AI-TI-01F Series

FLP Temperature Indicator

Manufactured by: Arrow Instruments

Innovation Through Technology

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Product Overview

The AI-TI-01F Series FLP Temperature Indicator by Arrow Instruments is a premium quality flameproof process indicator designed for precision temperature monitoring in harsh and hazardous industrial environments. Built to meet the demanding standards of pharmaceutical, chemical, and petrochemical industries, this intelligent and rugged device ensures high reliability, accurate readings, and operator safety in explosive atmospheres.

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Key Features

• CIMFR Certified FLP Enclosure for Zone 1 & Zone 2 Gas Gr. IIA & IIB areas
• High-Intensity 1”, 3½ Digit Red LED Display for excellent visibility
• Built-in RTD Sensor Linearization for precise signal accuracy
• 3-wire RTD Input with Lead Wire Compensation
• 3-Point RTD Calibration as per DIN 43760 standard
• NABL/NIST Traceable Test & Calibration Certificates
• Sensor Open/Burnout Indication with automatic alerts
• Dual-Compartment Housing for enhanced operational safety

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Applications

• Bulk Drug Manufacturing
• Pharmaceutical Plants
• Chemical & Petrochemical Industries
• Cement Plants
• Mines & Industrial Hazardous Zones

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Technical Specifications

Parameter	Specification
Input Type	RTD Pt100 (DIN 43760 Std.), 3 Wire
Measuring Range	-50°C to 199.9°C / 350°C / 500°C / 1200°C (Model specific)
Accuracy	±0.1% of Full Scale or ±1 count
Resolution	0.1°C / 1°C (As per model)
Analog Output	No Output / Optional 4-20mA Retransmission
Calibration	3-Point Zero, Span & Midpoint Calibration
Display	1” 7-Segment, High Intensity Red LED, 3½ or 4 Digit
Power Supply	220V AC, 50Hz, 10VA
Enclosure Type	Flameproof & Weatherproof Aluminium Dual-Chamber Housing
Cable Entries	3 Nos. ¾” ET
Mounting	Wall Mounting
Weight	Approx. 6.5 Kg
Operating Temp	10°C to 60°C
Humidity	10-95% RH, Non-Condensing

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Ordering Information

Model Number Format: AI-TI-01 X X X

Code	Description
F	FLP Enclosure
1	RTD Low Temp
2	RTD High Temp
3	J-Type Thermocouple
4	K-Type Thermocouple
3	3½ Digit Display
4	4 Digit Display

Example: AI-TI-01F-1-3 → FLP RTD Low Temp, 3½ Digit Display

AI-DC-2025-FLP

Dual Channel Temperature Controller

Manufactured by: Arrow Instruments

Innovation Through Technology

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Product Overview

The AI-DC-2025-FLP from Arrow Instruments is a dual-channel digital temperature controller, designed for rugged industrial environments and hazardous gas areas. Featuring high-brightness LED displays for both channels and flameproof LM-6 aluminium construction, it delivers precision temperature control and reliable process management.

It offers dual relay output control, built-in safety, input linearization, and optional RS485 Modbus RTU communication, making it an ideal solution for dual-process monitoring with high accuracy and industrial durability.

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Key Features

• Dual Channel Control: Independent temperature & process monitoring
• Input Types: Ch 1: RTD Pt-100 (3-Wire), Ch 2: 4-20 mA
• High-Brightness Red LED Displays: Ch 1: 0.8”, Ch 2: 0.5”
• 2 Relay Outputs (5A, 250VAC) for independent control
• Flameproof FLP LM-6 Aluminium Enclosure, CIMFR Certified (I, IIA, IIB)
• Optional RS485 Modbus RTU Communication for SCADA integration
• Built-in safety and input linearization features

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Applications

• Industrial temperature & process monitoring
• Agitator, reactor, and heater system control
• Hazardous zone equipment management
• SCADA-integrated industrial control systems
• Chemical, pharmaceutical, and manufacturing industries

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Technical Specifications

Parameter	Specification
Measuring Range	Ch 1: -100 to +400°C | Ch 2: -999 to +9999 (Programmable)
Input	Ch 1: RTD Pt-100, 3-Wire | Ch 2: 4-20 mA
Display	Ch 1: 0.8” | Ch 2: 0.5” Red LED, High Bright
Relay Output	2 Relays @ 5A, 250VAC
Accuracy	±0.1°C, ±1 count (Temp) | ±0.1% FS (Analog)
Communication	Optional RS485 Modbus RTU
Power Supply	230VAC, Single Phase
Enclosure	FLP LM-6 Aluminium, CIMFR Certified (I, IIA, IIB)
Size	250 x 250 x 130 mm
Cable Entry	5 x ¾” Glands

