Visual Alarm Panel - Contains green LED to indicate "service" side is in use and red LED to indicate control unit has switched to "secondary" side. Audio/Visual Alarm Panel - Contains red and green alarm lights and buzzer with "squelch" button. Green light remains illuminated while "service" bank is in use. When "service" bank is exhausted, green light is extin- guished, red light is lighted plus buzzer, rated 75 decibels within 100 centimeters, is activated to ensure notice of the alarm conditions. A touch of the squelch button silences the buzzer, but the red alarm light will remain illuminated until the exhausted bank has been replaced. Two Gas Audio/Visual Alarm Panel - As above, but warn- ing alarm lights and buzzer for two gases in a single box, i.e. Oxygen and Nitrogen, etc. All panels may be for either exposed or flush mounting. Available in 24 VAC service only. Alarm dimensions: 4-3/4"H x 2-9/16"W x 1-5/8"D. For open style manifolds, a 115/24 VAC power supply part number WMS–9–25C is required. PRESSURE SWITCHES, REMOTE ALARMS AND POWER SUPPLIES Designed for use with gas pressure manifolds to activate remote alarm systems. Operates when cylinder/line pressure is below minimum pressure setting. High/Low switches have two activa- tion points. Available for explosion proof or general purpose service. Electrical rating for all switches is SPDT 15 amps 24/125/250/480 VAC resistive. CSA approved. Pressure port connection 1/4" NPT female. REMOTE ALARM PANELS POWER SUPPLIES Utilized with remote alarm panels, reduces 115 VAC to 24 VAC. A circuit board in the power supply isolates remote alarms regardless of voltage (up to 3 amps 30 VDC or 2 amps 250 VAC). Dimensions: 6-1/4" x 4". Rated NEMA 3R, CSA approved. PRESSURE SWITCHES Specifications and Ordering Information Guidelines PART NUMBER DESCRIPTION PRESSURE RANGE (psig) MAXIMUM INLET (psig) WETTED MATERIALS ENCLOSURE CLASSIFICATIONS ELECTRICAL CONNECTION WME–4–5 Explosion Proof1,2 30–300 800 S.S. Bellows NEMA 4, 7, 9, IP66 3/4" NPT WME–4–6 Explosion Proof1,2 5–50 75 Brass Bellows NEMA 4, 7, 9, IP66 3/4" NPT WME–4–9 General Purpose1,2 100–1000 10,000 S.S. Piston & BUNA "N" o-ring NEMA 4 1/2" NPT WME–4–10 General Purpose1,2 200–3000 10,000 S.S. Piston & BUNA "N" o-ring NEMA 4 1/2" NPT WME–4–13 High/Low Switch1,2 0–300 350 Phosphor Bronze Bellows NEMA 4 7/8" Dia. Knockout WME–4–14 General Purpose1,2 20–200 250 Phosphor Bronze Bellows NEMA 4 1/2" NPT & 7/8 Dia. Knockout WME–4–16 General Purpose1,2 20–200 250 316 S.S. Bellows NEMA 4 1/2" NPT Female WME–4–18 High/Low Switch1,2 20–200 250 316 S.S. Bellows NEMA 4 7/8" Dia. Knockouts Note: Switches may be wired "normally open" or "normally closed". PART NUMBER DESCRIPTION BIA–1 Visual Alarm, 24 VAC BIA–2 Two Gas Audio/Visual Alarm, 24 VAC BIA–3 Audio/Visual Alarm, 24 VAC PART NUMBER DESCRIPTION WMS–9–25C For use with SD, MS, MD, and LA1,2 8570D For use with BI, LC, cabinet style manifolds1,2 Model BIA–3 1 ! WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. 2 ! WARNING: This product can expose you to chromium (hexavalent compounds), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. For more information, call Western Customer Service at 1-800-783-7890 38
