PU 187.21 MEGMET 1000 D

Instrument PU 187.21 MEGMET 1000 D is intended for measurements of the insulation resistance up to 20 GΩ and the resistance of protective conductor up to 2 kΩ, its length; it can be used for checking the over-voltage protections. It also measures DC / AC voltage up to 1000 V and the temperature within the range -20 °C ÷ 120 °C, with a connected external sensor within the range -50 ÷ 850 °C. Nominal measuring voltages for the insulation resistance measurements are 50, 100, 250, 500, and 1000 V.

MEGMET 1000 D complies with the requirements of following standards:

• DIN 57 413/VDE 0413, 1. Volume: Measuring instruments of insulation resistance CSN 33 1600 Revisions and inspections of electrical manual tools during use, CSN 331610 Inspections and revisions of electrical appliances during use, CSN EN 61557

• CSN EN 61010-1 Safety requirements for electrical measuring, control and laboratory devices

• The instrument meets the requirements of standard in the field of electro-magnetic compatibility.

Functions and features:

• Micro-processor control of the instrument.

• Digital display of measured data alongside the analogue one (bar graph)

• Calculation of cable length from the measured resistance value

• Measurement of AC / DC voltage, over-voltage protections

• Measurement of insulation resistance up to 20 GΩ

• Measurement of low resistances (length of the measured wired) with disturbing voltage indication.

• Memory for measured values with the possibility of bi-directional transmission to PC through RS 232

• Backlit display

• Battery recharge inside instrument possible

• Low weight and small dimensions

• Casing design identical with that of Megmet PU 182.1

• User-friendly operation and minimum maintenance

Technical parameters:

• Measurement of AC / DC voltage: 0 to 1000 V ± (2%MH + 5 D)

• Nominal voltage: 50, 100, 250, 500, 1000 V

• Insulation resistance: (nominal current 1,2 mA ± 0,2 mA): 0,1 to 20 GΩ ± ( 5% + 5 D )

• Protective conductor resistance: 20 Ω, 200 Ω, 2 kΩ ± ( 5% + 5 D )

• Over-voltage protections: 0 to 1000 V; 1,2 mA

• Temperature: -20 to + 850 °C

• Calculation of cable length: 0 to 19,9 km, dia. 0,125 to 6,0 mm² Cu / dia. 1,0 to 6,0 mm² Al

• Memory for 1 999 measured values (250 BANK) with the possibility of transmission through RS 232 to PC

• Insulation resistance: 0,1 MΩ - 20GΩ (50 + 15) V, 0,1 MΩ - 20GΩ (100 + 20) V, 0,1 MΩ - 20GΩ (250 + 20) V, 0,1 MΩ - 20GΩ (500 + 50) V, 0,1 MΩ - 20GΩ (1000 + 100) V

• Dimensions: 308 x 92 x 57 mm

• Basic accuracy: ± (2% MH + 2D)

• Weight: approx. 500g