| Specifications: |
| Electrical: |
| |
Power
Options |
DC:
12 to 30 VDC, 0.07 Amps max. @ 24 VDC
R
load = (Vs–6)/24
mA |
| Output |
4-20
mA, 6.1 uA resolution
Relay: DPST, 5 Amps @ 230 VAC
Optional RS485 communications port (comes with free
software)
Note: If a converter is required,
Madison recommends B & B Electronics Model 485SD9TB |
 |
| Operational: |
| |
Accuracy |
±0.25%
of max. target range (in air) |
| Beam
Angle |
12
degrees at -3 dB |
| Loss
of Echo Hold |
1
minute (programmable 1-4 min.), 22 mA or 2 mA current
output |
| Temperature Compensation |
Onboard the sensor |
| Calibration |
Push-button or optional programmable |
| Diagnostics (Echo Profile) |
Via optional programmable port |
| High-Level
Alarm |
5
Amp relay has hystersis and delay of 5% of the
tank height;
changes at full tank calibration height |
| Range |
0.33'
to 6' (0.10m to 1.8m) |
| Resolution |
0.04"
(0.98mm) |
| Operating
Frequency |
148
kHz |
|
| Environmental: |
| |
Operating
Temperature Range |
-40°C
to 60°C (-40°F to 140°F) |
| Pressure |
1
BAR to 2 BAR |
| Installation
Category |
Class
11 |
| Approval |
CE |
|
| Mechanical: |
| |
Cable |
24
AWG, 3 pair, 60" long (1.5m)
Relay option requires 18 AWG, 3 conductor |
| Enclosure |
PVC-94V0 |
| Ingress
Protection |
NEMA
4X (IP65) |
| Mounting
Options |
Swivel
socket (cold-rolled steel); PVC flange with 3"-8
or 6"-8 NPT thread |
|
| Optional
Features: |
| |
U3M-148 |
Standard model |
| U3M-148C485 |
with communications port |
| U3M-148-R |
with relay |
| U3M-148C485-R |
with communications port and relay |
| For
higher operating temperatures, request factory
quote for a CPVC or Kynar housing. |
