Teraohmmeter

Teraohm- & Ampere-Meter Model TO-3 | Milli- & Tera-Ohmmeter Model mTO-3

Instruments for determination of resistive properties of insulating materials by using DC methodes

Microprocessor-controlled instruments for determining the volume resistance as well as the surface resistance of insulating materials, non-metals or other materials. Measurement of resistivity and small currents is also possible. Resistance measuring range

• 1 kΩ ... 1,5 PΩ [ TO-3 ]
• 10 µΩ ... 180 kΩ und 0,9 kΩ ... 1,6 pΩ [mTO-3]

Features:

• Aluminum cabinet with swivel-type handle
• 2 LC Displays with 2 lines each
• 7 measuring ranges, manual/automatic change over
• START & STOP buttons to release/end test procedure
• Controlling by instrument keys or RS232 interface
• Indication of critical values by beeper or relay output
• Voltage source: sustained short circuit-proof

Optional Equipment:

• Guard ring electrodes acc. DIN IEC 60093, etc.
• Concentric ring probes acc. ESD STM11.11, etc.
• Shielded cabinets, high ohm test cables
• Low ohm clamps (Kelvin type), low ohm test cables
• 4-wire Kelvin type electrodes acc. DIN EN ISO 3915

Test Standards & Regulations:

• IEC 62631-3-1:2016; IEC 62631-3-2:2015;
• EN 62631-3-1:2016; EN 62631-3-2:2016; ISO 10965;
• ASTM D 257; ANSI ESD STM11.11; DIN 53482

Options:

Protection ring electrode type SE 50

• Electrode for measurement of volume and surface resistivity according to DIN/ IEC 60093
• Inner measuring area: 1963,5 mm2 (Ø 50 mm)
• Protection ring: Ø 80 mm AD, Ø 60 mm ID
• Resulting measuring gap: 5 mm
• Effective measuring area: 23,76 cm2
• Maximum measuring voltage: 500 V
• Further electrodes for measurements in the high- impedance or low-impedance range on request.