Your World Seamlessly Monitored 
Your World Seamlessly Monitored
WIRELESS RESISTIVE LEVEL TRANSMITTER – C1D1
Battery-Powered Self-Contained Level Sensing Solution
SFX-LR51 / SFX-LR53
HIGHLIGHTS
- OleumTech® field-proven technology running on the
global Sigfox Low-Power Wide Area (LPWA) network - 3-in-1 level monitoring capabilities:
Product, interface, and temperature - SFX-LR51: 1/4” resolution / ± 1/8“ accuracy
- SFX-LR53: 1/2” resolution / ± 1/4“ accuracy
- Flex (PTFE) or rigid (316 SS) sensor option, sold separately
- Sensor requires a one-time only calibration
- Highly resistant to H2S damage, scaling, and paraffin buildup
(Limited lifetime warranty, please contact your OleumTech
representative for details) - Battery life up to 8 years
- Sensor supports a wide temperature range
-40 ˚C to 120 ˚C (-40 ˚F to 248 ˚F) - A global solution – Zones RCZ1/2/4
- Remote antenna-ready option available
- Class I, Division 1 (Zone 0), Intrinsically Safe
Easiest Way to Get Data in the Cloud
The OleumTech® Sigfox Ready SFX-LR51 and SFX-LR53 Wireless Resistive Level Transmitters are designed for deployment anywhere in the world that Sigfox has network coverage. By leveraging the Sigfox Low Power Wide Area (LPWA) network, you can take advantage of the world’s leading Internet of Things (IoT) connectivity service, offering a software-based communications solution where all the network and computing complexity is managed in the Sigfox CLOUD™.
Inherently Secure
The Sigfox Ready Transmitters take advantage of the built-in firewall since they are not directly connected to the internet and do not use Internet Protocol. Layered on top of this secure foundation, OleumTech provisions each device with a unique symmetrical authentication key. Each message sent by the transmitter contains a cryptographic token that is computed based on this authentication key and verified by each Sigfox Base Station.
Designed for Use in Hazardous Locations
The Resistive Level Transmitters are certified for use in Class I, Division 1 (Zone 0) hazardous locations. They are Intrinsically Safe, designed not to cause a spark, and can be serviced without being removed from a process. These devices provide the ability monitor up to three process variables: product, interface, and temperature. The SFX-LR51 provides 1/4” measurement resolution while the SFX-LR53 offers 1/2” resolution.
Extremely Reliable
The Sigfox architecture is based on multiple base stations receiving each broadcasted and repeated message, building redundancy into the solution. Data Integrity, availability, and confidentiality are at the core of the offering.
TECHNICAL SPECIFICATIONS
| WIRELESS COMMUNICATIONS | |
|---|---|
| Sigfox Radio Zones/Regions Supported | ∙ RCZ1: Europe, Oman, South Africa | Certificate ID: P_009D_53CD_01 |
| ∙ RCZ2: USA, Canada, Mexico, Brazil | Certificate ID: P_009D_D78E_01 | |
| ∙ RCZ4: Australia, New Zealand, Colombia, Peru, Singapore | Certificate ID: P_009D_C7B7_01 | |
| Wirelessly Connects To | ∙ Sigfox Base Stations |
| Data Reporting Modes | ∙ Analog Input: On Interval or DIN State Change / Discrete Input: On Interval or DIN State Change |
| HARDWARE FEATURES | |
|---|---|
| Device Functionality | ∙ Class I, Division 1 (Zone 0) IoT Wireless Transmitter Supporting OleumTech Resistive Level Sensors |
| Embedded Controller | ∙ Ultra-Low Power RISC Microcontroller with Internal FLASH (Field Upgradeable) |
| Configuration | ∙ OleumTech Sigfox Configuration Tool via RS232 Serial |
| Model Configuration | ∙ SFX-LR51: 1/4" Resolution; Product, Interface and Temperature (8-pin Quick Connect) |
