Signal Generator: Technical Specifications
Controls:
All operation is by push button control as follows:
On/Off.
Power Decrease (SGV) or Low Power (SGA).
Power Increase (SGV) or High Power (SGA).
Pulse / Continuous (toggle).
Audio Mute (toggle).
Connections:
Connection Mode Socket.
Separate Connection Mode Earth Socket.
Indications:
Audio feedback on button press.
Audio frequency drops with increasing load current in connected mode
to indicate a good connection.
Audio frequency on Induced mode changes with power level setting.
Audio output pulses to indicate Pulse Mode.
Low batteries indicated by interrupted audio and output signal.
Display (SG-V Only):
Multisegment LCD indicating the following:
Frequency
Pulse Mode
Continuous Mode
Output Level
Battery Condition
Output Current (Bargraph)
Speaker Mute
Output:
Carrier Frequency 32768 ± 5 Hz.
Carrier Pulse Frequency 7.5 Hz (Audio 3.75 Hz).
Connected Mode:
Maximum (open circuit) output voltage – 20 V rms.
Maximum (short circuit) output current – 18mA rms.
Maximum power 320mW into 1kΩ load.
Connection mode is automatically selected when lead is plugged into
socket.
Induction Mode:
Maximum field strength at 10m – 40 dB_µA/m
Maximum power output into a single turn close coupled - 465 mW (0.22Ω
load, 0.32V rms).
Construction:
Injection moulded high impact plastic case sealed to IP65.
Incorporates a clip-on accessory compartment.
Size: 360 x 180 x 230 mm (L x W x H) with accessory compartment.
360 x 180 x 170 mm without accessory compartment.
Weight – 3.4 Kg with batteries and standard accessories.
Designed to withstand a 1 metre drop onto a hard surface.
Power source:
Internal 4 “D” (LR20) cells (alkaline recommended).
Battery life minimum 40Hrs intermittent use at 20°C.
Both the SG-A and the SG-V are in compliance with the essential
requirements and other relevant provisions of Council Directive
1999/5/EC. Compliance has been demonstrated by testing representative
samples to the harmonised standards EN300-330 and EN301-489. The
essential radio test suites have been carried out and the equipment is in
conformity with all applicable directives.
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