Electronic Pressure Measurement General Purpose OEM Pressure Transmitters Type OT-1 Datasheet OT-1 Applications General purpose high-volume OEM applications Special Features Pressure ranges from 100 psi to 8,000 psi Compound ranges available Durable thin film sensor technology Environmental protection to IP67 / NEMA 4X MTTF values over 100 years Description OT-1 pressure transmitters are precision engineered for Type OT-1 Pressure Transmitter applications where performance and durability are critical. Many different process and electrical connections are available allowing the OT-1 to be easily integrated with a wide variety of applications. The all-welded thin film measuring cell eliminates the need for additional soft sealing materials that may deteriorate over time. The thin film sensor uses sputtered technology that provides excellent long-term stability in applications producing frequent pressure cycles. The glass reinforced PBT plastic case has been used in under hood automotive applications for many years. A metal sleeve inside the case provides excellent EMI protection to 100v/m. The electrical connections meet NEMA 4X / IP 67 environmental protection ratings. The OT-1 is manufactured on a fully automated production line providing consistent quality and highly competitive pricing in large quantities. Custom modifications are available for large quantity requirements. Datasheet OT-1 1/2011 Page 1 of 4 RSpecifications Type OT-1 Pressure range -30 InHG/100 psi -30 InHG/200 psi 100 psi 150 psi 250 psi 300 psi 500 psi Maximum pressure* 290 psi 464 psi 290 psi 464 psi 725 psi 725 psi 1,160 psi Burst pressure** 1,450 psi 2,320 psi 1,450 psi 2,320 psi 3,625 psi 3,625 psi 5,800 psi Pressure range 1,000 psi 1,500 psi 2,000 psi 3,000 psi 5,000 psi 7,500 psi 8,000 psi Maximum pressure* 1,740 psi 2,900 psi 4,600 psi 7,200 psi 11,600 psi 17,400 psi 17,400 psi Burst pressure** 7,970 psi 11,600 psi 14,500 psi 17,400 psi 24,650 psi 34,800 psi 34,800 psi *Pressure applied up to the maximum rating will cause no permanent change in specifications but may lead to zero and span shifts **Exceeding the burst pressure may result in destruction of the transmitter and possible loss of media Materials: Stainless steel Wetted parts Fiberglass-reinforced polybutylene terephthalate (PBT) Case Signal output U in DC V Signal output Power supply U Maximum load R R B A Power supply U R in Ohm 4 ... 20 mA, 2-wire 8 ... 36 DC V R <(U 8 V) / 0.02 A B A A B Signal output and 1 ... 6 V, 3-wire 9 ... 36 DC V R > 2,500 A Maximum load R 1 ... 5 V, 3-wire 8 ... 36 DC V R > 2,500 A A 0 ... 10 V, 3-wire 14 ... 36 DC V R > 5,000 A 0.5 ... 4.5 V, ratiometric 5 + 0.5 DC V R > 240 A Response time (10 ... 90 %) ms < 2 Isolation voltage DC V 500 Accuracy % of span < 0.5 (B.F.S.L) % of span < 1.0 (B.F.S.L) for pressure ranges < 150 psi % of span < 0.5 (terminal method) % of span < 1.0 (terminal method) for pressure ranges < 150 psi (Includes non-linearity, non-repeatability, zero point and full scale) error per IEC L1298-2 Non-repeatability % of span < 0.2 Non-linearity % of span < 0.4 (B.F.S.L.) according to SEC 61298-2 1-year stability % of span < 0.3 (at reference conditions) Permissible temperature of: ) Media * -40 ... +257 F -40 ... +125 C ) Ambient * -40 ... +212 F -40 ... +100 C With cable version limited temperature range from (-40 ... +194 F) -40 ... +90 C ) Storage * -40 ... +248 F -40 ... +120 C With cable version limited temperature range from (-40 ... +194 F) -40 ... +90 C ) * Also complies with EN 50178, Tab. 7, Operation (C) 4K4H, Storage (D) 1K4, Transport (E) 2K3 Compensated temperature range +32 ... +176 F 0 ... + 80 C Temperature coecffi ients (TC) within compensated temperature range: Mean TC of zero % of span < 0.15 / 10K (special pressure ranges may have increased zero TC) Mean TC of range % of span < 0.15 / 10K CE conformity Pressure equipment directive 97/23/EC 2004/108/EC, EN 61 326 Emission (Group 1, Class B) and EMC directive Immunity (industrial locations) Wiring protection Short-circuit protection Sig+ towards UB- Reverse polarity protection UB+ towards UB- (not with ratiometric signal output) Weight oz Approximately 2.1 Page 2 of 4 Datasheet OT-1 1/2011