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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 32H8I |
| Alternative Part Number | 32H8I |
| Manufacturer | Eurotherm |
| Series | 3200 Series |
| Type | Indicator and Alarm Unit |
| Supply Voltage | 24 V dc/ac |
| Display | LCD Display |
| Input Types | Universal input, Strain gauge input |
| Output Types | Relay, Analogue (Current and Voltage), Logic |
| Communication | Modbus RTU Slave, EIA 232, EIA 485 |
| Approvals | CE, cUL listed, GOST, FM, EN 14597 TW |
| Environmental Performance | Operating Temperature: 0 to 55°C, Storage: -10 to 70°C, Humidity: 5 to 90% RH non-condensing |
| Panel Sealing | IP65, NEMA 4X |
| Dimensions (WxHxD) | 96 x 48 x 90 mm |
| Panel Mounting Cut Out | 1/8 DIN, horizontal 92W x 45H mm |
| Weight | 350g |
| Power Requirements | 100 to 230V ac, ±15%, 48 to 62 Hz, max 8 W; 24V ac, -15%, +10%; 24V dc -15% +20% |
| Transmitter PSU | 24V dc, 20mA (not on 3216i) |
| Languages Supported | English, French, German, Spanish, Italian |
| Custom Messaging | Up to 15 scrolling text messages, 127 characters max per message |
| Recipes | Up to 5 recipes with 19 parameters |
| Alarm Types | 4 types: Absolute high & low, Rate of change (rising or falling) |
| Calibration Accuracy | <±0.25% of reading ± 1 LSD |
| Input Calibration | User-adjustable over full range, 2-point gain & offset |
| Strain Gauge Sensitivity | 1.4 to 4 mV/V |
| Input Span | –27% to +127% of full scale (approx. –10mV to +50mV) |
| Transducer Excitation | 10V dc + 7% |
| Resolution | Effective bits: >17 for process input, 14.3 for strain gauge input |
| Isolation | 264V ac double insulation from PSU and communication |
The Eurotherm 32H8I is a versatile and reliable indicator and alarm unit from the esteemed 3200 Series, designed to provide precise temperature and process measurements. This unit is engineered to facilitate process interlocks, including over-temperature furnace limits, through its integrated relay output channels.
Crafted for ease of use, the 32H8I features a 'Quick Start' code that simplifies the configuration of essential functions such as input sensor type, measurement range, and alarms, ensuring 'Out of the Box' operation. Each parameter is accompanied by scrolling text messages that describe its function, available in English, German, French, Spanish, or Italian, catering to a diverse range of users.
The universal input capability of the 32H8I allows for a wide range of temperature and process inputs to be selected directly from the front panel buttons, eliminating the need for hardware changes and enabling easy on-site setup. Additionally, the unit is equipped with a strain gauge input, energised from an internal 10V dc transducer supply, complete with an automatic shunt calibration routine to eliminate zero and span offsets.
The 32H8I's display can show a full 5-digit value, ensuring clear and accurate readings. It offers four internal alarm setpoints that can energise up to three relay outputs, which can be latched if required. A special 'Alarm Blocking' mode ensures that upon power-up, an alarm must first enter a good state before becoming active, which is particularly useful for low alarms during process warm-up.
This unit is not only functional but also designed with a sleek aesthetic that fits seamlessly into various industrial environments. The 32H8I is a testament to Eurotherm's commitment to continuous development and product improvement, making it a smart choice for those seeking a high-quality indicator and alarm unit for their process control needs.
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Frequently Asked Questions
What type of input can the Eurotherm 3200 Series Indicator accept?
The Eurotherm 3200 Series Indicator can accept a wide range of temperature and process inputs, including universal inputs and strain gauge inputs, without the need for any hardware changes. This allows for easy on-site setup and configuration.
Can the unit display messages for events or alarms?
Yes, the unit can display custom text messages which can be created with configuration tools and downloaded to the indicator. These messages can provide clear visibility of process events and alarms, aiding operators in understanding and acting upon various conditions.
Is it possible to transmit the measured process value from the indicator?
Yes, the measured process value can be transmitted as either a mA or voltage signal, with a selection of outputs including 4-20mA and 0-10V dc. In the 32H8I model, this signal is isolated from all other electronics within the unit.
What kind of communication protocols does the indicator support?
The indicator supports both EIA 232 and EIA 485 communication using the Modbus protocol as a slave device. It is also possible to digitally retransmit one parameter using a Modbus broadcast to all other Modbus devices on the network.
How can the operating parameters of the indicator be changed?
Operating parameters can be changed by selecting a recipe using the indicator's push buttons. Recipes can be created with configuration tools and are very useful for processing multiple products that require different parameters.
What are the environmental performance specifications for the indicator?
The indicator is designed to operate within a temperature range of 0 to 55°C and can be stored in temperatures ranging from -10 to 70°C. It has a humidity limit for operation and storage of 5 to 90% RH non-condensing. Additionally, it is sealed to IP65 and NEMA 4X standards, making it suitable for use in various industrial environments.
What certifications does the Eurotherm 3200 Series Indicator hold?
The indicator holds several certifications including CE, cUL listed, GOST, FM, and EN 14597 TW approval, ensuring compliance with various international standards and regulations.
Can the indicator be used for process interlocks?
Yes, the indicator can be used for process interlocks, including over-temperature furnace limits, which are implemented using relay output channels.
What languages are available for the scrolling text messages on the indicator?
The indicator supports scrolling text messages in multiple languages, including English, German, French, Spanish, and Italian, making it versatile for international use.
What is the purpose of the 'Alarm Blocking' mode on the indicator?
The 'Alarm Blocking' mode is a special feature that ensures when the unit is powered up, an alarm must first enter a good state before becoming active. This is particularly useful for low alarms which can be blocked while the process is warming up.
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