening Tester is a versatile tool for quick and easy checks of transformers and the connections made to them. In the field, the TILT II is used to test the primary and secondary sides of new or reworked, single or three phase transformer installations for short circuits prior to energizing. The TILT II can test the secondary sides of transformers and all the connections made to them, up to and including the meter, prior to energizing. Unlike a simple ohmmeter, the TILT II can differentiate a true short from the low resistance of a transformer winding.

 

Catalog#
TILT II

Quick-Check

 

The Quick-Check performs all of the transformer tests of the TILT II and also test capacitors and capacitor banks. The Quick-Check uses the same single push-button operation as the TILT II and automatically distinguishes between transformers and capacitors. The Quick-Check tests capacitors individually or connected in capacitor banks. Capacitors and capacitor banks are tested for both opens and shorts. The Capacitor OK indication confirms that all connections are OK and that the capacitors are not shorted or open.

 

Catalog#
Quick-Check

Self-contained, portable convenience

This tester provides an easy way for an electric utility to check the resistance in protective grounding sets used by line personnel. Powered by 120 VAC, the tester applies Direct Current across the test specimen. A seven-minute videotape, included with each unit, shows how simple the tester is to use. Procedure details are given in the instruction manual. All components store in the tester's integral carrying case.

Simple, one-button testing

From pushing a single button, the digital display shows the resistance measured in milliohms compared with a preset threshold for the size grounding cable selected (#2, 1/0, 2/0 or 4/0). A green "Pass" or red "Fail" light also indicates the test result's relation to the threshold.

For system-specific requirements, the user can easily change the Tester's basis for voltage allowed across a lineworker, which comes factory preset at 50 Volts. Adjusting this limit automatically causes a corresponding shift in the resistance thresholds for all the grounding cable sizes.

Regardless of the voltage-allowed setting or cable size selected, the Tester displays the resistance of each specimen in milliohms with ±1% accuracy, from 1 micro-ohm to 6.5 ohms.

The utility must establish the maximum resistance allowed for protective grounding sets used on each specific area of its systems. How the utility calculates these values depends on several factors outlined in the

Tester instructions. Sample calculations with reference tables and charts are given in the manual.

Troubleshooting mode

If a ground set does not pass the initial test, the Tester can help isolate the problems. Often, the source of high resistance can be remedied by simple repairs to the cable set. Retesting then can quickly verify the effects of repairs.

For the troubleshooting mode, a pair of test probes are furnished to plug into the Tester. A switch activates them instead of the ball-stud terminals. The probes then are used to test across contact interface in theground set. The results display in milliohms, just as in the first test mode.

Optional terminals for special ground sets

The tester's standard ball-stud terminals accept most types of ground clamps, including Chance ball-socket clamps.

To test special-application grounding sets for underground-distribution transformers or switchgear, two optional adapters, shown below are available as separate items.

Included with each Tester:

• Self-contained carry case
• Ball-stud terminals (2)
• VHS demo videotape
• Instruction manual
• Troubleshooting probes (2)
• Self-test cable

• Powered by a standard 115V AC outlet rated at 10 amps or higher
• Digital ammeter allows operator to easily apply the correct test current
• Easy-to-read reference chart is provided to show maximum acceptable voltage drop for different cable lengths and gauges
• Cable is tested at its rated continuous current per ASTM F-855
• Grounding jumper need only be measured to the nearest foot
• Digital voltmeter clearly informs operator if the assembly is in acceptable working condition
• Easily converts or testing or grounding elbows, ball socket clamps