Description
Safe and precise measurement with the Schischek ExCos-D transmitter
The Schischek ExCos-D explosion-proof analog transmitter is specifically designed for the safe and precise measurement of temperature and/or humidity in explosive environments within ATEX zones 1, 2, 21 and 22. This versatile transmitter works in combination with Schischek ExPro-C sensors and delivers optimal performance for applications in HVAC systems, pharmaceutical facilities, the chemical industry, and offshore/onshore environments.
Thanks to the universal power supply (24 VAC/DC) and the selectable analog output signals (0…10 V / (0)4…20 mA), you can integrate this transmitter flexibly into your installation. The integrated Ex-e terminal box eliminates the need for additional Ex-i modules and intrinsically safe wiring. In addition, all parameters can be set easily on site, without any additional tools or measuring equipment. The illuminated, switch-offable display also ensures optimal readability of current values.
Why choose the Schischek ExCos-D?
- ATEX certified (2014/34/EU) for safe use in explosive atmospheres
- Combination with ExPro-C sensors for room or duct mounting
- Flexible analog output, configurable on site: 0…10 V / (0)4…20 mA
- No intrinsically safe wiring required, making installation simpler and faster
- Integrated illuminated display, easy to operate and switch off
- IP66 protection rating, resistant to harsh environmental conditions
- Robust aluminum housing, optionally available in stainless steel or with offshore coating
- Compact and space-saving, ideal for limited installation spaces
- All parameters can be configured on site without additional tools or measuring equipment
- Optionally available in stainless steel or with offshore/marine coating
Technical specifications
| Property | Specification |
|---|---|
| Product type | Explosion-proof temperature and/or humidity transmitter |
| Suitable for zones | ATEX Zone 1, 2 (gas) and Zone 21, 22 (dust) |
| Power supply | Universal AC/DC 24 V (±20%), 50/60 Hz |
| Analog output signals | Selectable 0…10 V / (0)4…20 mA |
| Integrated display | 2×16 characters, illuminated and switch-offable |
| Settings | Configurable on site without additional tools |
| Housing | Robust aluminum, optionally stainless steel or offshore coating |
| Protection class | IP66 |
| Ambient temperature | -20°C to +50°C |
| Certifications | ATEX (2014/34/EU), IECEx, CE, EAC |
| Sensor connection | Connector for ExPro-C sensors (room or duct) |
| Housing dimensions (L×W×H) | Aluminum: 180×107×66 mm, stainless steel: 195×127×70 mm |
| Weight | Aluminum ~950 g, stainless steel ~2.5 kg |
Easy and quick installation
The Schischek ExCos-D can be installed quickly via the integrated Ex-e terminal box, without additional intrinsically safe modules or complex wiring. This saves valuable installation time. All parameters can be easily set via the clear display and user-friendly buttons.
Frequently asked questions (FAQ)
Can I install this transmitter outdoors?
Yes, thanks to the robust IP66 housing, this transmitter is fully suitable for outdoor use, even under harsh conditions.
Is intrinsically safe wiring required?
No, additional Ex-i modules and intrinsically safe wiring are not required. This significantly simplifies your installation process.
Which sensors can I connect?
You can connect only Schischek ExPro-C sensors for temperature and/or humidity measurement. These sensors are specifically designed for safe and accurate measurements in ATEX environments.
| Type | Description | Data sheet ExCos-D | Data sheet ExPro-C Sensor | Certificate | EC Conformity |
| ExCos-D | EX temperature and humidity transmitter for ExPro-C .. sensors |  | | | |
Scope of delivery – ExCos-D
1 × analog module ExCos-D with integrated Ex-e terminal box
3 × self-tapping screws Ø 4.2 × 13 mm
Required accessory: ExPro-C .. Sensor
Special models – ExCos-D-A
Module with two intrinsic 4..20 mA outputs to connect an Ex-i external actual value indicator (output 1 for °C, output 2 for % rH)
Special stainless steel model – ExCos-D-VA
Stainless steel housing similar to AISI 316, some parts nickel-plated
Special painted (coated) model – ExCos-D -…- CT
Aluminum housing offshore / marine coated, seawater resistant, cable glands nickel-plated, screws in stainless steel
Accessories – ExCos-D
- ExPro-C .. sensors
- Intrinsic, external LCD indicator that can be connected to ExCos-D-A transmitter, installation in hazardous locations zone 1, 2, 21, 22
- Mounting bracket for round air ducts up to Ø 600 mm
- Sensor extension cable 3 m
- M16 standard cable glands in nickel-plated brass
- M20 Ex-d cable glands in nickel-plated brass for armored cables
- (Offshore applications)
Heating system ExPolar for use with ExCos sensors at low temperatures down to −40 °C
Do you have any questions? Please contact betec controls. We will be happy to assist you by phone, email, or the chat function.