Technical Specifications:

• HART Protocol: HART 5, HART 7 compliant
• Measurement:
  • DC Voltage: 0–50V DC, accuracy ±0.05% of reading + 0.01% of range
  • DC Current: 0–100mA DC, accuracy ±0.02% of reading + 0.01% of range
  • Resistance: 0–3200 Ω, accuracy ±0.1% of reading
  • Frequency: 1–1000 Hz, accuracy ±0.01%
• Loop Power Supply: 24V DC, max 30mA output
• Communication: HART 7, PRP (Parallel Redundancy Protocol, IEC 62439-3)
• Display: Backlit monochrome LCD, 128 × 64 pixels
• Battery: AA alkaline × 4, approximately 40 hours continuous use
• Operating Temperature: -10°C to +50°C
• Protection Rating: IP65 (with protective boot)
• Dimensions: 210 mm (L) × 100 mm (W) × 50 mm (D)
• Weight: approximately 0.55 kg (including battery)

Functional Features:

• Read/write device variables via HART (tag, unit, range, damping)
• Simulate/transmit 4–20mA signal for transmitter calibration
• Measure mA, V, Ω, frequency simultaneously
• PRP communication enables testing of redundant network configurations (IEC 62439-3)
• Device detection auto-scans HART devices on the loop
• Data logging: stores up to 10,000 data points with timestamp
• Backlight for low-light operation

Working Principle:
The SDV541 connects in series with the 4–20mA HART loop. It uses a precision shunt resistor to measure loop current and a high-impedance input to measure voltage. HART communication is achieved via FSK modulation at 1200/2200 bps superimposed on the 4–20mA signal. The PRP function uses dual Ethernet ports to send/receive frames simultaneously over two independent network paths per IEC 62439-3, ensuring zero-time redundancy switching.

Advantages & Highlights:

• PRP capability is unique; validates redundant network configurations per IEC 62439-3
• Combines communicator, validator, and simulator in one device
• 24V loop power eliminates need for external power supply during testing
• HART 7 enables access to all device diagnostics and variables
• Rugged IP65 rating suitable for field use
• Data logging eliminates need for manual note-taking

Applicable Industries:
Oil & Gas, Chemical, Petrochemical, Power, Water & Wastewater, Pharmaceutical, Food & Beverage

Installation Requirements:

• Connect in series with the 4–20mA loop (break the loop and insert the device)
• For PRP testing: connect two Ethernet cables to separate network switches
• Use HART modem or direct connection to DCS/PLC HART port
• Battery: install 4 × AA alkaline batteries (do not mix battery types)

Usage Precautions:

• Do not apply more than 50V DC across the mA/V input terminals
• When simulating mA, ensure the loop is open or high-impedance at the receiver end
• For PRP testing, both network paths must be active and properly configured before testing
• Do not expose the device to temperatures above +50°C
• Replace batteries when the low battery indicator appears
• Calibrate annually using Yokogawa CL series calibrator or equivalent

Product 8: Yokogawa PH202G-E

Product Name: Yokogawa PH202G-E Portable Multifunction Process Calibrator

Product Introduction:
The PH202G-E is a portable multifunction process calibrator from Yokogawa, designed for calibration and maintenance of field instruments. It can source and measure voltage, current, resistance, frequency, thermocouple, and RTD signals. The suffix “-E” denotes the European configuration (230V AC power adapter included, CE marking).

Model Series: PH200 Series

Technical Specifications:

• DC Voltage Source: 0–100V DC, accuracy ±0.015% of output + 0.005% of range
• DC Voltage Measure: 0–100V DC, accuracy ±0.01% of reading + 0.005% of range
• DC Current Source: 0–100mA DC, accuracy ±0.02% of output + 0.005% of range
• DC Current Measure: 0–100mA DC, accuracy ±0.015% of reading + 0.005% of range
• Resistance Measure: 0–3200 Ω, accuracy ±0.02% of reading + 0.005% of range
• Frequency Measure: 1–1000 Hz, accuracy ±0.01% of reading
• Thermocouple Source/Measure: K, J, T, E, R, S, B, N, L, U, W
  • Accuracy: ±0.3°C (K type at 100°C)
• RTD Source/Measure: Pt100 (JIS/IEC), JPt100, Cu50, Ni120
  • Accuracy: ±0.1°C (Pt100 at 100°C)
• Loop Power: 24V DC, max 30mA (for powering transmitters during calibration)
• Display: Backlit color LCD, 320 × 240 pixels
• Power Supply: 100–240V AC (via included adapter) or rechargeable Li-ion battery (8 hours continuous use)
• Operating Temperature: -10°C to +50°C
• Protection Rating: IP54
• Dimensions: 180 mm (L) × 95 mm (W) × 55 mm (D)
• Weight: approximately 0.7 kg (with battery)

Functional Features:

• Source & measure simultaneously (dual-function operation)
• Step/Ramp/Manual output modes for current and voltage
• 24V loop power supply for powering 2-wire transmitters during calibration
• Auto-step test with programmable step values and dwell time
• Data logging: stores up to 10,000 records with timestamp
• Min/Max/Hold functions for all measurements
• Backlight and color display for easy reading in field conditions
• HART communication capability (PH202G-E/HART variant; verify model)

Working Principle:
The PH202G-E uses a high-precision DAC (Digital-to-Analog Converter) to generate voltage and current outputs. For measurement, a 24-bit A/D converter digitizes the input signal. Thermocouple and RTD measurements use precision cold junction compensation and stored polynomial linearization tables. The microcontroller processes all signals and displays results on the color LCD. Loop power is supplied via an internal DC-DC converter from the battery or AC adapter.

Advantages & Highlights:

• All-in-one calibrator replaces separate mA, V, Ω, TC, and RTD calibrators
• Dual-function (source + measure) reduces calibration time by 50%
• 24V loop power enables in-situ transmitter calibration without external supply
• Color LCD with backlight provides excellent readability in all lighting conditions
• Rechargeable battery provides 8 hours of field use
• Accuracy meets ±0.015% standard, suitable for calibration laboratory and field use

Applicable Industries:
Oil & Gas, Chemical, Petrochemical, Power Generation, Pharmaceutical, Food & Beverage, Water & Wastewater, Manufacturing

Installation Requirements:

• No installation required; handheld portable device
• Connect test leads to device under test (DUT) using banana plug or spade lug connections
• For TC/RTD: use correct thermocouple extension wire or RTD lead wire
• Charge battery fully before field use: 8 hours charging time via included adapter

Usage Precautions:

• Do not exceed 100V DC or 100mA on any output terminal
• When sourcing current, ensure the load resistance does not exceed the compliance voltage limit
• Do not short-circuit the voltage output terminals
• For TC measurements, ensure cold junction temperature is stable; avoid drafts
• Store in dry environment; do not expose to rain (IP54 is splash-proof, not submersion-proof)
• Calibrate the PH202G-E itself annually using Yokogawa GS series calibrator or national standards