Parameters
Parameter Category Specification for DM1A-05G-1D2A1G2
Model Number DM1A-05G-1D2A1G2
Product Name Multi-Function Process Calibrator
Primary Functions MEASURE and SIMULATE (SOURCE):
• DC Current & Voltage (mA, V)
• Resistance (Ω) for RTDs
• Thermocouple (T/C) mV for various thermocouple types
Detailed Input/Output Ranges Based on common code interpretation for this suffix:
• DC Current: 0 to 100.00 mA (resolution 0.01 mA)
• DC Voltage: 0 to 100.00 V (resolution 0.01 V)
• Resistance (RTD): 0 to 400.0 Ω (Pt100 simulation/measurement)
• Thermocouple: Covers multiple types (e.g., K, J, R, S, T, E, B, N) by selecting the type and outputting the corresponding mV signal.
Accuracy • Current/Voltage: Typically ±0.05% of reading ±1 digit
• Resistance: Typically ±0.1% of reading ±1 digit
• Thermocouple: Varies by type, but typically < ±1.0°C for common types like K.
Loop Power Supply • Function: Supplies 24V DC to power a 2-wire (4-20mA) transmitter during testing.
• Compliance Voltage: Sufficient to drive typical loop loads.
Display • Type: LCD display capable of showing units (mA, V, Ω, °C, °F, mV).
• Features: Likely includes a graphical segment or specific icons for function status.
Battery • Type: Standard or rechargeable battery pack.
• Life: Varies with use; typically several hours of continuous operation.
Operating Conditions • Temperature: 0 to 50 °C (32 to 122 °F)
• Humidity: 5 to 95% RH (non-condensing)
Safety Rating Not rated for use in hazardous (explosive) atmospheres.
Connections • Terminals: Multiple safety banana jack terminals for different functions (INPUT, OUTPUT, SENSOR, T/C, RTD, EXT. PWR).
• Leads: Supplied with a set of test leads and likely specialized probes for temperature connections.
Key Features • Thermocouple and RTD Simulation: The standout feature. Can output precise mV and resistance signals to test temperature transmitters, controllers, and indicators as if it were a real sensor.
• Measure Temperature Signals: Can directly measure the output of a T/C or RTD to verify its function.
• High Accuracy: Suitable for calibration and certification of instruments.
• Versatility: Replaces multiple single-function tools, making it a comprehensive solution for instrumentation technicians.
Applications
This calibrator is specifically designed for temperature-related work:

Calibrating Temperature Transmitters: Simulating RTD or T/C input to check the 4-20mA output of a temperature transmitter.

Testing Controllers and Recorders: Injecting a simulated temperature signal to verify the reading and alarm setpoints on displays, controllers, and chart recorders.

Sensor Verification: Measuring the raw output of a thermocouple or RTD to determine if it is functioning correctly and within specification.

Troubleshooting Complex Loops: Diagnosing faults in temperature control loops by isolating and testing each component (sensor, transmitter, controller input/output).

General Purpose Maintenance: All standard 4-20mA and voltage loop testing.