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The Series T family of differential pressure transmitters measure low pressures and feature low power consumption and a variety of analog signal outputs. A wide selection of standard pressure ranges and electrical ratings is available. These transmitters feature: no moving parts to wear out, reliable long term stability, and are virtually position insensitive. The Series T transmitters are an excellent choice for many HVAC, process and automation monitoring requirements. These transmitters monitor: filter differential pressures, fan static pressures, clean room pressures, variable air volume systems and velocity pressures. They have been used for bubbler level systems, leak detection and in medical and analytical instruments. The transmitters are housed in a flame retardant, glass-reinforced polyphenylene oxide (NORYL™) case. Electrical connections are made by means of a 3/8 in terminal strip with #6 screws. The Series T includes four models: Model T10, Model T20, Model T30 and Model T40. These four models incorporate a variety of power and signal options. The span or zero adjustment is performed with a 20-turn potentiometer for fine resolution. Amphenol Advanced Sensors

24, 120, or 240 VAC In DC Voltage Out T30 Two-wire DC Voltage In 4 to 20 mA Out T40 Four-wire 24, 120, 240 VAC In 4 to 20 mA Out The piezoresistive sensor is a solid state device designed in a Wheatstone bridge configuration. When pressure is applied to the device, the resistance of the bridge changes by a small amount. This resistance change is converted to a voltage and amplified.

  • Measures differential, gage pressure, or vacuum
  • Suitable for air or inert gases
  • Maximum safe momentary overpressure: see reference table A Performance Accuracy ± 1% of span (including non-linearity and hysteresis) Calibration (Traceable to NIST) Environmental Operating Temperature Range 32°F to 115°F (0°C to 45°C) Storage Temperature -20°F to 160°F (-30°C to 70°C) Effect of Temperature
  • on zero: ±0.05%/°C
  • on span: ±0.02%/°C Operating Humidity Range 10% to 90% RH non-condensing Shock Resistance

10 G (11 ms)

5 G to 50 Hz

External 3/8 in terminal strip with #6 screws Physical Pressure Port Connections 3/16 in diameter suitable for:

  • 1/8 in ID Tygon™ or polyurethane tubing 0.11 in to 0.15 in (3 mm to 4 mm)
  • 1/4 in OD polyethylene tubing (6 mm) Integral filters at both ports Dimensions (W x L x H) 3.00 in x 5.15 in x 1.40 in (76 mm x 131 mm x 36 mm) Material Flame retardant, glass-reinforced polyphenylene oxide (NORYL) case Weight 0.42 lbs (190 g) maximum

DC Power Input/Voltage Output Diagram shows area of detail. Please see inset diagrams for wiring. Electrical Supply Voltage 11 to 32 VDC (14.5 to 32 VDC for 10 Volts output) Protected against reversal of polarity Supply Current 10 mA Output

  • 0 to 5 Volts, linear
  • 0 to 10 Volts, linear
  • Sink or source 3.5 mA
  • Protected against short circuit

Ordering Information

(See Table below and Reference Table A on page 8) T10 - PPP - V - O Example: T10 - 01E - 5 - A PPP = Pressure Range V = Voltage Output O = Offset (See Note) See Reference Table A 5 = 0 to 5 Volts 0 = No offset X = 0 to 10 Volts A = 1/4 offset B = 1/2 offset If the measured differential pressure is expected to go from positive to negative, a transmitter with offset (elevated zero) should be ordered. Three options are available: “0” No offset. At zero differential pressure the output signal is:

0 V (0 to 5 V range)

0 V (0 to 10 V range)

Pressure excursion: 0% to 100% of Range, see Table A “A” 1/4 span offset. At zero differential pressure the output signal is:

1.25 V (0 to 5 V range)

2.5 V (0 to 10 V range)

Pressure excursion: -33% to 100% of Range, see Table A “B” 1/2 span offset. At zero differential pressure the output signal is:

2.5 V (0 to 5 V range)

5 V (0 to 10 V range)

Pressure excursion: -100% to 100% of Range see Table A To order: determine the positive pressure range; from Table A find the corresponding pressure code, then add the required offset (none, A, or B). For example, T30 05E A is a transmitter with a maximum range of 1 in (25.40 mm) of H 2O at 20 mA and a minimum range of -0.33 in of H2O at 4 mA. Com Vsup Vout 12 3 Receiver Power Supply 11 to 32 Vdc A Modus instruments, Inc. Span Zero COM Vsup Vout Pressure HiLo Terminal strip with #6 screws 5.13 in (130 mm) 4.75 in (121 mm) 4.24 in (108 mm) 3 in (76 mm) 0.19 in (4.8 mm) Pressure fittings 1.50 in (38 mm) 0.15 in (3.8 mm) 1.14 in (29 mm) 1.48 in (37.6 mm) 0.19 in (4.8 mm) Ø 2 holes Terminal 1 is common to both the DC power supply and the output signal. Terminal 2 is positive DC supply voltage. Terminal 3 is positive signal voltage.

