Sierra Monitor Corporation 4501-05 - Manual (Page 15)

Model 4501-XX Toxic Gas Sensor Module
Page 11 of 35
5.4 SETUP SUB-MENU
The sensor module set-points menu is used to initially set-up the range and 4-20 mA calibration.
• 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. See specifications below for optional ranges.
• 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 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 4501-XX 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.
Factory Range Set-up
Model Range Other Available
4501-03 5-25% 0-25%
4501-04
0-500 PPM Variable
4501-05 0-100 PPM Variable
4501-06 0-10 PPM None
4501-08 0-3 PPM None
4501-10 0-100 PPM Variable
4501-12 0-20 PPM None
4501-25 0-100 PPM Variable
4501-26 0-10 PPM None