AMETEK JOFRA DTI-1000 – Digital Temperature Indicator

Description

AMETEK JOFRA DTI-1000 – High-Accuracy Reference Digital Temperature Indicator

The JOFRA DTI-1000 Digital Temperature Indicator by AMETEK Calibration is a precision reference thermometer designed for accurate and traceable temperature measurement in laboratories, industrial facilities, and calibration environments.

The instrument uses advanced 4-wire True Ohm Measurement technology to minimize errors caused by thermoelectric effects in sensor cables, connectors, and terminals.

Featuring two independent sensor input channels, the DTI-1000 allows users to monitor two reference temperatures simultaneously, calculate differential temperature values, and perform accurate temperature calibration measurements.

When combined with compatible JOFRA STS Reference Temperature Sensors, the DTI-1000 provides a dependable reference measurement system for calibrating temperature instruments, verifying dry-block calibrators, and monitoring liquid bath temperature stability.

Key Features and Benefits

• Wide Temperature Range: Supports measurements from −200°C to +750°C, depending on the connected reference probe.
• High Measurement Accuracy: Instrument-only accuracy as high as ±0.004°C at specified measurement conditions.
• High Resolution: Selectable temperature resolution of 0.1°C, 0.01°C, or 0.001°C.
• Dual-Channel Measurement: Simultaneously measures temperatures from two reference sensors.
• Differential Temperature Mode: Calculates temperature differences between channels for comparison and stability testing.
• True Ohm Measurement: Four-wire resistance measurement minimizes unwanted EMF effects and improves reliability.
• Flexible Sensor Compatibility: Supports Pt100 and Pt25 resistance sensors, depending on the selected model.
• Reference Sensor Compatibility: Designed to operate with JOFRA STS reference temperature probes.
• Digital Display: Two-line VFD display with 20 alphanumeric characters per line.
• RS232 Communication: Enables communication with compatible calibration software.
• Portable Design: Integrated carrying handle and rugged housing for laboratory and suitable field environments.
• Flexible Power Supply: Operates using AA batteries or a compatible external power adapter.

Technical Specifications

Parameter	Specification
Manufacturer	AMETEK Calibration / JOFRA
Model	DTI-1000
Instrument Type	Reference Digital Temperature Indicator
Temperature Range	−200°C to +750°C
Input Channels	2 independent channels
Sensor Type – DTI-1000A	Pt100 / Pt25
Sensor Type – DTI-1000B	Pt25
Resistance Range – A	0–360 Ω
Resistance Range – B	0–95 Ω
Accuracy – A	±(6 ppm of reading + 1.4 mΩ)
Accuracy – B	±(6 ppm of reading + 0.7 mΩ)
Temperature Accuracy Example	±0.005°C at 0°C, DTI-1000A with Pt100, excluding sensor uncertainty
Resolution	0.1 / 0.01 / 0.001
Measurement Units	°C, °F, K, Ω
Measurement Principle	4-wire True Ohm Measurement
Measuring Current	1 mA
Display	VFD, 2 × 20 characters
Input Connections	Gold-plated LEMO / 4 mm banana sockets
Communication	RS232
Power Supply	8 × 1.5 V AA batteries or 9 VDC / 200 mA adapter
Battery Life	Approximately 15 hours
Operating Ambient Temperature	0°C to +50°C
Storage Temperature	−20°C to +60°C
Protection Class	IP20
Dimensions	225 × 135 × 195 mm
Weight	Approximately 2.2 kg

Temperature accuracy varies by model, sensor type, and measurement temperature. The listed maximum measurement span does not apply to every connected probe.

Typical Applications

• Dry-Block Temperature Calibrator Verification: Measuring the actual temperature inside a dry-block calibrator using a calibrated reference probe.
• Liquid Bath Temperature Calibration: Monitoring temperature and stability in precision calibration baths.
• RTD and Pt100 Sensor Calibration: Verifying temperature sensors against a suitable reference thermometer.
• Temperature Difference Measurement: Comparing two reference sensors and determining temperature differences.
• Industrial Temperature Instrument Verification: Checking process temperature measurement instruments and sensors.
• Calibration Laboratory Applications: Performing traceable temperature measurements in metrology and QA/QC laboratories.
• Custody Transfer Temperature Measurement: Supporting applications requiring low measurement uncertainty and reliable reference temperature data.

Compatible Accessories and Reference Sensors

• JOFRA STS-050 Reference Temperature Sensor
• JOFRA STS-100 Reference Temperature Sensor
• JOFRA STS-102 Cable Temperature Sensor
• Compatible LEMO sensor connectors
• External power supply
• RS232 communication cable
• JOFRACAL calibration software
• Optional carrying case
• Optional traceable or accredited calibration certificates

Why Choose the JOFRA DTI-1000?

The AMETEK JOFRA DTI-1000 provides accurate reference temperature measurements through advanced resistance measurement technology, dual-channel functionality, and flexible sensor configurations.

Its high resolution allows technicians to monitor small temperature changes during calibration, while the differential measurement function simplifies comparison between two reference sensors.

Combined with a calibrated JOFRA STS sensor, the DTI-1000 provides a reliable reference system for industrial temperature calibration and laboratory measurement applications.

MIQIAS – Authorized AMETEK Service Center in Iraq

MIQIAS I.I.C. Services Ltd is an Authorized AMETEK Service Center in Iraq, providing technical support, product enquiries, and assistance with AMETEK JOFRA temperature measurement and calibration instruments.

Serving industrial customers throughout Iraq, MIQIAS supports equipment selection for temperature calibration, process instrumentation, quality control, and industrial maintenance applications.

Email: ndt@miqias.com

Website: www.miqias.com

Locations: Erbil, Baghdad, and Basra, Iraq.