Radical-7 Signal Extraction Pulse CO-Oximeter Service Manual
5-5
5.11 Analog Output Test
5.11.1 Disconnect all patient cables and sensors from the Radical-
7. Turn the Radical-7 off and then on again.
5.11.2 Connect the common lead of a multimeter to the pin 2
(Ground) of the Analog Output/Nurse Call Connector.
Connect the positive lead of the multimeter to pin 9 (Analog
1) of Analog Output/Nurse Call Connector.
5.11.3 Enter the menu system and set the "Output", "Analog 1" to
"0v Output". Verify that the voltmeter measures a voltage of
approximately between –10mV and 100mV.
5.11.4 Set “Analog 1” to 1v Output”. Verify that the voltmeter
measures a voltage between 0.90V to 1.10V.
5.11.5 Reset “Analog1” to “Spo2 0 – 100%”.
5.11.6 Repeat steps 5.8.3 and 5.8.4 with the positive lead of the
multimeter connected to pin 15 (Analog2) and set “Analog2”
to “0V Output” and “1V Output”.
5.11.7 Reset “Analog2” to “Pulse Rate”.
5.12 Serial Port
5.12.1 The serial port outputs ASCII data using standard RS-
232 protocol via a straight through serial cable. The
Handheld must be docked with AC power applied.
5.12.2 Validation of the port can be done by connecting a serial
printer or using a PC with Hyper Terminal and the following
setup:
5.12.3 Communication Parameters
baud rate
9600 bps
data bits
8
stop bit
1
parity
none
hand shaking
none
5.12.4
With the Radical-7 connected as per the above setup, attach a
patient cable and sensor to the Radical-7. From the Output menu,
select ASCII 1 and the printer (or PC monitor) will print in the
following format every second.
05/15/07 08:12:21 SN=0000070986 SPO2=---% BPM=--- PI=--.--%
SPCO=--.-% SPMET=--.-% DESAT=-- P-- PVI=---
ALARM=0000 EXC=000000
