Preziohm tfr is a portable system specially designed to measure impedance and resistance of transmission line tower footing without necessitating removal of top ground wire.
Preziohm tfr has a wide measurement range (0to 2k ohms) and is immune to power frequency interference and its harmonics. The instrument is designed to operate in a highly induced environment and to give highly stable, reliable, repeatable readings with its strong capability of noise & leakage current voltage suppression
advantages:
measures impedance along with resistance of the transmission line tower footing
without isolating overhead earth wire
ø automatic suppression of all noise and leakage currents
ø metallic shielding to suppress emi interference and emc compliance
ø dynamic measurement
ø rock steady, reliable and repeatable readings in induced environment
ø high capacity battery for long and continuous operation

Preziohm tfr is a portable system specially designed to measure impedance and resistance of transmission line tower footing without necessitating removal of top ground wire.
Preziohm tfr has a wide measurement range (0to 2k ohms) and is immune to power frequency interference and its harmonics. The instrument is designed to operate in a highly induced environment and to give highly stable, reliable, repeatable readings with its strong capability of noise & leakage current voltage suppression
advantages:
measures impedance along with resistance of the transmission line tower footing
without isolating overhead earth wire
ø automatic suppression of all noise and leakage currents
ø metallic shielding to suppress emi interference and emc compliance
ø dynamic measurement
ø rock steady, reliable and repeatable readings in induced environment
ø high capacity battery for long and continuous operation