The TDEPD Field-Programmable Pressure Switch/Transducer with Integrated LED Display
DESCRIPTION
What makes the patented TDEPD Series stand apart is the unique LED display - which allows for 360° scrolling, or you can lock the display in one location. It also features field-programmable set points and hysteresis.
Because it is built on Transducers Direct’s TD1000 technology, the TDEPD Series incorporates redundant sensing elements,allowing for notification that the sensor needs to be replaced should one of the sensing elements fail (maintenance mode), eliminating operational downtime.
The TDEPD Series pressure switch/transducer comes standard with one digital output and optional analog output available. Unit operates from 10.5 to 28 VDC, and is IP67 certified.
FEATURES
• Maintenance Mode (redundant sensing notification)
• Power supply: 10.5 VDC to 28 VDC
• 4-digit, bi-color display (red or green)
• Display: 360 ° scrolling or lock in location
• Pressure port: ¼-inch NPT, 7/16-20 UNF, G 1/4
• Digital outputs : 250 mA max (PNP) or 200 mA max (NPN), and/or optional analog output: up to 10 VDC or up to 20 mA (field selectable)
• Wide variety of pressure ranges up to 10K psig
• Spike Monitoring Technology™ (SMT)
SPECIFICATIONS
Performance | Performance @ 25°C (77°F) |
Accuracy | 0.5% of maximum operating pressure |
Overange Protection | 2x Rated Pressure or optional 4x and 10x |
Pressure Range | see ordering chart - up to 10,000 psi (689 bar) |
Burst Pressure | 5x or 20,000 psi, whichever is less |
Pressure Cycles | >100 million |
Update Time | <=1msec |
Environmental Data | |
Temperature | |
Compensated Temperatures | -40 to 85°C (-40 to 185°F) |
Operating Temperatures | -40 to 100°C (-40 to 212°F) |
Storage | -40 to 125°C (-40 to 257°F) |
TEB | 1% BFSL (includes:Non-linearity, Hysteresis and Non-repeatability), analog output |
Long Term Drift | 0.2% FS/year (non-cumulative) |
Shock | 50g, 11 ms, 1/2 sine |
Vibration | 10g, peak, 20 to 2400 Hz |
EMI/FRI Protection | Yes |
Rating | Up to IP-67 |
Mechanical Configuration | |
Pressure Connections | 1/4” NPT Male, 7/16-20 UNF, G1/4 Male |
Wetted Material | 17-4PH stainless steel (for other materials consult factory) |
Electrical Connection | M12 (5-pin) |
Case | (housing) 304 stainless steel and high-impact polycarbonate (display) |
Electrical Data | |
Power Supply | 10.5-28VDC |
Switch/Analog Output | 10.5 VDC to 28 VDC at 250 mA max (PNP) or 200 mA max (NPN) (digital), Field-programmable-- voltage up to 10 VDC or current up to 20mA |
Output Impedance | <100 Ohms, Nominal |
Current Consumption | 30 mA @ 24 V / voltage output 40 mA @ 12 V / voltage output 50 mA @ 24 V / current output 60 mA @ 12 V / current output |
Output Noise | <2mV RMS |
Reverse Polarity Protection | Yes |
Set Points | No set points in vacuum range, 5 psi min set point with <100 psi range, 10% of configured pressure min set point with > 100 psi range |
Spike Counter | Press button # 1 for 10 seconds to view quantity of pressure spikes and the highest spike seen. |
Zero/Tare display | Press button #2 for 10 sec. If the pressure reading on the display is between -14.7 and 128 psi, the display will change to zero (0). If pressure is above 128 psi, display will not change. |