Objectives:

This procedure checks that the instrument is still in good operational condition. It will also get a background measurement at the end. Block duration written not to exceed 4 hours.

Configuration: Landed Operations: Surface Phase Characterization. Checkout I & Checkout II_Puncture should have been executed and instrument nominal.

Assumptions: TEGA can not be turned on below -50C

Gas(es) used: Calibration and Carrier Gas Tanks have been punctured. No gases used during this activity.

Filaments used: 0

SW Version (386): V513 SW Version (EGA): V321

Sweep and hop mode version(s): V111

Super modes and Sweep modes used: SM 3, Sweep Modes 37

Sequences used: 30A,26A

1) Turn TEGA ON – tega_power_on

a) Add preheat pause as pass in duration determined by thermal environment

b) Increase Bus A&B current collection rates to 1/sec

2) Turn EGA ON, tega_ega_on 0 (restoring modes from EEPROM 0)

a) EGA Transmit time 5 sec. (done within tega_ega_on)

b) Run Sweep Mode 37 dark. (done within tega_ega_on)

3) Call tega_ega_prep (filament 0)

Sets Jplate 1 to -92V

Start SM 1 pause 1 sec

Set MV 2800V Pause 1 sec

Ion Pump ON Pause 1 sec

Emission ON

Pause 2 Minutes

Stop SM 1

4) Call tega_ega_calibration_scans 2, 3200

a) Calibrates all 4 channels

b) Resumes MV at 3200V

5) Wait 5 minutes for calibration scans to complete

6) Start SM 3

7) Change SGV Power to Ramp 1

8) Open Cover – Default is 50 Cycles

a) GV time out is 3 hours 45 minutes

9) Stop SM 3

a) Wait 60 seconds for SM to stop

10) EGA OFF – Call tega_ega_off

11) TEGA OFF – Call tega_power_off