GE Datex-Ohmeda S/5, Technical Reference Manual

Page: 153 / 453

Service Menu
17
Document no. M1137266-02
4.1.2 Gases
Noise Meas activates the noise measurement.
Sample gain adj adjusts the sampling pump gain,
i.e. for adjusting the sample flow
measurement.
Fall time Meas *activates the fall time
measurement.
Pump ctrl A manual control for the sampling
pump.
Zero valve ctrl A manual control for the zero
valve.
Occl valve ctrl* A manual control for the occlusion
valve.
Record Data prints out the shown service data
and board information (id. serial
number and software id.) onto the
recorder module.
Service Data
O
2
, CO
2
, N
2
O, AA
% field shows real-time concentrations.
noise-% is standard deviation of concentration.
O
2
, CO
2
, N
2
O, AA channels A-E
mV field: signal is scaled to mV.
Gain : User gain. It is scaled as (User gain)/(Factory gain).
ID* Shows the identified agent.
ID unrel.* The shown value tells how unreliable the identification is. With pure agent the value is
typically < 75.
Sample Flow is calculated from differential pressure and adjusted by the module. Zero value as
measured during initialization when the pump is off. Gain : sample flow measurement can be
calibrated by adjusting the gain.
Ambient* Ambient pressure is measured continuously in E-miniC. In M-miniC it is measured at least
once an hour (during the first running hour during each zeroing process). In M-Gas it is
measured once an hour.
Amb-Work : ambient pressure - sampling system internal pressure.
Fall time* CO
2
and O
2
in ms. For N
2
O and AA same as CO
2
.
CO
2
-O
2
Delay* In ms. No delay between CO
2
, N
2
O, and agents.
Pump Can be toggled ON/OFF. PWM output 0-100% is shown. Pump voltage is also shown.
Lamp The state, PWM control, and current of the lamp are shown.
Fan* The state of the fan is shown.
Zero and Occl valve Can be toggled between the measurement state (MEAS) and zeroing/occlusion states
(ZERO/OCCL).
Temp Temperatures measured by the module from TPX, CPU, and OM.
Time after power on In minutes after power on.
*) The function is only in use with Compact Airway Modules.