HIGH VOLTAGE VOLTAGE DIVIDERS AND PROBES - Spectroscopic

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OUTDOOR VD SERIES These models are designed to be weatherproof for indoor/outdoor use up to 1000KV DC or AC PK. They are compensated resistance-capacitance wideband DC to 1MHz and are balanced to provide safe voltage gradients with low capacitance, better high frequency accuracy (if calibrated for proximity effects), and low corona. The use of low-loss precision ceramic capacitors and exceptionally stable metal film or wire wound resistors results in stability and accuracies of 0.01% to 3% with temperature coefficients typically less than 3 PPM/°C to 40 PPM/°C and voltage coefficients from very low to zero. Applications include use with panel meters, power quality recorders, digital voltmeters, oscilloscopes or computers to measure, view and record DC, AC, transient pulse or pulse train and modulated CW. Ross Engineering Corp. dividers can be used in conjunction with Ross Engineering Corp. AC or AC/battery operated fiber optic systems or 50 or 75 ohm matching amplifier/coaxial cable drivers to create complete DC to 1MHz (or more) wideband systems for driving long fiber optic or coaxial cables. Fiber optics are particularly desirable to eliminate ground current return, pick-up and isolation problems, although Ross Engineering Corp. coaxial cable drivers provide considerable isolation between source and load also. VD900-T 42.00 (1066.8) INCHES (MILLIMETERS) HV TERM 3/8-24 UNF PHMS X .75(19.0) 24.00 (609.6) 236.11 ± 2.00/VD900 (5997.2) ± (50.80) 258.00 ± 2.00/VD1000 (6553.2) ± (50.80) HV TERM 3/8-24 UNF AS REQUIRED SEPARABLE INTO TWO OR FOUR STACKS 288.0 ± 2.00 (7315.2) ± (50.80) VD900- -T, BTC VD1,000- -T, BTC 42.00 (1066.8) HV TERM 3/8-24 UNF AS REQUIRED 110.50 ± 1.00 (2806.7) ± (25.4) LOW END HOUSING 16.88 (428.8) 42.00 ± 2.00 (1066.8)±(50.80) 108.00 ± 2.00 (2743.2) ± (50.80) VD450- -T, BTC SEPARABLE INTO TWO STACKS PRESSURE GAUGE OUTPUT TERMINALS IN WEATHER PROOF BOX PRESSURE GAUGE LOW END HOUSING OUTPUT TERMINALS IN WEATHER PROOF BOX 11.50 (292.1) VD60- -T VD90- -T VD120- -T 32.00 ± 1.00/VD120 (812.8) ± (25.4) 32.00 ± 1.00/VD150 (812.8) ± (25.4) 58.53 ± 1.00/VD225 (1486.6) ± (25.4) TANK VALVE 15.50 ± 1.00/VD60-T (393.7) ± (25.4) 25.00 ± 1.00/VD90-T (635.0) ± (25.4) 25.00 ± 1.00/VD120-T (635.0) ± (25.4) TANK VALVE VD120- VD150- VD225- HV TERM 3/8-24 UNF PHMS X .75(19.0) -TC -BTC -BTC * ENCLOSED OPTIONAL COAXIAL OR FIBER OPTIC DRIVER / TRANSMITTER 6 R OSS 540 Westchester Dr., Campbell, CA 95008 PHONE:(408)377-4621 FAX:(408)377-5182 www.rossengineeringcorp.com e-mail: info@rossengineeringcorp.com ENGINEERING CORP.
