Lighting and control
Ultratec Radiance Hazer
Read the digital control mode, trace both DMX channels and follow the documented shutdown before diagnosing intermittent or unexpected haze.
Ask about rental or purchase with a date, venue, approximate duration and a beam reference.
Model and purpose
- Manufacturer
- Ultratec Special Effects
- Model
- Ultratec Radiance Hazer
- Scope
- Digital display revision; manual v.102020
- Supply variants
- CLF2460: 120 V, 4.5 A; CLF2464: 220–240 V, 2 A; 50/60 Hz; check nameplate
- Fluid / preparation
- Luminous 7 only; 2 L or 4 L jug; approximately 8 minutes warm-up
- Control
- 2 DMX channels: haze then fan; optional remote; standalone settings
A water-based hazer for an even atmospheric layer that reveals light beams. Haze rate and fan speed are different controls; the result also depends on room airflow. This guide follows the digital display revision and must not be applied unchanged to older mechanical address switches.
Assess atmosphere that supports the beams
Consider Radiance when the goal is to reveal beams and lighting changes with haze. Tell us when during the program the atmosphere is needed and the expected ventilation. It is not a low-fog system: haze rate and fan are separate controls, and room airflow can change distribution and persistence.
- Identify the digital revision and voltage label before planning control or power. Confirm Luminous 7 and whether remote or accessories are included in the proposal; do not assume a Versa Fan is supplied.
- Check venue permission, detectors, ventilation and visibility. Note open doors, drafts or planned HVAC changes so the test represents actual use.
- Include preparation, warm-up, operator control and the manual’s zero-output period before shutdown. Fluid use and haze persistence need observation at those settings and conditions, rather than extrapolation from another hazer.
Questions to define your proposal
- Which beams should stand out, and during which program sections?
- Will doors open or ventilation settings change?
- Does the program alternate music, open microphones and recording?
- Who supplies Luminous 7 and allows warm-up/shutdown time?
A solution to assess with GLMedia
We can assess Radiance for beam atmosphere, including a planned venue test of distribution and level. Define the approved fluid, control and operating time in the proposal. For talks and music, compare picture and sound; when conditions are unsuitable, assess surface lighting or video without atmosphere.
Ask about rental or purchase with a date, venue, approximate duration and a beam reference. We can assess equipment, fluid, accessories and installation, configuration or operation scope, with venue conditions to confirm.
Features and connections
DMX uses 5-pin XLR. Record the brief code revision shown at startup and inspect the actual supply label; these are separate voltage versions, not a universal input.
The optional Versa Fan connection is controlled with the internal fan. Use only the matching voltage accessory and documented connection. Prepare the specified support and have competent personnel assess mounting and secondary retention.
Prepare the system
- Fit the specified fluid jug, seat the pickup tube and keep its filter submerged. Check that the line is primed; stop if fluid cannot feed rather than repeatedly requesting haze.
- Provide grounded mains, dry conditions and free air circulation. Coordinate detection systems, visibility and exhaust with the venue; do not disable alarms independently.
- Start an attended low-output test. Read Ready and the selected mode before testing a console or remote; allow the full documented shutdown interval in the event schedule.
Questions and troubleshooting
It produces haze with the desk at zero: is Stand Alone still active?
Standalone overrides DMX and the hand remote. DMX in turn overrides the hand remote.
- Wake the sleeping display with a single key press and read it before pressing again; further presses change settings. Check whether the display is in the standalone range beginning with 6.
- For DMX or remote operation, select an address from 001–511. For an isolated remote test, remove valid DMX only after stopping commands and clearing the nozzle area.
- In standalone, the tens digit sets haze and the ones digit sets fan. Record both before changing them; the control code is not a console universe address.
Record the display and Valid DMX state before changing controls. For intermittent output, also record heater indication and whether it happens locally or only from the desk: that symptom alone does not identify the cause on your unit. When operating from the optional hand remote, check Interval: it schedules cycles. For continuous output, the manual specifies fully counterclockwise. First confirm which control source is active.
Haze responds but fan control seems ineffective: what should I compare?
The fan retains a minimum speed, and its speed changes only while haze is being produced. Zero haze does not mean a stationary fan.
