The High Accuracy, Fast Sampling Platinum Digital Panel Meter Series for Temperature and Process Meters

The PLATINUM™ Series of microprocessor-based digital panel meters provides superior flexibility in process measurement. This new product has been designed with immense care and is extremely versatile and powerful in addition to being easy to set-up and use. The automatic hardware configuration recognition removes the need for jumpers and allows the firmware to simplify itself automatically, removing all menu options that do not apply to a specific configuration.

Each individual unit allows the user to select the input type from 9 thermocouple types (J, K, T, E, R, S, B, C, and N), Pt RTDs (100, 500, or 1000 Ω, with either 385, 392, or 3916 curve), thermistors (2250 Ω, 5K Ω, and 10K Ω), DC current, or DC voltage. The bipolar voltage or current inputs are totally scalable to almost all engineering units, with a selectable decimal point that is ideal for use with flow, pressure, or other process input.

It is possible to configure two alarms for below, above, hi/lo, and band triggering using either absolute or deviation alarm trigger points. High-high/low-low indication is also available. It is also possible to assign the two optional single pole double throw mechanical relays to either or both alarm triggers. Three display colors and two annunciators can also be assigned to the alarm triggers.

The PLATINUM™ Series device features a large, 9 segment, 3-color programmable LED display that is capable of changing color and/or change the state of designated outputs every time an alarm is triggered. The universal power supply accepts 90 to 240 Vac. The low voltage power option can accept 24 Vac or 12 to 36 Vdc.

Embedded Ethernet and Serial Communications

Optional embedded Ethernet on the  1/16 and 1/8 DIN models enable the units to be directly connected to an Ethernet network and transmit data in standard IP/TCP packets, or serve web pages over a LAN or the internet. Optional serial communications are also available configurable as RS485 or RS232, with straightforward ASCII commands or MODBUS^®. All three types of communications interfaces (serial, Ethernet, and USB) can be installed and active simultaneously.

• Optional alarm relays, flexible alarm programming
• High accuracy, high performance (20 samples/sec)
• Totally firmware configurable, no jumpers to set
• Extremely versatile yet easy and intuitive to use
• Standard USB, RS232/RS485 and Optional Ethernet with MODBUS^® Serial Communications
• Universal inputs for thermocouples, thermistors, RTD’s, and process voltage/current
• Bright 3-color (red, amber, and green) 9 segment LED Display with wide viewing angle

Specifications

The key specifications of the PLATINUM™ series of microprocessor-based digital panel meters include:

• Inputs
  • Input types: Thermocouple, RTD, thermistor, analogue voltage, analogue current
  • Voltage input: -100 to 100 mV, -1 to 1 V, -10 to 10 Vdc scalable
  • Current input: 4 to 20 mA, 0 to 24 mA scalable
  • Thermocouple input (ITS 90): K, J, T, E, R, S, B, C, N
  • RTD input (ITS 90): 100/500/1000 Ω Pt sensor, 2-, 3- or 4-wire; 0.00385, 0.00392 (100 Ω only), or 0.003916 (100 Ω only) curves
  • Thermistor input: 2252 Ω, 5K Ω, 10K Ω
• Configuration: Differential
• Polarity: Bipolar
• Resolution: 0.1° temperature; 10 µV process
• Input impedances:
  • Process voltage: 10M Ω for ±100 mV, 1M Ω for other voltage ranges
  • Thermocouple: 10K Ω max
  • Process current: 5 Ω
• Temperature stability:
  • Thermocouple @ 25 °C (77 °F): 0.05 °C/°C (cold junction compensation)
  • RTD: 0.04 °C/°C
  • Process: 50 ppm/°C
• Reading rate: 20 samples per second
• A/D conversion: 24-bit sigma delta
• Digital filter: Programmable from 0.05 seconds (filter = 1) to 6.4 seconds (filter = 128)
• CMRR: 120 dB
• Excitation: Firmware selectable (no jumpers to set) to 5, 10, 12, and 24 Vdc @ 25 mA (12 V max for DC powered units)
• Warm-up to rated accuracy: 30 mins
• Setpoint adjustment: -9999 to +9999 counts
• Alarm outputs (optional)
• SPDT relay: Single pole, double throw mechanical relay, 250 Vac or 30 Vdc at 3 A (resistive load)
• Isolated analogue output (optional): Retransmission only
• Communications (USB standard , optional serial and Ethernet)
• Connection:
  • USB: Female micro-USB
  • Serial: Screw terminals
  • Ethernet: Standard RJ45
• USB: USB 2.0 host or device
• Ethernet standards compliance: IEEE 802.3 10/100 Base-T auto-switching, TCP/IP, ARP, HTTPGET
• Serial: Software selectable RS232 or RS485; programmable 1200 to 115.2 K baud
• Protocols: Omega ASCII, Modbus ^® ASCII/RTU
• Isolation
• Approvals: UL, cUL, CE
• Power to input/output: 2300 Vac per 1 min test; 1500 Vac per 1 min test (low voltage/power option)
• Relays/SSR to relay/SSR outputs: 2300 Vac per 1 min test
• Power to relays/SSR outputs: 2300 Vac per 1 min test
• RS232/RS485 to inputs/outputs: 500 Vac per 1 min test

Accessories

The optional PT-USB-CABLE should be used for an IP65 (NEMA4) rated panel mount USB connector. A 30 cm long cable connects from the USB port of the Platinum meter to the control panel. When not in use, the panel mount USB socket comprises of a protective end cap for IP65 rated protection.

Each unit is supplied with the PT-USB-ADAPTER that can be plugged into the meter and used with a standard USB 2.0 memory stick.