Key Features Of The Titan TPTLRa Low Range Pressure Transmitter
Accurate Low-Pressure Measurement
Ten gauge ranges from 70 mbar to 20 bar, with other ranges available on request.Sensitive Silicon Sensing Element
Silicon piezo-resistive technology delivers high resolution and stability at low pressures.Temperature-Compensated Analog Output
Microprocessor conditioning corrects for temperature and non-linearity to keep readings consistent.Choice Of Output Signals
4-20 mA, 0-5 V, 1-5 V, 0-10 V or 0.5-4.5 V ratiometric to suit your control or logging system.High Accuracy Options
≤ ±0.25% or ≤ ±0.10% FS, with long term stability of ≤ ±0.10% FS.Fast Response Under 10 ms
Suitable for control loops and for tracking changing pressures in pneumatic and process systems.
Applications For Low Range Pressure Transmitters
The TPTLRa brings industrial-grade signals to low-pressure measurement tasks such as:
- HVAC and building services – filter, fan and low-pressure air system monitoring.
- Pneumatic systems – low-pressure air supply, actuator and valve monitoring.
- Tank and vessel level – hydrostatic level measurement in shallow tanks and sumps.
- OEM equipment – blowers, vacuum-assist, dosing and filtration systems.
- Laboratory and research testing – stable readings for experiments and quality checks.
- Medical device development – respiratory and fluid-delivery prototypes.
- Battery-powered data loggers – the ratiometric version draws minimal power.
- Aerospace and automotive testing – low-pressure fuel, intake and environmental test rigs.
How The Titan TPTLRa Low Range Pressure Transmitter Works
Measuring low pressures accurately requires a sensing element with high sensitivity. The TPTLRa uses a silicon piezo-resistive chip that responds strongly to small changes in pressure transmitted through its stainless steel wetted diaphragm. An onboard microprocessor amplifies the bridge signal, compensates for temperature and non-linearity, and scales the result to the selected analog output.
This makes the TPTLRa a plug-and-play solution for low-pressure measurement: no external amplifier, no separate signal conditioner, just a ready-to-use signal for your control or monitoring system. For applications that need a passive mV output instead, the Titan TPTLR transducer uses the same sensing technology.
Output Options And Supply Voltages
Every TPTLRa is supplied with one of the following outputs, each with its own supply voltage range:
| Output | Wiring | Supply Voltage |
|---|---|---|
| 4-20 mA | 2-wire | 10 to 32 VDC |
| 0-5 V, 1-5 V or 0-10 V | 3-wire | 13 to 32 VDC |
| 0.5-4.5 V ratiometric | 3-wire | 2.7 to 5.5 VDC |
Electrical And Process Connections
- M12 x 1, 4-pin connector – IP65
- Mini DIN 43650 right-angle plug and socket
- Screened PVC cable outlet – IP65
- MIL-C style bayonet connector – IP67
- Process ports – G1/4 male or female, 1/4 NPT male and 7/16-20 UNF (SAE #4)
Titan TPTLRa Low Range Pressure Transmitter Technical Specifications
| Specification | Detail |
|---|---|
| Product Type | Amplified analog low range pressure transmitter |
| Sensor Technology | Silicon piezo-resistive |
| Pressure Reference | Gauge (other references on request) |
| Pressure Ranges | 70, 200, 350, 700, 1000 mbar; 2, 3.5, 7, 10, 20 bar (other ranges on request) |
| Safe Overpressure | 1.5 x rated range |
| Burst Pressure | 3 x rated range |
| Accuracy | ≤ ±0.25% or ≤ ±0.10% FS (range dependent) |
| Long Term Stability | ≤ ±0.10% FS |
| Output Options | 4-20 mA (2-wire); 0-5 V, 1-5 V, 0-10 V (3-wire); 0.5-4.5 V ratiometric (3-wire) |
| Supply Voltage | 10 to 32 VDC (4-20 mA); 13 to 32 VDC (voltage); 2.7 to 5.5 VDC (ratiometric) |
| Response Time | < 10 ms |
| Thermal Zero Shift (TZS) | ±0.02% FS/°C typical |
| Thermal Span Shift (TSS) | < -0.015%/°C typical |
| Media Temperature | -40 to +125 °C |
| Ambient Temperature | -20 to +85 °C |
| Storage Temperature | -20 to +80 °C |
| Wetted Materials | 303 and 316 stainless steel, Viton (FKM) seal |
| Permissible Media | Liquids and gases compatible with the wetted materials |
| Process Connections | G1/4 DIN 3852 male or female, 1/4 NPT male, 7/16-20 UNF-2A male (SAE #4, J514) |
| Electrical Connections | M12 x 1 4-pin, mini DIN 43650, screened PVC cable outlet, MIL-C style |
| Ingress Protection | IP65 (M12, cable outlet), IP67 (MIL-C style) |
| Accessories | Straight and right-angle M12 cordsets, temperature reducing adaptor |
Titan TPTLRa Low Range Pressure Transmitter FAQs
What is the difference between the TPTLR and the TPTLRa?
Both use the same silicon sensing technology for low ranges. The TPTLR provides a passive mV/V output for use with external electronics, while the TPTLRa includes signal conditioning to deliver a 4-20 mA, voltage or ratiometric output.
What is the lowest range available?
The lowest standard range is 70 mbar gauge (about 1 psi). Other ranges can be supplied on request.
Can the TPTLRa be used for tank level measurement?
Yes. Because hydrostatic pressure rises with liquid depth, a low range transmitter mounted at the base of a tank can provide continuous level measurement. A 70 mbar range corresponds to roughly 0.7 m (about 28 in) of water.
Which output is best for battery-powered data loggers?
The 0.5-4.5 V ratiometric version runs from 2.7 to 5.5 VDC and is designed for low-power logging applications.