SERIES SPECIFICATIONS Pressure ranges 400/500 Series (all) Vacuum and compound ranges through 0 psi to 20,000 psi Accuracy 15-401, 15-411 ±2.5% full scale 25-400, 25-410, 25-500, 25-510 ±1.6% full scale 40-400, 40-410, 40-500, 40-510, 60-400, 60-410, 60-500, 60-510 ±1% full scale Temperature ranges* 15-401, 15-411 Media -40 °F to 212 °F (-40 °C to 100 °C) Ambient -40 °F to 140 °F (-40 °C to 60 °C) 25-400, 25-410, 40-400, 40-410, 60-400, 60-410 Media -40 °F to 392 °F (-40 °C to 200 °C) Ambient -40 °F to 140 °F (-40 °C to 60 °C) 500 Series (all) Media -4 °F to 212 °F (-20 °C to 100 °C) Glycerin fill -40 °F to 212 °F (-40 °C to 100 °C) Special fill Ambient -4 °F to 140 °F (-20 °C to 60 °C) Glycerin fill -40 °F to 140 °F (-40 °C to 60 °C) Special fill Measuring element 15-401, 15-411, 25-400, 25-410, 25-500, 25-510, 40-400, 40-410, 40-500, 40-510, 60-400, 60-410, 60-500, 60-510 (up to 600 psi) 316 stainless steel C-Type Bourdon tube 25-400, 25-410, 25-500, 25-510, 40-400, 40-410, 40-500, 40-510, 60-400, 60-410, 60-500, 60-510 (greater than 600 psi) Coiled safety tube Connection 15-401, 15-411 1/8" NPT, 316 stainless steel 25-400, 25-410, 25-500, 25-510 1/4" NPT, 316 stainless steel 40-400, 40-410, 40-500, 40-510, 60-400, 60-410, 60-500, 60-510 1/2" NPT, 316 stainless steel. 9/16" – 18 high pressure connections are standard on 0 - 30,000 psi and higher Case 15-401, 15-411, 40-400, 40-410, 60-400, 60-410, 60-500, 60-510 304 stainless steel with safety relief plug 25-400, 25-410, 25-500, 25-510, 40-500, 40-510 Polished 304 stainless steel with safety relief plug Cover ring 15-401, 15-411, 25-400, 25-410, 25-500, 25-510, 40-400, 40-410, 40-500, 40-510 Polished 304 stainless steel 60-400, 60-410, 60-500, 60-510 Polished 304 stainless steel bayonet ring Lens 15-401, 15-411, 40-400, 40-410, 40-500, 40-510 Instrument glass 25-400, 25-410, 25-500, 25-510 Trogamide 60-400, 60-410, 60-500, 60-510 Laminated safety glass Pointer 115-401, 15-411 Black finished aluminum 25-400, 25-410, 25-500, 25-510, 40-400, 40-410, 40-500, 40-510 Balanced aluminum, black finish 60-400, 60-410, 60-500, 60.510 Balanced micro-adjustable aluminum, black finish Dial 15-401, 15-411 Aluminum, white background with black scale. Single scale psi. UV resistant 25-400, 25-410, 25-500, 25-510, 40-400, 40-410, 40-500, 40-510, 60-400, 60-410, 60-500, 60-510 Aluminum, white background with black scale. UV resistant. Movement 15-401, 15-411, 25-400, 25-410, 25-500, 25-510 Stainless steel with highly polished bearing surfaces 40-400, 40-410, 40-500, 40-510 All stainless steel with internal zero stop and highly polished bearing surfaces 60-400, 60-410, 60-500, 60-510 Stainless steel with highly polished bearing surfaces An internal zero stop is standard Fill liquid** 25-500, 25-510, 40-500, 40-510, 60-500, 60-510 Glycerin