VMP PROBE SERIES (Please see also digital multimeter and VM probes brochure B-1010 or B-1012-A for multiple match and multiple ratio to match digital voltmeters and accessories.) The Ross VMP HV probes are designed for hand-held portable applications with insulated handle, or mounting in a fixed position. The portable capacitive, resistive, or compensated types are used with digital multimeters, oscilloscopes, and various types of panel meters. Resistive types are used primarily for DC and 50 or 60Hz AC or other specific single frequency sine wave, while the capacitive types are used for wideband and pulse work. Compensated resistance/capacitance wideband DC to 1MHz (or more) models are preferred for general use In both the VMP and VD Series. Standard calibration is centered around 2/3 to 3/4 of the maximum rating and is matched for 1 megohm, 20 to 50pF or 10 megohms 75-100pF of load input impedance of display or recording device and optional 3, 6, or 15 feet (please specify the shortest practicable length) of RG-59 or special Ross Engineering Corporation VMP200A WIDEBAND DC-1MHz VMP60-G DC & 50/60Hz coaxial cable. Fiber optic system or 50-75 ohm matching amplifier/coaxial cable driver is recommended for wide-band transmission over 20 feet. Any type can be calibrated with best accuracy and specified stability at specific frequencies, voltages and loads within their capabilities. Unless rules of shielding and proximity are followed, VMP series models may not be as accurate as the VD models due to wider variation in possible proximity of walls, equipment, etc. Other ratios and matchings are available. MODEL ELECTRONIC CLASS MODEL POWER CLASS VMP30E-G VMP15-G VMP30EA-25Y-H VMP15-25Y-H VMP30-G VMP30-12.5Y-H VMP60-G VMP60-8.3Y-H KV MAXIMUM OPERATE CONTINUOUS ELEC - TRONIC CLASS DC OR PK AC 30KV 30KV 60KV 60KV 90KV 90KV 120KV 120KV 150KV 150KV SEE BROCHURE B-1012-A FOR INSULATED HANDLES FOR HAND HELD REQUIREMENTS. TYPICAL UNITS - MANY OTHERS AVAILABLE SPECIFICATIONS HV PROBE TYPE VOLTAGE DIVIDER OR SERIES MULTIPLIER • • MODEL • NOMINAL HV INPUT VMP60E-G VMP60EA-12.5Y-H VMP90E-G VMP90EA-8.3Y-H VMP120-G VMP120A-6.2Y-H VMP150-G VMP150A-10Y-H VMP200A-7.6Y-H POWER CLASS RMS L-L 5KV 5KV 8.25KV 8.25KV 25.8KV 25.8KV 38KV 38KV 48KV 48KV * KV BEST ACCURACY 20KV 20KV 45KV 45KV 60KV 60KV 80KV 80KV 100KV 100KV * ACCURACY ±% DC % .1 .1 .1 .1 .1 .1 .1 .1 .1 .1 *50 OR 60Hz % 1 1 1 1 1 1 1 1 1 1 *WIDE- BAND % - 3dB - 3dB - 3dB - 3dB - 3dB NORMAL FREQUENCY RANGE DC, 50/60Hz DC-1MHz DC, 50/60Hz DC-1MHz DC, 50/60Hz DC-1MHz DC, 50/60Hz DC-1MHz DC, 50/60Hz DC-1MHz KV MAXIMUM IMPULSE 1.2X50 uSEC TEST SINGLE PULSE 60KV 60KV 120KV 120KV 150KV 150KV 200KV 200KV 250KV 250KV RESISTANCE MEGOHMS 300 300 600 600 900 900 1200 1200 1500 1500 CAPACITANCE PF NORMAL RES ONLY 25 RES ONLY 12.5 RES ONLY 8.3 RES ONLY 6.2 RES ONLY 10 ** STANDARD RATIO TO LOAD AND 15’ SPECIAL ROSS COAX CABLE. 