Action Level Options
  
         Alarm level specified as "PN-Sx-Gyy-Annn", where: 
           "x" is the sensor type code 
           (EG "ST" denotes thermal conductivity) 
           "yy" is the target gas code 
           (EG "GOX" implies oxygen) 
           "nnn" is alarm level (% of sensing range)
  
         Warning level specified as "Wpp" where 
            "pp" is percentage of sensing range 
         
  
         Error Handling Options
  
         1. Audio-visual indication of errors [E1] 
         2. Errors trigger alarms (fail safe) [E2] 
         
  
         Overdose Handling Options
  
         (Applies to MOS hydrogen sensor only)
  
         1. Failure to hypersensitivity [X1] 
         2. Failure to persistent error state [X2] 
         
  
         Output Signal Option
  
         1. TTL - Norm.-high, Auto (self-clearing) [O1] 
         2. TTL - Norm.-low, Auto (self-clearing) [O2] 
         3. TTL - Norm.-high, Latch (Button reset) [O3] 
         4. TTL - Norm.-low, Latch (Button reset) [O4] 
             (Specify TTL signal to respond to warning 
            state, alarm state, or both.)
  
         5. Proportional output - 0 to 5VDC [O5] 
             0.5V safety offset (zero reading) 
             1000 steps of 4.9mV each 
             Each step equals one resolution unit
  
         6. State step - 0 to 5VDC [O6] 
             Encoded normal/warning/alarm/error states 
         
  
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         Relay Options
  
         1. Relay not required [R0] 
         2. Normally-closed, Auto (self-clearing) [R1] 
         3. Normally-open, Auto (self-clearing) [R2] 
         4. Normally-closed, Latch (Button reset) [R3] 
         5. Normally-open, Latch (Button reset) [R4] 
          Specify relay to respond to warning state, alarm state, or both. 
         
  
         Audio Sounder Options
  
         1. No beeper [S0] 
         2. Includer beeper [S1] 
         
  
         Enclosure Options
  
         1. Open-frame (Circuit board only) [P0] 
         2. Anodized aluminum case (No flange) [P1] 
         3. Anodized aluminum case (With flange) [P2] 
         
  
         Sensor Placement Options
  
         Sensor heads can be housed within the control unit or can be extended via a cable.
         Extended sensors are house in a flanged aluminum enclosure.
  
	 1. No sensor extension [L0] 
         2. Sensor extended "n" meters [Ln] 
         
  
         Powering Options
  
         1. 5 VDC (+/- 5%) [I1] 
         2. 7-to-40 VDC switch mode PSU [I2] 
         3. 7-to-60 VDC switch mode PSU [I3] 
         
  
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