| ∙ SFX-LR53: 1/2" Resolution, Product, Interface and Temperature (6-pin Quick Connect) | |
| Resolution | ∙ Resolution Depends on Sensor Type: 1/4-inch (6.4 mm) or 1/2-inch (12.7 mm) |
| Accuracy | ∙ 1/4" Resolution Sensor: ±1/8" Accuracy; 1/2" Resolution Sensor: ±1/4" Accuracy, Temperature: ± 1 ˚C |
| ∙ 6.4 mm Resolution Sensor: ±3.2 mm Accuracy; 12.7 mm Resolution Sensor: ±6.4 mm Accuracy | |
| Reportable Values | ∙ Product Level / Interface Level / Temperature Level / Battery Voltage |
| Device Diagnostics | ∙ Health Tag: Battery Voltage |
| MECHANICAL SPECIFICATIONS | |
| Dimensions | ∙ 5" (W) x 7.9" (H) x 4.4" (D) / 127 mm (W) x 201 mm (H) x 112 mm (D) |
| Package Dimensions | ∙ 10.25" (W) x 14" (H) x 6.5" (D) / 260mm (W) x 356mm (H) x 165mm (D) |
| Weight | ∙ Net: 4 lbs / 1.8 kg; Gross: 7 lbs / 3.2 kg |
| Connection Fittings | ∙ Quick Connect Adapter to Sensor - No Wiring Required (SFX-LR51: 8-pin / SFX-LR53: 6-pin) |
| Enclosure Casing Material | ∙ Aluminum, NEMA 4X, IP66 |
| Mounting Holes | ∙ (4) M5 Female Threads; Horizontal Spacing: 2.76" (70 mm); Vertical Spacing: 3.70" (94 mm) |
| ELECTRICAL SPECIFICATIONS | |
| Power Source | ∙ SX1000-BP3, Internal 3.6 Vdc Lithium Battery |
| Internal Battery Life | ∙ Up to 8 Years, Based on User Defined Reporting Intervals |
| SENSOR | RIGID: 316 Stainless Steel "SS" | FLEX: Polytetrafluoroethylene "PTFE" |
|---|---|---|
| Type | Extremely Reliable and Accurate Resistive Reed Switch Technology | |
| Measurement Capabilities (3-in-1) | Product, Interface, and Temperature | Product, Interface, and Temperature |
| Lengths Offered in US Units | 2 to 26 ft Length in 1 ft Increments | 8 to 38 ft Length in 1 ft Increments |
| Lengths Offered in Metric | 0.61 to 7.93 m in 0.31 m increments | 2.44 to 11.58 m in 0.31 m increments |
| Resolution and Accuracy | Option 1: 1/2-inch (12.7 mm) Resolution with ±1/4-inch ( ±6.4 mm) Accuracy (6-pin Quick Connect) | |
| Option 2: 1/4-inch (6.4 mm) Resolution with ±1/8-inch (±3.2 mm) Accuracy (8-pin Quick Connect) | ||
| Sensor to Interface Mating Connection (No Wiring Solution) | 316 SS Quick Connect: 6-pin Connection for 1/2" Resolution, 8-pin Connection for 1/4" Resolution | |
| Tank Mating Connection (Adjustable Compression Fitting) | 2-15 ft: 3/4" NPT Male / 16-26 ft: 1" NPT Male | 1" NPT Male |
| Temperature Accuracy | ±1 °C | ±1 °C |
| Sensor Rod/Tubing Diameter | 0.63" (16 mm): 2-15 ft Sensor | 0.85" (22 mm) |
| 0.85" (22 mm): 16-26 ft Sensor | ||
| Anchor Weight Diameter | N/A | 2.88" / 73 mm |
| Height of Anchor Weight | N/A | Up to 26 ft sensor: 4.75" / 121 mm |
| 26 - 38 ft sensor: 8" / 203 mm | ||
| Coiled Diameter | N/A | 20" (50.8 cm) Coiled Diameter |
| Minimum Measurement from Bottom (Deadband) | 2" (50.8 mm) from Bottom | From Top of Anchor Weight |
| Sensor Pressure Rating | Float Dependent | Float Dependent |
| 316 Stainless Steel - Standard (Included w/Rigid <=15 ft | 440 PSI / 30 Bar | N/A |
| 316 Stainless Steel - Large | 363 PSI / 25 Bar | 142 PSI / 9.8 Bar |
| Polypropylene (PP) (Inc. w/Flex and w/Rigid >=16ft | 72 PSI / 5 Bar | 72 PSI / 5 Bar |
| Float Options: | ||
| 316 Stainless Steel - Standard, 440 PSI/30 Bar | Compatible Only with Rigid Sensor Length up to 15 ft Prod: 0.64 SG, Intf: 0.96 SG, ID 0.72" (18.3 mm) | |
| OD 2.05" (52.1 mm), Inner Clearance: 0.1" (2.6 mm) | ||
| 316 Stainless Steel - Large, 363 PSI/25 Bar | Product: 0.62 SG, Interface: 0.95 SG, ID 1.1" (27.9 mm), OD 2.76" (70.1 mm), Inner Clearance: 0.5" (12.7 mm) | |
| Polypropylene (PP), 72 PSI/5 Bar | Product: 0.64 SG, Interface: 0.96 SG, ID 1.1" (27.9 mm), OD 2.91" (73.9 mm), Inner Clearance: 0.5" (12.7 mm) | |
