System Design
| Measurement Principle |
Guided time-of-flight via time domain reflectometry |
Input
| Measurement Variable |
Level, determined by the time-of-flight of a guided radar pulse from transmitter to product surface and back |
| Zero and Span |
6 inches to 75 feet ( 15 to 2286 cm) |
User Interface
| Keypad |
3-button menu-driven data entry and system security |
| Indication |
2-line x 8-character display |
| Digital Communication |
HART, Fieldbus |
| Minimum Operating Voltage |
9 VDC |
| Quiescent Current Draw |
15 mA |
| DEV Revision |
0X01 |
| Function Blocks |
Al_1, Al_2, Al_3, Al_4 |
| Damping |
Adjustable 0-10 seconds |
Power
(Measured at instrument terminals)
| General Purpose / Explosion Proof |
9 to 32 VDC ( 15 mA maximum current draw) |
| IS/FISCO/FNICO |
9 to 32 VDC ( 15 mA maximum current draw) |
Housing
| Material |
Aluminum A356T6 (<0.20% copper), optional 316 SST |
| Cable Entry |
¾” NPT and M20 |
Environment
| Operating Temperature |
-196 to +842°F (-320 to +450°C) Model Dependent |
| Pressure |
Vacuum -14.5 to 5,800psi (Vacuum -1 to +400bar) Model Dependent |
| Display Function Operating Temperature |
-5 to +160°F (-20 to +70°C) |
| Storage Temperature |
-50 to +175°F (-40 to +80°C) |
| Humidity |
0-99%, non-condensing |
| Electromagnetic Compatibility |
Meets CE Requirements: EN 50081-2, EN 50082-2 |
| Shock Class |
ANSI/ISA-S71.03 Class SA1 |
| Vibration Class |
ANSI/ISA0S71.03 Class VC2 |
| Reference Conditions |
Reflection from water +70°F (+20°C) with 72” coaxial probe (CFD threshold) |
| Linearity |
Coaxial/Twin Rod Probes: |
<0.1% of probe length or 0.1 inch (whichever is greater) |
|
Single Rod Probes: |
<0.3% of probe length or 0.3 inch (whichever is greater) |
| Measured Error |
Coaxial/Twin Rod Probes: |
±0.1% of probe length or 0.1 inch (whichever is greater) |
|
Single Rod Probes: |
±0.5% of probe length or 0.5 inch (whichever is greater) |
| Resolution |
±0.1 inch |
| Repeatability |
<0.1 Inch |
| Hysteresis |
<0.1 Inch |
| Response Time |
<1 second |
| Warm-up Time |
<5 seconds |
| Operating Temp. Range |
-40° to +175°F (-40° to +80°C) |
| LCD Temp. Range |
-5° to +160°F (-20° to +70°C) |
| Ambient Temp. Effect |
Approximately +0.02% of probe length/ °C |
| Process Dielectric Effect |
<0.3 inch within select range |
| Humidity |
0-99%, non-condensing |
| Electromagnetic Compatibility |
Meets CE Requirements (EN-61000-6-2/2001, 61000-6-4/2001) |
