Key facts
- Manuals
- 2
- Languages
- EN
- Last added
- 2026-10-01
Featured JOFRA manuals
JOFRA ASC-400 Advanced Signal Calibrator Adjustment Manual
The ASC-400 Advanced Signal Calibrator includes a built‑in adjustment function that is accessed through a simple ASCII protocol over the USB interface. This manual describes the terminal‑mode adjustment process, required temperature conditions, and the calibration menu.
Adjustment is performed by connecting the calibrator to recommended test equipment, entering the calibration menu, and following the prompts for each function (current, voltage, resistance, thermocouple, barometric pressure, etc.). The document also lists the necessary USB driver installation steps and the password needed to access the menu.
Covers: Overview · Initiating Communication · Adjusting and calibrating the ASC-400 · Test equipment · ASC-400 Adjustment procedures · Exiting calibration procedures
JOFRA CTC-155/350/660 A/C Compact Temperature Calibrator Reference Manual
The JOFRA CTC‑155/350/660 A/C compact temperature calibrator is a portable dry‑block instrument for industrial temperature calibration. This reference manual provides detailed instructions for receiving, setting up, operating, maintaining, and servicing the calibrator, as well as safety guidelines and warranty information.
The manual is organized into sections on safety symbols, hardware interface, operating procedures (including auto‑step and switch‑test functions), error messages, and a full list of technical specifications and accessories. Technical data such as dimensions, power requirements, temperature range, resolution and accuracy are listed for each model variant.
Covers: Introduction · Safety instructions · Setting up the calibrator · Calibrator Interface · Operating the calibrator · Storing and transporting
Latest JOFRA manuals
JOFRA ASC-400 Advanced Signal Calibrator Adjustment Manual
Service Manual 13 pages · 449 KB · ENThe JOFRA ASC-400 Adjustment Manual provides step‑by‑step procedures for calibrating and adjusting the Advanced Signal Calibrator via USB.
JOFRA CTC-155/350/660 A/C Compact Temperature Calibrator Reference Manual
User Manual 59 pages · 797 KB · ENReference manual for the JOFRA CTC‑155/350/660 A/C compact temperature calibrator covering setup, operation, safety and specifications.
Which document do I need?
Service Manual
Disassembly, diagnostics and part numbers, for repair.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in JOFRA manuals
What password is required to access the calibration menu?
The password is 900.
From: JOFRA ASC-400 Advanced Signal Calibrator Adjustment Manual
Which test equipment is recommended for adjusting the ASC-400?
A Fluke 8508A digital multimeter, a Fluke 5520A calibrator, and appropriate banana leads are listed as recommended equipment.
From: JOFRA ASC-400 Advanced Signal Calibrator Adjustment Manual
What safety symbols are used in the manual?
Safety symbols are used to highlight warnings, cautions and notes that must be followed to avoid personal injury or material damage.
From: JOFRA CTC-155/350/660 A/C Compact Temperature Calibrator Reference Manual
How many main fuses does the calibrator have?
The calibrator contains two main fuses with specified current and voltage ratings.
From: JOFRA CTC-155/350/660 A/C Compact Temperature Calibrator Reference Manual