DP600A

Supported Applications

The Omega DP600A series (models DP606A and DP612A) provides a flexible, easy-to-use solution for temperature and process measurement in multi-zone environments. Designed as a universal input meter, the series supports monitoring of up to 6 or 12 independent zones within a single rugged ¼ DIN aluminum housing.

Documented applications include:

• Temperature Monitoring: Sequential scanning and display of multiple thermocouple (Types J, K, T, E, R, S, B, C, N) or RTD inputs (Pt 100, Ni 120, Cu 10).
• Process Measurement: Monitoring DC voltage signals ranging from 0–1 Vdc and DC current signals ranging from 0–24 mA.

The display cycles through each zone sequentially to show readings. High and low alarms with SPDT relay outputs are available for monitoring purposes, allowing the unit to signal alarm conditions based on configured thresholds.

Operating Conditions & Performance

The DP600A series operates within a defined performance envelope suitable for industrial panel mounting. All zones are scanned at a 400ms rate. The display resolution is specified as 4-digit.

Input Accuracy:

• Thermocouple: ±0.5% of reading or ±1°C, whichever is greater
• RTD: ±0.5% of reading or ±1°C, whichever is greater
• Voltage: ±0.5% of reading
• Current: ±0.5% of reading

Power Supply:

• Universal AC: 90–240 Vac
• Isolated DC Option: 9–36 Vdc (Class III for DC power option)

The series is designed with a panel cutout dimension of 92mm x 92mm. Electrical safety and compliance certifications include CE, cULus, UL 61010:2010 Electrical Safety Requirements, IEC 947-1 and 947-3, EN61010 (for 115/230 AC power options), and Class III for the DC power option.

Configuration Options

The series offers configurable dimensions across channel count, sensor type, output signals, and communication protocols. The DP606A supports 6 independent zones, while the DP612A supports up to 12 zones (with a limitation that 3-wire RTD is limited to 6 zones on all models).

Configurable Inputs:

• Sensor Types: Thermocouple, RTD (2 or 3 wire), DC Voltage, DC Current
• Process Units: °C, °F, mA, mV
• Alarm Configuration: HI, LO, or HI/LO per relay

Rear Panel Connections:

• Power In: Main power input (9-pin connector for AC models; rear panel terminals for DC options)
• Relay Out: Two SPDT relay outputs configurable for alarm functions
• Comm: Serial communication port (RS232 or RS485 user-selectable using Modbus RTU protocol)
• Input: Process input connections labeled Z1–Z12

Communication & Control Options:

• User-selectable serial interface (RS232 or RS485) with configurable Baud Rate, Data Bits, Parity, and Stop Bits.
• Modbus RTU protocol support including Function Codes for Read Coils (0x01), Read Holding Registers (0x03), Write Single Register (0x06), and Write Multiple Registers (0x10).
• Password protection to prevent front panel tampering of configuration settings.

Key Product Differences

The DP600A series is distinguished by channel count and power supply options. The model number guide indicates variants such as DP606A/DP612A - <Model Variant> - <Configuration Options>.

• Channel Count: DP606A models provide 6 zones. DP612A models provide up to 12 zones.
• Power Supply Variants: Models are available with standard AC power (90–240 Vac) or an isolated DC option (9–36 Vdc), indicated by the "-DC" suffix in part numbers such as DP606A-DC and DP612A-DC.
• RTD Configuration: While 12-channel models support up to 12 inputs, the use of 3-wire RTDs is limited to 6 zones across all model variants. For 3-wire RTD configurations on 12-zone units, common wires must be connected to + terminals of both upper (Z1–Z6) and lower (Z7–Z12) input boards.