Keller LEO 3 loop-powered pressure transmitter with digital display, 4–20 mA + RS485, −1…3 to 0…1,000 bar
Pricing depends on specification, quantity and delivery location. Send your requirement and we reply with a costed quotation within 24 hours.
Quick overview
- Type: Pressure transmitters
- Signal / Protocol: 4–20 mA, RS-485
- Hazardous area: General purpose
- Genuine productsSourced from the manufacturer or authorised channels
- Delivery across BangladeshDhaka, Chattogram and all industrial zones
- After-sales supportInstallation guidance and warranty handling
- Reply within 24 hoursCall +880 1713 552466 or email hello@argonmark.com
Specifications
| General | |
|---|---|
| Part no. | BD-1525 |
| Category | Oil & Gas Instruments |
| Group | Instrumentation & Control |
| Brand | Keller |
| Model | LEO 3 |
| Technical | |
| Type | Pressure transmitters |
| Signal / Protocol | 4–20 mA, RS-485 |
| Hazardous area | General purpose |
Datasheet
Technical features
| Microprocessor transmitter with display powered from the 4–20 mA loop | |
| Analog output scalable from the front keys (set 4 mA and 20 mA at applied pressure) | |
| RS485 Keller bus | up to 128 devices; CCS30 software for logging and configuration |
|---|---|
| Max/min, reset, zero set/restore; units bar, mbar/hPa, kPa, MPa, psi, kp/cm² | |
| Measuring rate up to 90 per second | |
Applications
| Local pressure display with 4–20 mA transmission to PLC/DCS | |
| Test benches and process skids needing both display and signal |
Key specifications
| Ranges | Relative −1…3 / −1…10 / −1…30 bar; absolute 0…4 to 0…1,000 bar |
|---|---|
| Accuracy | ≤ 0.1% FS at room temperature |
| Output | 4–20 mA 2-wire (scalable) + RS485 Keller bus |
| Supply | 8–28 V DC (loop powered) |
| Display | Dual LCD: pressure + output or min/max |
| Protection | IP65 |
Specification
| Ranges | PR −1…3, −1…10, −1…30 bar; PA 0…30, 0…100, 0…300, 0…700, 0…1,000 bar; PAA 0…4, 0…10, 0…30 bar |
|---|---|
| Overpressure | 8 / 20 / 60 / 200 / 600 / 1,100 / 1,100 bar (by range) |
| Display resolution | 1 to 200 mbar depending on range |
| Interface resolution | 0.0125% FS |
| Accuracy at room temperature | ≤ 0.1% FS (linearity, repeatability, hysteresis) |
| Compensated temperature | 0…50 °C |
| Output | 4–20 mA 2-wire / RS485 |
| Supply | 8–28 V DC |
| Measuring / display rate | Up to 90/s / 2/s |
| Connections | G¼ pressure; Binder 723 electrical (rear) |
| Protection | IP65 |
| Size / weight | 76 × 125 × 50 mm; ≈ 210 g |
Notes
| Data from the manufacturer's published datasheet. Confirm model, range, materials and approvals with Argonmark before ordering. |
Photo: courtesy of Keller, used with permission (source) — background removed by Argonmark. All photo credits
Description
The Keller LEO 3 is a pressure transmitter with a built-in two-line digital display, powered entirely from its 4–20 mA loop. It covers relative ranges from −1…3 bar and absolute ranges up to 0…1,000 bar with ≤ 0.1% FS accuracy, showing pressure on the top line and the output signal or min/max on the bottom line.
The analog output can be re-scaled from the front keys, and an RS485 Keller-bus interface connects up to 128 devices to PC software for logging and configuration. It has a G¼ connection, a rear Binder plug and an IP65 housing.
Argonmark Ltd supplies Keller instruments across Bangladesh — Dhaka, Chattogram, Gazipur, Narayanganj and the gas fields, refineries, terminals and power plants beyond. Send us the model, range, process connection, output and any hazardous-area requirement, and we will confirm the right configuration, lead time and price.
Questions & answers
Customer questions
No questions asked yet. Ask about specification, compatibility, lead time or anything else about this item.
Reviews
No reviews yet. Bought or used this item? Be the first to share your experience.
-
Pressure transmitter, 4-20mA/HART, gauge/absolute
Price on request
-
Differential pressure (DP) transmitter
Price on request
-
Pressure gauge, bourdon, SS, 63/100/150mm dial
Price on request
-
Pressure switch, adjustable
Price on request
-
Temperature transmitter, RTD/TC input, HART
Price on request
-
RTD sensor Pt100, with thermowell
Price on request