- Patch the selected address as haze and the following address as fan. Compare the raw output of both channels; the maximum starting address is 511.
- Once Ready is solid green, test limited haze with a controlled fan change. Distinguish lack of haze from lack of fan response before changing the profile.
- If using the matching optional Versa Fan, check its own documented controls and connection. Stop for a stalled or obstructed fan; disconnect power before external cleaning and refer internal work to service.
Output becomes intermittent or a puff appears at the next startup: what is a useful check?
Compare heat, fluid feed and the previous shutdown. These checks identify conditions to investigate; they do not prove a deposit or component failure.
- Read the green status: flashing means heating, solid means ready. A three-flash pattern with full fan indicates overtemperature; stop the test and follow the manual/service route.
- Compare pickup submersion, priming, received DMX and remote interval setting. A timer or lost fluid feed can resemble an irregular output fault.
- For normal shutdown, set haze output to 0 and leave the attended machine powered for 15 minutes before switching off. The manufacturer says this reduces residue and next-start fluid discharge; it does not eliminate maintenance.
How can beams read without filling the scene with fog?
We can assess a moderate atmosphere around light direction, background, camera and ventilation. A room test establishes the useful level; another show’s percentage does not define the density you need.
- Test positions, airflow and camera response with supervision and venue approval. Assess output and distribution separately; include only fans/accessories compatible with the actual system.
- If airflow removes the effect or atmosphere is not permitted, consider light on surfaces, scenic elements or video content. More output without checking conditions does not guarantee coverage.
What should the hire include besides the hazer?
Define approved Luminous 7 fluid, electrical version, control, operator and preparation/shutdown time. Supplying the machine alone does not settle these components.
- Allow warm-up, checks and the manufacturer’s shutdown sequence: zero output for 15 minutes before switch-off, with power maintained and supervision. This helps reduce residue; it does not remove maintenance needs.
- If output stops during the show, observe signal, heating and fluid supply without opening the unit. An inspected alternative unit or atmosphere-free look can be planned; internal service belongs with appropriate personnel.
Can haze be used in an event alternating talks, recording and music?
We can plan when it supports the design and when emission should stop. Compare picture and sound: zero haze output does not mean the fan stops or the machine is silent.
- At rehearsal, assess position and sound with open microphones, plus screen contrast and camera. Do not cover ventilation or disable the fan to reduce noise.
- Agree emission moments and venue permission with production. Allow model-specific warm-up and shutdown; improvised power cuts are not scene control.
- If noise, persistence or restrictions do not suit the talk, separate the musical effect or design the whole program without atmosphere. Distinguish hazer, approved fluid, operation and audiovisual rehearsal in the scope.
Quick reference
| Control example | Haze | Fan |
|---|---|---|
| DMX start 001 | Channel 001 | Channel 002 |
| DMX start 511 | Channel 511 | Channel 512 |
| Standalone 612 | Step 1 | Step 2 |
Precautions
- Keep skin and hands at least 50 cm from the discharge nozzle; avoid directing continuous haze at nearby people or objects. Keep walkways visible and follow the venue’s stricter requirements.
- Use only the specified Luminous 7 fluid. A different hazer’s cleaning instructions do not establish a suitable procedure for Radiance; follow service documentation for the actual revision.
- After a suspected overvoltage connection, isolate and seek qualified assessment. A fuse with continuity does not establish that the machine is safe; do not bypass protection or keep trying power cycles.
Terms on this page
- DMX
- A data protocol controlling lighting functions; each model defines what its channels mean.
- Patch
- Assignment of fixture, profile, address and universe in the control system.
Help configuring this equipment
- Radiance Hazer Operators Manual — v.102020 (PDF) — gmbh.ultratecfx.com
Start with the model instructions and match the edition to the unit you will use.
- Ultratec Radiance Hazer — product / voltage variants — portal.ultratecfx.com
Identify the variant and distinguish model functions from optional accessories.
Documentation and sources
Consulted 2026-10-22. Scope: digital-display manual v.102020. Confirm code revision, voltage and accessories on the actual machine. Older switch versions need their matching instructions.
Guides to plan your system
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