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Rosemount
Rosemount 1057 Triple Channel Transmitter
Quote on request
No online payment · add lines to RFQ BOM
Triple-channel analyzer; pH/ORP/cond; 4× mA; IP65. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Up to three independent liquid analytical channels: contacting conductivity/resistivity and/or pH/ORP/ISE (modular boards)
Accuracy
Linear conductivity with on-board concentration curves; auto pH buffer detection for faster calibration (sensor-dependent)
Output
Analog current outputs (wire size 26–16 AWG) plus four programmable Form-C alarm relays
Supply
02: 20–30 Vdc 15 W; 03: 84–265 Vac 47–63 Hz 15 W (both include four alarm relays)
Protection
Type 4X / IP65 polycarbonate enclosure
Ambient temperature
0 to 55 °C (32 to 131 °F); turbidity option 0 to 50 °C; storage −20 to 60 °C; RH 5–95% non-condensing
Fits multi-parameter liquid analysis panels where you need a Rosemount 1057 with up to three isolated pH/ORP/ISE or contacting-conductivity inputs, four 0/4–20 mA outputs, and a ½ DIN IP65 enclosure.
Key advantages
- Inputs — Up to 3 isolated pH/ORP/ISE and/or contacting conductivity
- Outputs — Four isolated 0/4–20 mA; four alarm relays
- Display — 3.8 in backlit 128×96 graphic LCD
- Enclosure — Polycarbonate Type 4X / IP65; ½ DIN
- Power — 20–30 VDC or 84–265 VAC; Quick Start + SMART pH
Typical applications
- Multi-loop water-treatment panels.
- pH + conductivity combinations.
- Panel-space-saving triple analyzers.
Selection guide
- Board mix — pH vs conductivity channels
- Power — AC vs 24 VDC
- Mount — Panel/pipe/wall
- SMART pH — Sensor family
Common mistakes
- Ordering dual 1056 when three channels are required.
- Wrong board codes for measurements.
- Ignoring ½ DIN cutout dimensions.
When to RFQ / what to tell us
- Channel board codes, power, mount.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 30755 |
| Brand | Rosemount / Emerson |
| Model | 1057 |
| Product type | Liquid Analysis Transmitter |
| Type | Triple-channel liquid analysis transmitter |
| Inputs | Up to 3 isolated inputs: pH/ORP/ISE and/or contacting conductivity/resistivity |
| Outputs | Four isolated 0/4–20 mA; four alarm relays |
| Display | 3.8 in backlit 128×96 graphic LCD; customizable multi-measurement view |
| Enclosure | Polycarbonate Type 4X / IP65; ½ DIN (155×155×131 mm) |
| Power | 20–30 VDC or 84–265 VAC (15 W class) |
| Features | Quick Start; modular auto-recognized boards; SMART pH support; concentration curves |
Documents
FAQ
Q: How many inputs? A: Up to three isolated sensor inputs.
Q: Outputs? A: Four isolated 0/4–20 mA plus four relays.
Q: What should I send for a quote? A: Board/power/mount, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Up to three independent liquid analytical channels: contacting conductivity/resistivity and/or pH/ORP/ISE (modular boards) |
| Accuracy | Linear conductivity with on-board concentration curves; auto pH buffer detection for faster calibration (sensor-dependent) |
| Output | Analog current outputs (wire size 26–16 AWG) plus four programmable Form-C alarm relays |
| Supply | 02: 20–30 Vdc 15 W; 03: 84–265 Vac 47–63 Hz 15 W (both include four alarm relays) |
| Protection | Type 4X / IP65 polycarbonate enclosure |
| Ambient temperature | 0 to 55 °C (32 to 131 °F); turbidity option 0 to 50 °C; storage −20 to 60 °C; RH 5–95% non-condensing |
| Display | User-customizable monochrome backlit graphic LCD, 128×96, 3.8 in diagonal |
| Approvals | CSA/FM Class I Div 2 A–D, Class II Div 2 E–G, Class III T4A Tamb=50 °C; UL option |
| Notes | Transmitter-only SKU. Specs from Emerson Rosemount 1057 PDS 00813-0100-3157 Rev AA + QSG 00825-0100-3157. |
| Dimensions | 155 × 155 × 131 mm (6.10 × 6.10 × 5.45 in); ½ DIN panel cutout 139 × 139 mm; min panel depth 101.6 mm |
| Weight | 3 lb / shipping 4 lb (1.5 / 2.0 kg) |
| Special Features | Quick Start programming; auto-recognition of sensor boards; displays process + temperature + diagnostics |