User`s guide

18
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Table 2: SENSOR RANGE and SETTINGS
MOUNTING PRESSURE SENSORS
1) The steam pressure sensors (BLPS-15, -25, -30, -200, -300) provide a 1/4” NPT female fitting for
connection to the steam header.
2) Make sure the boiler is shut down and zero steam pressure exists in the boiler vessel.
3) Disconnect power to the boiler controller so the boiler cannot sequence during installation of the
steam pressure sensor.
4) Always mount the steam pressure sensor above the water line of the boiler.
5) Locate the pressure sensors where the ambient temperature will not exceed 185F.
6) Use only a small amount of pipe compound to seal the connection joints. Excess pipe compound
may clog the fitting and prevent proper operation of the sensor.
7) Although the unit can withstand substantial vibration without damage or significant output
effects, it is good practice to mount the pressure sensor where there is minimum vibration.
8) A steam trap (siphon loop) must be connected between the boiler and the pressure sensor to pre-
vent boiler scale and corrosive vapors from affecting the pressure sensor element.
9) Make all pipe connections in accordance with approved standards.
10)When tightening the sensor, apply a wrench to the hex flats located just above the pressure fitting.
DO NOT tighten by using a pipe wrench on the housing. Do not tighten the pressure sensor by
hand.
WARNING: The electro-mechanical high steam limit and/or high hot water
temperature limit MUST REMAIN in the 3-P running interlock circuit.
Part
Number
Sensor Type Set Point Range Cut In Cut Out Mod Range
Increment
Decrement
0 - 15 PSI 1.0 - 14.0p 0 - 6.0p 0.3 - 6.0p 0.3 - 6.0p 0.1p
0 - 1030m 70m - 950m 0 - 410m 20m - 410m 20m - 410m 10m
-14.7 - 25 PSI 1.0 - 23.0p 0 - 6.0p 0.3 - 6.0p 0.3 - 6.0p 0.1p
-1013 - 1720m 70m - 1500m 0 - 410m 20m - 410m 20m - 410m 10m
0 - 30 PSI 1.0 - 28.0p 0 - 6.0p 0.3 - 6.0p 0.3 - 6.0p 0.1p
0 - 2070m 70m - 1950m 0 - 410m 20m - 410m 20m - 410m 10m
0 - 200 PSI 10 - 190p 0 - 60p 3 - 60p 3 - 60p 1.0p
0 - 13.8B 0.70 - 13.0B 0.0 - 4.1B 0.2 - 4.10B 0.20 - 4.10B .05B
0 - 300 PSI 10 - 280p 0 - 60p 3 - 60p 3 - 60p 1.0p
0 - 20.7B 0.70 - 19.3B 0.0 - 4.1B 0.2B - 4.10B 0.2B - 4.10B .05B
32º - 350ºF 35º - 338ºF 0º - 60ºF 3º - 60ºF 3º - 60ºF 1ºF
0º - 176ºC 4º - 170ºC 0º - 60ºC 3º - 60ºC 3º - 60ºC 1ºC
32º - 752ºF 35º - 725ºF 0º - 60ºF 3º - 60ºF 3º - 60ºF 1ºF
0º - 400ºC 4º - 385ºC 0º - 60ºC 3º - 60ºC 3º - 60ºC 1ºC
BLPS-15
BLPS-30
BLPS-200
BLPS-300
m = millibar, p = psi, B= BAR
Note: 1 PSI = 68.94757 mbar
TS350-X*
TS752-X*
BLPS-25
*Select Length X = -2”, -4” or -8”