Rosemount 1057 three-channel liquid analysis transmitter, pH/ORP/ISE and contacting conductivity, four 0/4–20 mA outputs, alarm relays
Pricing depends on specification, quantity and delivery location. Send your requirement and we reply with a costed quotation within 24 hours.
Quick overview
- Type: Analyser / transmitter
- Signal / Protocol: 4–20 mA, Relay / switch
- Hazardous area: Hazardous-area rated / option
- 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-1634 |
| Category | Liquid Analysis (pH, ORP & Conductivity) |
| Group | Instrumentation & Control |
| Brand | Rosemount |
| Model | 1057 |
| Technical | |
| Type | Analyser / transmitter |
| Signal / Protocol | 4–20 mA, Relay / switch |
| Hazardous area | Hazardous-area rated / option |
Datasheet
Technical features
| Up to three independent pH/ORP or contacting conductivity measurements in one ½ DIN unit, reducing cost per loop | |
| Isolated inputs prevent interference between channels | |
| Field-replaceable measurement boards, auto-recognised | |
| Quick Start programming and automatic pH buffer recognition | |
| On-board concentration curves for common acids and bases | |
| Back-lit display shows three measurements plus temperatures and diagnostics |
Applications
| Multi-point pH and conductivity monitoring in water and wastewater treatment | |
| Cooling tower and boiler water chemistry | |
| Process liquid monitoring in pulp & paper, chemical and food plants |
Power
| Option 02 | 20–30 V DC, 15 W |
|---|---|
| Option 03 | 84–265 V AC, 47–63 Hz, 15 W |
Approvals
| Hazardous locations | Class I Div 2 Groups A–D; Class II Div 2 Groups E–G; Class III; T4A, Tamb 50 °C |
|---|---|
| Ordinary locations | UL listed (UL option) |
| EMC / safety | EN 61326; EN 61010-1 |
Key specifications
| Inputs | Up to 3 channels: pH/ORP/ISE or contacting conductivity |
|---|---|
| Outputs | 0/4–20 mA analog outputs; 4 alarm relays SPDT 5 A |
| Power | 20–30 V DC or 84–265 V AC switching |
| Enclosure | Polycarbonate, Type 4X / IP65, ½ DIN |
| Approvals | Class I/II Div 2 (CSA/FM option); UL ordinary locations option |
Measurements
| Channel 1 | Contacting conductivity or pH/ORP/ISE |
|---|---|
| Channels 2 and 3 | Contacting conductivity, pH/ORP/ISE or none |
| Temperature compensation | Automatic, Pt100 or Pt1000 RTD in the sensor |
Outputs & relays
| Analog outputs | 0/4–20 mA, scalable, linear or logarithmic |
|---|---|
| Alarm relays | 4 × Form C SPDT, epoxy sealed, with interval timer settings |
| Relay rating (resistive) | 5 A at 28 V DC, 115 V AC or 230 V AC |
| Inductive load | 1/8 HP motor max. at 115/230 V AC |
Housing & environment
| Enclosure | Polycarbonate, Type 4X, IP65 |
|---|---|
| Dimensions | 155 × 155 × 131 mm |
| Conduit openings | ½ in or PG 13.5 |
| Display | Back-lit graphic LCD, 128 × 96 pixels, 3.8 in |
| Ambient temperature | 0 to 55 °C |
| Storage temperature | −20 to 60 °C |
| Relative humidity | 5–95%, non-condensing |
| Weight | 1.5 kg (shipping 2.0 kg) |
Notes
| Data from the manufacturer's published datasheet. Confirm model, range, materials and approvals with Argonmark before ordering. |
Description
The Rosemount 1057 is a ½ DIN transmitter that measures up to three liquid parameters at once, in any combination of pH/ORP/ISE and contacting conductivity. Its inputs are isolated from each other, the measurement boards are field-replaceable and auto-recognised, and the back-lit display shows all three readings with temperatures and diagnostics.
It runs on 20–30 V DC or 84–265 V AC, provides 0/4–20 mA outputs and four 5 A SPDT alarm relays, and is housed in a polycarbonate Type 4X/IP65 enclosure for panel, wall or pipe mounting. A Class I Div 2 approval is available for hazardous locations.
Argonmark Ltd supplies Rosemount instruments across Bangladesh — to pulp and paper mills, water and effluent treatment plants, chemical, textile, food and power plants in Dhaka, Chattogram, Gazipur, Narayanganj and beyond. Send us the model, measuring range, process connection, wetted materials and output you need, and we will confirm the right configuration, lead time and price.
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