Keller 35 X HT / HTT pressure transmitters for bio-reactors and autoclaves, compensated to 150 °C, −1 to 30 bar
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Quick overview
- Type: Pressure transmitters
- Signal / Protocol: 4–20 mA, RS-485, Voltage
- 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-1546 |
| Category | Oil & Gas Instruments |
| Group | Instrumentation & Control |
| Brand | Keller |
| Model | 35 X HT / 35 X HTT |
| Technical | |
| Type | Pressure transmitters |
| Signal / Protocol | 4–20 mA, RS-485, Voltage |
| Hazardous area | General purpose |
Datasheet
Technical features
| For bio-reactors and autoclaves | may be operated continuously or sterilised at 150 °C |
|---|---|
| Micro-machined silicon sensor with on-chip temperature sensor; polynomial compensation in a microprocessor (16-bit A/D) | |
| Digital RS485 on all versions; up to 128 transmitters on one bus | |
| Analog output re-rangeable with PROG30 software; output rate 100 Hz | |
| 35 X HT with manometer-type port; 35 X HTT with G½ connection | |
Applications
| Bio-reactor and fermenter pressure | |
| Autoclave and sterilisation pressure monitoring | |
| High-temperature process pressure |
Key specifications
| Ranges | −1, 1, 3, 10, 30 bar (absolute or gauge); intermediate ranges by spreading |
|---|---|
| Accuracy | Error band 0.15% FS digital, 0.2% FS analog (20–120 °C) |
| Output | RS485 + 4–20 mA (2-wire) or 0–10 V (3-wire) |
| Supply | 8–28 V DC (13–28 V for 0–10 V) |
| Temperature | Operating −20 to 150 °C (sterilisable); electronics max. 120 °C |
| Wetted materials | 316L stainless steel, Viton |
Specification
| Ranges / overpressure | −1/1/3/10/30 bar; overpressure 2/2/5/20/60 bar |
|---|---|
| Error band (20–120 °C) | 0.15% FS (RS485); 0.2% FS (4–20 mA or 0–10 V) |
| Resolution | 0.002% FS |
| Output rate | 100 Hz |
| Long-term stability | 2 mbar (≤ 2 bar); 0.2% FS (> 2 bar) typ. |
| Load | 4–20 mA: < (U − 7 V) / 0.02 A; 0–10 V: > 5 kΩ |
| Electrical connection | Binder 723 or MIL C-26482 plug |
| Temperature | Storage/operating −20 to 150 °C; electronics max. 120 °C |
| Endurance | 10 million cycles; vibration 20 g (5–2,000 Hz); shock 20 g |
| Protection | IP65 (IP67 / IP68 optional) |
| Wetted materials | 316L (1.4435), Viton |
| Weight | ≈ 280 g |
| Options | Programmable switch output; special calculations; other materials, oil fillings, threads or connectors |
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 35 X HT and 35 X HTT are digitally compensated pressure transmitters for bio-reactors and autoclaves, compensated up to 150 °C and able to run continuously or be sterilised at that temperature. Ranges from −1 to 30 bar (absolute or gauge) are covered with an error band of 0.15% FS (digital) or 0.2% FS (analog) between 20 and 120 °C.
Every unit has an RS485 interface, plus a 4–20 mA or 0–10 V output at 100 Hz that can be re-ranged with PROG30 software. Wetted parts are 316L stainless steel, with a manometer-type port (HT) or G½ thread (HTT).
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.
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