| Operating Temp. Sensing Area | -40 °F to 248 °F (-40 °C to 120 °C) | -40 °F to 248 °F (-40 °C to 120 °C) |
| Certifications | Class I, Division 1, Groups C, D T4; Ex ia IIB T4 Ga; Class I, Zone 0, AEx ia IIB T4 Ga, -40 °C ≤ Tamb ≤ 70 °C | |
| ATEX: Sira 16ATEX2229X; Ex ia IIB T4 Ga, -40 °C ≤ Tamb ≤ 70 °C | ||
| IECEx: SIR 16.0079X; Ex ia IIB T4 Ga, -40 °C ≤ Tamb ≤ 70 °C | ||
| Power (Wireless) | 3.6 V Lithium Replaceable Battery Pack, 10-Year Life @ 1 min Read Interval | |
| Wireless Compatibility | OTC - WT / SM Series Resistive Transmitters and Sigfox-enabled Resistive Transmitters | |
| Minimum Sensor Read Interval | Down to 5 Seconds | |
| Model #: 1/2" Resolution with ±1/4-inch Accuracy | 60-4001-xxx | 60-4101-xxx |
| Model #:1/4" Resolution with ±1/8-inch Accuracy | 60-4101-xxx | 60-4102-xxx |
| Kit #: 1/2" Resolution with Float(s) | ZG-xxx-Fxx | TG-xxx-Fxx |
| Kit #: 1/4" Resolution with Float(s) | ZH-xxx-Fxx | TH-xxx-Fxx |
| SENSOR COMPATIBILITY | |
|---|---|
| 1/2" Sensor Kits w/Float(s) | 1/2" TG-xxx-Fx-x (Flex) and ZG-xxx-Fx-x (Rigid) Works with LR13, LR13-P, LR53, LR53-P |
| 1/4" Sensor Kits w/Float(s) | 1/4" TH-xxx-Fx-x (Flex) and ZH-xxx-Fx-x (Rigid) Works with LR11, LR11-P, LR51, LR51-P |
| Flex Sensor Part # | Flex 1/2": 60-4101-xxxx; Flex 1/4": 60-4102-xxxx |
| Rigid Sensor Part # | Rigid 1/2": 60-4001-xxxx; Rigid 1/4": 60-4002-xxxx |
| CERTIFICATIONS & COMPLIANCE | |
|---|---|
| EMC/EMI | ∙ FCC Part 15 (USA), IC ICES-003 (Canada), ACMA (Australia) |
| Safety | ∙ Class I, Division 1, Groups A, B, C, D T3C; Ex ia IIC T3 |
| ∙ Class I, Zone 0; AEx ia IIC T3 | |
| ∙ ATEX: Sira 13ATEX2142X; Ex ia IIC T3 Ga; II 1 G | |
| ∙ IECEx: SIR 13.0054X; Ex ia IIC T3 Ga |
| GENERAL SPECIFICATIONS | |
|---|---|
| Operating Conditions | ∙ Ambient Temperature (Class I, Division 1 / Zone 0): -40 °C to 70 °C (-40 °F to 158 °F) |
| ∙ Ambient Temperature (ATEX/IECEx): -30 °C to 70 °C (-22 °F to 158 °F) | |
| ∙ Humidity: 0 to 99 %, Non-Condensing | |
| Warranty | ∙ 2-Year Parts and Labor |
| Country of Origin | ∙ USA |
| ORDERING INFORMATION | |
|---|---|
| Model Number(s) | ∙ RCZ1: SFX-RCZ1-LR51 (1/4" Resolution / 8-pin) | SFX-RCZ1-LR53 (1/2" Resolution / 6-pin) |
| ∙ RCZ2: SFX-RCZ2-LR51 (1/4" Resolution / 8-pin) | SFX-RCZ2-LR53 (1/2" Resolution / 6-pin) | |
| ∙ RCZ4: SFX-RCZ4-LR51 (1/4" Resolution / 8-pin) | SFX-RCZ3-LR53 (1/2" Resolution / 6-pin) | |
| Model Number(s) for Remote Antenna-Ready Option | ∙ RCZ1: SFX-RCZ1-LR51-P (1/4" Resolution / 8-pin) | SFX-RCZ1-LR53-P (1/2" Resolution / 6-pin) |
| ∙ RCZ2: SFX-RCZ2-LR51-P (1/4" Resolution / 8-pin) | SFX-RCZ2-LR53-P (1/2" Resolution / 6-pin) | |
| ∙ RCZ4: SFX-RCZ4-LR51-P (1/4" Resolution / 8-pin) | SFX-RCZ4-LR53-P (1/2" Resolution / 6-pin) | |
| Battery Model Number | ∙ Use Only SX1000-BP3, 3.6 V Lithium Battery Pack |
| Configuration Cable | ∙ SX1000-CC2, 20-ft All-in-One Configuration Cable |
WIRELESS RESISTIVE LEVEL TRANSMITTER –
C1D1
SFX-LR51 / SFX-LR53
HIGHLIGHTS
- OleumTech field-proven technology running on the global Sigfox Low-Power Wide Area (LPWA) network
- 3-in-1 level monitoring capabilities: product , interface, and temperature
- SFX-LR51: 1/4” resolution API 18.2 compliant ± 1/8“ accuracy
- SFX-LR53: 1/2” resolution
- Flex (PTFE) or rigid (316 SS) sensor option
Sensor sold separately - “Set it and forget it” one-time calibration
- Powered by a replaceable internal battery pack
- Battery life up to 8 years
- NEMA 4X / IP66 / -40 °C to 70 °C
- Industrially-hardened self-contained design
- Remote antenna-ready option available
- Intrinsically Safe, Class 1, Division 1 (Zone 0) certified