Instruction Manual

18-0650-02 Revsion A
Page 5 of 13
III. OPERATING INSTRUCTIONS
1. S
ETUP
o Place Instrument in a well-ventilated location.
o Attach line cord to an appropriate 110 VAC outlet (Note: See section 10 for 220 VAC
operation).
o If data logging is desired, connect an appropriate cable to the USB digital output (Figure 1).
o Switch Instrument power to ON (Figure 1).
x A green light (Figure 2) indicates Instrument is ON
2. I
NITIALIZATION AND WARM-UP
The Instrument must initialize and warm to operating temperature before use, a process that
takes about 10 minutes. [Optimal Instrument stability is achieved after ~1 hour warm-up.]
x The display shows a “racetrack” pattern while the Instrument is
initializing and warming to operating temperature.
3. S
ENSOR ATTACHMENT
To connect a sensor assembly to the Instrument:
o Remove protective cap from sensor assembly male Connector
o Clean the male Connector tip with a soft alcohol saturated swab; use clean air to gently
dry the tip. Cleaning the male Connector tip on every use ensures that contamination is
not transferred to the internal male Connector.
o Remove protective cap from the Instrument female Adapter
o Blow out the inside of the female Adapter with compressed air.
o Carefully insert the male Connector into the female adapter in the front panel; observe
that this is keyed to accept the male Connector in only one orientation.
o Check to make sure the male Connector is fully inserted.
o The Connector clamshell contains an RFID tag (hidden) with calibration information, and
this will be loaded automatically.
4. F
OR PRESSURE SENSORS
o When the Instrument reaches operating temperature, the LED display will prompt the
operator as follows:
x The green LED adjacent to “PRES, mmHg” will light, indicating a pressure
sensor is connected.
x The main LED display will show an alternating pattern “CAL–0 –
CAL-0” etc., indicating the Instrument is ready for sensor zeroing.
o With the Sensor at ambient pressure, press the Zero button once. (This sets the
zero offset between the pressure Sensor and the reference barometric internal
pressure transducer.)
o When the LED display shows “
0”, the Sensor is ready for use and may be
placed at the desired measurement location. The Instrument is now in
measurement mode.