24, 120 or 240 Vac Model T20 Specifications AC Power Input/Voltage Output Electrical Transformer isolation between power supply and output is 2500 Vrms Output Voltage

  • 0 to 5 Volts
  • 0 to 10 Volts
  • Sink or source 3.5 mA
  • Protected against short circuit

(See Table below and Reference Table A on page 8) T20 - PPP - S - V - O Example: T20 - 07P - C - X - B PPP = Pressure Range S = Supply Voltage V = Voltage Output O = Offset (See Note) See Table Reference A C = 24 VAC 5 = 0 to 5 Volts 0 = No offset D = 120 VAC X = 0 to 10 Volts A = 1/4 offset E = 240 VAC B = 1/2 offset If the measured differential pressure is expected to go from positive to negative, a transmitter with offset (elevated zero) should be ordered. Terminals 1 and 2 are AC power input. Terminals 3 and 4 are DC voltage output. Three options are available: “0” No offset. At zero differential pressure the output signal is: Pressure excursion: 0% to 100% of Range, see Table A “A” 1/4 span offset. At zero differential pressure the output signal is: Pressure excursion: -33% to 100% of Range, see Table A “B” 1/2 span offset. At zero differential pressure the output signal is: Pressure excursion: -100% to 100% of Range see Table A To order: determine the positive pressure range; from Table A find the corresponding pressure code, then add the required offset (none, A, or B). For example, T30 05E A is a transmitter with a maximum range of 1 in (25.40 mm) of H 2O at 20 mA and a minimum range of -0.33 in of H2O at 4 mA.

Two Wire / 4 to 20 mA Output Electrical

  • Supply Voltage: 11 to 32 VDC (See diagram right for maximum loop resistance)
  • Protected against reversal of polarity
  • Output limited to approx. 3.85 mA at low end of span and approx. 25 mA at upper end of span

Order Number (See Table below and Reference Table A on page 8) T30 - PPP - O Example: T30 - 06E - B PPP = Pressure Range O = Offset (See Note) See Reference Table A 0 = No offset A = 1/4 offset B = 1/2 offset If the measured differential pressure is expected to go from positive to negative, a transmitter with offset (elevated zero) should be ordered. Three options are available: “0” No offset. At zero differential pressure the output signal is: 4 mA (4 to 20 mA range) Pressure excursion: 0% to 100% of Range, see Table A Power supply voltage * Loop resistance=Wire res. + Receiver res. Loop resistance (Ohms)* 01 02 03 0 500 1000 Maximum r esistance Operating region - + + - Receiver 0 to 1050 Ohms Power Supply 11 to 32 Vac Wire Wire “A” 1/4 span offset. At zero differential pressure the output signal is: 8 mA (4 to 20 mA range) Pressure excursion: -33% to 100% of Range, see Table A “B” 1/2 span offset. At zero differential pressure the output signal is: 12 mA (4 to 20 mA range) Pressure excursion: -100% to 100% of Range see Table A To order: determine the positive pressure range; from Table A find the corresponding pressure code, then add the required offset (none, A, or B). For example, T30 05E A is a transmitter with a maximum range of 1 in (25.40 mm) of H 2O at 20 mA and a minimum range of -0.33 in of H2O at 4 mA.

AC Power Input / 4 to 20 mA Output Electrical

  • Transformer isolation between power supply and output is 2500 Vrms
  • Receiver resistance can be from 0 to 600 W
  • Output limited to approx. 27 mA at the upper end of span

(See Table below and Reference Table A on page 8) T40 - PPP - S - O Example: T40 - 03M - E - B PPP = Pressure Range S = Supply Voltage O = Offset (See Note) See Reference Table A C = 24 VAC 0 = No offset D = 120 VAC A = 1/4 offset E = 240 VAC B = 1/2 offset If the measured differential pressure is expected to go from positive to negative, a transmitter with offset (elevated zero) should be ordered. Three options are available: “0” No offset. At zero differential pressure the output signal is: 4 mA (4 to 20 mA range) Pressure excursion: 0% to 100% of Range, see Table A “A” 1/4 span offset. At zero differential pressure the output signal is: 8 mA (4 to 20 mA range) Pressure excursion: -33% to 100% of Range, see Table A “B” 1/2 span offset. At zero differential pressure the output signal is: 12 mA (4 to 20 mA range) Pressure excursion: -100% to 100% of Range see Table A To order: determine the positive pressure range; from Table A find the corresponding pressure code, then add the required offset (none, A, or B). For example, T30 05E A is a transmitter with a maximum range of 1 in (25.40 mm) of H 2O at 20 mA and a minimum range of -0.33 in of H2O at 4 mA. Nominal Input Voltage Power Consumption Operating Voltage Range 24 VAC, 50/60Hz 1.5 W 20 to 30 VAC 120 VAC, 50/60Hz 1.5 W 100 to 140 VAC 240 VAC, 50/60Hz 1.5 W 200 to 260 VAC

Table A - Standard Pressure Ranges English Metric Units Pressure Pressure Maximum Pressure Pressure Maximum Pressure Pressure Maximum Range Safe Momentary Range Safe Momentary Range Safe Momentary Code English Overpressure Code Pascals Overpressure Code Pascals Overpressure 03E 0 to 0.300 in H20 03P 0 to 75.0 Pa 03M 0 to 7.50 mm H20 04E 0 to 0.500 in H20 04P 0 to 100.0 Pa 04M 0 to 10.00 mm H20 05E 0 to 1.00 in H20 05P 0 to 250 Pa 05M 0 to 25.0 mm H20 06E 0 to 2.00 in H20 20 in H20 06P 0 to 500 Pa 5 kPa 06M 0 to 50.0 mm H20 500 mm 07E 0 to 3.00 in H20 07P 0 to 750 Pa 07M 0 to 75.0 mm H20 08E 0 to 5.00 in H20 08P 0 to 1.00 kPa 08M 0 to 100 mm H20 09E 0 to 10.0 in H20 5 psid 09P 0 to 2.50 kPa 35 kPa 09M 0 to 250 mm H20 3.5 m AAS-920-362D-03/2014 www.amphenol-sensors.com © 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice. Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners. Amphenol Advanced Sensors www.telaire.com