Model 5100-XX-IT Toxic Gas Sensor Module
4.4CONFIGURE SET-POINTS
The sensor module set-points menu is used to initially set-up the alarm set points, relay actions, gas type and range, 4-20 mA action and RS-485/Sentry address and baud rates.
•Alarm Set-points:Once the Set-up menu is selected, press [E] to activate the Alarm Set-point screen. Use the [▲] or [▼] keys to select Low Alarm or High Alarm menu. Key [▲] will adjust the setpoint upwards and Key [▼] will adjust the value downwards. Once it reaches the desired setpoint, Key [E] will accept it and ACK will appear.
Set-points can be configured using this menu up to the following values:
5100-03-IT | O2 | 19.5% |
5100-04-IT | C0 | 500 PPM |
5100-05-IT | H2S | 20 PPM |
5100-06-IT | Cl2 | 5 PPM |
•Alarm Relay Set-up:Once the Set-up menu is selected, press key [▼] once and press [E] to activate the Relay Set-up menu. Use the [▲] or [▼] keys to select High Alarm or Low Alarm relay menu and press [E]. Use the [▲] or [▼] keys to select the correct alarm relay action for the application, Latch, Sentry or Non-Latch. Selecting “Sentry” enables the Sentry controller to make all alarm action decisions. * indicates the current selection.
•Range: Once the Set-up menu is selected, press key [▼] twice and press [E] to activate the Range Set-up menu. Use the [▲] or [▼] keys to select Range menu and press [E]. When “Range” is selected menu provides any choices of ranges available for the gas type selected. Use the [▲] or [▼] keys to select the desired range. If the “User” range is selected, use the [▲] or [▼] keys to adjust the high end of the range desired.
•4-20mA:Once the Set-up menu is selected, press key [▼] three times and press [E] to activate the 4-20mA Set-up menu. Use the [▲] or [▼] keys to select Calib or CalibOut menu and press [E]. The “Calib” section of the menu allows the user to calibrate the 4 mA and 20 mA outputs. To calibrate the 4 mA and 20 mA outputs it is necessary to have an amp meter connected to the 5100- XX-IT and upon selecting the 4 mA output calibration then the [▲] or [▼] keys can be used to adjust the 4 mA reading on the amp meter until it reads 4 mA. Similar steps can then be performed for the 20 mA output. The CalibOut section allows the user to select the 4-20 mA output action desired during calibration. * indicates the current selected value. Available selections include:
Track – the 4-20mA value tracks the calibration gas exposed to the gas sensor module
Zero – the 4-20mA value is held at 0mA during calibration
C1.50mA – the 4-20mA value is held at 1.50mA during calibration
C4.00mA – the 4-20mA value is held at 4.0mA during calibration.
•RS-485- Once the Set-up menu is selected, press key [▼] four times and press [E] to activate the RS-485/Sentry Set-up menu. Use the [▲] or [▼] keys to select Address or Baud rate menu and press [E]. Note that the 5100-XX-IT has a rotary switch on the faceplate and it is used to select addresses 1-15. When connected to Sentry the user can select 1-8 and using Modbus RS-485 the user can select addresses 1-15. For Modbus addresses above 15, set the rotary switch to 0 and then use the “Address” menu to select any address between 16 and 254. The Baud rate menu allows the user to select a baud rate of 38400, 19200, 9600, 4800 or 2400. * indicates current selection.
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