ZYGO ZMI-4104C – 6U-VME64x Laser Interferometer Displacement Measurement Board

Description

ZYGO ZMI-4104C – 6U-VME64x Laser Interferometer Displacement Measurement Board

Ordering & Delivery Assurance

The ZYGO ZMI-4104C is a discontinued legacy component, and sourcing verified units requires established supply channels. In-stock inventory typically ships within 1 week via FedEx, UPS, or DHL express services. When additional sourcing is necessary, lead time extends to a maximum of 4 weeks to locate and validate genuine boards. Standard commercial terms require 50% advance payment to secure the order, with the full balance due prior to dispatch. One thing to note is that availability fluctuates given the discontinued status—early reservation is advisable for multi-unit requirements.

Key Practical Features

Technical Specifications

Compatible & Supporting Modules

ZYGO ZMI-7700 Series Laser Head – Provides the stabilized HeNe laser source required for interferometric measurement. In standard configurations, you’ll typically see this paired with the 4104C for complete multi-axis displacement systems. Supports up to 4 measurement axes with frequency-stabilized output.

ZYGO ZMI-4400 Series Multi-Axis Board – Offers expanded channel density (up to 8 axes) within the same VME64x form factor. Serves as a direct upgrade path when additional measurement channels are required without adding chassis slots.

VME64x Timing/Synchronization Module (e.g., GE Fanuc ICV-002 or equivalent) – Provides precise trigger and clock distribution across multiple VME cards. The architecture appears to prioritize synchronized sampling, and a dedicated timing card is typically necessary for coordinated multi-board measurement setups.

Field Installation & Routine Maintenance

The ZMI-4104C installs into a standard 6U VME64x chassis, which typically provides IP20-level enclosure protection. In most rack installations, ventilation clearance should exceed 25 mm above and below the card to maintain thermal headroom—this is particularly important given the sub-nanometer resolution sensitivity to thermal drift. The board seats via DIN 41612 connectors on the VME backplane; ensure connector pins are inspected for oxidation before insertion, especially on refurbished units.

Fiber-optic or coaxial photodetector connections at the front panel should be secured with manufacturer-specified torque values to avoid signal degradation. Firmware and configuration parameters are typically stored in onboard non-volatile memory—backup procedures should be performed via the host VME controller before any board swap. Calibration verification against a traceable reference standard is recommended at 12-month intervals, or whenever the laser head is replaced. But if the operating environment experiences significant thermal cycling,6-month intervals may be more appropriate.

Compliance & Quality Backing

The ZMI-4104C was manufactured in the United States and originally carried CE marking for European market compliance. As a legacy industrial measurement component, applicable standards include IEC 61010-1 (safety of electrical measurement equipment) and RoHS compliance depending on production date. The unit ships with a 12-month (365-day) warranty covering manufacturing defects and component failure under specified operating conditions.

Delivery is fulfilled within 1 week for in-stock units, extending to a maximum of 4 weeks when sourcing is required. All shipments are dispatched via FedEx, UPS, or DHL express services. Payment terms are structured as 50% advance to confirm the order, with the remaining balance settled in full prior to dispatch.

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