AI-RPM-6000-FLP

FLP Digital RPM Indicator

Manufactured by: Arrow Instruments

Innovation Through Technology

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Product Overview

The AI-RPM-6000-FLP from Arrow Instruments is a precision-engineered flameproof RPM indicator, ideal for VFD-controlled applications operating in hazardous environments. Featuring a bright 1” high LED display, it provides excellent readability and reliable RPM monitoring in demanding industrial settings.

With selectable resolution settings and an optional RS485 Modbus interface, this indicator ensures smooth integration, precise monitoring, and effortless calibration. Its rugged LM-6 aluminium construction makes it highly durable and suitable for chemical plants, reactors, and agitator systems.

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Key Features

• Flameproof (FLP) LM-6 Aluminium Enclosure, CMRI Certified for hazardous zones
• High Brightness 1” LED Display for clear, real-time RPM monitoring
• Supports 4-20 mA / 0-10 VDC Inputs (selected at ordering)
• Selectable Resolution: 1, 0.1, or 0.01 RPM
• Accuracy: ±0.1% FS ±1 Count
• Optional RS485 Modbus RTU communication
• Integrated 10K, 10 Turn Potentiometer for speed variation adjustment
• Customizable push buttons (2 configurable as NO/NC)

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Applications

• VFD-controlled motor RPM monitoring
• Industrial agitator, reactor, and centrifuge systems
• Chemical and pharmaceutical plant process control
• SCADA and automation system integration
• Hazardous zone speed monitoring

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Technical Specifications

Parameter	Specification
Measuring Range	0 to 6000 RPM (Customizable)
Resolution	1, 0.1, 0.01 RPM
Input	4-20 mA / 0-10 VDC (Selected at ordering)
Display	4-digit, 1” High Bright LED
Accuracy	±0.1% FS ±1 Count
Speed Variation	10K, 10 Turn Potentiometer
Push Buttons	2 (NO/NC as per requirement)
Communication	Optional RS485 Modbus RTU
Enclosure	FLP LM-6 Aluminium, CMRI Certified
Size	350 x 185 x 130 mm
Cable Entry	3 x ¾”

AI-VAC-2025-FLP

Digital Vacuum Indicator

Manufactured by: Arrow Instruments

Innovation Through Technology

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Product Overview

The AI-VAC-2025-FLP from Arrow Instruments is a microcontroller-based vacuum indicator designed for industrial applications in hazardous zones. It offers compatibility with absolute, gauge, and compound vacuum ranges, with external flameproof vacuum transmitter support.

It features a large, bright red LED display, up to two configurable relay outputs, and optional RS485 communication and 4–20 mA retransmission, making it ideal for SCADA systems and automated industrial processes.

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Key Features

• Microcontroller-based reliability for industrial use
• Wide measuring range options to suit multiple process needs
• Large 1” High, 4-Digit Red LED Display for excellent readability
• Up to 2 user-settable relay outputs for alarms and controls
• Optional RS485 Modbus communication for seamless SCADA integration
• 4–20 mA (2-wire) retransmission available
• Flameproof (FLP) LM-6 Aluminum enclosure for hazardous areas

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Applications

• Vacuum measurement in pharmaceutical, chemical, and process industries
• Hazardous zone pressure monitoring
• SCADA and process automation integration
• General industrial vacuum and pressure management

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Technical Specifications

Parameter	Specification
Measuring Ranges (Choose One)	760–0 Torr | 760.0–0.1 Torr | 1013–0 mBar | 0 to -760 mmHg | Compound -1 to +1/2/4 Bar
Display	4 Digit, 7 Segment Red LED, 1” High
Accuracy	±0.5% of Full Scale
Power Supply	230VAC (Instrument), 24VDC (Transmitter)
Output	4–20 mA (2-Wire), Optional Retransmission
Control Output	Up to 2 User-Settable Relays
Communication	Optional RS485 Modbus
Enclosure	FLP LM-6 Aluminum (Instrument & Transmitter)
Size	350 x 185 x 130 mm
Cable Entry	3 x ¾”