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250
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Cycle/sample type conductivity blowdown controller with
high alarm. 1-10 min sample, 1-180 min cycle time. UL listed. Standard range 0-10,000 µS (No power cord or outlets.) Requires sensor below and PL5 is recommended.
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SYSTEM OPTIONS (optional, select one or more)
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AV
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Audible and visible alarm with "PUSH TO SILENCE" pushbutton.
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-CR
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0-5 range front panel; conductivity range is 0-5,000 µS.
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-2
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Remote preamp input (use with SR2P or SR4P, below).
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-F
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250 VAC 50 Hz power option.
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CONTROLLER OUTPUT OPTIONS (optional, select one only)
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-35
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Isolated 4-20 mA output for conductivity remote data acquisition.
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-42
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HIGH/LOW conductivity dry alarm contacts with adjustable setpoints.
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-44
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Isolated 4-20 mA output, plus High/low alarms.
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SENSOR OPTIONS (recommended, select one below)
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SR2P
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Boiler water sensor with preamp & enclosure (only
w/-2 above); rated to 600 psi @ 486°F (41.4 bar @ 252°C).
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SR4P
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4 electrode sensor with preamp & enclosure (only w/-2
above); rated to 250 psi @ 392°F (17.2 bar @ 200°C).
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SR2
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Boiler water sensor with 20 ft cable, ¾ inch NPT; rated to 600 psi @ 486°F
(41.4 bar @ 252°C) with elbow.
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PLUMBING OPTIONS (recommended, select one below)
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PL5
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Plumbing for cycle sample assembly, ½ inch (1/8 & 1/16 orifice plates and union).
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PL575
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Plumbing for cycle sample assembly, ¾ inch (1/8 & 1/16 orifice plates and union).
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GV
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½ inch forged globe valve for flow metering instead of an orifice plate and union.
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MOUNTING OPTIONS (optional, select one only)
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PM
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Panel mount 6 ¼ inch square cutout.
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BM
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Bracket for pipe mounting.
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BLOWDOWN VALVE OPTIONS (optional, select one only)
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MBV1
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Motorized ½ inch blowdown valve with 1036 actuator; rated to 250 psi @ 400°F
(17.2 bar @ 204°C).
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MBV2
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Motorized ¾ inch blowdown valve with 1036 actuator; rated to 250 psi @ 400°F
(17.2 bar @ 204°C).
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MBV3
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High pressure motorized ½ inch
blowdown valve with 1275 actuator; rated to 600 psi @ 550°F (41.4 bar @ 288°C).
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MBV4
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High pressure motorized ¾ inch
blowdown valve with 1275 actuator; rated to 600 psi @ 550°F (41.4 bar @ 288°C).
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PV4
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Pneumatic high pressure ½ inch
blowdown valve with 1034 actuator; rated to 600 psi @ 486°F (41.4 bar @ 252°C).
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