Stepper Coldroom

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Flexible Networking

Optional integrated networking solutions facilitate direct connection to a communication network.

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Energy Efficiency

Available with or without a mains isolation switch the panel incorporates a host of energy saving and safety features.

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Flexible Display

For flexibility, the display panel is removable and can be wall mounted up to 5M away.

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Control & Accuracy

Coldroom Panels provide accurate temperature control, to support temperature due diligence.

Easy Configuration

Built-in parameters and default configurations give you complete flexibility to control either high-temperature produce (HT) or low-temperature freezer cold rooms (LT). Customisation can also be carried out efficiently, via the panel display, PC connection, caesium programming adapter or using a network connection to the DMTouch.

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Stepper Coldroom

Flexible Networking

Optional integrated networking solutions allow you to connect a Stepper Coldroom Panel directly to your network without the need for an additional interface module. Options include Ethernet IP and RS485.


For those who need their Stepper Coldroom to do a little more, we offer a wide range of accessories to expand the functionality of the panel as you need it.

Description Part Number
Pressure Transducer PR0160- PR0164
PT1000 Air probe PR0170
PT1000 Pipe Probe PR0180
Inline Stepper Filter PR0656
IP Futura (DIN Option) PR0016/DIN
Mercury Switch
(Fibre & PHI Options)
RS485 Interface PR0026/DIN

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Industry Leading Warranty

The Coldroom panel comes with Resource Data Management’s best in class five-year warranty. In addition, we offer free tailored training programmes at our in-house training centre and free technical after-sales support to ensure that our products and solutions deliver the very best results for every customer.

Technical Specifications

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Stepper Coldroom (PR0150-S)

6 Analogue Inputs (from 10 types including PT1000)
2 Entrapment Alarm and Door Status (0 Volt Return)

5 relay outputs (Relays 1, 2, 3 & 5 protected by MCB)

Relay 1 10A (250Vac, 30Vdc) resistive (COST0.4 8A Inductive load/COST=0.6 0.5 HP Motor Load).

Relay 2 (Fans) - 6A (250Vac, 30Vdc) resistive (COST=0.4 8A Inductive load).

Relay 3 (Lights) - 6A (250Vac, 30Vdc) resistive (COST=0.4 6A Inductive load).

Relay 4 (Alarm) - 3A (250Vac, 30Vdc) resistive, configured for volt free operation.

Relay 5 (Defrost) - 20A (250Vac, 30Vdc) resistive (COST=0.4 8A Inductive load).

Stepper Valve - 825mA (24vdc) Chopper Drive Bi-Polar (Stepper output is internally powered, no separate 24V supply required).

Integrated high volume alarm buzzer (85dB).

1 Permanent Live Outputs
Output 1 - Fused 1A(T).

RS232 - allows external RDM communication module to be used.
Ethernet IP XML Built-in (Optional).
RS485 Genus Built-in (Optional).

Four Character, Seven Segment LED, Including 5M (16.4ft) Cable.

Supply Voltage Range: 100 - 240 Vac +/-10%.
Maximum 50A with relays fully loaded.

Operating Temperature: 5°C to 50°C (41°F to 122°F).
Operating Humidity: 80% Maximum (non-condensing).

300 x 240 x 130mm (11.8 x 9.43 x 5.1in).

2.2kg (4.8lb) - Final weight dependent upon selected build options.

CE Certification  FCC Certification  RCM Certification   UL Certification

Product Documentation

Log In or Register to view and download user manuals and product documentation.
LanguageTitleFile Size (kB)DateSorted By Date In Descending Order
LanguageStepper Coldroom Panel Commissioning/User Guide13856/21/2019
LanguageStepper Coldroom 2 page Data Sheet2386/21/2018
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