Detcon Model RD-4X detcon inc. Remote Display Monitor Operator's Installation & Instruction Manual March 11, 2003 Document #1738 Rev 1.1 1.0 Description 2.0 Principle of Operation 3.0 Power Requirements 4.0 Setup/Operating Software 5.0 Specifications 6.0 Installation 7.0 Start-up 8.0 Spare Parts List 9.0 Warranty 10.
1.0 DESCRIPTION Detcon Model RD-4X remote display monitor is designed to receive and display the status of up to 16 remote gas sensor devices. Each display channel, numbered 1 through 16, corresponds with the output of a mating multiplexer PCB assembly (Detcon part #5216), which terminates up to 16, 4-20 mA sensor devices and transmits that information to the remote display via a two conductor RS-485 data line.
2.0 PRINCIPLE OF OPERATION In operation, the RD-4X receives information from up to 16 remote sensor devices via the RS-485 data line and displays that information on its graphic LCD display. The information includes gas type and concentration present at the sensor location. An alarm 1 (low) condition will cause the applicable channels reading to be shown in reverse video.
2) Connect 117VAC input wiring to the lug-type terminal strip labeled “117 VAC IN” (see dwg. below). 3) If 117VAC is not available, connect 24VDC to the terminal strip labeled “24 VDC IN”. 4) Connect RS-485 wiring from the multiplexer PCB assembly (Detcon part #5216) to the terminal strip labeled “RS-485 IN”. RS-485 data wiring should consist of 2 conductor, shielded, twisted pair. Belden part number 9841 is required. Terminate shield to the terminal strip but do not terminate the other end.
–S –O 4 2 All Wiring 20 gauge +S 1 1A +O 3 Power Supply Detcon RD-4X Remote Display Monitor PG.5 L2 117 VAC IN L1 24 VDC IN RS485 SHLD GND R/– T/+ RS-485 IN 24 VDC IN Remote PCB Assembly 10.
detcon inc. Remote Display Sensor Configuration Form January 1, 1997 Document # 1737 Detcon Model RD-4X and RD-7X are remote display monitors that provide information on up to 16 remote gas sensor devices. Each channel, numbered 1 through 16, corresponds with the output of a mating multiplexer PCB assembly (Detcon part #5216) which terminates up to 16 4-20 mA sensor devices and transmits that information to the remote display via a two conductor RS-485 data line.
Location Labels Channel # LOCATION #1 1 LOCATION #3 3 LOCATION #5 5 LOCATION #7 7 LOCATION #9 9 LOCATION #11 11 LOCATION #13 13 LOCATION #15 15 00 00 00 00 00 00 00 00 Range PPM/% GAS 2 PPM/% GAS 4 PPM/% GAS 6 PPM/% GAS 8 PPM/% GAS 10 PPM/% GAS 12 PPM/% GAS 14 PPM/% GAS 16 Gas Type 00 00 00 00 00 00 00 00 PPM/% GAS LOCATION #2 PPM/% GAS LOCATION #4 PPM/% GAS LOCATION #6 PPM/% GAS LOCATION #8 PPM/% GAS LOCATION #10 PPM/% GAS LOCATION #12 PPM/% GAS LOCATION #14
