PROGRAMMABLE TRANSMITTER
MODEL TXM55
The CTT Programmable DSP Transmitter was designed to operate in the mining
environment
on ANY of the DSP Fire Detection systems.
DESCRIPTION
· Programmable Frequency from 100Hz – 9,990Hz (10kHz)
· Direct replacement of the old Anglo transmitter module.
· Connect directly to the S1 / S2 telemetry cable exactly as the Anglo transmitter.
· One model only for the new 105chan SSP and older DSP88 and DSP128.
· Designed to work directly on the new AerView 2 or 3 SSP system.
CHARACTERISTICS
· Set three rotary BCD switches to the exact frequency.
· Display of the three rotary switches is the exact output frequency.
· ZERO frequency drift over time.
· Standard measuring points on the module for frequency, using a multi-meter.
· Frequency output similar to the Anglo transmitter.
· But available in any range from 100Hz to 10kHz.
TEST CERTIFICATES AND APPROVALS
· Designed for I/S conditions.
CONSTRUCTION
· Polyurethane encapsulated.
· Standard dimensions to fit into existing orange steel housing.
TECHNICAL DATA
| Supply voltage | 20V DC to 40V DC |
| Power consumption | 30mA + sensor current |
| Frequency Range | 100Hz – 10kHz |
| Channel | (3x) BCD Switch |
| Output | Modulated Sine Wave |
| Housing | Completely sealed in black epoxy mould |
| Explosion protection | Yes |
| Dimension | 140 x 65 x 35mm |
| Weight | 300 gram |
METHOD OF OPERATION
To adjust a transmitter to a desired channel frequency you must proceed as follows:
· Place the DSP transmitter on a flat surface with the cable towards you.
· And the BCD switches visible on the top of the DSP transmitter.
· Adjust the rotary BCD switches for the desired frequency.
· If you require a frequency of 6930 Hz, adjust the BCD switches as below.