10MΩ 100pF 1,000/1 1,000/1 1,000/1 1,000/1 1,000/1 1,000/1 1,000/1 1,000/1 1,000/1 1,000/1 200KV 72KV 150KV .1 1 3dB DC-1MHz 300KV 1950 7.6 1,000/1 10,000/1 7’0” LOAD 1MΩ 30pF 1,000/1 1,000/1 1,000/1 1,000/1 10,000/1 10,000/1 10,000/1 10,000/1 10,000/1 10,000/1 OSHA MIN. CLEAR- ANCE 2’7” 3’4” 3’4” 3’8” 5’0” + RECOMMENDED MINIMUM ALLOWABLE HANDLE LENGTH IN FEET INCLUDING HAND HOLD RECOM- MENDED LENGTH 3’11” - 4’7” 4’8” - 5’4” 4’8” - 5’4” 5’0” - 5’7” 6’4” - 6’11” 8’4” - 8’11” NOM. POWER CLASS 6’-9’ 7.5’ - 9’ 7.5’ - 9’ VMP250A-6.2Y-H VMP300A-5Y-H 250KV 95KV 187KV .1 2 3dB DC-1MHz 400KV 2400 6.2 1,000/1 10,000/1 7’0” 300KV 121KV 225KV .2 3 3dB DC-1MHz 500KV 3000 5 1,000/1 10,000/1 7’0” 8’4” - 8’11” 8’4” - 8’11” VMP400A-3.8Y-H 400KV 145KV 300KV .2 5 3dB DC-1MHz 600KV 3900 3.8 1,000/1 10,000/1 11’0” * With proper proximity of nearby conducting surface and test point size. Accuracy can be improved by calibrating with known proximity. Accuracy is at 2/3 to 3/4 of max rating unless otherwise required. Calibration points are every 10 to 20% and are included with instruction manual. Other calibration points are optional. * Some probes are subject to limits on frequency, and proximity of HV and conductive surfaces, to obtain stated accuracies. ** Most standard models are single ratio, single or dual load matching to oscilloscope or DMM. Higher input resistance or capacitance and other ratios available including multiple matching and multiple ratios. • Power class is rated on the basis of 3 phase line to line and BIL (basic impulse level)with high safety factor. Electronic class is rated on max continuous operate without overheating, but with less safety factor. Impulse is a test rating only. INCHES (MILLIMETERS) COMPENSATED TYPE WIDEBAND PROBE RESISTIVE TYPE DC, 50/60Hz PROBE 2.76 DIA (70.00) HV TERMINAL 1/4-28 UNF 1.25 DIA (31.7) .60 (15.2) 10-32 THREAD OR CORONA NUT B A + Handle length includes handhold of 12” to 24” based on OSHA regulations. See OSHA Title 8, Page 390, Table 2940.2. Insulating handles and heavy superflex insulated ground leads are available. See brochure B-1010, B-1012, and B-1017 for addditional information on handles, digital probes and digital displays. Note: Change -H to -J and -G to -GJ if insulated handles are required. See B-1012A or B- 1017B for recommended handle lengths. Specifications are for reference only and are subject to change. Contact Ross Engineering Corporation for current dimensions. STANDARD BNC CONNECTOR 1.50 (38.1) TANK VALVE PRESSURE GAUGE .84 (21.3) BNC CONNECTOR 10-32 UNF GROUND STUD 10-32 UNF GROUND TERMINAL THIS SIDE .88 (22.3) 1.66 (42.2) 5/8-11 THREAD OPTIONAL CABLE WITH BNC OR OTHER CONNECTOR 2.75 (69.9) 5/8-11 THREAD DIMENSIONS MODEL A B VMP 15-G VMP 15-25-H VMP 30-G VMP 30-H VMP 60-G VMP 60-H VMP 120-G VMP 120-H VMP 150-G VMP 150-H VMP 200-H VMP 250-H VMP300-H VMP 400-H 12’4” - 12’11” 12.09 (307.0) - - 16.75 (425.4) - - 24.00 (609.6) - - 31.50 (800.1) - - 56.5 (1,435.1) - - - - - - - - - - - - 8.91 (226.3) - - 12.91 (327.9) - - 16.95 (430.5) - - 21.12 (536.9) - - 24.68 (626.8) 30.53 (775.4) 33.50 (850.9) 43.46 (1103.8) - - 7
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Page 3 and 4: WIDEBAND VD SERIES These compact, h
Page 5: TYPE 4 TYPE 6 VD150-C VD450-D 27.00

HIGH VOLTAGE VOLTAGE DIVIDERS AND PROBES - Spectroscopic

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