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Transmitter Callout Features TR-948
1. Output Jacks – Polarized (for DC Voltage), standard banana plug type.
2. Power Indicator – When the transmitter is On, the LED
illuminates indicating that a signal is being produced.
3. Line Energized Indicator – The transmitter continuously monitors
voltage across its output terminals. If greater than 30 volts AC or 30
volts DC is present, the LED indicator illuminates. The transmitter
also communicates the line voltage state to the receiver.
WARNING
Arc Flash and Shock Hazard, Proper PPE Required. When the Line Energized
Indicator is not illuminated, check for the presence of dangerous voltage with a
measuring device to verify voltage levels prior to working on the circuit that
the transmitter leads are connected to. Failure to comply can result in serious
injury or death.
4. Low Battery Indicator – When the low battery indicator flashes,
the batteries must be replaced
5. Power Button – Depress the button to switch power on and enable
the transmit function. Depress again to conserve battery power when
not in use.
6. AC Voltage or DC/Polarity Indicators
7. AC or DC Voltage Level Indication
8. PPE Level Indication
9. Operating Voltage Range – Operates on energized/de-energized
circuits from 0 to 600V AC/DC.
10. Battery Compartment – Holds (6) AA batteries.
11. Safety – Rated for use in CAT III 600V environments. Incorporates a high-energy, fast-acting
ceramic fuse.
12. Continuity Indicator - Patent pending automatic continuity check
Additional Notes
• The transmitter’s signal does not affect sensitive, electronic equipment on the circuit when placed on the
120 volt supply.
• In a closed circuit, because the transmitter generates a small test current, its signal can be detected
upstream through the feeder panel and the distribution transformer. The strength of the signal is
reduced as it passes through the transformer in inverse proportion to the turns ratio of the transformer.
• Can be used on GFCI protected circuits.
• Auto power off after 2 hours on the transmitter and 10 minutes on the receiver.
CAUTION
• The transmitter is rated for 0 to 600 Volts AC 50 or 60 Hz or DC. It is not compatible with non-
sinusoidal or distorted waveforms as are found at the output of variable frequency drives, dimmer
switches or in the presence of harmonically distorted waveforms.
• Connecting to these sources will damage the transmitter.
• Shipboard inverters can also cause damage to the transmitter.
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