Walchem WBL400 Series User Manual

WBL400 Series Blowdown and Feed Boiler Conductivity Controllers 180447.B-Revised 6/4/2010 Part 1. General 1.1 Scope A. This section

Power Supply(115 VAC or 230 VAC)Contact Closure:Polarity not criticalReed SwitchFlow MeterPolarity not CriticalIN-FLOW MTR 1FLOW MTR 2IN+ IN-FLOW

Bleed Solenoid/Motorized Ball ValveBLOWDOWNN.C.FEEDN.O.N.C.N.O.PUMPBLEEDN.C.FEEDN.O.N.C.N.O.L2L2L1L2/ NGROUNDSTUDBLK 120VBRN 240VWHT 120VBLU 240VGRN

Pump(s)Bleed Solenoid/Motorized Ball ValveAlarmL1L2/ NL2 L2 L2 L2 L2 L2BLEEDN.C. N.O.N.C.BOI 1N.O.N.C.FEEDN.C.BIO 2N.O. N.C. N.O.N.O.ALARMN.C.N.O.L

POWERFEEDBLOWDOWNPLUGCONDUCTIVITYELECTRODEFLOW SWITCH(OPTIONAL)FLOW METER(OPTIONAL)4-20mA(OPTIONAL)SPARES WBL400 Conduit Wiring POWERAUX1BLO

4. Outputs: a. Control (on/off): Two internally powered relays, (WBL400 models) or Six internally powered relays (WBL410 models) • 6 A (resistive)

2. Materials of construction: 316SS, PEEK or PVDF. 3. Process connections: 3/4” NPTM 4. Temperature range: 0 – 200 degrees C. 5. Pressure range: 0

Part 4. Execution 4.1 Installation A. The sensor shall be installed in the skimmer line that draws a sample from 4-6 inches below the lowes

Part 6. Options 6.1 Related Equipment A. Orifice Union for back pressure and blowdown rate control B. Solenoid valve for blowdown control C.

Dimensions 5.465”(139mm)6.750”(171mm)4.0” Typ(102mm)7.684”(195mm)

Typical Installation Intermittent Sampling To DrainSkimmer Blowdown Line3/4" Min. up to ElectrodeFull Port BlockValveManual Blowdown(Normally C

Typical Installation Continuous Sampling To DrainSkimmer Blowdown Line3/4" Min. up to ElectrodeFull Port BlockValveManual Blowdown(Normally Cl

WBL Series Ordering Information WBL4 0 - CONTROL 0 = Two (2) powered relays 1 = Six (6) powered relays VOLTAGE 1 = 120 VAC, prewired 5