GTD-2000TxWInstruction Manual7.1. PROGRAM MODEPASSWORD[**]- Contacting "FUNC" key with the Magnet-bar for 2 sec or longer in Measuring Mode enters Password mode.- After setting Password using "↑" or "↓" key, contact "FUNC" key.PROGRAMMODE- If password is correct, it enters Program mode.- By contacting "↑" or "↓" key, mode changes in defined order.( PROGRAM -> CALIABRA. -> ALARM -> SENSOR -> MAINTEN. -> DEVICE -> VERSION -> TEST )GAS TYPE[ DEFIN. ]- Mode that sets gas name type and contacting "↑" or "↓" key changes gas type. (DEFIN. / USER)- DEFIN. Is acronym for Define and is selected when using built-in setting of gas name.USER is selected when the user directly sets a gas name.- When a desired gas type is displayed, contact "FUNC" key to set the gas name and enter Program Mode.GAS SEL[ COMB. ]- Mode that sets gas name and contacting "↑" or "↓" key changes gas name.- When gas type is set to DEFIN., built-in gas names can be selected for use. When it is set to USER,the user shall set gas name using 5 character for use. Characters allowed for use are number, capitalAlphabet, space, and period. When position is moved by setting characters, a cursor in black boxshape appears as shown in the figure on left.USER GAS[■ SER ]UNIT SEL[ %LEL ]- Mode that sets gas measuring unit and contacting "↑" or "↓" key changes gas measuring unit.( % / %LEL / PPM / PPB ).- When a desired gas measuring unit is displayed, contact "FUNC" key to set the unit and enter ProgramMode.D-POINT[ 100]- Mode that changes decimal place and contacting "↑" or "↓" key changes decimal place.(0.100/1.00/10.0/100)- When a desired decimal place is displayed, contact "FUNC" key to set the decimal place and enter thenext Program Mode.HIGH SCL[ 100]- Mode that sets high scale value that should be displayed for full range. Contacting "↑" or "↓" keyincreases or decreases the scale value. (1 ~ 10000)- When a desired high scale is displayed, contact "FUNC" key to set the high scale value and enter thenext Program Mode.PASSWORD[00]- It is password setting mode. This password is checked when entering Program Mode.- Set using "↑" or "↓" key then contact "FUNC" key to set the password and enter the next ProgramMode.7. System Mode